diff --git a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
index 4c1aa18e695d..abf0d50aff37 100644
--- a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
@@ -2,9 +2,6 @@
   [Revoke blob URL after creating Request, will fetch]
     expected: FAIL
 
-  [Revoke blob URL after calling fetch, fetch should succeed]
-    expected: FAIL
-
 
 [url-with-fetch.any.html]
   [Revoke blob URL after creating Request, will fetch]
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index d3622831fda2..4ff61c1c047f 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -37,6 +37,12 @@
      {}
     ]
    ],
+   "css/css-flexbox/zero-content-size-with-scrollbar-crash.html": [
+    [
+     "css/css-flexbox/zero-content-size-with-scrollbar-crash.html",
+     {}
+    ]
+   ],
    "css/css-grid/subgrid/contain-strict-nested-subgrid-crash.html": [
     [
      "css/css-grid/subgrid/contain-strict-nested-subgrid-crash.html",
@@ -169,6 +175,12 @@
      {}
     ]
    ],
+   "html/rendering/non-replaced-elements/the-fieldset-and-legend-elements/fieldset-crash.html": [
+    [
+     "html/rendering/non-replaced-elements/the-fieldset-and-legend-elements/fieldset-crash.html",
+     {}
+    ]
+   ],
    "html/semantics/embedded-content/the-object-element/block-object-with-ruby-crash.html": [
     [
      "html/semantics/embedded-content/the-object-element/block-object-with-ruby-crash.html",
@@ -106181,6 +106193,54 @@
      {}
     ]
    ],
+   "css/compositing/root-element-background-transparency.html": [
+    [
+     "css/compositing/root-element-background-transparency.html",
+     [
+      [
+       "/css/compositing/root-element-background-transparency-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/compositing/root-element-blend-mode.html": [
+    [
+     "css/compositing/root-element-blend-mode.html",
+     [
+      [
+       "/css/compositing/root-element-blend-mode-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/compositing/root-element-filter.html": [
+    [
+     "css/compositing/root-element-filter.html",
+     [
+      [
+       "/css/compositing/root-element-filter-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/compositing/root-element-opacity.html": [
+    [
+     "css/compositing/root-element-opacity.html",
+     [
+      [
+       "/css/compositing/root-element-opacity-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/compositing/svg/mix-blend-mode-in-svg-image.html": [
     [
      "css/compositing/svg/mix-blend-mode-in-svg-image.html",
@@ -148799,6 +148859,30 @@
      {}
     ]
    ],
+   "css/css-text-decor/text-underline-position-001a.html": [
+    [
+     "css/css-text-decor/text-underline-position-001a.html",
+     [
+      [
+       "/css/css-text-decor/reference/text-underline-position-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-text-decor/text-underline-position-001b.html": [
+    [
+     "css/css-text-decor/text-underline-position-001b.html",
+     [
+      [
+       "/css/css-text-decor/reference/text-underline-position-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-text/boundary-shaping/boundary-shaping-001.html": [
     [
      "css/css-text/boundary-shaping/boundary-shaping-001.html",
@@ -166643,6 +166727,30 @@
      {}
     ]
    ],
+   "css/css-transforms/transform-translate-background-001.html": [
+    [
+     "css/css-transforms/transform-translate-background-001.html",
+     [
+      [
+       "/css/css-transforms/transform-translate-background-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-transforms/transform-translate-background-002.html": [
+    [
+     "css/css-transforms/transform-translate-background-002.html",
+     [
+      [
+       "/css/css-transforms/transform-translate-background-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-transforms/transform-translatex-001.html": [
     [
      "css/css-transforms/transform-translatex-001.html",
@@ -206997,6 +207105,18 @@
      {}
     ]
    ],
+   "html/rendering/replaced-elements/embedded-content/object-fallback-text-decoration.html": [
+    [
+     "html/rendering/replaced-elements/embedded-content/object-fallback-text-decoration.html",
+     [
+      [
+       "/html/rendering/replaced-elements/embedded-content/object-fallback-text-decoration-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "html/rendering/replaced-elements/embedded-content/video-controls-vertical-writing-mode.html": [
     [
      "html/rendering/replaced-elements/embedded-content/video-controls-vertical-writing-mode.html",
@@ -207153,6 +207273,18 @@
      {}
     ]
    ],
+   "html/rendering/the-details-element/summary-text-decoration.html": [
+    [
+     "html/rendering/the-details-element/summary-text-decoration.html",
+     [
+      [
+       "/html/rendering/the-details-element/summary-text-decoration-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "html/rendering/widgets/button-layout/anonymous-button-content-box.html": [
     [
      "html/rendering/widgets/button-layout/anonymous-button-content-box.html",
@@ -210941,6 +211073,18 @@
      {}
     ]
    ],
+   "svg/extensibility/foreignObject/foreign-object-scale-scroll.html": [
+    [
+     "svg/extensibility/foreignObject/foreign-object-scale-scroll.html",
+     [
+      [
+       "/svg/extensibility/foreignObject/foreign-object-scale-scroll-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "svg/extensibility/foreignObject/foreign-object-size.html": [
     [
      "svg/extensibility/foreignObject/foreign-object-size.html",
@@ -247632,6 +247776,18 @@
    "css/compositing/mix-blend-mode/support/yellow_square.svg": [
     []
    ],
+   "css/compositing/root-element-background-transparency-ref.html": [
+    []
+   ],
+   "css/compositing/root-element-blend-mode-ref.html": [
+    []
+   ],
+   "css/compositing/root-element-filter-ref.html": [
+    []
+   ],
+   "css/compositing/root-element-opacity-ref.html": [
+    []
+   ],
    "css/compositing/svg/reference/mix-blend-mode-svg-rectangle-ref.html": [
     []
    ],
@@ -259605,6 +259761,9 @@
    "css/css-text-decor/reference/text-underline-offset-vertical-002-ref.html": [
     []
    ],
+   "css/css-text-decor/reference/text-underline-position-001-ref.html": [
+    []
+   ],
    "css/css-text/META.yml": [
     []
    ],
@@ -262344,6 +262503,9 @@
    "css/css-transforms/transform-transformed-tr-percent-height-child-ref.html": [
     []
    ],
+   "css/css-transforms/transform-translate-background-001-ref.html": [
+    []
+   ],
    "css/css-transforms/transform-translate-ref.html": [
     []
    ],
@@ -273819,19 +273981,28 @@
    "html/cross-origin-opener-policy/historical/popup-same-site-with-same-site.https.html.headers": [
     []
    ],
-   "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups.https.html.headers": [
+   "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin-allow-popups.https.html.headers": [
     []
    ],
-   "html/cross-origin-opener-policy/iframe-popup-same-origin.https.html.headers": [
+   "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin.https.html.headers": [
     []
    ],
-   "html/cross-origin-opener-policy/iframe-popup-unsafe-none.https.html.headers": [
+   "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-unsafe-none.https.html.headers": [
     []
    ],
-   "html/cross-origin-opener-policy/no-https.html.headers": [
+   "html/cross-origin-opener-policy/iframe-popup-same-origin-to-same-origin.https.html.headers": [
     []
    ],
-   "html/cross-origin-opener-policy/popup-meta-http-equiv.https.html.headers": [
+   "html/cross-origin-opener-policy/iframe-popup-same-origin-to-unsafe-none.https.html.headers": [
+    []
+   ],
+   "html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-same-origin.https.html.headers": [
+    []
+   ],
+   "html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-unsafe-none.https.html.headers": [
+    []
+   ],
+   "html/cross-origin-opener-policy/no-https.html.headers": [
     []
    ],
    "html/cross-origin-opener-policy/popup-redirect-cache.https.html.headers": [
@@ -277272,6 +277443,9 @@
    "html/rendering/replaced-elements/embedded-content-rendering-rules/canvas_without_context_ref.html": [
     []
    ],
+   "html/rendering/replaced-elements/embedded-content/object-fallback-text-decoration-ref.html": [
+    []
+   ],
    "html/rendering/replaced-elements/embedded-content/video-controls-vertical-writing-mode-ref.html": [
     []
    ],
@@ -277317,6 +277491,9 @@
    "html/rendering/the-details-element/summary-display-list-item-ref.html": [
     []
    ],
+   "html/rendering/the-details-element/summary-text-decoration-ref.html": [
+    []
+   ],
    "html/rendering/widgets/button-layout/anonymous-button-content-box-ref.html": [
     []
    ],
@@ -279903,6 +280080,9 @@
    "infrastructure/metadata/infrastructure/reftest/legacy/reftest_fuzzy_chain_ini.html.ini": [
     []
    ],
+   "infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_1.html.ini": [
+    []
+   ],
    "infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_full.html.ini": [
     []
    ],
@@ -284850,6 +285030,9 @@
    "referrer-policy/gen/top.http-rp/unsafe-url/xhr/same-https.swap-origin.http.html.headers": [
     []
    ],
+   "referrer-policy/generic/inheritance/resources/make-html-script.js": [
+    []
+   ],
    "referrer-policy/generic/multiple-headers-and-values.html.headers": [
     []
    ],
@@ -287844,6 +288027,9 @@
    "svg/extensibility/foreignObject/foreign-object-paints-before-rect-ref.html": [
     []
    ],
+   "svg/extensibility/foreignObject/foreign-object-scale-scroll-ref.html": [
+    []
+   ],
    "svg/extensibility/foreignObject/foreign-object-size-ref.html": [
     []
    ],
@@ -292908,6 +293094,12 @@
    "trusted-types/empty-default-policy.tentative.html.headers": [
     []
    ],
+   "trusted-types/no-require-trusted-types-for-report-only.tentative.html.headers": [
+    []
+   ],
+   "trusted-types/require-trusted-types-for-report-only.tentative.html.headers": [
+    []
+   ],
    "trusted-types/support/WorkerGlobalScope-importScripts.https.js": [
     []
    ],
@@ -345434,9 +345626,9 @@
      {}
     ]
    ],
-   "element-timing/multiple-redirects-TAO.sub.html": [
+   "element-timing/multiple-redirects-TAO.html": [
     [
-     "element-timing/multiple-redirects-TAO.sub.html",
+     "element-timing/multiple-redirects-TAO.html",
      {}
     ]
    ],
@@ -362600,20 +362792,38 @@
    ],
    "html/cross-origin-opener-policy/coep-navigate-popup.https.html": [
     [
-     "html/cross-origin-opener-policy/coep-navigate-popup.https.html",
-     {}
+     "html/cross-origin-opener-policy/coep-navigate-popup.https.html?0-1",
+     {
+      "timeout": "long"
+     }
+    ],
+    [
+     "html/cross-origin-opener-policy/coep-navigate-popup.https.html?2-3",
+     {
+      "timeout": "long"
+     }
+    ],
+    [
+     "html/cross-origin-opener-policy/coep-navigate-popup.https.html?4-last",
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/coep-redirect.https.html": [
     [
      "html/cross-origin-opener-policy/coep-redirect.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/coep.https.html": [
     [
      "html/cross-origin-opener-policy/coep.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/coop-navigated-history-popup.https.html": [
@@ -362639,79 +362849,137 @@
    "html/cross-origin-opener-policy/historical/coep-navigate-popup-unsafe-inherit.https.html": [
     [
      "html/cross-origin-opener-policy/historical/coep-navigate-popup-unsafe-inherit.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-cross-origin.https.html": [
     [
      "html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-cross-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-origin.https.html": [
     [
      "html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-site.https.html": [
     [
      "html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-site.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-cross-origin.https.html": [
     [
      "html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-cross-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-origin.https.html": [
     [
      "html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-site.https.html": [
     [
      "html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-site.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/historical/popup-same-site-with-cross-origin.https.html": [
     [
      "html/cross-origin-opener-policy/historical/popup-same-site-with-cross-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/historical/popup-same-site-with-same-origin.https.html": [
     [
      "html/cross-origin-opener-policy/historical/popup-same-site-with-same-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/historical/popup-same-site-with-same-site.https.html": [
     [
      "html/cross-origin-opener-policy/historical/popup-same-site-with-same-site.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
-   "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups.https.html": [
+   "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin-allow-popups.https.html": [
     [
-     "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups.https.html",
-     {}
+     "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin-allow-popups.https.html",
+     {
+      "timeout": "long"
+     }
     ]
    ],
-   "html/cross-origin-opener-policy/iframe-popup-same-origin.https.html": [
+   "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin.https.html": [
     [
-     "html/cross-origin-opener-policy/iframe-popup-same-origin.https.html",
-     {}
+     "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin.https.html",
+     {
+      "timeout": "long"
+     }
     ]
    ],
-   "html/cross-origin-opener-policy/iframe-popup-unsafe-none.https.html": [
+   "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-unsafe-none.https.html": [
     [
-     "html/cross-origin-opener-policy/iframe-popup-unsafe-none.https.html",
-     {}
+     "html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-unsafe-none.https.html",
+     {
+      "timeout": "long"
+     }
+    ]
+   ],
+   "html/cross-origin-opener-policy/iframe-popup-same-origin-to-same-origin.https.html": [
+    [
+     "html/cross-origin-opener-policy/iframe-popup-same-origin-to-same-origin.https.html",
+     {
+      "timeout": "long"
+     }
+    ]
+   ],
+   "html/cross-origin-opener-policy/iframe-popup-same-origin-to-unsafe-none.https.html": [
+    [
+     "html/cross-origin-opener-policy/iframe-popup-same-origin-to-unsafe-none.https.html",
+     {
+      "timeout": "long"
+     }
+    ]
+   ],
+   "html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-same-origin.https.html": [
+    [
+     "html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-same-origin.https.html",
+     {
+      "timeout": "long"
+     }
+    ]
+   ],
+   "html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-unsafe-none.https.html": [
+    [
+     "html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-unsafe-none.https.html",
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/no-https.html": [
@@ -362739,19 +363007,25 @@
    "html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-cross-origin.https.html": [
     [
      "html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-cross-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-origin.https.html": [
     [
      "html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-site.https.html": [
     [
      "html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-site.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/popup-same-origin-non-initial-about-blank.https.html": [
@@ -362763,55 +363037,73 @@
    "html/cross-origin-opener-policy/popup-same-origin-with-cross-origin.https.html": [
     [
      "html/cross-origin-opener-policy/popup-same-origin-with-cross-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/popup-same-origin-with-same-origin.https.html": [
     [
      "html/cross-origin-opener-policy/popup-same-origin-with-same-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/popup-same-origin-with-same-site.https.html": [
     [
      "html/cross-origin-opener-policy/popup-same-origin-with-same-site.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/popup-unsafe-none-with-cross-origin.https.html": [
     [
      "html/cross-origin-opener-policy/popup-unsafe-none-with-cross-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/popup-unsafe-none-with-same-origin.https.html": [
     [
      "html/cross-origin-opener-policy/popup-unsafe-none-with-same-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/popup-unsafe-none-with-same-site.https.html": [
     [
      "html/cross-origin-opener-policy/popup-unsafe-none-with-same-site.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "html/cross-origin-opener-policy/popup-unspecified-with-cross-origin.https.html": [
     [
      "html/cross-origin-opener-policy/popup-unspecified-with-cross-origin.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
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    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executorservo.py": [
@@ -719950,7 +720494,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executorwebdriver.py": [
-   "0b329210fc546f9ee50a8a4d0ae02133e3446106",
+   "d09eb1e145170243dc9e74aa68f53d05154283fa",
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executorwebkit.py": [
@@ -720174,7 +720718,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/wptcommandline.py": [
-   "91f1161b01b99f31ef1d3dde05333627bf4365b2",
+   "5b7278b99ff4bfe03981f87671a240141bd0a037",
    "support"
   ],
   "tools/wptrunner/wptrunner/wptlogging.py": [
@@ -720670,7 +721214,7 @@
    "testharness"
   ],
   "trusted-types/GlobalEventHandlers-onclick.tentative.html": [
-   "8c9c2f1a70bdb368bf535f40b8eae136c2eee23a",
+   "6cbf680fa26d2e3aeea6152ecb22d3b8e2e1c098",
    "testharness"
   ],
   "trusted-types/HTMLElement-generic.tentative.html": [
@@ -720754,7 +721298,7 @@
    "testharness"
   ],
   "trusted-types/TrustedTypePolicyFactory-metadata.tentative.html": [
-   "da7d1b4f87700e15420c7c849eaa683cd42c0e5d",
+   "67c734b5a4285576bbe51f6e4f67e674ca1c1c03",
    "testharness"
   ],
   "trusted-types/Window-TrustedTypes.tentative.html": [
@@ -720762,51 +721306,51 @@
    "testharness"
   ],
   "trusted-types/WorkerGlobalScope-importScripts.https.html": [
-   "9dbfd7b93c97abda7beff52e2e9afebefe518f29",
+   "0aa965e16e08e9ba90b63ef0ab9e731f6ebffbdf",
    "testharness"
   ],
   "trusted-types/block-Node-multiple-arguments.tentative.html": [
-   "5552e1313728c9688b7dfa32a9ee2bea38faa151",
+   "879d34f96126945fb3ae78d9c5f86ccb04b1f39c",
    "testharness"
   ],
   "trusted-types/block-string-assignment-to-DOMParser-parseFromString.tentative.html": [
-   "82e31200e6ba5150672e28a898d70d71486ada8a",
+   "12cef6af661a5f56f59cdd7e6a5f81ae6e200b0c",
    "testharness"
   ],
   "trusted-types/block-string-assignment-to-DOMWindowTimers-setTimeout-setInterval.tentative.html": [
-   "468ed7b6975194ffde6b4106b0d78f5b99ca24ee",
+   "6d723ba23b6b196d97c3e5816e7d867803b95eb0",
    "testharness"
   ],
   "trusted-types/block-string-assignment-to-Document-write.tentative.html": [
-   "4defb56c88ed763bf65c3f45e16a7d56234b7970",
+   "1049b46563d4b95d089db0d18b37b90970f1018b",
    "testharness"
   ],
   "trusted-types/block-string-assignment-to-Element-insertAdjacentHTML.tentative.html": [
-   "37a73f08c20a297a74bd7025906444a1083cb0c1",
+   "1e8c091d87e70b5d3d037dd1a49fd4774aa56628",
    "testharness"
   ],
   "trusted-types/block-string-assignment-to-Element-outerHTML.tentative.html": [
-   "8f314a26bf5d522276864abdc989a403afdfd170",
+   "17815e6a9e9bfe4199d089f03504aa89d09203ff",
    "testharness"
   ],
   "trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html": [
-   "2639e16ea084063d90c7d176a576f2e77a4293d7",
+   "47c4c3557f8363af8fd3937401345ac56c9941eb",
    "testharness"
   ],
   "trusted-types/block-string-assignment-to-Element-setAttributeNS.tentative.html": [
-   "5754521b2bd78ebf31c496961108386aff23650f",
+   "cc8b05e8c8370a50da89d8232e7276ae4b75b356",
    "testharness"
   ],
   "trusted-types/block-string-assignment-to-HTMLElement-generic.tentative.html": [
-   "84ff83bc083ac473704d791f929df5ae6ba7f1f6",
+   "b5745199f41c49d7aab63822c3138548907544f0",
    "testharness"
   ],
   "trusted-types/block-string-assignment-to-Range-createContextualFragment.tentative.html": [
-   "61553eb71dfcf4a49e580450602aabcc3e515282",
+   "a57376206de6f1383ed716494fe328a842d37ba1",
    "testharness"
   ],
   "trusted-types/block-text-node-insertion-into-script-element.tentative.html": [
-   "04b19f7e42111a11073a4049350f7d8ddde7d1b2",
+   "1f5e8fda7aeacc4494643b570c9526fc3a855caa",
    "testharness"
   ],
   "trusted-types/csp-block-eval.tentative.html": [
@@ -720818,7 +721362,7 @@
    "testharness"
   ],
   "trusted-types/default-policy-report-only.tentative.html.headers": [
-   "fa87952ae486b3a902eca0257eadace8e25e881f",
+   "67b9ef7a3c5ef2f53775de6965ca12343026a829",
    "support"
   ],
   "trusted-types/default-policy.tentative.html": [
@@ -720826,7 +721370,7 @@
    "testharness"
   ],
   "trusted-types/default-policy.tentative.html.headers": [
-   "1bc33add09b4b34ce2cba21f488f8ed53345a27a",
+   "6a40e40a586a5b0ad3f01bf8e45402e74d424cd2",
    "support"
   ],
   "trusted-types/empty-default-policy-report-only.tentative.html": [
@@ -720834,7 +721378,7 @@
    "testharness"
   ],
   "trusted-types/empty-default-policy-report-only.tentative.html.headers": [
-   "fa87952ae486b3a902eca0257eadace8e25e881f",
+   "67b9ef7a3c5ef2f53775de6965ca12343026a829",
    "support"
   ],
   "trusted-types/empty-default-policy.tentative.html": [
@@ -720842,7 +721386,7 @@
    "testharness"
   ],
   "trusted-types/empty-default-policy.tentative.html.headers": [
-   "1bc33add09b4b34ce2cba21f488f8ed53345a27a",
+   "6a40e40a586a5b0ad3f01bf8e45402e74d424cd2",
    "support"
   ],
   "trusted-types/eval-csp-no-tt.tentative.html": [
@@ -720850,11 +721394,11 @@
    "testharness"
   ],
   "trusted-types/eval-csp-tt-default-policy.tentative.html": [
-   "8f1926d9cf26ff2f9b1be1c65e6c6784e75c24b2",
+   "eaa74eaf4cd03e0aa3da97e26f700317945a87da",
    "testharness"
   ],
   "trusted-types/eval-csp-tt-no-default-policy.tentative.html": [
-   "dc976d64abd62332366f3bee60b8915245fc437d",
+   "0da09a8a5cd1c2d353b17850ff89b607afa1873f",
    "testharness"
   ],
   "trusted-types/eval-no-csp-no-tt-default-policy.tentative.html": [
@@ -720866,19 +721410,43 @@
    "testharness"
   ],
   "trusted-types/eval-with-permissive-csp.tentative.html": [
-   "074fe79dc93fee6563bcb9ce2db3fa708bf4ad4f",
+   "32f12d8e129d69c225cc26e3b886f4ff91469542",
    "testharness"
   ],
   "trusted-types/idlharness.tentative.window.js": [
    "5a854a12b78026a3318dad70ffa0d6a690e39f55",
    "testharness"
   ],
+  "trusted-types/no-require-trusted-types-for-report-only.tentative.html": [
+   "56f6295221355dd0c0900f9932222c461c11eda8",
+   "testharness"
+  ],
+  "trusted-types/no-require-trusted-types-for-report-only.tentative.html.headers": [
+   "fa87952ae486b3a902eca0257eadace8e25e881f",
+   "support"
+  ],
+  "trusted-types/no-require-trusted-types-for.tentative.html": [
+   "4e11b03617beb3716f51653843fd458c69274758",
+   "testharness"
+  ],
+  "trusted-types/require-trusted-types-for-report-only.tentative.html": [
+   "25b4440ef4117010bb7da7c8f3ad87f01d3bf55f",
+   "testharness"
+  ],
+  "trusted-types/require-trusted-types-for-report-only.tentative.html.headers": [
+   "c6412f8d472fcfd6022b0ae485f52b3d3dedd820",
+   "support"
+  ],
+  "trusted-types/require-trusted-types-for.tentative.html": [
+   "95cfc4d106e5adfe6539641a3b046796b257b972",
+   "testharness"
+  ],
   "trusted-types/support/WorkerGlobalScope-importScripts.https.js": [
    "fa63c8bad0fcd9f93d89c8c3bea2d8a0b59d2094",
    "support"
   ],
   "trusted-types/support/WorkerGlobalScope-importScripts.https.js.headers": [
-   "1bc33add09b4b34ce2cba21f488f8ed53345a27a",
+   "6a40e40a586a5b0ad3f01bf8e45402e74d424cd2",
    "support"
   ],
   "trusted-types/support/helper.sub.js": [
@@ -720890,7 +721458,7 @@
    "support"
   ],
   "trusted-types/support/navigation-report-only-support.html.headers": [
-   "fa87952ae486b3a902eca0257eadace8e25e881f",
+   "67b9ef7a3c5ef2f53775de6965ca12343026a829",
    "support"
   ],
   "trusted-types/support/navigation-support.html": [
@@ -720898,7 +721466,7 @@
    "support"
   ],
   "trusted-types/support/navigation-support.html.headers": [
-   "1bc33add09b4b34ce2cba21f488f8ed53345a27a",
+   "6a40e40a586a5b0ad3f01bf8e45402e74d424cd2",
    "support"
   ],
   "trusted-types/support/worker.js": [
@@ -720906,7 +721474,7 @@
    "support"
   ],
   "trusted-types/trusted-types-createHTMLDocument.tentative.html": [
-   "6ab5f42d5ffd82ccc3bf5c9ea8916c2b2f810987",
+   "711e494a1607d575e1ee7f48693b5a442617ac42",
    "testharness"
   ],
   "trusted-types/trusted-types-duplicate-names-list-report-only.tentative.html": [
@@ -720926,39 +721494,39 @@
    "testharness"
   ],
   "trusted-types/trusted-types-eval-reporting-no-unsafe-eval.tentative.https.html": [
-   "7902df1c30385ef3896829c7c6f7af646b5403ed",
+   "786731041140b5bbe228869eeeb0ccb4bc6f1544",
    "testharness"
   ],
   "trusted-types/trusted-types-eval-reporting-no-unsafe-eval.tentative.https.html.headers": [
-   "4bc0bd3c1ab29d551a5e9988bde5a9dc8f6fa1a7",
+   "30fe3b1df1d8f10ea4eb495f53bf93066a9e5ecd",
    "support"
   ],
   "trusted-types/trusted-types-eval-reporting-report-only.tentative.https.html": [
-   "bd8933a48355f46f1973764874e017b263df197c",
+   "18c035215e0b9f1ba7b6fab226e9c9853049fa36",
    "testharness"
   ],
   "trusted-types/trusted-types-eval-reporting-report-only.tentative.https.html.headers": [
-   "ba26c77fbf498385424205b8bff0c404f0f5357b",
+   "1d7033658c1eccb672e85b281ba800832c972712",
    "support"
   ],
   "trusted-types/trusted-types-eval-reporting.tentative.https.html": [
-   "c751ae1330cd01cfb1c4b21d0a676576656837b2",
+   "a521f94389ae0412a36b87f60d5428415b184a88",
    "testharness"
   ],
   "trusted-types/trusted-types-eval-reporting.tentative.https.html.headers": [
-   "2e935f73a48c42346b6352fa6cd16d12294eebd8",
+   "91a2be91ef749e470f8998d7058871484dcb274d",
    "support"
   ],
   "trusted-types/trusted-types-navigation.tentative.html": [
-   "7f17c64e57090392c100eb0791372fcf9107de13",
+   "657cbb74e0ecd5b30fbd73fb73a54eb6db62dfd7",
    "testharness"
   ],
   "trusted-types/trusted-types-report-only.tentative.https.html": [
-   "bf0a1eb9c1911e2fb25ed89dbd14e7dfd86cf358",
+   "fcb77841163d9a09774497d2b8588f85c2a42b06",
    "testharness"
   ],
   "trusted-types/trusted-types-report-only.tentative.https.html.headers": [
-   "b38cfae2cb209eec5b8c9e8b0c774262694c1aec",
+   "857a8b31e86bc395e95913ee521d4fc73109c74c",
    "support"
   ],
   "trusted-types/trusted-types-reporting-check-report.https.html": [
@@ -720970,15 +721538,15 @@
    "support"
   ],
   "trusted-types/trusted-types-reporting.tentative.https.html": [
-   "10a951fa12cb8d69249a96cb85ce34f6136e52c5",
+   "ef282dc609c88c1e3add16ed4b3363e75030727a",
    "testharness"
   ],
   "trusted-types/trusted-types-reporting.tentative.https.html.headers": [
-   "947a151c874ce9d372baa786c1b2964cbd9bc279",
+   "fa8aceab74b0f6e937da3999d471f6afaac4c24e",
    "support"
   ],
   "trusted-types/tt-block-eval.tentative.html": [
-   "e721b0e0d3699301e7580dcaecf4fc189e077636",
+   "8fe8aa50d6c9f8e3ac5f1a01a0d41f84a5c03549",
    "testharness"
   ],
   "uievents/META.yml": [
@@ -724342,7 +724910,7 @@
    "testharness"
   ],
   "url/urlsearchparams-constructor.any.js": [
-   "398021dde2f35f427399c639871bfbb8106a3279",
+   "f7989f70ea0071bc7180e0a23f10aef55335734e",
    "testharness"
   ],
   "url/urlsearchparams-delete.any.js": [
@@ -730006,7 +730574,7 @@
    "testharness"
   ],
   "webrtc/RTCPeerConnection-createDataChannel.html": [
-   "58e757bce076e9b5ad16c5943ff3065b91305fae",
+   "943e5728775494b8c5be4c521ce9671cd4e1bc4e",
    "testharness"
   ],
   "webrtc/RTCPeerConnection-createOffer.html": [
@@ -736586,7 +737154,7 @@
    "support"
   ],
   "workers/modules/resources/dynamic-import-and-then-static-import-worker.js": [
-   "9a386e63be51dcdae988de99bdd76709bf49d1b6",
+   "527702f551174f8f2578fce16c7854351126e3a5",
    "support"
   ],
   "workers/modules/resources/dynamic-import-given-url-worker.js": [
@@ -736614,7 +737182,7 @@
    "support"
   ],
   "workers/modules/resources/dynamic-import-worker.js": [
-   "07f4df9db3ebd94dbc5ffd56fa7df36635a93857",
+   "2e756fe055e9e9ec815031483b02dc286918ca2c",
    "support"
   ],
   "workers/modules/resources/empty-worker.js": [
@@ -736622,7 +737190,7 @@
    "support"
   ],
   "workers/modules/resources/eval-dynamic-import-worker.js": [
-   "af57b19f98ddcae391c4a55eb7ad1f51a4a0acf5",
+   "60080d4292a8033e9824a289eef85574cc6a3a81",
    "support"
   ],
   "workers/modules/resources/export-on-dynamic-import-script.js": [
@@ -736654,7 +737222,7 @@
    "support"
   ],
   "workers/modules/resources/import-scripts-worker.js": [
-   "676cccb2ad7f6fc6c6a77474ca0683738db03983",
+   "d85f573ffe3afa285b931ca0b81c76e9388252e4",
    "support"
   ],
   "workers/modules/resources/import-test-cases.js": [
@@ -736662,11 +737230,11 @@
    "support"
   ],
   "workers/modules/resources/nested-dynamic-import-worker.js": [
-   "cb37f6e20f67c13f77582de19a1d4bd852537aa7",
+   "00da43c5f0787474462da62ec1dc6647aa2469b3",
    "support"
   ],
   "workers/modules/resources/nested-static-import-worker.js": [
-   "7599faaa099f594a05d71f628d548f6732b2b193",
+   "c3a9ff0b799d5a53aa2faf41289b20153d884c5d",
    "support"
   ],
   "workers/modules/resources/new-worker-window.html": [
@@ -736674,7 +737242,7 @@
    "support"
   ],
   "workers/modules/resources/post-message-on-load-worker.js": [
-   "93818ccad90c60547d724f8fdcdaf626b7301cb6",
+   "e1c547ab6a4d577280442dbfcbec5a5ec9296666",
    "support"
   ],
   "workers/modules/resources/referrer-checker.py": [
@@ -736682,7 +737250,7 @@
    "support"
   ],
   "workers/modules/resources/static-import-and-then-dynamic-import-worker.js": [
-   "cd98d8c17df652d367b0720492c432851f10f66a",
+   "2d857a2e90a11af9f52e5d59d15ee30d225deeaf",
    "support"
   ],
   "workers/modules/resources/static-import-non-existent-script-worker.js": [
@@ -736710,9 +737278,25 @@
    "support"
   ],
   "workers/modules/resources/static-import-worker.js": [
-   "48751dbe03bb0f7de23e26911ac7af5733c7d5f1",
+   "19a347999d386fd4df8dc831c6d164b27630ef7a",
    "support"
   ],
+  "workers/modules/shared-worker-import-blob-url.any.js": [
+   "d9e9e34c394bc171cd497c8527b4806dfc32c595",
+   "testharness"
+  ],
+  "workers/modules/shared-worker-import-failure.html": [
+   "0e0b9b306314fd96b48e0007918935bc56df2d53",
+   "testharness"
+  ],
+  "workers/modules/shared-worker-import.any.js": [
+   "450d4ad422b8da33d515da9b41557f488aff8bff",
+   "testharness"
+  ],
+  "workers/modules/shared-worker-options-type.html": [
+   "25b793c631de2899d6ddc73900716328ea8837f9",
+   "testharness"
+  ],
   "workers/name-property.html": [
    "ccc2a9de3a9c59acc19eefb247b1c92b78a52941",
    "testharness"
diff --git a/tests/wpt/metadata/css/cssom-view/CaretPosition-001.html.ini b/tests/wpt/metadata/css/cssom-view/CaretPosition-001.html.ini
new file mode 100644
index 000000000000..4c79907309ba
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom-view/CaretPosition-001.html.ini
@@ -0,0 +1,4 @@
+[CaretPosition-001.html]
+  [Element at (400, 100)]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/content-type/response.window.js.ini b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
index b91e94323309..ad82111842c2 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -318,18 +318,18 @@
   [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;charset=gbk text/plain text/html]
+  [<iframe>: combined response Content-Type: text/html;" text/plain]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
+  [<iframe>: combined response Content-Type: */* text/html]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" text/plain]
+  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/plain */*]
+  [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;x=" text/plain]
+  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/content-type/script.window.js.ini b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
index 5c0015928591..d2df9b78483b 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -56,6 +56,3 @@
   [separate text/javascript x/x]
     expected: FAIL
 
-  [separate text/javascript;charset=windows-1252 error text/javascript]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
index d4ba399b7623..536384f36e1c 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,6 +11,6 @@
   [X-Content-Type-Options%3A%20nosniff%0C]
     expected: FAIL
 
-  [X-Content-Type-Options%3A%20'NosniFF']
+  [X-Content-Type-Options%3A%20%2Cnosniff]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini b/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini
index 2644d64e6a0c..6bd06899fdd3 100644
--- a/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini
+++ b/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini
@@ -1,6 +1,6 @@
 [embedded-credentials.tentative.sub.html]
   type: testharness
-  expected: CRASH
+  expected: TIMEOUT
   [Embedded credentials are treated as network errors.]
     expected: FAIL
 
@@ -8,7 +8,7 @@
     expected: FAIL
 
   [Embedded credentials are treated as network errors in new windows.]
-    expected: TIMEOUT
+    expected: FAIL
 
   [Embedded credentials matching the top-level are treated as network errors for cross-origin URLs.]
     expected: TIMEOUT
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini
new file mode 100644
index 000000000000..75d75b4cda2e
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini
@@ -0,0 +1,4 @@
+[traverse_the_history_2.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
new file mode 100644
index 000000000000..385376c7321e
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
@@ -0,0 +1,4 @@
+[traverse_the_history_4.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-location-interface/location-protocol-setter-non-broken.html.ini b/tests/wpt/metadata/html/browsers/history/the-location-interface/location-protocol-setter-non-broken.html.ini
index ced665416699..02999abae840 100644
--- a/tests/wpt/metadata/html/browsers/history/the-location-interface/location-protocol-setter-non-broken.html.ini
+++ b/tests/wpt/metadata/html/browsers/history/the-location-interface/location-protocol-setter-non-broken.html.ini
@@ -1,5 +1,6 @@
 [location-protocol-setter-non-broken.html]
   type: testharness
+  expected: CRASH
   [Set data URL frame location.protocol to gopher]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini b/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini
index c12c0f8ae48c..6852d7663de0 100644
--- a/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini
+++ b/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini
@@ -1,4 +1,8 @@
 [skip-document-with-fragment.html]
+  expected: TIMEOUT
   [Autofocus elements in iframed documents with URL fragments should be skipped.]
     expected: FAIL
 
+  [Autofocus elements in top-level browsing context's documents with URI fragments should be skipped.]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
index b3bd9f4c289b..5f60c78e73cd 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,6 +1,6 @@
 [iframe_sandbox_popups_escaping-3.html]
   type: testharness
-  expected: CRASH
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
     expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
new file mode 100644
index 000000000000..178680e5d146
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
@@ -0,0 +1,2 @@
+[script-onerror-insertion-point-2.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/ignore-opens-during-unload.window.js.ini b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/ignore-opens-during-unload.window.js.ini
index 910c88d3e81f..69bd952d7565 100644
--- a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/ignore-opens-during-unload.window.js.ini
+++ b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/ignore-opens-during-unload.window.js.ini
@@ -1,5 +1,5 @@
 [ignore-opens-during-unload.window.html]
-  expected: CRASH
+  expected: TIMEOUT
   [ignore-opens-during-unload]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-document-write.html.ini b/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-document-write.html.ini
new file mode 100644
index 000000000000..92fcdd0c8381
--- /dev/null
+++ b/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-document-write.html.ini
@@ -0,0 +1,4 @@
+[iframe-inheritance-document-write.html]
+  [Referrer Policy: iframes with document.write()]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-javascript-child.html.ini b/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-javascript-child.html.ini
new file mode 100644
index 000000000000..8826ca3e1567
--- /dev/null
+++ b/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-javascript-child.html.ini
@@ -0,0 +1,7 @@
+[iframe-inheritance-javascript-child.html]
+  [Referrer Policy: iframes with javascript url reuse referrer policy]
+    expected: FAIL
+
+  [Referrer Policy: iframes with javascript url reuse referrer policy 2]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-javascript.html.ini b/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-javascript.html.ini
new file mode 100644
index 000000000000..7487d673a42c
--- /dev/null
+++ b/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-javascript.html.ini
@@ -0,0 +1,4 @@
+[iframe-inheritance-javascript.html]
+  [Referrer Policy: iframes with javascript url reuse referrer policy]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc.html.ini b/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc.html.ini
index 00076bbd03ac..e7f2f20a2020 100644
--- a/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc.html.ini
+++ b/tests/wpt/metadata/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc.html.ini
@@ -1,5 +1,4 @@
 [iframe-inheritance-srcdoc.html]
-  expected: TIMEOUT
   [iframes srcdoc correctly inherit the ancestor's referrer policy]
-    expected: NOTRUN
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/resource-timing/crossorigin-sandwich-TAO.sub.html.ini b/tests/wpt/metadata/resource-timing/crossorigin-sandwich-TAO.sub.html.ini
index b4090ef9fe25..1c7ec9ce1db1 100644
--- a/tests/wpt/metadata/resource-timing/crossorigin-sandwich-TAO.sub.html.ini
+++ b/tests/wpt/metadata/resource-timing/crossorigin-sandwich-TAO.sub.html.ini
@@ -1,5 +1,4 @@
 [crossorigin-sandwich-TAO.sub.html]
-  expected: ERROR
   [There should be one entry.]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/webxr/xrSession_input_events_end.https.html.ini b/tests/wpt/metadata/webxr/xrSession_input_events_end.https.html.ini
index 1c2f8518d1ab..1d6cd17924dd 100644
--- a/tests/wpt/metadata/webxr/xrSession_input_events_end.https.html.ini
+++ b/tests/wpt/metadata/webxr/xrSession_input_events_end.https.html.ini
@@ -1,5 +1,5 @@
 [xrSession_input_events_end.https.html]
   expected: TIMEOUT
   [Calling end during an input callback stops processing at the right time]
-    expected: FAIL
+    expected: TIMEOUT
 
diff --git a/tests/wpt/web-platform-tests/.azure-pipelines.yml b/tests/wpt/web-platform-tests/.azure-pipelines.yml
index 03e5a51cc8f7..7e1732fd45b1 100644
--- a/tests/wpt/web-platform-tests/.azure-pipelines.yml
+++ b/tests/wpt/web-platform-tests/.azure-pipelines.yml
@@ -19,6 +19,7 @@ trigger:
 # These are all the branches referenced in the jobs that follow.
 - epochs/daily
 - epochs/three_hourly
+- triggers/edge_stable
 - triggers/edge_dev
 - triggers/edge_canary
 - triggers/safari_stable
@@ -239,6 +240,42 @@ jobs:
     condition: always()
   - template: tools/ci/azure/cleanup_win10.yml
 
+- job: results_edge_stable
+  displayName: 'all tests: Edge Stable'
+  condition: |
+    or(eq(variables['Build.SourceBranch'], 'refs/heads/epochs/daily'),
+       eq(variables['Build.SourceBranch'], 'refs/heads/triggers/edge_stable'),
+       and(eq(variables['Build.Reason'], 'Manual'), variables['run_all_edge_stable']))
+  strategy:
+    parallel: 10 # chosen to make runtime ~2h
+  timeoutInMinutes: 180
+  pool:
+    name: 'Hosted Windows Client'
+  steps:
+  - template: tools/ci/azure/system_info.yml
+  - template: tools/ci/azure/checkout.yml
+  - template: tools/ci/azure/install_python.yml
+  - template: tools/ci/azure/pip_install.yml
+    parameters:
+      packages: virtualenv
+  - template: tools/ci/azure/install_certs.yml
+  - template: tools/ci/azure/install_edge.yml
+    parameters:
+      channel: stable
+  - template: tools/ci/azure/update_hosts.yml
+  - template: tools/ci/azure/update_manifest.yml
+  - script: python ./wpt run --yes --no-manifest-update --no-restart-on-unexpected --no-fail-on-unexpected --install-fonts --this-chunk $(System.JobPositionInPhase) --total-chunks $(System.TotalJobsInPhase) --chunk-type hash --log-wptreport $(Build.ArtifactStagingDirectory)/wpt_report_$(System.JobPositionInPhase).json --log-wptscreenshot $(Build.ArtifactStagingDirectory)/wpt_screenshot_$(System.JobPositionInPhase).txt --log-mach - --log-mach-level info --channel stable edgechromium
+    displayName: 'Run tests (Edge Stable)'
+  - task: PublishBuildArtifacts@1
+    displayName: 'Publish results'
+    inputs:
+      artifactName: 'edge-stable-results'
+  - template: tools/ci/azure/cleanup_win10.yml
+- template: tools/ci/azure/fyi_hook.yml
+  parameters:
+    dependsOn: results_edge_stable
+    artifactName: edge-stable-results
+
 - job: results_edge_dev
   displayName: 'all tests: Edge Dev'
   condition: |
diff --git a/tests/wpt/web-platform-tests/2dcontext/drawing-text-to-the-canvas/2d.text.measure.actualBoundingBox.html b/tests/wpt/web-platform-tests/2dcontext/drawing-text-to-the-canvas/2d.text.measure.actualBoundingBox.html
index 76fc17a882ff..834c1952c5ad 100644
--- a/tests/wpt/web-platform-tests/2dcontext/drawing-text-to-the-canvas/2d.text.measure.actualBoundingBox.html
+++ b/tests/wpt/web-platform-tests/2dcontext/drawing-text-to-the-canvas/2d.text.measure.actualBoundingBox.html
@@ -35,14 +35,15 @@ <h1>2d.text.measure.actualBoundingBox</h1>
         ctx.direction = 'ltr';
         ctx.align = 'left'
         ctx.baseline = 'alphabetic'
-        // Some platforms may return '-0'.
-        _assertSame(Math.abs(ctx.measureText('A').actualBoundingBoxLeft), 0, "Math.abs(ctx.measureText('A').actualBoundingBoxLeft)", "0");
         // Different platforms may render text slightly different.
+        // Values that are nominally expected to be zero might actually vary by a pixel or so
+        // if the UA accounts for antialiasing at glyph edges, so we allow a slight deviation.
+        _assert(Math.abs(ctx.measureText('A').actualBoundingBoxLeft) <= 1, "Math.abs(ctx.measureText('A').actualBoundingBoxLeft) <= 1");
         _assert(ctx.measureText('A').actualBoundingBoxRight >= 50, "ctx.measureText('A').actualBoundingBoxRight >= 50");
         _assert(ctx.measureText('A').actualBoundingBoxAscent >= 35, "ctx.measureText('A').actualBoundingBoxAscent >= 35");
-        _assertSame(Math.abs(ctx.measureText('A').actualBoundingBoxDescent), 0, "Math.abs(ctx.measureText('A').actualBoundingBoxDescent)", "0");
+        _assert(Math.abs(ctx.measureText('A').actualBoundingBoxDescent) <= 1, "Math.abs(ctx.measureText('A').actualBoundingBoxDescent) <= 1");
 
-        _assertSame(Math.abs(ctx.measureText('ABCD').actualBoundingBoxLeft), 0, "Math.abs(ctx.measureText('ABCD').actualBoundingBoxLeft)", "0");
+        _assert(Math.abs(ctx.measureText('ABCD').actualBoundingBoxLeft) <= 1, "Math.abs(ctx.measureText('ABCD').actualBoundingBoxLeft) <= 1");
         _assert(ctx.measureText('ABCD').actualBoundingBoxRight >= 200, "ctx.measureText('ABCD').actualBoundingBoxRight >= 200");
         _assert(ctx.measureText('ABCD').actualBoundingBoxAscent >= 85, "ctx.measureText('ABCD').actualBoundingBoxAscent >= 85");
         _assert(ctx.measureText('ABCD').actualBoundingBoxDescent >= 37, "ctx.measureText('ABCD').actualBoundingBoxDescent >= 37");
diff --git a/tests/wpt/web-platform-tests/2dcontext/tools/tests2dtext.yaml b/tests/wpt/web-platform-tests/2dcontext/tools/tests2dtext.yaml
index 6d5f8f660fa3..e1423284bd86 100644
--- a/tests/wpt/web-platform-tests/2dcontext/tools/tests2dtext.yaml
+++ b/tests/wpt/web-platform-tests/2dcontext/tools/tests2dtext.yaml
@@ -1088,14 +1088,15 @@
             ctx.direction = 'ltr';
             ctx.align = 'left'
             ctx.baseline = 'alphabetic'
-            // Some platforms may return '-0'.
-            @assert Math.abs(ctx.measureText('A').actualBoundingBoxLeft) === 0;
             // Different platforms may render text slightly different.
+            // Values that are nominally expected to be zero might actually vary by a pixel or so
+            // if the UA accounts for antialiasing at glyph edges, so we allow a slight deviation.
+            @assert Math.abs(ctx.measureText('A').actualBoundingBoxLeft) <= 1;
             @assert ctx.measureText('A').actualBoundingBoxRight >= 50;
             @assert ctx.measureText('A').actualBoundingBoxAscent >= 35;
-            @assert Math.abs(ctx.measureText('A').actualBoundingBoxDescent) === 0;
+            @assert Math.abs(ctx.measureText('A').actualBoundingBoxDescent) <= 1;
 
-            @assert Math.abs(ctx.measureText('ABCD').actualBoundingBoxLeft) === 0;
+            @assert Math.abs(ctx.measureText('ABCD').actualBoundingBoxLeft) <= 1;
             @assert ctx.measureText('ABCD').actualBoundingBoxRight >= 200;
             @assert ctx.measureText('ABCD').actualBoundingBoxAscent >= 85;
             @assert ctx.measureText('ABCD').actualBoundingBoxDescent >= 37;
diff --git a/tests/wpt/web-platform-tests/README.md b/tests/wpt/web-platform-tests/README.md
index 3b580da86901..482da428db4a 100644
--- a/tests/wpt/web-platform-tests/README.md
+++ b/tests/wpt/web-platform-tests/README.md
@@ -3,16 +3,15 @@ The web-platform-tests Project
 
 [![Taskcluster CI Status](https://community-tc.services.mozilla.com/api/github/v1/repository/web-platform-tests/wpt/master/badge.svg)](https://community-tc.services.mozilla.com/api/github/v1/repository/web-platform-tests/wpt/master/latest)
 
-The web-platform-tests Project is a W3C-coordinated attempt to build a
-cross-browser test suite for the Web-platform stack. Writing tests in a way
-that allows them to be run in all browsers gives browser projects
-confidence that they are shipping software that is compatible with other
-implementations, and that later implementations will be compatible with
-their implementations. This in turn gives Web authors/developers
-confidence that they can actually rely on the Web platform to deliver on
-the promise of working across browsers and devices without needing extra
-layers of abstraction to paper over the gaps left by specification
-editors and implementors.
+The web-platform-tests Project is a cross-browser test suite for the
+Web-platform stack. Writing tests in a way that allows them to be run in all
+browsers gives browser projects confidence that they are shipping software that
+is compatible with other implementations, and that later implementations will
+be compatible with their implementations. This in turn gives Web
+authors/developers confidence that they can actually rely on the Web platform
+to deliver on the promise of working across browsers and devices without
+needing extra layers of abstraction to paper over the gaps left by
+specification editors and implementors.
 
 The most important sources of information and activity are:
 
diff --git a/tests/wpt/web-platform-tests/css/compositing/root-element-background-transparency-ref.html b/tests/wpt/web-platform-tests/css/compositing/root-element-background-transparency-ref.html
new file mode 100644
index 000000000000..4671d44c1c3f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/compositing/root-element-background-transparency-ref.html
@@ -0,0 +1,7 @@
+<!doctype HTML>
+<title>Backround color transparency on the root element blends with a white backdrop</title>
+<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
+<link rel="help" href="https://drafts.fxtf.org/compositing/#pagebackdrop">
+<html style="background: rgb(150, 150, 150)">
+  <div id=spacer style="width: 100px; height: 3000px"></div>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/compositing/root-element-background-transparency.html b/tests/wpt/web-platform-tests/css/compositing/root-element-background-transparency.html
new file mode 100644
index 000000000000..910eb08e8d30
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/compositing/root-element-background-transparency.html
@@ -0,0 +1,8 @@
+<!doctype HTML>
+<title>Backround color transparency on the root element blends with a white backdrop</title>
+<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
+<link rel="help" href="https://drafts.fxtf.org/compositing/#pagebackdrop">
+<link rel="match" href="root-element-background-transparency-ref.html">
+<html style="background: rgba(45, 45, 45, 0.5)">
+  <div id=spacer style="width: 100px; height: 3000px"></div>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/compositing/root-element-blend-mode-ref.html b/tests/wpt/web-platform-tests/css/compositing/root-element-blend-mode-ref.html
new file mode 100644
index 000000000000..14c99f708564
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/compositing/root-element-blend-mode-ref.html
@@ -0,0 +1,6 @@
+<!doctype HTML>
+<title>Blend-mode on the root stacking context blends with the root element's background.</title>
+<html style="background: #000">
+  <div style="width: 50px; height: 50px; background: #000"></div>
+  <div id=spacer style="width: 100px; height: 3000px"></div>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/compositing/root-element-blend-mode.html b/tests/wpt/web-platform-tests/css/compositing/root-element-blend-mode.html
new file mode 100644
index 000000000000..2c97d8b5e8ca
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/compositing/root-element-blend-mode.html
@@ -0,0 +1,9 @@
+<!doctype HTML>
+<title>Blend-mode on the root stacking context blends with the root element's background.</title>
+<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
+<link rel="help" href="https://drafts.fxtf.org/compositing/#pagebackdrop">
+<link rel="match" href="root-element-blend-mode-ref.html">
+<html style="background: #000;">
+  <div style="width: 50px; height: 50px; background: #E33;  mix-blend-mode: multiply"></div>
+  <div id=spacer style="width: 100px; height: 3000px"></div>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/compositing/root-element-filter-ref.html b/tests/wpt/web-platform-tests/css/compositing/root-element-filter-ref.html
new file mode 100644
index 000000000000..27cfb11b8f48
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/compositing/root-element-filter-ref.html
@@ -0,0 +1,8 @@
+<!doctype HTML>
+<title>A filter on the root element applies to its background</title>
+<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
+<link rel="help" href="https://drafts.fxtf.org/compositing/#pagebackdrop">
+<html style="background: #FFF">
+  <div style="width: 50px; height: 50px; background: #1CC"></div>
+  <div id=spacer style="width: 100px; height: 3000px"></div>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/compositing/root-element-filter.html b/tests/wpt/web-platform-tests/css/compositing/root-element-filter.html
new file mode 100644
index 000000000000..62bde9dfd991
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/compositing/root-element-filter.html
@@ -0,0 +1,9 @@
+<!doctype HTML>
+<title>A filter on the root element applies to its background</title>
+<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
+<link rel="help" href="https://drafts.fxtf.org/compositing/#pagebackdrop">
+<link rel="match" href="root-element-filter-ref.html">
+<html style="filter: invert(1); background: #000">
+  <div style="width: 50px; height: 50px; background: #E33"></div>
+  <div id=spacer style="width: 100px; height: 3000px"></div>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/compositing/root-element-opacity-ref.html b/tests/wpt/web-platform-tests/css/compositing/root-element-opacity-ref.html
new file mode 100644
index 000000000000..be2348ab967f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/compositing/root-element-opacity-ref.html
@@ -0,0 +1,7 @@
+<!doctype HTML>
+<title>Opacity on the root element blends with a white backdrop</title>
+<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
+<link rel="help" href="https://drafts.fxtf.org/compositing/#pagebackdrop">
+<html style="background: #DDD">
+  <div id=spacer style="width: 100px; height: 3000px"></div>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/compositing/root-element-opacity.html b/tests/wpt/web-platform-tests/css/compositing/root-element-opacity.html
new file mode 100644
index 000000000000..4885d805ad3f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/compositing/root-element-opacity.html
@@ -0,0 +1,8 @@
+<!doctype HTML>
+<title>Opacity on the root element blends with a white background</title>
+<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
+<link rel="help" href="https://drafts.fxtf.org/compositing/#pagebackdrop">
+<link rel="match" href="root-element-opacity-ref.html">
+<html style="background: #BBB; opacity: 0.5">
+  <div id=spacer style="width: 100px; height: 3000px"></div>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/zero-content-size-with-scrollbar-crash.html b/tests/wpt/web-platform-tests/css/css-flexbox/zero-content-size-with-scrollbar-crash.html
new file mode 100644
index 000000000000..c38659a9d8cf
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/zero-content-size-with-scrollbar-crash.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/">
+<meta name="assert" content="This test passes if the renderer does not crash."/>
+<div style="display: flex;">
+  <div style="max-width: 0px; overflow: scroll;"></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-text-decor/reference/text-underline-position-001-ref.html b/tests/wpt/web-platform-tests/css/css-text-decor/reference/text-underline-position-001-ref.html
new file mode 100644
index 000000000000..aae441ac4e02
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-text-decor/reference/text-underline-position-001-ref.html
@@ -0,0 +1,83 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <title>text-underline-position reference file</title>
+    <style>
+        .outer {
+            margin: 1em;
+            clear: left;
+        }
+        .outer > div {
+            margin: .25em;
+            padding: .25em;
+            float: left;
+            border: 1px dotted gray;
+        }
+        u {
+            text-decoration: 2px green underline;
+            text-underline-offset: .25em;
+        }
+        .test1 > div {
+            writing-mode: initial;
+        }
+        .test2 > div {
+            writing-mode: sideways-rl;
+        }
+        .test3 > div {
+            writing-mode: sideways-lr;
+        }
+        .test4 > div {
+            writing-mode: vertical-rl;
+            text-orientation: sideways;
+        }
+        .test5 > div {
+            writing-mode: vertical-lr;
+            text-orientation: sideways;
+        }
+    </style>
+</head>
+<body>
+    <p class="instructions">Test passes if the left and right boxes match in each case:</p>
+    <div class="outer test1">
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test2">
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test3">
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test4">
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test5">
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-text-decor/text-underline-position-001a.html b/tests/wpt/web-platform-tests/css/css-text-decor/text-underline-position-001a.html
new file mode 100644
index 000000000000..f79fc9d39fe1
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-text-decor/text-underline-position-001a.html
@@ -0,0 +1,90 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <title>text-underline-position test case</title>
+    <meta name="assert" content="text-underline-position:left has no effect in horizontal typographic mode">
+    <link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+    <link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#underline-left">
+    <link rel="match" href="reference/text-underline-position-001-ref.html">
+    <style>
+        .outer {
+            margin: 1em;
+            clear: left;
+        }
+        .outer > div {
+            margin: .25em;
+            padding: .25em;
+            float: left;
+            border: 1px dotted gray;
+        }
+        u {
+            text-decoration: 2px green underline;
+            text-underline-offset: .25em;
+        }
+        .test1 > div {
+            writing-mode: initial;
+        }
+        .test2 > div {
+            writing-mode: sideways-rl;
+        }
+        .test3 > div {
+            writing-mode: sideways-lr;
+        }
+        .test4 > div {
+            writing-mode: vertical-rl;
+            text-orientation: sideways;
+        }
+        .test5 > div {
+            writing-mode: vertical-lr;
+            text-orientation: sideways;
+        }
+        .test {
+            text-underline-position: left;
+        }
+    </style>
+</head>
+<body>
+    <p class="instructions">Test passes if the left and right boxes match in each case:</p>
+    <div class="outer test1">
+        <div>
+            <p><u class="test">underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test2">
+        <div>
+            <p><u class="test">underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test3">
+        <div>
+            <p><u class="test">underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test4">
+        <div>
+            <p><u class="test">underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test5">
+        <div>
+            <p><u class="test">underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-text-decor/text-underline-position-001b.html b/tests/wpt/web-platform-tests/css/css-text-decor/text-underline-position-001b.html
new file mode 100644
index 000000000000..f8c6ff9aadac
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-text-decor/text-underline-position-001b.html
@@ -0,0 +1,90 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <title>text-underline-position test case</title>
+    <meta name="assert" content="text-underline-position:right has no effect in horizontal typographic mode">
+    <link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
+    <link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#underline-right">
+    <link rel="match" href="reference/text-underline-position-001-ref.html">
+    <style>
+        .outer {
+            margin: 1em;
+            clear: left;
+        }
+        .outer > div {
+            margin: .25em;
+            padding: .25em;
+            float: left;
+            border: 1px dotted gray;
+        }
+        u {
+            text-decoration: 2px green underline;
+            text-underline-offset: .25em;
+        }
+        .test1 > div {
+            writing-mode: initial;
+        }
+        .test2 > div {
+            writing-mode: sideways-rl;
+        }
+        .test3 > div {
+            writing-mode: sideways-lr;
+        }
+        .test4 > div {
+            writing-mode: vertical-rl;
+            text-orientation: sideways;
+        }
+        .test5 > div {
+            writing-mode: vertical-lr;
+            text-orientation: sideways;
+        }
+        .test {
+            text-underline-position: right;
+        }
+    </style>
+</head>
+<body>
+    <p class="instructions">Test passes if the left and right boxes match in each case:</p>
+    <div class="outer test1">
+        <div>
+            <p><u class="test">underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test2">
+        <div>
+            <p><u class="test">underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test3">
+        <div>
+            <p><u class="test">underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test4">
+        <div>
+            <p><u class="test">underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+    <div class="outer test5">
+        <div>
+            <p><u class="test">underlined</u></p>
+        </div>
+        <div>
+            <p><u>underlined</u></p>
+        </div>
+    </div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-transforms/transform-translate-background-001-ref.html b/tests/wpt/web-platform-tests/css/css-transforms/transform-translate-background-001-ref.html
new file mode 100644
index 000000000000..f0b53d492a00
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-transforms/transform-translate-background-001-ref.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+<meta charset="utf-8">
+<title>CSS Transforms: Reference Translate gradient background on root element</title>
+<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
+<style>
+  html {
+    background: green;
+  }
+</style>
+<div style="height: 400vh;"></div>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-transforms/transform-translate-background-001.html b/tests/wpt/web-platform-tests/css/css-transforms/transform-translate-background-001.html
new file mode 100644
index 000000000000..72011e37bce0
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-transforms/transform-translate-background-001.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+<meta charset="utf-8">
+<title>CSS Transforms: Translate gradient background on root element</title>
+<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-transforms/#transform-rendering">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=988446">
+<link rel="match" href="transform-translate-background-001-ref.html">
+<meta name="assert" content="Checks that the linear gradient is modified when you vertically translate the root element. The test passes if you see only green.">
+<style>
+  html {
+    background: linear-gradient(to bottom, red 0%, red 50%, green 50%, green 100%);
+    transform: translate(0, -250vh);
+  }
+</style>
+<div style="height: 400vh;"></div>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-transforms/transform-translate-background-002.html b/tests/wpt/web-platform-tests/css/css-transforms/transform-translate-background-002.html
new file mode 100644
index 000000000000..b1be52774007
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-transforms/transform-translate-background-002.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<meta charset="utf-8">
+<title>CSS Transforms: Dynamically translate gradient background on root element</title>
+<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-transforms/#transform-rendering">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=988446">
+<link rel="match" href="transform-translate-background-001-ref.html">
+<meta name="assert" content="Checks that the linear gradient is modified when you dynamically translate the root element. The test passes if you see only green.">
+<script src="/common/reftest-wait.js"></script>
+<style>
+  html {
+    background: linear-gradient(to bottom, red 0%, red 50%, green 50%, green 100%);
+  }
+</style>
+<div style="height: 400vh;"></div>
+<script>
+  requestAnimationFrame(() => requestAnimationFrame(() => {
+    document.documentElement.style.transform = "translate(0, -250vh)";
+    takeScreenshot();
+  }));
+</script>
+</html>
diff --git a/tests/wpt/web-platform-tests/docs/index.md b/tests/wpt/web-platform-tests/docs/index.md
index d1a527e1a754..419c99aca9d7 100644
--- a/tests/wpt/web-platform-tests/docs/index.md
+++ b/tests/wpt/web-platform-tests/docs/index.md
@@ -1,15 +1,14 @@
 # web-platform-tests documentation
 
-The web-platform-tests project is a W3C-coordinated attempt to build a
-cross-browser test suite for [the Web-platform
-stack](https://platform.html5.org). Writing tests in a way that allows them to
-be run in all browsers gives browser projects confidence that they are shipping
-software which is compatible with other implementations, and that later
-implementations will be compatible with their implementations. This in turn
-gives Web authors/developers confidence that they can actually rely on the Web
-platform to deliver on the promise of working across browsers and devices
-without needing extra layers of abstraction to paper over the gaps left by
-specification editors and implementors.
+The web-platform-tests project is a cross-browser test suite for [the
+Web-platform stack](https://platform.html5.org). Writing tests in a way that
+allows them to be run in all browsers gives browser projects confidence that
+they are shipping software which is compatible with other implementations, and
+that later implementations will be compatible with their implementations. This
+in turn gives Web authors/developers confidence that they can actually rely on
+the Web platform to deliver on the promise of working across browsers and
+devices without needing extra layers of abstraction to paper over the gaps left
+by specification editors and implementors.
 
 
 The most important sources of information and activity are:
diff --git a/tests/wpt/web-platform-tests/docs/writing-tests/testharness-api.md b/tests/wpt/web-platform-tests/docs/writing-tests/testharness-api.md
index a17f5795bc33..c882e4daa2d9 100644
--- a/tests/wpt/web-platform-tests/docs/writing-tests/testharness-api.md
+++ b/tests/wpt/web-platform-tests/docs/writing-tests/testharness-api.md
@@ -180,8 +180,12 @@ In the example above, `foo()` returns a Promise that resolves with the string
 "foo". The `test_function` passed into `promise_test` invokes `foo` and attaches
 a resolve reaction that verifies the returned value.
 
-Note that in the promise chain constructed in `test_function` assertions don't
-need to be wrapped in `step` or `step_func` calls.
+Note that in the promise chain constructed in `test_function`
+assertions don't need to be wrapped in `step` or `step_func`
+calls. However when mixing event handlers and `promise_test`, the
+event handler callback functions *do* need to be wrapped since an
+exception in these functions does not cause the promise chain to
+reject.
 
 Unlike Asynchronous Tests, Promise Tests don't start running until after the
 previous Promise Test finishes. [Under rare
diff --git a/tests/wpt/web-platform-tests/element-timing/multiple-redirects-TAO.sub.html b/tests/wpt/web-platform-tests/element-timing/multiple-redirects-TAO.html
similarity index 100%
rename from tests/wpt/web-platform-tests/element-timing/multiple-redirects-TAO.sub.html
rename to tests/wpt/web-platform-tests/element-timing/multiple-redirects-TAO.html
diff --git a/tests/wpt/web-platform-tests/fetch/api/policies/referrer-origin-when-cross-origin.html b/tests/wpt/web-platform-tests/fetch/api/policies/referrer-origin-when-cross-origin.html
index 18de7364634d..5cd79e4b5361 100644
--- a/tests/wpt/web-platform-tests/fetch/api/policies/referrer-origin-when-cross-origin.html
+++ b/tests/wpt/web-platform-tests/fetch/api/policies/referrer-origin-when-cross-origin.html
@@ -7,6 +7,7 @@
     <meta name="help" href="https://fetch.spec.whatwg.org/#http-network-or-cache-fetch">
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
   </head>
   <body>
     <script src="../resources/utils.js"></script>
diff --git a/tests/wpt/web-platform-tests/fetch/api/policies/referrer-origin-when-cross-origin.js b/tests/wpt/web-platform-tests/fetch/api/policies/referrer-origin-when-cross-origin.js
index 7cd4113f506f..0adadbc55081 100644
--- a/tests/wpt/web-platform-tests/fetch/api/policies/referrer-origin-when-cross-origin.js
+++ b/tests/wpt/web-platform-tests/fetch/api/policies/referrer-origin-when-cross-origin.js
@@ -1,6 +1,7 @@
 if (this.document === undefined) {
   importScripts("/resources/testharness.js");
   importScripts("../resources/utils.js");
+  importScripts("/common/get-host-info.sub.js");
 
   // A nested importScripts() with a referrer-policy should have no effect
   // on overall worker policy.
@@ -8,7 +9,7 @@ if (this.document === undefined) {
 }
 
 var referrerOrigin = location.origin + '/';
-var fetchedUrl = "https://{{domains[www]}}:{{ports[https][0]}}" + dirname(location.pathname) + RESOURCES_DIR + "inspect-headers.py?cors&headers=referer";
+var fetchedUrl = get_host_info().HTTP_REMOTE_ORIGIN + dirname(location.pathname) + RESOURCES_DIR + "inspect-headers.py?cors&headers=referer";
 
 promise_test(function(test) {
   return fetch(fetchedUrl).then(function(resp) {
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/blob-popup.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/blob-popup.https.html
index 4aef1b848917..a4e53e780626 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/blob-popup.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/blob-popup.https.html
@@ -20,15 +20,17 @@
   const blobContents = `<script>
 const w = window.open("${get_host_info().HTTPS_REMOTE_ORIGIN}/html/cross-origin-opener-policy/resources/coop-coep.py?coop=x&coep=x&channel=${bc.name}", "${bc.name}");
 window.opener.furtherPopup = w;
-
-// w will be closed by its postback iframe. When out of process,
-// window.close() does not work.
-window.opener.test.add_cleanup(() => w.close());
 <\/script>`;
   const blob = new Blob([blobContents], { type: "text/html" });
   const blobURL = URL.createObjectURL(blob);
   const popup = window.open(blobURL);
-  t.add_cleanup(() => popup.close());
+  t.add_cleanup(() => {
+    // Close the popups once the test is complete.
+    // The browsing context of the second popup is closed hence use the
+    //  broadcast channel to trigger the closure.
+    bc.postMessage("close");
+    popup.close();
+  });
   popup.onload = t.step_func(() => {
     assert_equals(popup.opener, window);
     assert_equals(popup.location.href, blobURL);
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep-navigate-popup.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep-navigate-popup.https.html
index faa2793e5faa..714a4b6c4270 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep-navigate-popup.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep-navigate-popup.https.html
@@ -1,8 +1,12 @@
 <!doctype html>
 <title>Cross-Origin-Opener-Policy and Cross-Origin-Embedder-Policy: a navigating popup</title>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
+<meta name=variant content=?0-1>
+<meta name=variant content=?2-3>
+<meta name=variant content=?4-last>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
+<script src="/common/subset-tests.js"></script>
 <script src="/common/get-host-info.sub.js"></script>
 <script src="resources/common.js"></script>
 <script>
@@ -35,7 +39,7 @@
     "title": "coop unsafe-none/coep",
     "coop": "unsafe-none",
     "coep": "require-corp",
-    "opener": true
+    "opener": false
   },
   {
     "title": "coop unsafe-none/no coep",
@@ -43,7 +47,12 @@
     "coep": "",
     "opener": false
   }
-].forEach(variant => {
+].forEach((variant, i) => {
+  // Only run specified variants
+  if (!shouldRunSubTest(i)) {
+    return;
+  }
+
   ["same-origin", "same-site"].forEach(site => {
     const title = `Popup navigating to ${site} with ${variant.title}`;
     const channel = title.replace(/ /g,"-");
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep-redirect.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep-redirect.https.html
index 2727013783fa..83f8f8a33d4b 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep-redirect.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep-redirect.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <title>Cross-Origin-Opener-Policy and Cross-Origin-Embedder-Policy: redirects</title>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
@@ -47,7 +47,7 @@
     "redirectCOEP": "require-corp",
     "coop": "same-origin",
     "coep": "require-corp",
-    "opener": true
+    "opener": false
   },
   {
     "title": "coop unsafe-none/coep to coop unsafe-inherit/coep",
@@ -55,7 +55,7 @@
     "redirectCOEP": "require-corp",
     "coop": "unsafe-none",
     "coep": "require-corp",
-    "opener": true
+    "opener": false
   }
 ].forEach(variant => {
   const title = `Redirect from ${variant.title}`;
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep.https.html
index de1dd56d9d55..f6d975564f4f 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coep.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <title>Cross-Origin-Opener-Policy and Cross-Origin-Embedder-Policy</title>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
@@ -17,7 +17,7 @@
     "title": "popup with coop unsafe-none/coep",
     "coop": "unsafe-none",
     "coep": "require-corp",
-    "opener": true
+    "opener": false
   },
   {
     "title": "popup with coop unsafe-none without coep",
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coop-navigated-history-popup.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coop-navigated-history-popup.https.html
index bd1cabafd416..a061be992c1a 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coop-navigated-history-popup.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coop-navigated-history-popup.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <title>Cross-Origin-Opener-Policy: a navigating popup that then goes back in history</title>
-<meta name="timeout" content="long">
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coop-navigated-popup.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coop-navigated-popup.https.html
index 3c6019ace0b3..e1741932919a 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coop-navigated-popup.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/coop-navigated-popup.https.html
@@ -12,7 +12,12 @@
   const noCOOP = "/common/blank.html";
   const popupName = token();
   const popup = window.open(noCOOP, popupName);
-  t.add_cleanup(() => popup.close());
+  // Close the popup once the test is complete.
+  // The browsing context is closed after the navigation hence use the broadcast channel
+  // to trigger the closure.
+  t.add_cleanup(() => {
+    bc.postMessage("close");
+  });
   popup.onload = t.step_func(() => {
     assert_equals(popup.name, popupName);
     assert_equals(new URL(popup.document.URL).pathname, noCOOP);
@@ -23,6 +28,7 @@
       // string comparison to "" to keep the random token out of error messages.
       assert_equals(payload.name.length, 0);
       assert_false(payload.opener);
+      assert_true(popup.closed);
     });
     const coop = `resources/coop-coep.py?coop=same-origin&coep=&channel=${channel.name}`;
     popup.location = coop;
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/coep-navigate-popup-unsafe-inherit.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/coep-navigate-popup-unsafe-inherit.https.html
index 73ef1ea29a2e..c389058d9edc 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/coep-navigate-popup-unsafe-inherit.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/coep-navigate-popup-unsafe-inherit.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <title>Historical: Cross-Origin-Opener-Policy and Cross-Origin-Embedder-Policy: a navigating popup</title>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-cross-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-cross-origin.https.html
index a8b6d543cd01..1f522f70e68c 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-cross-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-cross-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-origin.https.html
index aaaae2dc3179..d7686f23d37c 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-site.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-site.https.html
index fd58b06f7839..9a1dc11b417a 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-site.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-origin-unsafe-allow-outgoing-with-same-site.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-cross-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-cross-origin.https.html
index 7330ff75bcff..b54ff2f49557 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-cross-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-cross-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-origin.https.html
index 01cc6719fd3a..b2279094b170 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-site.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-site.https.html
index b1a664dd9a5b..371aa41d0117 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-site.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-unsafe-allow-outgoing-with-same-site.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-cross-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-cross-origin.https.html
index d0fc7c79841e..af14446257ba 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-cross-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-cross-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-same-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-same-origin.https.html
index 67d2523e28d9..ec463a177065 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-same-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-same-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-same-site.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-same-site.https.html
index 78b7ca8fcad0..80ed35424c99 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-same-site.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/historical/popup-same-site-with-same-site.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin-allow-popups.https.html
similarity index 52%
rename from tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups.https.html
rename to tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin-allow-popups.https.html
index 0c33b40b181b..b03949e7a9f9 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin-allow-popups.https.html
@@ -1,5 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
@@ -8,15 +9,6 @@
 <div id=log></div>
 <script>
 [
-[SAME_ORIGIN, SAME_ORIGIN, "same-origin", false, false],
-[SAME_SITE, SAME_ORIGIN, "same-origin", false, false],
-[CROSS_ORIGIN, SAME_ORIGIN, "same-origin", false, false],
-[SAME_ORIGIN, SAME_SITE, "same-origin", false, false],
-[SAME_SITE, SAME_SITE, "same-origin", false, false],
-[CROSS_ORIGIN, SAME_SITE, "same-origin", false, false],
-[SAME_ORIGIN, CROSS_ORIGIN, "same-origin", false, false],
-[SAME_SITE, CROSS_ORIGIN, "same-origin", false, false],
-[CROSS_ORIGIN, CROSS_ORIGIN, "same-origin", false, false],
 [SAME_ORIGIN, SAME_ORIGIN, "same-origin-allow-popups", true, true],
 [SAME_SITE, SAME_ORIGIN, "same-origin-allow-popups", false, false],
 [CROSS_ORIGIN, SAME_ORIGIN, "same-origin-allow-popups", false, false],
@@ -26,15 +18,6 @@
 [SAME_ORIGIN, CROSS_ORIGIN, "same-origin-allow-popups", false, false],
 [SAME_SITE, CROSS_ORIGIN, "same-origin-allow-popups", false, false],
 [CROSS_ORIGIN, CROSS_ORIGIN, "same-origin-allow-popups", false, false],
-[SAME_ORIGIN, SAME_ORIGIN, "", true, true],
-[SAME_SITE, SAME_ORIGIN, "", true, true],
-[CROSS_ORIGIN, SAME_ORIGIN, "", true, true],
-[SAME_ORIGIN, SAME_SITE, "", true, true],
-[SAME_SITE, SAME_SITE, "", true, true],
-[CROSS_ORIGIN, SAME_SITE, "", true, true],
-[SAME_ORIGIN, CROSS_ORIGIN, "", true, true],
-[SAME_SITE, CROSS_ORIGIN, "", true, true],
-[CROSS_ORIGIN, CROSS_ORIGIN, "", true, true],
 ].forEach( value => {
     run_coop_test_iframe("same-origin-allow-popups", value[0], value[1], value[2], value[3], value[4]);
 });
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups.https.html.headers b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin-allow-popups.https.html.headers
similarity index 100%
rename from tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups.https.html.headers
rename to tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin-allow-popups.https.html.headers
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin.https.html
new file mode 100644
index 000000000000..66b0a4afa7fd
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin.https.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<meta charset=utf-8>
+<meta name=timeout content=long>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="resources/common.js"></script>
+
+<div id=log></div>
+<script>
+[
+[SAME_ORIGIN, SAME_ORIGIN, "same-origin", false, false],
+[SAME_SITE, SAME_ORIGIN, "same-origin", false, false],
+[CROSS_ORIGIN, SAME_ORIGIN, "same-origin", false, false],
+[SAME_ORIGIN, SAME_SITE, "same-origin", false, false],
+[SAME_SITE, SAME_SITE, "same-origin", false, false],
+[CROSS_ORIGIN, SAME_SITE, "same-origin", false, false],
+[SAME_ORIGIN, CROSS_ORIGIN, "same-origin", false, false],
+[SAME_SITE, CROSS_ORIGIN, "same-origin", false, false],
+[CROSS_ORIGIN, CROSS_ORIGIN, "same-origin", false, false],
+].forEach( value => {
+    run_coop_test_iframe("same-origin-allow-popups", value[0], value[1], value[2], value[3], value[4]);
+});
+
+
+</script>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin.https.html.headers b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin.https.html.headers
new file mode 100644
index 000000000000..d83ed86fb9b5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin.https.html.headers
@@ -0,0 +1 @@
+Cross-Origin-Opener-Policy: same-origin-allow-popups
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-unsafe-none.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-unsafe-none.https.html
new file mode 100644
index 000000000000..d2f2783606e6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-unsafe-none.https.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<meta charset=utf-8>
+<meta name=timeout content=long>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="resources/common.js"></script>
+
+<div id=log></div>
+<script>
+[
+[SAME_ORIGIN, SAME_ORIGIN, "", true, true],
+[SAME_SITE, SAME_ORIGIN, "", true, true],
+[CROSS_ORIGIN, SAME_ORIGIN, "", true, true],
+[SAME_ORIGIN, SAME_SITE, "", true, true],
+[SAME_SITE, SAME_SITE, "", true, true],
+[CROSS_ORIGIN, SAME_SITE, "", true, true],
+[SAME_ORIGIN, CROSS_ORIGIN, "", true, true],
+[SAME_SITE, CROSS_ORIGIN, "", true, true],
+[CROSS_ORIGIN, CROSS_ORIGIN, "", true, true],
+].forEach( value => {
+    run_coop_test_iframe("same-origin-allow-popups", value[0], value[1], value[2], value[3], value[4]);
+});
+
+
+</script>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-unsafe-none.https.html.headers b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-unsafe-none.https.html.headers
new file mode 100644
index 000000000000..d83ed86fb9b5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-unsafe-none.https.html.headers
@@ -0,0 +1 @@
+Cross-Origin-Opener-Policy: same-origin-allow-popups
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-to-same-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-to-same-origin.https.html
new file mode 100644
index 000000000000..635f7ab3b872
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-to-same-origin.https.html
@@ -0,0 +1,25 @@
+<!doctype html>
+<meta charset=utf-8>
+<meta name=timeout content=long>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="resources/common.js"></script>
+
+<div id=log></div>
+<script>
+[
+[SAME_ORIGIN, SAME_ORIGIN, "same-origin", true, true],
+[SAME_SITE, SAME_ORIGIN, "same-origin", false, false],
+[CROSS_ORIGIN, SAME_ORIGIN, "same-origin", false, false],
+[SAME_ORIGIN, SAME_SITE, "same-origin", false, false],
+[SAME_SITE, SAME_SITE, "same-origin", false, false],
+[CROSS_ORIGIN, SAME_SITE, "same-origin", false, false],
+[SAME_ORIGIN, CROSS_ORIGIN, "same-origin", false, false],
+[SAME_SITE, CROSS_ORIGIN, "same-origin", false, false],
+[CROSS_ORIGIN, CROSS_ORIGIN, "same-origin", false, false],
+].forEach( value => {
+    run_coop_test_iframe("same-origin", value[0], value[1], value[2], value[3], value[4]);
+});
+
+</script>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin.https.html.headers b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-to-same-origin.https.html.headers
similarity index 100%
rename from tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin.https.html.headers
rename to tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-to-same-origin.https.html.headers
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-to-unsafe-none.https.html
similarity index 60%
rename from tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin.https.html
rename to tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-to-unsafe-none.https.html
index 2b7decd39cf8..d6521bd9dc4c 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-to-unsafe-none.https.html
@@ -1,5 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
@@ -8,15 +9,6 @@
 <div id=log></div>
 <script>
 [
-[SAME_ORIGIN, SAME_ORIGIN, "same-origin", true, true],
-[SAME_SITE, SAME_ORIGIN, "same-origin", false, true],
-[CROSS_ORIGIN, SAME_ORIGIN, "same-origin", false, true],
-[SAME_ORIGIN, SAME_SITE, "same-origin", false, false],
-[SAME_SITE, SAME_SITE, "same-origin", false, true],
-[CROSS_ORIGIN, SAME_SITE, "same-origin", false, true],
-[SAME_ORIGIN, CROSS_ORIGIN, "same-origin", false, false],
-[SAME_SITE, CROSS_ORIGIN, "same-origin", false, true],
-[CROSS_ORIGIN, CROSS_ORIGIN, "same-origin", false, true],
 [SAME_ORIGIN, SAME_ORIGIN, "", false, false],
 [SAME_SITE, SAME_ORIGIN, "", false, true],
 [CROSS_ORIGIN, SAME_ORIGIN, "", false, true],
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-meta-http-equiv.https.html.headers b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-to-unsafe-none.https.html.headers
similarity index 100%
rename from tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-meta-http-equiv.https.html.headers
rename to tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-to-unsafe-none.https.html.headers
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-same-origin.https.html
similarity index 69%
rename from tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none.https.html
rename to tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-same-origin.https.html
index 78a18118504b..ad7c0e263ab4 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-same-origin.https.html
@@ -1,5 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
@@ -17,15 +18,6 @@
 [SAME_ORIGIN, CROSS_ORIGIN, "same-origin", false, false],
 [SAME_SITE, CROSS_ORIGIN, "same-origin", false, false],
 [CROSS_ORIGIN, CROSS_ORIGIN, "same-origin", false, false],
-[SAME_ORIGIN, SAME_ORIGIN, "", true, true],
-[SAME_SITE, SAME_ORIGIN, "", true, true],
-[CROSS_ORIGIN, SAME_ORIGIN, "", true, true],
-[SAME_ORIGIN, SAME_SITE, "", true, true],
-[SAME_SITE, SAME_SITE, "", true, true],
-[CROSS_ORIGIN, SAME_SITE, "", true, true],
-[SAME_ORIGIN, CROSS_ORIGIN, "", true, true],
-[SAME_SITE, CROSS_ORIGIN, "", true, true],
-[CROSS_ORIGIN, CROSS_ORIGIN, "", true, true],
 ].forEach( value => {
     run_coop_test_iframe("unsafe-none", value[0], value[1], value[2], value[3], value[4]);
 });
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none.https.html.headers b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-same-origin.https.html.headers
similarity index 100%
rename from tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none.https.html.headers
rename to tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-same-origin.https.html.headers
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-unsafe-none.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-unsafe-none.https.html
new file mode 100644
index 000000000000..8113189cc86c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-unsafe-none.https.html
@@ -0,0 +1,25 @@
+<!doctype html>
+<meta charset=utf-8>
+<meta name=timeout content=long>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="resources/common.js"></script>
+
+<div id=log></div>
+<script>
+[
+[SAME_ORIGIN, SAME_ORIGIN, "", true, true],
+[SAME_SITE, SAME_ORIGIN, "", true, true],
+[CROSS_ORIGIN, SAME_ORIGIN, "", true, true],
+[SAME_ORIGIN, SAME_SITE, "", true, true],
+[SAME_SITE, SAME_SITE, "", true, true],
+[CROSS_ORIGIN, SAME_SITE, "", true, true],
+[SAME_ORIGIN, CROSS_ORIGIN, "", true, true],
+[SAME_SITE, CROSS_ORIGIN, "", true, true],
+[CROSS_ORIGIN, CROSS_ORIGIN, "", true, true],
+].forEach( value => {
+    run_coop_test_iframe("unsafe-none", value[0], value[1], value[2], value[3], value[4]);
+});
+
+</script>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-unsafe-none.https.html.headers b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-unsafe-none.https.html.headers
new file mode 100644
index 000000000000..073ce7adfbd8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-unsafe-none.https.html.headers
@@ -0,0 +1 @@
+Cross-Origin-Opener-Policy: unsafe-none
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/no-https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/no-https.html
index f4e926b2eb28..db15d5c676ef 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/no-https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/no-https.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<meta name="timeout" content="long">
+<meta name=timeout content=long>
 <title>Cross-Origin-Opener-Policy requires secure contexts</title>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-redirect-cache.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-redirect-cache.https.html
index 0524878a03a8..d68c80664bc5 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-redirect-cache.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-redirect-cache.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta name="timeout" content="long">
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
@@ -15,6 +15,7 @@
     const payload = event.data;
     assert_equals(payload.name, hasOpener ? channelName : "");
     assert_equals(payload.opener, hasOpener);
+    assert_equals(w.closed, !hasOpener);
     bc.close()
 
     // test the same url for cache
@@ -23,9 +24,7 @@
 
   const w = window.open(url, channelName);
 
-  // w will be closed by its postback iframe. When out of process,
-  // window.close() does not work.
-  t.add_cleanup(() => w.close());
+  // The popup is closed by url_test.
 }
 
 // Redirect from hostA to hostB with same coop and coep.
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-cross-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-cross-origin.https.html
index cea3788ba83d..74ded50d6677 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-cross-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-cross-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-origin.https.html
index a50231f82287..b67db7e70666 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-site.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-site.https.html
index 53b4263a70fd..af7836f77ee8 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-site.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-allow-popups-with-same-site.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-cross-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-cross-origin.https.html
index 9f7d27b3c8dc..f72f8a59be20 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-cross-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-cross-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-same-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-same-origin.https.html
index c84219a80f5c..5798851f6865 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-same-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-same-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-same-site.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-same-site.https.html
index b875cc2e0e4a..1af0f7ca3ac3 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-same-site.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-same-origin-with-same-site.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-cross-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-cross-origin.https.html
index 5cbf5b4c20c9..6b6397c48691 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-cross-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-cross-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-same-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-same-origin.https.html
index f8a4ebe71288..66d720f7e92a 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-same-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-same-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-same-site.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-same-site.https.html
index e38acf4fcb1e..58ea328f0cff 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-same-site.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unsafe-none-with-same-site.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-cross-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-cross-origin.https.html
index d89398cd653d..6b5bf18bf434 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-cross-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-cross-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-same-origin.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-same-origin.https.html
index cb6fc02ac171..6000ec600f8b 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-same-origin.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-same-origin.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-same-site.https.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-same-site.https.html
index 6e0edfa04233..2f9d6f15e23d 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-same-site.https.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/popup-unspecified-with-same-site.https.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
-<meta content=timeout value=long>
+<meta name=timeout content=long>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script src="/common/get-host-info.sub.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/common.js b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/common.js
index 59ba33d65b04..760db60365fb 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/common.js
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/common.js
@@ -12,13 +12,17 @@ function url_test(t, url, channelName, hasOpener, openerDOMAccess) {
     if (openerDOMAccess !== undefined) {
       assert_equals(payload.openerDOMAccess, openerDOMAccess, 'openerDOMAccess');
     }
+    assert_equals(w.closed, !hasOpener, 'Openee browsing context closed');
   });
 
   const w = window.open(url, channelName);
 
-  // w will be closed by its postback iframe. When out of process,
-  // window.close() does not work.
-  t.add_cleanup(() => w.close());
+  // Close the popup once the test is complete.
+  // The browsing context might be closed hence use the broadcast channel
+  // to trigger the closure.
+  t.add_cleanup(() => {
+    bc.postMessage("close");
+  });
 }
 
 function coop_coep_test(t, host, coop, coep, channelName, hasOpener, openerDOMAccess) {
@@ -43,7 +47,14 @@ function run_coop_test_iframe (documentTitle, iframe_origin, popup_origin, popup
   const name = iframe_origin.name + "_iframe_opening_" + popup_origin.name + "_popup_with_coop_" + popup_coop;
   async_test(t => {
       const frame = document.createElement("iframe");
-      t.add_cleanup(() => { frame.remove(); });
+
+      // Close the popup and remove the frame once the test is
+      // complete. The browsing context might be closed hence use the
+      // broadcast channel to trigger the closure.
+      t.add_cleanup(() => {
+        frame.remove();
+        bc.postMessage("close");
+      });
 
       const origin = CROSS_ORIGIN.origin;
       const path = new URL("resources/iframe-popup.sub.html", window.location).pathname;
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/coop-coep.py b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/coop-coep.py
index e6f655ab7281..0271d7834af9 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/coop-coep.py
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/coop-coep.py
@@ -50,6 +50,13 @@ def main(request, response):
       openerDOMAccessAllowed = !!self.opener.document.URL;
     } catch(ex) {
     }
+    // Handle the response from the frame, closing the popup once the
+    // test completes.
+    addEventListener("message", event => {
+      if (event.data == "close") {
+        close();
+      }
+    });
     const iframe = document.querySelector("iframe");
     iframe.onload = () => {
       const payload = { name: self.name, opener: !!self.opener, openerDOMAccess: openerDOMAccessAllowed };
diff --git a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/postback.html b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/postback.html
index cf3c93bbe1d3..5955e2d7593a 100644
--- a/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/postback.html
+++ b/tests/wpt/web-platform-tests/html/cross-origin-opener-policy/resources/postback.html
@@ -3,8 +3,17 @@
 <script>
 const channelName = new URL(location).searchParams.get("channel");
 const bc = new BroadcastChannel(channelName);
+
+// Handle the close message from the test-cleanup, forwarding it to the
+// top level document, as this iframe and the opening document might not
+// be able to close the popup.
+bc.onmessage = event => {
+  if (event.data == "close") {
+    top.postMessage("close", "*");
+  }
+};
+
 window.addEventListener("message", event => {
   bc.postMessage(event.data);
-  window.parent.close();
 });
 </script>
diff --git a/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/the-fieldset-and-legend-elements/fieldset-crash.html b/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/the-fieldset-and-legend-elements/fieldset-crash.html
new file mode 100644
index 000000000000..111dcbe5338a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/rendering/non-replaced-elements/the-fieldset-and-legend-elements/fieldset-crash.html
@@ -0,0 +1,9 @@
+<!DOCTYPE html>
+<link rel="help" href="https://crbug.com/1039241">
+<div style="width: min-content;">
+  <div style="writing-mode:vertical-lr;">
+    <fieldset>
+      <div style="width:10%;"></div>
+    </fieldset>
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/html/rendering/replaced-elements/embedded-content/object-fallback-text-decoration-ref.html b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/embedded-content/object-fallback-text-decoration-ref.html
new file mode 100644
index 000000000000..9481e80ac81b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/embedded-content/object-fallback-text-decoration-ref.html
@@ -0,0 +1,3 @@
+<!doctype html>
+<title>Test reference</title>
+<span style="text-decoration:underline">This text should be underlined.</span>
diff --git a/tests/wpt/web-platform-tests/html/rendering/replaced-elements/embedded-content/object-fallback-text-decoration.html b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/embedded-content/object-fallback-text-decoration.html
new file mode 100644
index 000000000000..89657ef8a2dd
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/embedded-content/object-fallback-text-decoration.html
@@ -0,0 +1,9 @@
+<!doctype html>
+<title>Rendering of object element fallback with text-decoration</title>
+<link rel="match" href="object-fallback-text-decoration-ref.html">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#embedded-content-rendering-rules">
+<meta name="assert" content="Checks that text-decoration applies to rendered object fallback.">
+<style>
+  object { text-decoration: underline; }
+</style>
+<object>This text should be underlined.</object>
diff --git a/tests/wpt/web-platform-tests/html/rendering/the-details-element/summary-text-decoration-ref.html b/tests/wpt/web-platform-tests/html/rendering/the-details-element/summary-text-decoration-ref.html
new file mode 100644
index 000000000000..8b6105fd2ec3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/rendering/the-details-element/summary-text-decoration-ref.html
@@ -0,0 +1,5 @@
+<!doctype html>
+<title>Test reference</title>
+<details>
+  <summary><span style="text-decoration:underline">This text should be underlined.</span></summary>
+</details>
diff --git a/tests/wpt/web-platform-tests/html/rendering/the-details-element/summary-text-decoration.html b/tests/wpt/web-platform-tests/html/rendering/the-details-element/summary-text-decoration.html
new file mode 100644
index 000000000000..80bbd44c46c3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/rendering/the-details-element/summary-text-decoration.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<title>Rendering of summary element with text-decoration</title>
+<link rel="match" href="summary-text-decoration-ref.html">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#the-details-and-summary-elements">
+<meta name="assert" content="Checks that text-decoration applies to rendered summary element.">
+<style>
+  summary { text-decoration: underline; }
+</style>
+<details>
+  <summary>This text should be underlined.</summary>
+</details>
diff --git a/tests/wpt/web-platform-tests/html/semantics/embedded-content/the-canvas-element/security.pattern.fillStyle.sub.html b/tests/wpt/web-platform-tests/html/semantics/embedded-content/the-canvas-element/security.pattern.fillStyle.sub.html
index 6695138c57b6..70c5f194ff63 100644
--- a/tests/wpt/web-platform-tests/html/semantics/embedded-content/the-canvas-element/security.pattern.fillStyle.sub.html
+++ b/tests/wpt/web-platform-tests/html/semantics/embedded-content/the-canvas-element/security.pattern.fillStyle.sub.html
@@ -3,6 +3,7 @@
 <title>Canvas test: security.pattern.canvas.fillStyle.cross</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
 <script src="/common/media.js"></script>
 <script src="/2dcontext/resources/canvas-tests.js"></script>
 
@@ -11,8 +12,8 @@
 
 <script>
 
-forEachCanvasSource("http://{{domains[www1]}}:{{ports[http][0]}}",
-                    "http://{{domains[]}}:{{ports[http][0]}}",
+forEachCanvasSource(get_host_info().HTTP_REMOTE_ORIGIN,
+                    get_host_info().HTTP_ORIGIN,
                     (name, factory) => {
   promise_test(_ => {
     return factory().then(source => {
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/legacy/fuzzy-ref-2.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/legacy/fuzzy-ref-2.html.ini
index 0bbb2bf0aa5f..cdfd9736c54b 100644
--- a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/legacy/fuzzy-ref-2.html.ini
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/legacy/fuzzy-ref-2.html.ini
@@ -1,2 +1,4 @@
 [fuzzy-ref-2.html]
- fuzzy: maxDifference=255;100-100
+  fuzzy:
+    if os == "mac" and product == "chrome": maxDifference=254-255;100-100
+    maxDifference=255;100-100
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/legacy/reftest_fuzzy_chain_ini.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/legacy/reftest_fuzzy_chain_ini.html.ini
index 69dc018f3899..d3776e243e46 100644
--- a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/legacy/reftest_fuzzy_chain_ini.html.ini
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/legacy/reftest_fuzzy_chain_ini.html.ini
@@ -1,2 +1,4 @@
 [reftest_fuzzy_chain_ini.html]
-  fuzzy: maxDifference=255;100-100
+  fuzzy:
+    if os == "mac" and product == "chrome": maxDifference=254-255;100-100
+    maxDifference=255;100-100
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_1.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_1.html.ini
new file mode 100644
index 000000000000..44f185357bc5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_1.html.ini
@@ -0,0 +1,3 @@
+[reftest_fuzzy_1.html]
+  fuzzy:
+    if os == "mac" and product == "chrome": fuzzy-ref-1.html:254-255;100
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_full.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_full.html.ini
index 0ebde2f4a62f..d682550d53ea 100644
--- a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_full.html.ini
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_full.html.ini
@@ -1,3 +1,6 @@
 [reftest_fuzzy_ini_full.html]
-  fuzzy: [maxDifference=1;100-100,
-          reftest_fuzzy_ini_full.html==fuzzy-ref-1.html:255;100]
+  fuzzy:
+    if os == "mac" and product == "chrome": [maxDifference=1;100-100,
+        reftest_fuzzy_ini_full.html==fuzzy-ref-1.html:254-255;100]
+    if 1 == 1: [maxDifference=1;100-100,  # 'if 1 == 1:' is a workaround for a parser bug
+        reftest_fuzzy_ini_full.html==fuzzy-ref-1.html:255;100]
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_ref_only.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_ref_only.html.ini
index 70c0446b5dc9..4437fceff899 100644
--- a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_ref_only.html.ini
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_ref_only.html.ini
@@ -1,4 +1,8 @@
 [reftest_fuzzy_ini_ref_only.html]
-  fuzzy: [maxDifference=1;100-100,
-          fuzzy-ref-1.html:maxDifference=255;100-100,
-          reftest_fuzzy==fuzzy-ref-2.html:maxDifference=1;100-100]
+  fuzzy:
+    if os == "mac" and product == "chrome": [maxDifference=1;100-100,
+        fuzzy-ref-1.html:maxDifference=254-255;100-100,
+        reftest_fuzzy==fuzzy-ref-2.html:maxDifference=1;100-100]
+    if 1 == 1: [maxDifference=1;100-100,  # 1 == 1 is a workaround for a parser bug.
+        fuzzy-ref-1.html:maxDifference=255;100-100,
+        reftest_fuzzy==fuzzy-ref-2.html:maxDifference=1;100-100]
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_short.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_short.html.ini
index 1859d2568004..27e3290e6fbc 100644
--- a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_short.html.ini
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/reftest/reftest_fuzzy_ini_short.html.ini
@@ -1,2 +1,4 @@
 [reftest_fuzzy_ini_short.html]
-  fuzzy: maxDifference=255;100-100
+  fuzzy:
+    if os == "mac" and product == "chrome": maxDifference=254-255;100-100
+    maxDifference=255;100-100
diff --git a/tests/wpt/web-platform-tests/largest-contentful-paint/multiple-redirects-TAO.html b/tests/wpt/web-platform-tests/largest-contentful-paint/multiple-redirects-TAO.html
new file mode 100644
index 000000000000..ec8ddc3ec61c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/largest-contentful-paint/multiple-redirects-TAO.html
@@ -0,0 +1,62 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+<meta charset="utf-8" />
+<title>This test validates some Timing-Allow-Origin header usage in multiple redirects.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/largest-contentful-paint-helpers.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+</head>
+<img id='image'></img>
+<body>
+<script>
+async_test(t => {
+    assert_precondition(window.LargestContentfulPaint, "LargestContentfulPaint is not implemented");
+    let destUrl = get_host_info().HTTP_REMOTE_ORIGIN
+        + '/element-timing/resources/multiple-redirects.py?';
+    destUrl += 'redirect_count=2';
+    // The final resource has '*' in TAO header, so will not affect the result.
+    destUrl += '&final_resource=/element-timing/resources/circle-tao.svg';
+    destUrl += '&origin1=' + get_host_info().UNAUTHENTICATED_ORIGIN;
+    destUrl += '&origin2=' + get_host_info().HTTP_REMOTE_ORIGIN;
+    const taoCombinations = [
+        {tao1: location.origin, tao2: location.origin, passes: false},
+        {tao1: location.origin, tao2: get_host_info().HTTP_REMOTE_ORIGIN, passes: false},
+        {tao1: location.origin, tao2: 'null', passes: true},
+        {tao1: location.origin, tao2: '*', passes: true},
+        {tao1: location.origin, tao2: location.origin, passes: false},
+        {tao1: 'null', tao2: '*', passes: false},
+        {tao1: '*', tao2: 'null', passes: true},
+    ];
+    function getURL(item) {
+        return destUrl + '&tao1=' + item.tao1 + '&tao2=' + item.tao2;
+    }
+    function setImage(index) {
+        const image = document.getElementById('image');
+        const item = taoCombinations[index];
+        image.src = getURL(item);
+    }
+    let observedCount = 0;
+    let beforeLoad = performance.now();
+    new PerformanceObserver(t.step_func(entries => {
+        assert_equals(entries.getEntries().length, 1, 'There should be a single entry.');
+        const e = entries.getEntries()[0];
+        const item = taoCombinations[observedCount];
+        const url = getURL(item);
+        const options = item.passes ? [] : ['renderTimeIs0'];
+        checkImage(e, url, 'image', 200*200, beforeLoad, options);
+        observedCount++;
+        if (observedCount === taoCombinations.length) {
+            t.done();
+        } else {
+            beforeLoad = performance.now();
+            setImage(observedCount);
+        }
+    })).observe({entryTypes: ['largest-contentful-paint']});
+    setImage(0);
+}, 'Cross-origin images with passing/failing TAO should/shouldn\'t have its renderTime set.');
+</script>
+</body>
+</html>
+
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/inferred-mrow-baseline.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/inferred-mrow-baseline.html
index 1541b2d6ce17..c92cbba922f0 100644
--- a/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/inferred-mrow-baseline.html
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/inferred-mrow-baseline.html
@@ -20,7 +20,7 @@
   window.addEventListener("load", runTests);
   function runTests()
   {
-      ["Mrow", "Sqrt", "Style", "Error", "Phantom", "Math", "Menclose", "Mpadded"].forEach((tag) => {
+      ["Mrow", "Sqrt", "Style", "Error", "Phantom", "Math", "Menclose", "Mpadded", "Unknown"].forEach((tag) => {
           var x = document.getElementById("above" + tag).getBoundingClientRect();
           var y = document.getElementById("below" + tag).getBoundingClientRect();
           test(function() {
@@ -43,8 +43,10 @@
     <math><mspace id="aboveMath" width="10px" height="30px" style="background: purple"></mspace><mspace id="belowMath" width="10px" depth="30px" style="background: blue"></mspace></math>
     <math><menclose notation="box"><mspace id="aboveMenclose" width="10px" height="30px" style="background: purple"
 ></mspace><mspace id="belowMenclose" width="10px" depth="30px" style="background: blue"></mspace></menclose></math>
-    <math><mpadded notation="box"><mspace id="aboveMpadded" width="10px" height="30px" style="background: purple"
+    <math><mpadded lspace="10px"><mspace id="aboveMpadded" width="10px" height="30px" style="background: purple"
 ></mspace><mspace id="belowMpadded" width="10px" depth="30px" style="background: blue"></mspace></mpadded></math>
+    <math><unknown><mspace id="aboveUnknown" width="10px" height="30px" style="background: purple"
+></mspace><mspace id="belowUnknown" width="10px" depth="30px" style="background: blue"></mspace></unknown></math>
   </p>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/inferred-mrow-stretchy.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/inferred-mrow-stretchy.html
index b6a51762dfda..4b89dd6fa5f0 100644
--- a/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/inferred-mrow-stretchy.html
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/inferred-mrow-stretchy.html
@@ -31,7 +31,7 @@
   window.addEventListener("load", () => { document.fonts.ready.then(runTests); });
   function runTests()
   {
-      ["Mrow", "Sqrt", "Style", "Error", "Phantom", "Math", "Menclose", "Mpadded"].forEach((tag) => {
+      ["Mrow", "Sqrt", "Style", "Error", "Phantom", "Math", "Menclose", "Mpadded", "Unknown"].forEach((tag) => {
           var mo = document.getElementById("mo" + tag);
           test(function() {
               assert_true(MathMLFeatureDetection.has_mspace());
@@ -52,7 +52,8 @@
     <math><mphantom><mo style="visibilty: visible;" id="moPhantom">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></mphantom></math>
     <math><mo id="moMath">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></math>
     <math><menclose notation="box"><mo id="moMenclose">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></menclose></math>
-    <math><mpadded notation="box"><mo id="moMpadded">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></mpadded></math>
+    <math><mpadded lspace="10px"><mo id="moMpadded">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></mpadded></math>
+    <math><unknown><mo id="moUnknown">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></unknown></math>
   </p>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/spacing.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/spacing.html
new file mode 100644
index 000000000000..4bdfc9a001a3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/spacing.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>Spacing in mrows</title>
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#horizontally-group-sub-expressions-mrow">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#radicals-msqrt-mroot">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#style-change-mstyle">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#error-message-merror">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#making-sub-expressions-invisible-mphantom">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#the-top-level-math-element">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#enclose-expression-inside-notation-menclose">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#adjust-space-around-content-mpadded">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#operator-fence-separator-or-accent-mo">
+<meta name="assert" content="Spacing is added around operators inside mrow-like elements.">
+<script src="/mathml/support/feature-detection.js"></script>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script type="text/javascript">
+  setup({ explicit_done: true });
+  window.addEventListener("load", () => { document.fonts.ready.then(runTests); });
+  function runTests()
+  {
+      ["Mrow", "Sqrt", "Style", "Error", "Phantom", "Math", "Menclose", "Mpadded", "Unknown"].forEach((tag) => {
+          test(function() {
+              assert_true(MathMLFeatureDetection.has_operator_spacing());
+              var mrow = document.getElementById(tag);
+              var mn1 = mrow.firstElementChild.getBoundingClientRect();
+              var mn2 = mrow.lastElementChild.getBoundingClientRect();
+              assert_greater_than_equal(mn2.left - mn1.right, 50);
+          }, `operator spacing inside ${tag}`);
+      });
+      done();
+  }
+</script>
+</head>
+<body>
+  <div id="log"></div>
+  <p>
+    <math><mrow id="Mrow"><mn>1</mn><mo lspace="50px">|</mo><mn>2</mn></mrow></math>
+    <math><msqrt id="Sqrt"><mn>1</mn><mo lspace="50px">|</mo><mn>2</mn></msqrt></math>
+    <math><mstyle id="Style"><mn>1</mn><mo lspace="50px">|</mo><mn>2</mn></mstyle></math>
+    <math><merror id="Error"><mn>1</mn><mo lspace="50px"></mo><mn>2</mn></merror></math>
+    <math><mphantom id="Phantom"><mn>1</mn><mo lspace="50px">|</mo><mn>2</mn></mphantom></math>
+    <math id="Math"><mn>1</mn><mo lspace="50px">|</mo><mn>2</mn></math>
+    <math><menclose id="Menclose" notation="box"><mn>1</mn><mo lspace="50px">|</mo><mn>2</mn></menclose></math>
+    <math><mpadded id="Mpadded" lspace="10px"><mn>1</mn><mo lspace="50px">|</mo><mn>2</mn></mpadded></math>
+    <math><unknown id="Unknown"><mn>1</mn><mo lspace="50px">|</mo><mn>2</mn></unknown></math>
+  </p>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/support/feature-detection.js b/tests/wpt/web-platform-tests/mathml/support/feature-detection.js
index 1952d3b06c12..7ad4d953d082 100644
--- a/tests/wpt/web-platform-tests/mathml/support/feature-detection.js
+++ b/tests/wpt/web-platform-tests/mathml/support/feature-detection.js
@@ -24,35 +24,11 @@ var MathMLFeatureDetection = {
     },
 
     "has_menclose": function() {
-        if (!this.hasOwnProperty("_has_menclose")) {
-            document.body.insertAdjacentHTML("beforeend", "<math>\
-<mrow style='font-size: 20px !important'>\
-  <mrow>\
-    <mrow>\
-      <mrow>\
-        <mtext>A</mtext>\
-      </mrow>\
-    </mrow>\
-  </mrow>\
-</mrow>\
-<menclose notation='box' style='font-size: 20px !important'>\
-  <menclose notation='box'>\
-    <menclose notation='box'>\
-      <menclose notation='box'>\
-        <mtext>A</mtext>\
-      </menclose>\
-    </menclose>\
-  </menclose>\
-</menclose>\
-</math>");
-            var math = document.body.lastElementChild;
-            // The boxes will make menclose wider than mrow, if the former is supported.
-            this._has_menclose =
-                math.lastElementChild.getBoundingClientRect().width -
-                math.firstElementChild.getBoundingClientRect().width > 5;
-            document.body.removeChild(math);
-        }
-        return this._has_menclose;
+        // Just check whether <mrow> is supported because discussion on this is
+        // still open ( https://github.com/mathml-refresh/mathml/issues/105 )
+        // and it would have to behave at least like an mrow, even if it becomes
+        // an unknown element at the end.
+        return this.has_mrow();
     },
 
     "has_merror": function() {
diff --git a/tests/wpt/web-platform-tests/measure-memory/measure-memory.tentative.any.js b/tests/wpt/web-platform-tests/measure-memory/measure-memory.tentative.any.js
index c4f47a0b0844..cf42e2c9f466 100644
--- a/tests/wpt/web-platform-tests/measure-memory/measure-memory.tentative.any.js
+++ b/tests/wpt/web-platform-tests/measure-memory/measure-memory.tentative.any.js
@@ -1,25 +1,62 @@
+function checkMeasureMemoryResultEntry(entry, checkUrl) {
+  assert_own_property(entry, "jsMemoryEstimate");
+  assert_own_property(entry, "jsMemoryRange");
+  assert_equals(entry.jsMemoryRange.length, 2);
+  assert_greater_than_equal(entry.jsMemoryRange[1], entry.jsMemoryRange[0]);
+  assert_greater_than_equal(entry.jsMemoryEstimate, entry.jsMemoryRange[0]);
+  assert_greater_than_equal(entry.jsMemoryRange[1], entry.jsMemoryEstimate);
+  if (checkUrl) {
+    assert_own_property(entry, "url");
+  }
+}
+
 function checkMeasureMemoryResultSummary(result) {
     assert_own_property(result, "total");
-    assert_own_property(result.total, "jsMemoryEstimate");
-    assert_own_property(result.total, "jsMemoryRange");
-    assert_equals(result.total.jsMemoryRange.length, 2);
-    assert_greater_than_equal(
-        result.total.jsMemoryRange[1],
-        result.total.jsMemoryRange[0]);
-    assert_greater_than_equal(
-        result.total.jsMemoryEstimate,
-        result.total.jsMemoryRange[0]);
-    assert_greater_than_equal(
-        result.total.jsMemoryRange[1],
-        result.total.jsMemoryEstimate);
+    checkMeasureMemoryResultEntry(result.total, false);
+}
+
+function checkMeasureMemoryResultDetails(result) {
+    assert_own_property(result, "current");
+    checkMeasureMemoryResultEntry(result.current, true);
+    assert_own_property(result, "other");
+    for (other of result.other) {
+      checkMeasureMemoryResultEntry(other, true);
+    }
 }
 
 promise_test(async testCase => {
-  let result = await performance.measureMemory();
-  checkMeasureMemoryResultSummary(result);
+  try {
+    let result = await performance.measureMemory();
+    checkMeasureMemoryResultSummary(result);
+  } catch (error) {
+    if (!(error instanceof DOMException)) {
+      throw error;
+    }
+    assert_equals(error.name, "SecurityError");
+  }
 }, 'Well-formed result of performance.measureMemory with default arguments.');
 
 promise_test(async testcase => {
-  let result = await performance.measureMemory({detailed: false});
-  checkMeasureMemoryResultSummary(result);
-}, 'well-formed result of performance.measurememory with detailed=false.');
+  try {
+    let result = await performance.measureMemory({detailed: false});
+    checkMeasureMemoryResultSummary(result);
+  } catch (error) {
+    if (!(error instanceof DOMException)) {
+      throw error;
+    }
+    assert_equals(error.name, "SecurityError");
+  }
+}, 'well-formed result of performance.measureMemory with detailed=false.');
+
+promise_test(async testcase => {
+  try {
+    let result = await performance.measureMemory({detailed: true});
+    checkMeasureMemoryResultSummary(result);
+    checkMeasureMemoryResultDetails(result);
+  } catch (error) {
+    if (!(error instanceof DOMException)) {
+      throw error;
+    }
+    assert_equals(error.name, "SecurityError");
+  }
+}, 'well-formed result of performance.measureMemory with detailed=true.');
diff --git a/tests/wpt/web-platform-tests/native-file-system/native_FileSystemBaseHandle-postMessage-manual.https.tentative.html b/tests/wpt/web-platform-tests/native-file-system/native_FileSystemBaseHandle-postMessage-manual.https.tentative.html
index 266238c4acc2..e04be7df5fc7 100644
--- a/tests/wpt/web-platform-tests/native-file-system/native_FileSystemBaseHandle-postMessage-manual.https.tentative.html
+++ b/tests/wpt/web-platform-tests/native-file-system/native_FileSystemBaseHandle-postMessage-manual.https.tentative.html
@@ -1,5 +1,6 @@
 <!doctype html>
 <meta charset=utf-8>
+<meta name="timeout" content="long">
 
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
diff --git a/tests/wpt/web-platform-tests/native-file-system/sandboxed_FileSystemBaseHandle-postMessage.tentative.https.window.js b/tests/wpt/web-platform-tests/native-file-system/sandboxed_FileSystemBaseHandle-postMessage.tentative.https.window.js
index e010f6599e89..f7d5776e19e5 100644
--- a/tests/wpt/web-platform-tests/native-file-system/sandboxed_FileSystemBaseHandle-postMessage.tentative.https.window.js
+++ b/tests/wpt/web-platform-tests/native-file-system/sandboxed_FileSystemBaseHandle-postMessage.tentative.https.window.js
@@ -4,4 +4,5 @@
 // META: script=resources/messaging-helpers.js
 // META: script=resources/messaging-blob-helpers.js
 // META: script=resources/messaging-serialize-helpers.js
-// META: script=script-tests/FileSystemBaseHandle-postMessage.js
\ No newline at end of file
+// META: script=script-tests/FileSystemBaseHandle-postMessage.js
+// META: timeout=long
diff --git a/tests/wpt/web-platform-tests/portals/portals-focus.sub.html b/tests/wpt/web-platform-tests/portals/portals-focus.sub.html
index 1779590779af..97b7579eb636 100644
--- a/tests/wpt/web-platform-tests/portals/portals-focus.sub.html
+++ b/tests/wpt/web-platform-tests/portals/portals-focus.sub.html
@@ -1,4 +1,5 @@
 <!DOCTYPE html>
+<meta name="timeout" content="long">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="/resources/testdriver.js"></script>
diff --git a/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-data.html b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-data.html
index 368e77e1217d..1d39781e3058 100644
--- a/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-data.html
+++ b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-data.html
@@ -4,37 +4,21 @@
     <link rel="help" href="https://www.w3.org/TR/referrer-policy/#referrer-policy-delivery-nested">
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
-    <!-- Common global functions for referrer-policy tests. -->
-    <script src="/common/security-features/resources/common.sub.js"></script>
-    <script src="/referrer-policy/generic/referrer-policy-test-case.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script src="resources/make-html-script.js"></script>
     <meta name="referrer" content="origin">
   </head>
   <body onload="runTest()">
     <h1>Referrer Policy: iframes with data url uses no referrer</h1>
     <script>
       let test = async_test("iframes with data url uses no referrer");
-      window.addEventListener("message", test.step_func((msg) => {
+      window.addEventListener("message", test.step_func_done(msg => {
         assert_equals(msg.data.referrer, undefined);
-        test.done();
       }));
 
       function runTest() {
-        const BASE = location.protocol + "//www1." + location.hostname + ":" + location.port;
-        const TEST_DATA =
-            `data:text/html,<script src = "${BASE}/common/security-features/resources/common.sub.js"></` + `script>
-            <script src = "${BASE}/referrer-policy/generic/referrer-policy-test-case.js"></` + `script>
-            <script>
-              var urlPath = "/common/security-features/subresource/xhr.py";
-              var url = "${BASE}" + urlPath;
-              requestViaXhr(url).then((msg) => {
-                  parent.postMessage({referrer: msg.referrer}, "*")})
-                .catch((e) => {
-                    parent.postMessage({referrer: "FAILURE"}, "*");
-                  });
-            </` + "script>";
-
         let iframe = document.createElement("iframe");
-        iframe.src = TEST_DATA;
+        iframe.src = `data:text/html,${createScriptString(get_host_info().REMOTE_ORIGIN)}`;
         document.body.appendChild(iframe);
       }
     </script>
diff --git a/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-document-write.html b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-document-write.html
new file mode 100644
index 000000000000..cba71bb1d9f5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-document-write.html
@@ -0,0 +1,20 @@
+<!doctype html>
+<title>Referrer Policy: iframes with document.write()</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="resources/make-html-script.js"></script>
+<meta name="referrer" content="origin">
+<div id="log"></div>
+<script>
+async_test(t => {
+  window.addEventListener("message", t.step_func_done(msg => {
+    assert_equals(msg.data.referrer, self.origin + "/");
+  }));
+
+  const iframe = document.createElement("iframe");
+  document.body.appendChild(iframe);
+  iframe.contentDocument.write(createScriptString(get_host_info().REMOTE_ORIGIN));
+  iframe.contentDocument.close();
+});
+</script>
diff --git a/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-javascript-child.html b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-javascript-child.html
new file mode 100644
index 000000000000..e20da4f2cccf
--- /dev/null
+++ b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-javascript-child.html
@@ -0,0 +1,70 @@
+<!doctype html>
+<title>Referrer Policy: iframes with javascript url reuse referrer policy</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="resources/make-html-script.js"></script>
+<meta name="referrer" content="origin">
+<div id="log"></div>
+<script>
+[
+  {
+    srcDocPolicy: ``,
+    expected: self.origin + "/"
+  },
+  {
+    srcDocPolicy: `<meta name="referrer" content="no-referrer">`,
+    expected: undefined
+  }
+].forEach(({ srcDocPolicy, expected }) => {
+  promise_test(t => {
+    return new Promise(resolve => {
+      window.addEventListener("message", t.step_func(msg => {
+        assert_equals(msg.data.referrer, expected);
+        resolve();
+      }), { once:true });
+
+      const iframe = document.createElement("iframe");
+      t.add_cleanup(() => iframe.remove());
+      iframe.srcdoc = `${srcDocPolicy}<body><h1>Outer iframe</h1></body>`;
+      iframe.onload = t.step_func(() => {
+        iframe.onload = null;
+        const iframeChild =  iframe.contentDocument.createElement("iframe");
+        iframeChild.src = `javascript:'${createScriptString(get_host_info().REMOTE_ORIGIN)}'`;
+        iframe.contentDocument.body.appendChild(iframeChild);
+      });
+      document.body.appendChild(iframe);
+    });
+  });
+});
+
+[
+  {
+    srcDocPolicy: ``,
+    expected: self.origin + "/"
+  },
+  {
+    srcDocPolicy: `<meta name="referrer" content="no-referrer">`,
+    expected: undefined
+  }
+].forEach(({ srcDocPolicy, expected }) => {
+  promise_test(t => {
+    return new Promise(resolve => {
+      window.addEventListener("message", t.step_func(msg => {
+        assert_equals(msg.data.referrer, expected);
+        resolve();
+      }), { once:true });
+
+      const iframe = document.createElement("iframe");
+      t.add_cleanup(() => iframe.remove());
+      iframe.srcdoc = `${srcDocPolicy}<body><h1>Outer iframe</h1></body>`;
+      iframe.onload = t.step_func(() => {
+        iframe.onload = null;
+        iframe.contentWindow.location = `javascript:'${createScriptString(get_host_info().REMOTE_ORIGIN)}'`;
+      });
+      document.body.appendChild(iframe);
+    });
+  });
+});
+
+</script>
diff --git a/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-javascript.html b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-javascript.html
new file mode 100644
index 000000000000..77b6d759f5f4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-javascript.html
@@ -0,0 +1,19 @@
+<!doctype html>
+<title>Referrer Policy: iframes with javascript url reuse referrer policy</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="resources/make-html-script.js"></script>
+<meta name="referrer" content="origin">
+<div id="log"></div>
+<script>
+async_test(t => {
+  window.addEventListener("message", t.step_func_done(msg => {
+    assert_equals(msg.data.referrer, self.origin + "/");
+  }));
+
+  const iframe = document.createElement("iframe");
+  iframe.src = `javascript:'${createScriptString(get_host_info().REMOTE_ORIGIN)}'`;
+  document.body.appendChild(iframe);
+});
+</script>
diff --git a/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc-child.html b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc-child.html
index ecd5a41cc0be..cd4b4ae72481 100644
--- a/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc-child.html
+++ b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc-child.html
@@ -5,43 +5,27 @@
     <link rel="help" href="https://www.w3.org/TR/referrer-policy/#referrer-policy-delivery-nested">
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
-    <!-- Common global functions for referrer-policy tests. -->
-    <script src="/common/security-features/resources/common.sub.js"></script>
-    <script src="/referrer-policy/generic/referrer-policy-test-case.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script src="resources/make-html-script.js"></script>
     <meta name="referrer" content="origin">
   </head>
   <body onload="runTest()">
     <h1>Referrer Policy: iframes srcdoc child correctly inherit the ancestor's referrer policy</h1>
     <script>
       var test = async_test("iframes srcdoc child correctly inherit the ancestor's referrer policy");
-      window.addEventListener("message", test.step_func((msg) => {
-        assert_equals(msg.data.referrer, document.location.origin + "/");
-        test.done();
+      window.addEventListener("message", test.step_func_done(msg => {
+        assert_equals(msg.data.referrer, self.origin + "/");
       }));
 
-      const BASE = location.protocol + "//www1." + location.hostname + ":" + location.port;
-
       function runTest() {
         var iframe = document.createElement("iframe");
         iframe.srcdoc = `<body><h1>Outer iframe</h1></body>`;
-        iframe.onload = function() {
+        iframe.onload = test.step_func(() => {
           iframe.onload = null;
           var iframeChild =  iframe.contentDocument.createElement("iframe");
-          iframeChild.srcdoc =
-            `<script src = "${BASE}/common/security-features/resources/common.sub.js"></sc` + `ript>
-            <script src = "${BASE}/referrer-policy/generic/referrer-policy-test-case.js"></sc` + `ript>
-            <script>
-              var urlPath = "/common/security-features/subresource/xhr.py";
-              var url = "${BASE}" + urlPath;
-              requestViaXhr(url).then((msg) => {
-                  window.top.postMessage({referrer: msg.referrer}, "*")})
-                .catch((e) => {
-                    window.top.postMessage({referrer: "FAILURE"}, "*");
-                  });
-            </sc` + "ript>";
+          iframeChild.srcdoc = createScriptString(get_host_info().REMOTE_ORIGIN);
           iframe.contentDocument.body.appendChild(iframeChild);
-        };
-
+        });
         document.body.appendChild(iframe);
       }
     </script>
diff --git a/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc.html b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc.html
index 6639ebd98731..c4dffd3ed706 100644
--- a/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc.html
+++ b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/iframe-inheritance-srcdoc.html
@@ -5,33 +5,21 @@
     <link rel="help" href="https://www.w3.org/TR/referrer-policy/#referrer-policy-delivery-nested">
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
-    <!-- Common global functions for referrer-policy tests. -->
-    <script src="/common/security-features/resources/common.sub.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script src="resources/make-html-script.js"></script>
     <meta name="referrer" content="origin">
   </head>
   <body onload="runTest()">
     <h1>Referrer Policy: iframes srcdoc correctly inherit the ancestor's referrer policy</h1>
     <script>
       var test = async_test("iframes srcdoc correctly inherit the ancestor's referrer policy");
-      window.addEventListener("message", test.step_func((msg) => {
-        assert_equals(msg.data.referrer, document.location.origin + "/");
-        test.done();
+      window.addEventListener("message", test.step_func_done(msg => {
+        assert_equals(msg.data.referrer, self.origin + "/");
       }));
 
       function runTest() {
         var iframe = document.createElement("iframe");
-        iframe.srcdoc =
-            `<script src = "/common/security-features/resources/common.sub.js"></` + `script>
-            <script>
-              var urlPath = "/common/security-features/subresource/xhr.py";
-              var url = "${location.protocol}//www1.${location.hostname}:${location.port}" + urlPath;
-              requestViaXhr(url).then((msg) => {
-                  parent.postMessage({referrer: msg.referrer}, "*")})
-                .catch((e) => {
-                    parent.postMessage({referrer: "FAILURE"}, "*");
-                  });
-            </` + "script>";
-
+        iframe.srcdoc = createScriptString(get_host_info().REMOTE_ORIGIN);
         document.body.appendChild(iframe);
       }
     </script>
diff --git a/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/resources/make-html-script.js b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/resources/make-html-script.js
new file mode 100644
index 000000000000..e285c559c04d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/referrer-policy/generic/inheritance/resources/make-html-script.js
@@ -0,0 +1,10 @@
+function createScriptString(origin) {
+  return `<script src = "${origin}/common/security-features/resources/common.sub.js"><\/script>
+          <script>
+            requestViaXhr("${origin}/common/security-features/subresource/xhr.py").then(msg => {
+              top.postMessage({referrer: msg.referrer}, "*")
+            }).catch(e => {
+              top.postMessage({referrer: "FAILURE"}, "*");
+            });
+          <\/script>`;
+}
diff --git a/tests/wpt/web-platform-tests/resource-timing/resource_timing_buffer_full_eventually.html b/tests/wpt/web-platform-tests/resource-timing/resource_timing_buffer_full_eventually.html
index ce745237c065..140973156fbd 100644
--- a/tests/wpt/web-platform-tests/resource-timing/resource_timing_buffer_full_eventually.html
+++ b/tests/wpt/web-platform-tests/resource-timing/resource_timing_buffer_full_eventually.html
@@ -4,6 +4,7 @@
 <meta charset="utf-8" />
 <link rel="help" href="http://www.w3.org/TR/resource-timing/#performanceresourcetiming"/>
 <title>This test validates that resource timing implementations have a finite number of entries in their buffer.</title>
+<meta name="timeout" content="long">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 </head>
@@ -12,28 +13,24 @@
     const t = async_test("Finite resource timing entries buffer size");
     performance.onresourcetimingbufferfull = t.step_func_done(function() {
     });
-    window.onload = t.step_func(
-        function() {
-            // Scripts appended in JS to ensure setResourceTimingBufferSize is called before.
-            let counter = performance.getEntriesByType("resource").length;
-            function appendScripts() {
-                const documentFragment = document.createDocumentFragment();
-                // Add 100 elements at a time to avoid page reflow every time.
-                let numScriptsAccumulated = 0;
-                while (numScriptsAccumulated < 100) {
-                    const src = "resources/empty.js?" + counter;
-                    const script = document.createElement('script');
-                    script.type = 'text/javascript';
-                    script.src = src;
-                    documentFragment.appendChild(script);
-                    ++counter;
-                    ++numScriptsAccumulated;
-                }
-                document.body.appendChild(documentFragment);
-                t.step_timeout(appendScripts, 20);
-            }
-            appendScripts();
-        });
+    let counter = 0;
+    function appendScripts() {
+        const documentFragment = document.createDocumentFragment();
+        // Add 8 elements at a time to avoid page reflow every time.
+        let numScriptsAccumulated = 0;
+        while (numScriptsAccumulated < 8) {
+            const src = "resources/empty.js?" + counter;
+            const script = document.createElement('script');
+            script.type = 'text/javascript';
+            script.src = src;
+            documentFragment.appendChild(script);
+            ++counter;
+            ++numScriptsAccumulated;
+        }
+        document.body.appendChild(documentFragment);
+        t.step_timeout(appendScripts, 20);
+    }
+    appendScripts();
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-target.html b/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-target.html
index bc9ee9e6bc55..09d22ff6d1d6 100644
--- a/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-target.html
+++ b/tests/wpt/web-platform-tests/scroll-to-text-fragment/scroll-to-text-fragment-target.html
@@ -48,6 +48,14 @@
   let key = (new URL(document.location)).searchParams.get("key");
   stashResults(key, results);
 }
+
+// Ensure two animation frames on load to test the fallback to element anchor,
+// which gets queued for the next frame if the text fragment is not found.
+window.onload = function() {
+  window.requestAnimationFrame(function() {
+    window.requestAnimationFrame(checkScroll);
+  })
+}
 </script>
 <style>
   .scroll-section {
@@ -64,7 +72,7 @@
     display: none;
   }
 </style>
-<body onload="window.requestAnimationFrame(checkScroll)">
+<body>
   <div id="element" class="scroll-section">Element</div>
   <p id="text" class="scroll-section">This is a test page !$'()*+./:;=?@_~ &,- &#x30cd;&#x30b3;</p>
   <p id="more-text" class="scroll-section">More test page text</p>
diff --git a/tests/wpt/web-platform-tests/service-workers/service-worker/clients-matchall-client-types.https.html b/tests/wpt/web-platform-tests/service-workers/service-worker/clients-matchall-client-types.https.html
index a2a56816a650..54f182b6202c 100644
--- a/tests/wpt/web-platform-tests/service-workers/service-worker/clients-matchall-client-types.https.html
+++ b/tests/wpt/web-platform-tests/service-workers/service-worker/clients-matchall-client-types.https.html
@@ -4,121 +4,89 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="resources/test-helpers.sub.js"></script>
 <script>
-var scope = 'resources/clients-matchall-client-types';
-var iframe_url = scope + '-iframe.html';
-var shared_worker_url = scope + '-shared-worker.js';
-var dedicated_worker_url = scope + '-dedicated-worker.js';
+const scope = 'resources/clients-matchall-client-types';
+const iframe_url = scope + '-iframe.html';
+const shared_worker_url = scope + '-shared-worker.js';
+const dedicated_worker_url = scope + '-dedicated-worker.js';
 
 /* visibilityState, focused, url, type, frameType */
-var expected_only_window = [
+const expected_only_window = [
     ['visible', true, new URL(iframe_url, location).href, 'window', 'nested']
 ];
-var expected_only_shared_worker = [
+const expected_only_shared_worker = [
     [undefined, undefined, new URL(shared_worker_url, location).href, 'sharedworker', 'none']
 ];
-var expected_only_dedicated_worker = [
+const expected_only_dedicated_worker = [
     [undefined, undefined, new URL(dedicated_worker_url, location).href, 'worker', 'none']
 ];
 
 // These are explicitly sorted by URL in the service worker script.
-var expected_all_clients = [
+const expected_all_clients = [
     expected_only_dedicated_worker[0],
     expected_only_window[0],
     expected_only_shared_worker[0],
 ];
 
-function test_matchall(frame, expected, query_options) {
+async function test_matchall(frame, expected, query_options) {
   // Make sure the frame gets focus.
   frame.focus();
-  return new Promise(function(resolve, reject) {
-    var channel = new MessageChannel();
-    channel.port1.onmessage = function(e) { resolve(e.data); };
+  const data = await new Promise(resolve => {
+    const channel = new MessageChannel();
+    channel.port1.onmessage = e => resolve(e.data);
     frame.contentWindow.navigator.serviceWorker.controller.postMessage(
         {port:channel.port2, options:query_options},
         [channel.port2]);
-  }).then(function(data) {
-    if (typeof data === 'string') {
-      throw new Error(data);
-    }
+  });
 
-    assert_equals(data.length, expected.length, 'result count');
+  if (typeof data === 'string') {
+    throw new Error(data);
+  }
 
-    for (var i = 0; i < data.length; ++i) {
-      assert_array_equals(data[i], expected[i]);
-    }
-  });
+  assert_equals(data.length, expected.length, 'result count');
+
+  for (let i = 0; i < data.length; ++i) {
+    assert_array_equals(data[i], expected[i]);
+  }
 }
 
-promise_test(function(t) {
-    var frame;
-    return service_worker_unregister_and_register(
-        t, 'resources/clients-matchall-worker.js', scope)
-      .then(function(registration) {
-          t.add_cleanup(function() {
-              return service_worker_unregister(t, scope);
-            });
+promise_test(async t => {
+  const registration = await service_worker_unregister_and_register(
+      t, 'resources/clients-matchall-worker.js', scope);
+  t.add_cleanup(_ => registration.unregister());
+  await wait_for_state(t, registration.installing, 'activated');
+  const frame = await with_iframe(iframe_url);
+  t.add_cleanup(_ => frame.remove());
+  await test_matchall(frame, expected_only_window, {});
+  await test_matchall(frame, expected_only_window, {type:'window'});
+}, 'Verify matchAll() with window client type');
 
-          return wait_for_state(t, registration.installing, 'activated');
-        })
-      .then(function() { return with_iframe(iframe_url); })
-      .then(function(f) {
-          frame = f;
-          return test_matchall(frame, expected_only_window, {});
-        })
-      .then(function() {
-          return test_matchall(frame, expected_only_window, {type:'window'});
-        })
-      .then(function() {
-          frame.remove();
-        });
-  }, 'Verify matchAll() with window client type');
+promise_test(async t => {
+  const registration = await service_worker_unregister_and_register(
+      t, 'resources/clients-matchall-worker.js', scope);
+  t.add_cleanup(_ => registration.unregister());
+  await wait_for_state(t, registration.installing, 'activated');
+  const frame = await with_iframe(iframe_url);
+  t.add_cleanup(_ => frame.remove());
 
-promise_test(function(t) {
-    var frame;
-    return service_worker_unregister_and_register(
-        t, 'resources/clients-matchall-worker.js', scope)
-      .then(function(registration) {
-          t.add_cleanup(function() {
-              return service_worker_unregister(t, scope);
-            });
+  // Set up worker clients.
+  const shared_worker = await new Promise((resolve, reject) => {
+    const w = new SharedWorker(shared_worker_url);
+    w.onerror = e => reject(e.message);
+    w.port.onmessage = _ => resolve(w);
+  });
+  const dedicated_worker = await new Promise((resolve, reject) => {
+    const w = new Worker(dedicated_worker_url);
+    w.onerror = e => reject(e.message);
+    w.onmessage = _ => resolve(w);
+    w.postMessage('Start');
+  });
 
-          return wait_for_state(t, registration.installing, 'activated');
-        })
-      .then(function() { return with_iframe(iframe_url); })
-      .then(function(f) {
-          frame = f;
-          return new Promise(function(resolve, reject) {
-              var w = new SharedWorker(shared_worker_url);
-              w.port.onmessage = resolve;
-            });
-        })
-      .then(function() {
-          return new Promise(function(resolve, reject) {
-              var w = new Worker(dedicated_worker_url);
-              w.onmessage = resolve;
-              w.postMessage('Start');
-            });
-        })
-      .then(function() {
-          return test_matchall(frame, expected_only_window, {});
-        })
-      .then(function() {
-          return test_matchall(frame, expected_only_window, {type:'window'});
-        })
-      .then(function() {
-          return test_matchall(frame, expected_only_shared_worker,
-                               {type:'sharedworker'});
-        })
-      .then(function() {
-          return test_matchall(frame, expected_only_dedicated_worker,
-                               {type:'worker'});
-        })
-      .then(function() {
-          return test_matchall(frame, expected_all_clients, {type:'all'});
-        })
-      .then(function() {
-          frame.remove();
-        });
+  await test_matchall(frame, expected_only_window, {});
+  await test_matchall(frame, expected_only_window, {type:'window'});
+  await test_matchall(frame, expected_only_shared_worker,
+                      {type:'sharedworker'});
+  await test_matchall(frame, expected_only_dedicated_worker, {type:'worker'});
+  await test_matchall(frame, expected_all_clients, {type:'all'});
 }, 'Verify matchAll() with {window, sharedworker, worker} client types');
 
 </script>
diff --git a/tests/wpt/web-platform-tests/service-workers/service-worker/getregistrations.https.html b/tests/wpt/web-platform-tests/service-workers/service-worker/getregistrations.https.html
index 3e48d5fe3618..3a9b9a23317b 100644
--- a/tests/wpt/web-platform-tests/service-workers/service-worker/getregistrations.https.html
+++ b/tests/wpt/web-platform-tests/service-workers/service-worker/getregistrations.https.html
@@ -31,14 +31,19 @@
 promise_test(async t => {
   const scope1 = 'resources/scope/getregistrations/scope1';
   const scope2 = 'resources/scope/getregistrations/scope2';
+  const scope3 = 'resources/scope/getregistrations/scope12';
+
   const script = 'resources/empty-worker.js';
   t.add_cleanup(() => service_worker_unregister(t, scope1));
   t.add_cleanup(() => service_worker_unregister(t, scope2));
+  t.add_cleanup(() => service_worker_unregister(t, scope3));
 
   const registrations = [
       await service_worker_unregister_and_register(t, script, scope1),
-      await service_worker_unregister_and_register(t, script, scope2)
+      await service_worker_unregister_and_register(t, script, scope2),
+      await service_worker_unregister_and_register(t, script, scope3),
   ];
+
   const value = await navigator.serviceWorker.getRegistrations();
   assert_array_equals(value, registrations);
 }, 'Register multiple times then getRegistrations');
diff --git a/tests/wpt/web-platform-tests/speech-api/META.yml b/tests/wpt/web-platform-tests/speech-api/META.yml
index 9ce8830e78fc..88f1837f96f6 100644
--- a/tests/wpt/web-platform-tests/speech-api/META.yml
+++ b/tests/wpt/web-platform-tests/speech-api/META.yml
@@ -1,3 +1,5 @@
 spec: https://w3c.github.io/speech-api/
 suggested_reviewers:
+  - andrenatal
   - foolip
+  - marcoscaceres
diff --git a/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/foreign-object-scale-scroll-ref.html b/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/foreign-object-scale-scroll-ref.html
new file mode 100644
index 000000000000..a2217fed5d05
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/foreign-object-scale-scroll-ref.html
@@ -0,0 +1,8 @@
+<!doctype html>
+<svg width="400" height="400">
+  <foreignObject x="200" y="200" width="200" height="200">
+    <div style="width: 100px; height: 100px; transform: scale(2); transform-origin: 0 0; overflow: scroll">
+      <div style="width: 1000px; height: 1000px; background: blue"></div>
+    </div>
+  </foreignObject>
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/foreign-object-scale-scroll.html b/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/foreign-object-scale-scroll.html
new file mode 100644
index 000000000000..72ce40dc5c04
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/foreign-object-scale-scroll.html
@@ -0,0 +1,9 @@
+<!doctype html>
+<title>foreignObject with scale transform and overflow:scroll</title>
+<link rel="help" href="https://svgwg.org/svg2-draft/single-page.html#embedded-ForeignObjectElement"/>
+<link rel="match" href="foreign-object-scale-scroll-ref.html">
+<svg width="400" height="400">
+  <foreignObject x="100" y="100" transform="scale(2)" width="100" height="100" style="overflow: scroll">
+    <div style="width: 1000px; height: 1000px; background: blue"></div>
+  </foreignObject>
+</svg>
diff --git a/tests/wpt/web-platform-tests/tools/ci/azure/install_edge.yml b/tests/wpt/web-platform-tests/tools/ci/azure/install_edge.yml
index e4c425ab7a0f..297b6e60b29f 100644
--- a/tests/wpt/web-platform-tests/tools/ci/azure/install_edge.yml
+++ b/tests/wpt/web-platform-tests/tools/ci/azure/install_edge.yml
@@ -4,6 +4,26 @@ parameters:
 # Should match https://web-platform-tests.org/running-tests/chrome.html
 # Just replace chrome with edgechromium
 steps:
+- ${{ if eq(parameters.channel, 'stable') }}:
+  - powershell: |
+      $edgeInstallerName = 'MicrosoftEdgeSetup.exe'
+      # Link to Stable channel installer
+      Start-BitsTransfer -Source 'https://go.microsoft.com/fwlink/?linkid=2108834&Channel=Stable&language=en' -Destination MicrosoftEdgeSetup.exe
+      if (-not (Test-Path $edgeInstallerName)) {
+        Throw "Failed to download Edge installer to $edgeInstallerName."
+      }
+      cmd /c START /WAIT $edgeInstallerName /silent /install
+      $edgePath = "$env:systemdrive\Program Files (x86)\Microsoft\Edge\Application"
+      if (Test-Path $edgePath) {
+        Write-Host "##vso[task.prependpath]$edgePath"
+        Write-Host "Edge Stable installed at $edgePath."
+        (Get-Item -Path "$edgePath\msedge.exe").VersionInfo | Format-List
+      } else {
+        Copy-Item -Path "$env:temp\*edge*.log" -Destination $(Build.ArtifactStagingDirectory)  -Force
+        Throw "Failed to install Edge at $edgePath"
+      }
+    displayName: 'Install Edge Stable'
+
 - ${{ if eq(parameters.channel, 'canary') }}:
   - powershell: |
       $edgeInstallerName = 'MicrosoftEdgeSetup.exe'
diff --git a/tests/wpt/web-platform-tests/tools/wpt/browser.py b/tests/wpt/web-platform-tests/tools/wpt/browser.py
index f0c2eeb94b8c..13ce823d0cec 100644
--- a/tests/wpt/web-platform-tests/tools/wpt/browser.py
+++ b/tests/wpt/web-platform-tests/tools/wpt/browser.py
@@ -888,8 +888,10 @@ def find_binary(self, venv_path=None, channel=None):
             if not binary:
                 # Use paths from different Edge channels starting with Release\Beta\Dev\Canary
                 winpaths = [os.path.expanduser("~\\AppData\\Local\\Microsoft\\Edge\\Application"),
+                            os.path.expandvars("$SYSTEMDRIVE\\Program Files\\Microsoft\\Edge\\Application"),
                             os.path.expandvars("$SYSTEMDRIVE\\Program Files\\Microsoft\\Edge Beta\\Application"),
                             os.path.expandvars("$SYSTEMDRIVE\\Program Files\\Microsoft\\Edge Dev\\Application"),
+                            os.path.expandvars("$SYSTEMDRIVE\\Program Files (x86)\\Microsoft\\Edge\\Application"),
                             os.path.expandvars("$SYSTEMDRIVE\\Program Files (x86)\\Microsoft\\Edge Beta\\Application"),
                             os.path.expandvars("$SYSTEMDRIVE\\Program Files (x86)\\Microsoft\\Edge Dev\\Application"),
                             os.path.expanduser("~\\AppData\Local\\Microsoft\\Edge SxS\\Application")]
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py
index ceca81211e11..39d723a78866 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py
@@ -1,11 +1,12 @@
+from __future__ import absolute_import
 import json
 import os
 import socket
 import threading
 import time
 import traceback
-import urlparse
 import uuid
+from six.moves.urllib.parse import urljoin
 
 from .base import (CallbackHandler,
                    RefTestExecutor,
@@ -87,8 +88,8 @@ def setup(self):
     def load_runner(self, url_protocol):
         if self.runner_handle:
             self.webdriver.switch_to_window(self.runner_handle)
-        url = urlparse.urljoin(self.parent.executor.server_url(url_protocol),
-                               "/testharness_runner.html")
+        url = urljoin(self.parent.executor.server_url(url_protocol),
+                      "/testharness_runner.html")
         self.logger.debug("Loading %s" % url)
         self.webdriver.get(url)
         self.runner_handle = self.webdriver.current_window_handle
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
index 0b329210fc54..d09eb1e14517 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
@@ -1,11 +1,12 @@
+from __future__ import absolute_import
 import json
 import os
 import socket
 import threading
 import time
 import traceback
-import urlparse
 import uuid
+from six.moves.urllib.parse import urljoin
 
 from .base import (CallbackHandler,
                    CrashtestExecutor,
@@ -86,8 +87,8 @@ def setup(self):
     def load_runner(self, url_protocol):
         if self.runner_handle:
             self.webdriver.window_handle = self.runner_handle
-        url = urlparse.urljoin(self.parent.executor.server_url(url_protocol),
-                               "/testharness_runner.html")
+        url = urljoin(self.parent.executor.server_url(url_protocol),
+                      "/testharness_runner.html")
         self.logger.debug("Loading %s" % url)
 
         self.webdriver.url = url
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/wptcommandline.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/wptcommandline.py
index 91f1161b01b9..5b7278b99ff4 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/wptcommandline.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/wptcommandline.py
@@ -1,4 +1,4 @@
-from __future__ import print_function
+from __future__ import absolute_import, print_function
 import argparse
 import os
 import sys
@@ -16,9 +16,9 @@ def abs_path(path):
 
 
 def url_or_path(path):
-    import urlparse
+    from six.moves.urllib.parse import urlparse
 
-    parsed = urlparse.urlparse(path)
+    parsed = urlparse(path)
     if len(parsed.scheme) > 2:
         return path
     else:
diff --git a/tests/wpt/web-platform-tests/trusted-types/GlobalEventHandlers-onclick.tentative.html b/tests/wpt/web-platform-tests/trusted-types/GlobalEventHandlers-onclick.tentative.html
index 8c9c2f1a70bd..6cbf680fa26d 100644
--- a/tests/wpt/web-platform-tests/trusted-types/GlobalEventHandlers-onclick.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/GlobalEventHandlers-onclick.tentative.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="support/helper.sub.js"></script>
 
-<meta http-equiv="Content-Security-Policy" content="trusted-types *">
+<meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script'">
 <body>
 <div id="container"></div>
 <script>
diff --git a/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicyFactory-metadata.tentative.html b/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicyFactory-metadata.tentative.html
index da7d1b4f8770..67c734b5a428 100644
--- a/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicyFactory-metadata.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicyFactory-metadata.tentative.html
@@ -4,7 +4,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="support/helper.sub.js"></script>
 
-<meta http-equiv="Content-Security-Policy" content="trusted-types *">
+<meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 <body>
 <div id="target"></div>
 <script>
diff --git a/tests/wpt/web-platform-tests/trusted-types/WorkerGlobalScope-importScripts.https.html b/tests/wpt/web-platform-tests/trusted-types/WorkerGlobalScope-importScripts.https.html
index 9dbfd7b93c97..0aa965e16e08 100644
--- a/tests/wpt/web-platform-tests/trusted-types/WorkerGlobalScope-importScripts.https.html
+++ b/tests/wpt/web-platform-tests/trusted-types/WorkerGlobalScope-importScripts.https.html
@@ -1,7 +1,7 @@
 <!doctype html>
 <html>
 <head>
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
   <script src="/resources/testharness.js"></script>
   <script src="/resources/testharnessreport.js"></script>
 </head>
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-Node-multiple-arguments.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-Node-multiple-arguments.tentative.html
index 5552e1313728..879d34f96126 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-Node-multiple-arguments.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-Node-multiple-arguments.tentative.html
@@ -4,7 +4,7 @@
   <script src="/resources/testharness.js"></script>
   <script src="/resources/testharnessreport.js"></script>
   <script src="support/helper.sub.js"></script>
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 </head>
 <body>
 <div id="container"></div>
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-DOMParser-parseFromString.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-DOMParser-parseFromString.tentative.html
index 82e31200e6ba..12cef6af661a 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-DOMParser-parseFromString.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-DOMParser-parseFromString.tentative.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="support/helper.sub.js"></script>
 
-<meta http-equiv="Content-Security-Policy" content="trusted-types *">
+<meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 <body>
 <script>
   // Trusted HTML assignments do not throw.
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-DOMWindowTimers-setTimeout-setInterval.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-DOMWindowTimers-setTimeout-setInterval.tentative.html
index 468ed7b69751..6d723ba23b6b 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-DOMWindowTimers-setTimeout-setInterval.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-DOMWindowTimers-setTimeout-setInterval.tentative.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="support/helper.sub.js"></script>
 
-<meta http-equiv="Content-Security-Policy" content="trusted-types *">
+<meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 <body>
 <script>
   // setTimeout tests
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Document-write.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Document-write.tentative.html
index 4defb56c88ed..1049b46563d4 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Document-write.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Document-write.tentative.html
@@ -5,7 +5,7 @@
   <script src="/resources/testharnessreport.js"></script>
   <script src="support/helper.sub.js"></script>
 
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 </head>
 <body>
 <script>
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-insertAdjacentHTML.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-insertAdjacentHTML.tentative.html
index 37a73f08c20a..1e8c091d87e7 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-insertAdjacentHTML.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-insertAdjacentHTML.tentative.html
@@ -5,7 +5,7 @@
   <script src="/resources/testharnessreport.js"></script>
   <script src="support/helper.sub.js"></script>
 
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 </head>
 <body>
 <div id="container"></div>
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-outerHTML.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-outerHTML.tentative.html
index 8f314a26bf5d..17815e6a9e9b 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-outerHTML.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-outerHTML.tentative.html
@@ -5,7 +5,7 @@
   <script src="/resources/testharnessreport.js"></script>
   <script src="support/helper.sub.js"></script>
 
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 </head>
 <body>
 <div id="container"></div>
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html
index 2639e16ea084..47c4c3557f83 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html
@@ -5,7 +5,7 @@
   <script src="/resources/testharnessreport.js"></script>
   <script src="support/helper.sub.js"></script>
 
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 </head>
 <body>
 <script>
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttributeNS.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttributeNS.tentative.html
index 5754521b2bd7..cc8b05e8c837 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttributeNS.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttributeNS.tentative.html
@@ -5,7 +5,7 @@
   <script src="/resources/testharnessreport.js"></script>
   <script src="support/helper.sub.js"></script>
 
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 </head>
 <body>
 <script>
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-HTMLElement-generic.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-HTMLElement-generic.tentative.html
index 84ff83bc083a..b5745199f41c 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-HTMLElement-generic.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-HTMLElement-generic.tentative.html
@@ -5,7 +5,7 @@
   <script src="/resources/testharnessreport.js"></script>
   <script src="support/helper.sub.js"></script>
 
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 </head>
 <body>
 <script>
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Range-createContextualFragment.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Range-createContextualFragment.tentative.html
index 61553eb71dfc..a57376206de6 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Range-createContextualFragment.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Range-createContextualFragment.tentative.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="support/helper.sub.js"></script>
 
-<meta http-equiv="Content-Security-Policy" content="trusted-types *">
+<meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 <body>
 <script>
   // TrustedHTML assignments do not throw.
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-text-node-insertion-into-script-element.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-text-node-insertion-into-script-element.tentative.html
index 04b19f7e4211..1f5e8fda7aea 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-text-node-insertion-into-script-element.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-text-node-insertion-into-script-element.tentative.html
@@ -3,7 +3,7 @@
 <head>
   <script src="/resources/testharness.js"></script>
   <script src="/resources/testharnessreport.js"></script>
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 </head>
 <body>
 <div id="container"></div>
diff --git a/tests/wpt/web-platform-tests/trusted-types/default-policy-report-only.tentative.html.headers b/tests/wpt/web-platform-tests/trusted-types/default-policy-report-only.tentative.html.headers
index fa87952ae486..67b9ef7a3c5e 100644
--- a/tests/wpt/web-platform-tests/trusted-types/default-policy-report-only.tentative.html.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/default-policy-report-only.tentative.html.headers
@@ -1 +1 @@
-Content-Security-Policy-Report-Only: trusted-types *
+Content-Security-Policy-Report-Only: trusted-types *; require-trusted-types-for 'script';
diff --git a/tests/wpt/web-platform-tests/trusted-types/default-policy.tentative.html.headers b/tests/wpt/web-platform-tests/trusted-types/default-policy.tentative.html.headers
index 1bc33add09b4..6a40e40a586a 100644
--- a/tests/wpt/web-platform-tests/trusted-types/default-policy.tentative.html.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/default-policy.tentative.html.headers
@@ -1 +1 @@
-Content-Security-Policy: trusted-types *
+Content-Security-Policy: trusted-types *; require-trusted-types-for 'script';
diff --git a/tests/wpt/web-platform-tests/trusted-types/empty-default-policy-report-only.tentative.html.headers b/tests/wpt/web-platform-tests/trusted-types/empty-default-policy-report-only.tentative.html.headers
index fa87952ae486..67b9ef7a3c5e 100644
--- a/tests/wpt/web-platform-tests/trusted-types/empty-default-policy-report-only.tentative.html.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/empty-default-policy-report-only.tentative.html.headers
@@ -1 +1 @@
-Content-Security-Policy-Report-Only: trusted-types *
+Content-Security-Policy-Report-Only: trusted-types *; require-trusted-types-for 'script';
diff --git a/tests/wpt/web-platform-tests/trusted-types/empty-default-policy.tentative.html.headers b/tests/wpt/web-platform-tests/trusted-types/empty-default-policy.tentative.html.headers
index 1bc33add09b4..6a40e40a586a 100644
--- a/tests/wpt/web-platform-tests/trusted-types/empty-default-policy.tentative.html.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/empty-default-policy.tentative.html.headers
@@ -1 +1 @@
-Content-Security-Policy: trusted-types *
+Content-Security-Policy: trusted-types *; require-trusted-types-for 'script';
diff --git a/tests/wpt/web-platform-tests/trusted-types/eval-csp-tt-default-policy.tentative.html b/tests/wpt/web-platform-tests/trusted-types/eval-csp-tt-default-policy.tentative.html
index 8f1926d9cf26..eaa74eaf4cd0 100644
--- a/tests/wpt/web-platform-tests/trusted-types/eval-csp-tt-default-policy.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/eval-csp-tt-default-policy.tentative.html
@@ -16,7 +16,7 @@
   }, "eval of TrustedScript works.");
 
   test(t => {
-    assert_equals(eval('1+1'), 15);
+    assert_equals(eval('1+1'), 2);
   }, "eval of string works.");
 
   test(t => {
diff --git a/tests/wpt/web-platform-tests/trusted-types/eval-csp-tt-no-default-policy.tentative.html b/tests/wpt/web-platform-tests/trusted-types/eval-csp-tt-no-default-policy.tentative.html
index dc976d64abd6..0da09a8a5cd1 100644
--- a/tests/wpt/web-platform-tests/trusted-types/eval-csp-tt-no-default-policy.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/eval-csp-tt-no-default-policy.tentative.html
@@ -4,7 +4,7 @@
   <script nonce="abc" src="/resources/testharness.js"></script>
   <script nonce="abc" src="/resources/testharnessreport.js"></script>
   <script nonce="abc" src="support/helper.sub.js"></script>
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script';">
 </head>
 <body>
 <script>
diff --git a/tests/wpt/web-platform-tests/trusted-types/eval-with-permissive-csp.tentative.html b/tests/wpt/web-platform-tests/trusted-types/eval-with-permissive-csp.tentative.html
index 074fe79dc93f..32f12d8e129d 100644
--- a/tests/wpt/web-platform-tests/trusted-types/eval-with-permissive-csp.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/eval-with-permissive-csp.tentative.html
@@ -7,7 +7,7 @@
 
   <!-- Note: Trusted Types enforcement, and a CSP that allows all eval. -->
   <meta http-equiv="Content-Security-Policy"
-        content="script-src 'nonce-abc' 'unsafe-eval'; trusted-types *">
+        content="script-src 'nonce-abc' 'unsafe-eval'; trusted-types *; require-trusted-types-for 'script'">
 </head>
 <body>
 <script nonce="abc">
diff --git a/tests/wpt/web-platform-tests/trusted-types/no-require-trusted-types-for-report-only.tentative.html b/tests/wpt/web-platform-tests/trusted-types/no-require-trusted-types-for-report-only.tentative.html
new file mode 100644
index 000000000000..56f629522135
--- /dev/null
+++ b/tests/wpt/web-platform-tests/trusted-types/no-require-trusted-types-for-report-only.tentative.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<head>
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<script>
+  const testCases = [
+    ["script", "src"],
+    ["div", "innerHTML"],
+    ["script", "text"],
+  ];
+
+  testCases.forEach(c => {
+    const name = `${c[0]}.${c[1]} `;
+    test(t => {
+      s = document.createElement("script");
+      s.innerText = "1";
+      assert_equals("1", s.innerText.toString());
+    }, name + "without trusted types");
+  });
+
+  p = trustedTypes.createPolicy("policyA",
+      {createScript: s => s + 1, createHTML: s => s + 1, createScriptURL: s => s + 1});
+  testCases.forEach(c => {
+    const name = `${c[0]}.${c[1]} `;
+    test(t => {
+      s = document.createElement("script");
+      script = p.createScript("1");
+      s.innerText = script;
+      assert_equals(script.toString(), s.innerText.toString());
+    }, name + "with trusted types");
+  });
+
+  trustedTypes.createPolicy("default", {});
+  testCases.forEach(c => {
+    const name = `${c[0]}.${c[1]} `;
+    test(t => {
+      s = document.createElement("script");
+      s.innerText = "1";
+      assert_equals(s.innerText.toString(), "1");
+    }, name + "empty default");
+  });
+</script>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/trusted-types/no-require-trusted-types-for-report-only.tentative.html.headers b/tests/wpt/web-platform-tests/trusted-types/no-require-trusted-types-for-report-only.tentative.html.headers
new file mode 100644
index 000000000000..fa87952ae486
--- /dev/null
+++ b/tests/wpt/web-platform-tests/trusted-types/no-require-trusted-types-for-report-only.tentative.html.headers
@@ -0,0 +1 @@
+Content-Security-Policy-Report-Only: trusted-types *
diff --git a/tests/wpt/web-platform-tests/trusted-types/no-require-trusted-types-for.tentative.html b/tests/wpt/web-platform-tests/trusted-types/no-require-trusted-types-for.tentative.html
new file mode 100644
index 000000000000..4e11b03617be
--- /dev/null
+++ b/tests/wpt/web-platform-tests/trusted-types/no-require-trusted-types-for.tentative.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<head>
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+</head>
+<body>
+<script>
+  const testCases = [
+    ["script", "src"],
+    ["div", "innerHTML"],
+    ["script", "text"],
+  ];
+
+  testCases.forEach(c => {
+    const name = `${c[0]}.${c[1]} `;
+    test(t => {
+      s = document.createElement("script");
+      s.innerText = "1";
+      assert_equals("1", s.innerText.toString());
+    }, name + "without trusted types");
+  });
+
+  p = trustedTypes.createPolicy("policyA",
+      {createScript: s => s + 1, createHTML: s => s + 1, createScriptURL: s => s + 1});
+  testCases.forEach(c => {
+    const name = `${c[0]}.${c[1]} `;
+    test(t => {
+      s = document.createElement("script");
+      script = p.createScript("1");
+      s.innerText = script;
+      assert_equals(script.toString(), s.innerText.toString());
+    }, name + "with trusted types");
+  });
+
+  trustedTypes.createPolicy("default", {});
+  testCases.forEach(c => {
+    const name = `${c[0]}.${c[1]} `;
+    test(t => {
+      s = document.createElement("script");
+      s.innerText = "1";
+      assert_equals(s.innerText.toString(), "1");
+    }, name + "empty default");
+  });
+</script>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/trusted-types/require-trusted-types-for-report-only.tentative.html b/tests/wpt/web-platform-tests/trusted-types/require-trusted-types-for-report-only.tentative.html
new file mode 100644
index 000000000000..25b4440ef411
--- /dev/null
+++ b/tests/wpt/web-platform-tests/trusted-types/require-trusted-types-for-report-only.tentative.html
@@ -0,0 +1,71 @@
+<!DOCTYPE html>
+<head>
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<script>
+
+  function promise_violation(filter_arg) {
+    return _ => new Promise((resolve, reject) => {
+      function handler(e) {
+        let matches = (filter_arg instanceof Function)
+            ? filter_arg(e)
+            : (e.originalPolicy.includes(filter_arg));
+        if (matches) {
+          document.removeEventListener("securitypolicyviolation", handler);
+          e.stopPropagation();
+          resolve(e);
+        }
+      }
+
+      document.addEventListener("securitypolicyviolation", handler);
+    });
+  }
+
+  promise_test(t => {
+    let p = Promise.resolve()
+        .then(promise_violation("require-trusted-types-for 'script'"));
+
+    d = document.createElement("div");
+    d.innerHTML = "a";
+    assert_equals("a", d.innerHTML);
+    return p;
+  }, "Require trusted types for 'script' block create HTML.");
+
+  promise_test(t => {
+    let p = Promise.resolve()
+        .then(promise_violation("require-trusted-types-for 'script'"));
+
+    d = document.createElement("script");
+    d.innerText = "a";
+    assert_equals("a", d.innerText);
+    return p;
+  }, "Require trusted types for 'script' block create script.");
+
+  promise_test(t => {
+    let p = Promise.resolve()
+        .then(promise_violation("require-trusted-types-for 'script'"));
+
+    s = document.createElement("script");
+    s.src = "a";
+    assert_true(s.src.includes("/trusted-types/a"));
+    return p;
+  }, "Require trusted types for 'script' block create script URL.");
+
+  promise_test(t => {
+    return new Promise(resolve => {
+      p = trustedTypes.createPolicy("policyA", {createScript: s => s+1});
+      p1 = trustedTypes.createPolicy("policyA", {createHTML: _ => ""});
+      p2 = trustedTypes.createPolicy("default", {});
+      script = p.createScript("1");
+      assert_equals(script.toString(), "11");
+      s = document.createElement("script");
+      s.innerText = script;
+      assert_equals(script.toString(), s.innerText.toString());
+      s.innerText = "1";
+      assert_equals("1", s.innerText);
+      resolve();
+    });
+  }, "Set require trusted types for 'script' without CSP for trusted types don't block policy creation and using.");
+</script>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/trusted-types/require-trusted-types-for-report-only.tentative.html.headers b/tests/wpt/web-platform-tests/trusted-types/require-trusted-types-for-report-only.tentative.html.headers
new file mode 100644
index 000000000000..c6412f8d472f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/trusted-types/require-trusted-types-for-report-only.tentative.html.headers
@@ -0,0 +1 @@
+Content-Security-Policy-Report-Only: require-trusted-types-for 'script'
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/trusted-types/require-trusted-types-for.tentative.html b/tests/wpt/web-platform-tests/trusted-types/require-trusted-types-for.tentative.html
new file mode 100644
index 000000000000..95cfc4d106e5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/trusted-types/require-trusted-types-for.tentative.html
@@ -0,0 +1,78 @@
+<!DOCTYPE html>
+<head>
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'">
+</head>
+<body>
+<script>
+
+  function promise_violation(filter_arg) {
+    return _ => new Promise((resolve, reject) => {
+      function handler(e) {
+        let matches = (filter_arg instanceof Function)
+            ? filter_arg(e)
+            : (e.originalPolicy.includes(filter_arg));
+        if (matches) {
+          document.removeEventListener("securitypolicyviolation", handler);
+          e.stopPropagation();
+          resolve(e);
+        }
+      }
+
+      document.addEventListener("securitypolicyviolation", handler);
+    });
+  }
+
+  promise_test(t => {
+    let p = Promise.resolve()
+        .then(promise_violation("require-trusted-types-for 'script'"));
+    d = document.createElement("div");
+    assert_throws(new TypeError(),
+        _ => {
+          d.innerHTML = "a";
+        });
+    assert_equals("", d.innerHTML);
+    return p;
+  }, "Require trusted types for 'script' block create HTML.");
+
+  promise_test(t => {
+    let p = Promise.resolve()
+        .then(promise_violation("require-trusted-types-for 'script'"));
+    d = document.createElement("script");
+    assert_throws(new TypeError(),
+        _ => {
+          d.innerText = "a";
+        });
+    assert_equals("", d.innerText);
+    return p;
+  }, "Require trusted types for 'script' block create script.");
+
+  promise_test(t => {
+    let p = Promise.resolve()
+        .then(promise_violation("require-trusted-types-for 'script'"));
+    s = document.createElement("script");
+    assert_throws(new TypeError(),
+        _ => {
+          s.src = "a";
+        });
+    assert_equals("", s.src);
+    return p;
+  }, "Require trusted types for 'script' block create script URL.");
+
+  promise_test(t => {
+    return new Promise(resolve => {
+      p = trustedTypes.createPolicy("policyA", {createScript: s => s + 1});
+      p1 = trustedTypes.createPolicy("policyA", {createHTML: _ => ""});
+      p2 = trustedTypes.createPolicy("default", {createScript: s => s});
+      script = p.createScript("1");
+      assert_equals(script.toString(), "11");
+      s = document.createElement("script");
+      s.innerText = script;
+      assert_equals(script.toString(), s.innerText.toString());
+      s.innerText = "1";
+      assert_equals("1", s.innerText.toString());
+      resolve();
+    });
+  }, "Set require trusted types for 'script' without CSP for trusted types don't block policy creation and using.");
+</script>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/trusted-types/support/WorkerGlobalScope-importScripts.https.js.headers b/tests/wpt/web-platform-tests/trusted-types/support/WorkerGlobalScope-importScripts.https.js.headers
index 1bc33add09b4..6a40e40a586a 100644
--- a/tests/wpt/web-platform-tests/trusted-types/support/WorkerGlobalScope-importScripts.https.js.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/support/WorkerGlobalScope-importScripts.https.js.headers
@@ -1 +1 @@
-Content-Security-Policy: trusted-types *
+Content-Security-Policy: trusted-types *; require-trusted-types-for 'script';
diff --git a/tests/wpt/web-platform-tests/trusted-types/support/navigation-report-only-support.html.headers b/tests/wpt/web-platform-tests/trusted-types/support/navigation-report-only-support.html.headers
index fa87952ae486..67b9ef7a3c5e 100644
--- a/tests/wpt/web-platform-tests/trusted-types/support/navigation-report-only-support.html.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/support/navigation-report-only-support.html.headers
@@ -1 +1 @@
-Content-Security-Policy-Report-Only: trusted-types *
+Content-Security-Policy-Report-Only: trusted-types *; require-trusted-types-for 'script';
diff --git a/tests/wpt/web-platform-tests/trusted-types/support/navigation-support.html.headers b/tests/wpt/web-platform-tests/trusted-types/support/navigation-support.html.headers
index 1bc33add09b4..6a40e40a586a 100644
--- a/tests/wpt/web-platform-tests/trusted-types/support/navigation-support.html.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/support/navigation-support.html.headers
@@ -1 +1 @@
-Content-Security-Policy: trusted-types *
+Content-Security-Policy: trusted-types *; require-trusted-types-for 'script';
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-createHTMLDocument.tentative.html b/tests/wpt/web-platform-tests/trusted-types/trusted-types-createHTMLDocument.tentative.html
index 6ab5f42d5ffd..711e494a1607 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-createHTMLDocument.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-createHTMLDocument.tentative.html
@@ -2,7 +2,7 @@
 <head>
   <script src="/resources/testharness.js"></script>
   <script src="/resources/testharnessreport.js"></script>
-  <meta http-equiv="Content-Security-Policy" content="trusted-types * 'allow-duplicates'">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types * 'allow-duplicates'; require-trusted-types-for 'script'">
 </head>
 <body>
 <script>
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.tentative.https.html b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.tentative.https.html
index 7902df1c3038..786731041140 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.tentative.https.html
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.tentative.https.html
@@ -76,7 +76,7 @@
 
   promise_test(t => {
     let p = Promise.resolve()
-        .then(promise_violation("trusted-types *"))
+        .then(promise_violation("require-trusted-types-for 'script'"))
         .then(promise_flush());
     expect_throws(_ => eval('script_run_beacon="should not run"'));
     assert_equals(script_run_beacon, 'never_overwritten');
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.tentative.https.html.headers b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.tentative.https.html.headers
index 4bc0bd3c1ab2..30fe3b1df1d8 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.tentative.https.html.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-no-unsafe-eval.tentative.https.html.headers
@@ -1,4 +1,4 @@
 Content-Security-Policy: trusted-types *
 Content-Security-Policy: script-src http: https: 'nonce-123' 'report-sample'
 Content-Security-Policy: plugin-types bla/blubb
-
+Content-Security-Policy: require-trusted-types-for 'script'
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-report-only.tentative.https.html b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-report-only.tentative.https.html
index bd8933a48355..18c035215e0b 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-report-only.tentative.https.html
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-report-only.tentative.https.html
@@ -76,7 +76,7 @@
 
   promise_test(t => {
     let p = Promise.resolve()
-        .then(promise_violation("trusted-types *"))
+        .then(promise_violation("require-trusted-types-for 'script'"))
         .then(promise_flush());
     eval('script_run_beacon="report-only-does-not-stop"');
     assert_equals(script_run_beacon, 'report-only-does-not-stop');
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-report-only.tentative.https.html.headers b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-report-only.tentative.https.html.headers
index ba26c77fbf49..1d7033658c1e 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-report-only.tentative.https.html.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting-report-only.tentative.https.html.headers
@@ -1,4 +1,5 @@
 Content-Security-Policy-Report-Only: trusted-types *
 Content-Security-Policy: script-src http: https: 'nonce-123' 'unsafe-eval'
 Content-Security-Policy: plugin-types bla/blubb
+Content-Security-Policy-Report-Only: require-trusted-types-for 'script'
 
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting.tentative.https.html b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting.tentative.https.html
index c751ae1330cd..a521f94389ae 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting.tentative.https.html
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting.tentative.https.html
@@ -68,7 +68,7 @@
   promise_test(t => {
     let beacon = 'never_overwritten';
     let p = Promise.resolve()
-        .then(promise_violation("trusted-types *"))
+        .then(promise_violation("require-trusted-types-for 'script'"))
         .then(promise_flush());
     assert_throws(new EvalError(),
                   _ => eval('beacon="should not run"'));
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting.tentative.https.html.headers b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting.tentative.https.html.headers
index 2e935f73a48c..91a2be91ef74 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting.tentative.https.html.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-eval-reporting.tentative.https.html.headers
@@ -1,4 +1,5 @@
 Content-Security-Policy: trusted-types *
 Content-Security-Policy: script-src http: https: 'nonce-123' 'unsafe-eval'
 Content-Security-Policy: plugin-types bla/blubb
+Content-Security-Policy: require-trusted-types-for 'script'
 
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-navigation.tentative.html b/tests/wpt/web-platform-tests/trusted-types/trusted-types-navigation.tentative.html
index 7f17c64e5709..657cbb74e0ec 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-navigation.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-navigation.tentative.html
@@ -12,7 +12,8 @@
   }
 
   function expectViolationAsMessage(sample) {
-    const filter = e => (e.data.effectiveDirective == "trusted-types" &&
+    const filter = e => ((e.data.effectiveDirective == "require-trusted-types-for" ||
+                          e.data.effectiveDirective == "trusted-types") &&
                          (!sample || e.data.sample.startsWith(sample)));
     return new expectMessage(filter);
   }
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-report-only.tentative.https.html b/tests/wpt/web-platform-tests/trusted-types/trusted-types-report-only.tentative.https.html
index bf0a1eb9c191..fcb77841163d 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-report-only.tentative.https.html
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-report-only.tentative.https.html
@@ -77,8 +77,8 @@
     return p.then(report => {
       assert_equals(report.documentURI, "" + window.location);
       assert_equals(report.disposition, "report");
-      assert_equals(report.effectiveDirective, "trusted-types");
-      assert_equals(report.violatedDirective, "trusted-types");
+      assert_equals(report.effectiveDirective, "require-trusted-types-for");
+      assert_equals(report.violatedDirective, "require-trusted-types-for");
       assert_true(report.originalPolicy.startsWith("trusted-types two;"));
     });
   }, "Trusted Type violation report: check report contents");
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-report-only.tentative.https.html.headers b/tests/wpt/web-platform-tests/trusted-types/trusted-types-report-only.tentative.https.html.headers
index b38cfae2cb20..857a8b31e86b 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-report-only.tentative.https.html.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-report-only.tentative.https.html.headers
@@ -1 +1 @@
-Content-Security-Policy-Report-Only: trusted-types two; report-uri /content-security-policy/resources/dummy-report.php
+Content-Security-Policy-Report-Only: trusted-types two; report-uri /content-security-policy/resources/dummy-report.php; require-trusted-types-for 'script';
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-reporting.tentative.https.html b/tests/wpt/web-platform-tests/trusted-types/trusted-types-reporting.tentative.https.html
index 10a951fa12cb..ef282dc609c8 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-reporting.tentative.https.html
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-reporting.tentative.https.html
@@ -125,13 +125,13 @@
   }, "Trusted Type violation report: creating a forbidden-but-not-reported policy.");
 
   promise_test(t => {
-    let p = promise_violation("trusted-types two")();
+    let p = promise_violation("require-trusted-types-for 'script'")();
     expect_throws(_ => document.getElementById("script").src = url);
     return p;
   }, "Trusted Type violation report: assign string to script url");
 
   promise_test(t => {
-    let p = promise_violation("trusted-types two")();
+    let p = promise_violation("require-trusted-types-for 'script'")();
     expect_throws(_ => document.getElementById("div").innerHTML = "abc");
     return p;
   }, "Trusted Type violation report: assign string to html");
@@ -152,7 +152,7 @@
 
   promise_test(t => {
     let p = Promise.resolve()
-        .then(promise_violation("trusted-types two"))
+        .then(promise_violation("require-trusted-types-for 'script'"))
         .then(expect_blocked_uri("trusted-types-sink"))
         .then(expect_sample("Element.innerHTML"))
         .then(expect_sample("abc"));
@@ -162,7 +162,7 @@
 
   promise_test(t => {
     let p = Promise.resolve()
-        .then(promise_violation("trusted-types two"))
+        .then(promise_violation("require-trusted-types-for 'script'"))
         .then(expect_blocked_uri("trusted-types-sink"))
         .then(expect_sample("HTMLScriptElement.src"));
       expect_throws(_ => { document.getElementById("script").src = "" });
@@ -171,7 +171,7 @@
 
   promise_test(t => {
     let p = Promise.resolve()
-        .then(promise_violation("trusted-types two"))
+        .then(promise_violation("require-trusted-types-for 'script'"))
         .then(expect_blocked_uri("trusted-types-sink"))
         .then(expect_sample("HTMLElement.innerText"))
         .then(expect_sample("2+2;"));
@@ -181,7 +181,7 @@
 
   promise_test(t => {
     let p = Promise.resolve()
-        .then(promise_violation("trusted-types one"))
+        .then(promise_violation("require-trusted-types-for 'script'"))
         .then(expect_blocked_uri("trusted-types-sink"))
         .then(expect_sample("eval"))
         .then(expect_sample("2+2"))
@@ -195,7 +195,7 @@
     // We expect the sample string to always contain the name, and at least the
     // start of the value, but it should not be excessively long.
     let p = Promise.resolve()
-        .then(promise_violation("trusted-types two"))
+        .then(promise_violation("require-trusted-types-for 'script'"))
         .then(expect_blocked_uri("trusted-types-sink"))
         .then(expect_sample("HTMLElement.innerText"))
         .then(expect_sample("abbb"))
@@ -214,7 +214,7 @@
 
     promise_test(t => {
       let p = Promise.resolve()
-          .then(promise_violation("trusted-types one"))
+          .then(promise_violation("require-trusted-types-for 'script'"))
           .then(expect_blocked_uri("trusted-types-sink"))
           .then(expect_sample("HTMLScriptElement.src"))
           .then(expect_sample("abc"));
diff --git a/tests/wpt/web-platform-tests/trusted-types/trusted-types-reporting.tentative.https.html.headers b/tests/wpt/web-platform-tests/trusted-types/trusted-types-reporting.tentative.https.html.headers
index 947a151c874c..fa8aceab74b0 100644
--- a/tests/wpt/web-platform-tests/trusted-types/trusted-types-reporting.tentative.https.html.headers
+++ b/tests/wpt/web-platform-tests/trusted-types/trusted-types-reporting.tentative.https.html.headers
@@ -2,4 +2,5 @@ Content-Security-Policy: trusted-types one
 Content-Security-Policy-Report-Only: trusted-types two; report-uri /content-security-policy/resources/dummy-report.php
 Content-Security-Policy: plugin-types bla/blubb
 Content-Security-Policy: default-src * 'unsafe-inline'
+Content-Security-Policy: require-trusted-types-for 'script'
 
diff --git a/tests/wpt/web-platform-tests/trusted-types/tt-block-eval.tentative.html b/tests/wpt/web-platform-tests/trusted-types/tt-block-eval.tentative.html
index e721b0e0d369..8fe8aa50d6c9 100644
--- a/tests/wpt/web-platform-tests/trusted-types/tt-block-eval.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/tt-block-eval.tentative.html
@@ -3,7 +3,7 @@
 <head>
   <script src="/resources/testharness.js"></script>
   <script src="/resources/testharnessreport.js"></script>
-  <meta http-equiv="Content-Security-Policy" content="trusted-types *">
+  <meta http-equiv="Content-Security-Policy" content="trusted-types *; require-trusted-types-for 'script'">
 </head>
 <body>
 <script>
diff --git a/tests/wpt/web-platform-tests/url/urlsearchparams-constructor.any.js b/tests/wpt/web-platform-tests/url/urlsearchparams-constructor.any.js
index 398021dde2f3..f7989f70ea00 100644
--- a/tests/wpt/web-platform-tests/url/urlsearchparams-constructor.any.js
+++ b/tests/wpt/web-platform-tests/url/urlsearchparams-constructor.any.js
@@ -22,7 +22,7 @@ test(function () {
 test(() => {
     var params = new URLSearchParams(DOMException);
     assert_equals(params.toString(), "INDEX_SIZE_ERR=1&DOMSTRING_SIZE_ERR=2&HIERARCHY_REQUEST_ERR=3&WRONG_DOCUMENT_ERR=4&INVALID_CHARACTER_ERR=5&NO_DATA_ALLOWED_ERR=6&NO_MODIFICATION_ALLOWED_ERR=7&NOT_FOUND_ERR=8&NOT_SUPPORTED_ERR=9&INUSE_ATTRIBUTE_ERR=10&INVALID_STATE_ERR=11&SYNTAX_ERR=12&INVALID_MODIFICATION_ERR=13&NAMESPACE_ERR=14&INVALID_ACCESS_ERR=15&VALIDATION_ERR=16&TYPE_MISMATCH_ERR=17&SECURITY_ERR=18&NETWORK_ERR=19&ABORT_ERR=20&URL_MISMATCH_ERR=21&QUOTA_EXCEEDED_ERR=22&TIMEOUT_ERR=23&INVALID_NODE_TYPE_ERR=24&DATA_CLONE_ERR=25")
-    assert_throws(new TypeError(), () => new URLSearchParams(DOMException.prototype),
+    assert_throws_js(TypeError, () => new URLSearchParams(DOMException.prototype),
                   "Constructing a URLSearchParams from DOMException.prototype should throw due to branding checks");
 }, "URLSearchParams constructor, DOMException as argument")
 
@@ -153,8 +153,8 @@ test(function() {
     params = new URLSearchParams([['a', 'b'], ['c', 'd']]);
     assert_equals(params.get("a"), "b");
     assert_equals(params.get("c"), "d");
-    assert_throws(new TypeError(), function() { new URLSearchParams([[1]]); });
-    assert_throws(new TypeError(), function() { new URLSearchParams([[1,2,3]]); });
+    assert_throws_js(TypeError, function() { new URLSearchParams([[1]]); });
+    assert_throws_js(TypeError, function() { new URLSearchParams([[1,2,3]]); });
 }, "Constructor with sequence of sequences of strings");
 
 [
diff --git a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-createDataChannel.html b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-createDataChannel.html
index 58e757bce076..943e57287754 100644
--- a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-createDataChannel.html
+++ b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-createDataChannel.html
@@ -69,7 +69,7 @@
   t.add_cleanup(() => pc.close());
 
   assert_equals(pc.createDataChannel.length, 1);
-  assert_throws(new TypeError(), () => pc.createDataChannel());
+  assert_throws_js(TypeError, () => pc.createDataChannel());
 }, 'createDataChannel with no argument should throw TypeError');
 
 /*
@@ -292,11 +292,11 @@
   const pc = new RTCPeerConnection;
   t.add_cleanup(() => pc.close());
 
-  assert_throws(new TypeError(), () => pc.createDataChannel('', {
+  assert_throws_js(TypeError, () => pc.createDataChannel('', {
     maxPacketLifeTime: 0,
     maxRetransmits: 0
   }));
-  assert_throws(new TypeError(), () => pc.createDataChannel('', {
+  assert_throws_js(TypeError, () => pc.createDataChannel('', {
     maxPacketLifeTime: 42,
     maxRetransmits: 42
   }));
@@ -330,6 +330,15 @@
       20. If [[DataChannelId]] is equal to 65535, which is greater than the maximum allowed
           ID of 65534 but still qualifies as an unsigned short, throw a TypeError.
  */
+for (const id of [0, 1, 65534, 65535]) {
+  test((t) => {
+    const pc = new RTCPeerConnection();
+    t.add_cleanup(() => pc.close());
+    const dc = pc.createDataChannel('', { id });
+    assert_equals(dc.id, null);
+  }, `createDataChannel with id ${id} and negotiated not set should succeed, but not set the channel's id`);
+}
+
 for (const id of [0, 1, 65534]) {
   test(t => {
     const pc = new RTCPeerConnection();
@@ -337,7 +346,15 @@
 
     const dc = pc.createDataChannel('', { 'negotiated': true, 'id': id });
     assert_equals(dc.id, id);
-  }, `createDataChannel with id ${id} should succeed`);
+  }, `createDataChannel with id ${id} and negotiated true should succeed, and set the channel's id`);
+}
+
+for (const id of [-1, 65536]) {
+  test((t) => {
+    const pc = new RTCPeerConnection();
+    t.add_cleanup(() => pc.close());
+    assert_throws_js(TypeError, () => pc.createDataChannel('', { id }));
+  }, `createDataChannel with id ${id} and negotiated not set should throw TypeError`);
 }
 
 for (const id of [-1, 65535, 65536]) {
@@ -345,7 +362,7 @@
     const pc = new RTCPeerConnection();
     t.add_cleanup(() => pc.close());
 
-    assert_throws(new TypeError(), () => pc.createDataChannel('',
+    assert_throws_js(TypeError, () => pc.createDataChannel('',
         { 'negotiated': true, 'id': id }));
   }, `createDataChannel with id ${id} should throw TypeError`);
 }
@@ -380,10 +397,10 @@
   const pc = new RTCPeerConnection();
   t.add_cleanup(() => pc.close());
 
-  assert_throws(new TypeError(), () =>
+  assert_throws_js(TypeError, () =>
     pc.createDataChannel('l'.repeat(65536)));
 
-  assert_throws(new TypeError(), () =>
+  assert_throws_js(TypeError, () =>
     pc.createDataChannel('l'.repeat(65536), {
       negotiated: true,
       id: 42
@@ -394,10 +411,10 @@
   const pc = new RTCPeerConnection();
   t.add_cleanup(() => pc.close());
 
-  assert_throws(new TypeError(), () =>
+  assert_throws_js(TypeError, () =>
     pc.createDataChannel('\u00b5'.repeat(32768)));
 
-  assert_throws(new TypeError(), () =>
+  assert_throws_js(TypeError, () =>
     pc.createDataChannel('\u00b5'.repeat(32768), {
       negotiated: true,
       id: 42
@@ -435,12 +452,12 @@
   const pc = new RTCPeerConnection();
   t.add_cleanup(() => pc.close());
 
-  assert_throws(new TypeError(), () =>
+  assert_throws_js(TypeError, () =>
     pc.createDataChannel('', {
       protocol: 'p'.repeat(65536)
     }));
 
-  assert_throws(new TypeError(), () =>
+  assert_throws_js(TypeError, () =>
     pc.createDataChannel('', {
       protocol: 'p'.repeat(65536),
       negotiated: true,
@@ -452,12 +469,12 @@
   const pc = new RTCPeerConnection();
   t.add_cleanup(() => pc.close());
 
-  assert_throws(new TypeError(), () =>
+  assert_throws_js(TypeError, () =>
     pc.createDataChannel('', {
       protocol: '\u00b6'.repeat(32768)
     }));
 
-  assert_throws(new TypeError(), () =>
+  assert_throws_js(TypeError, () =>
     pc.createDataChannel('', {
       protocol: '\u00b6'.repeat(32768),
       negotiated: true,
@@ -520,7 +537,7 @@
   const pc = new RTCPeerConnection();
   t.add_cleanup(() => pc.close());
 
-  assert_throws(new TypeError(), () =>
+  assert_throws_js(TypeError, () =>
     pc.createDataChannel('test', {
       negotiated: true
     }));
diff --git a/tests/wpt/web-platform-tests/workers/modules/resources/dynamic-import-and-then-static-import-worker.js b/tests/wpt/web-platform-tests/workers/modules/resources/dynamic-import-and-then-static-import-worker.js
index 9a386e63be51..527702f55117 100644
--- a/tests/wpt/web-platform-tests/workers/modules/resources/dynamic-import-and-then-static-import-worker.js
+++ b/tests/wpt/web-platform-tests/workers/modules/resources/dynamic-import-and-then-static-import-worker.js
@@ -1,12 +1,24 @@
 // This script is meant to be imported by a module worker. It receives a
 // message from the worker and responds with the list of imported modules.
 const sourcePromise = new Promise(resolve => {
-  self.onmessage = e => {
-    // DedicatedWorkerGlobalScope doesn't fill in e.source,
-    // so use e.target instead.
-    const source = e.source ? e.source : e.target;
-    resolve(source);
-  };
+  if ('DedicatedWorkerGlobalScope' in self &&
+      self instanceof DedicatedWorkerGlobalScope) {
+    self.onmessage = e => {
+      resolve(e.target);
+    };
+  } else if (
+      'SharedWorkerGlobalScope' in self &&
+      self instanceof SharedWorkerGlobalScope) {
+    self.onconnect = e => {
+      resolve(e.ports[0]);
+    };
+  } else if (
+      'ServiceWorkerGlobalScope' in self &&
+      self instanceof ServiceWorkerGlobalScope) {
+    self.onmessage = e => {
+      resolve(e.source);
+    };
+  }
 });
 
 const importedModulesPromise =
diff --git a/tests/wpt/web-platform-tests/workers/modules/resources/dynamic-import-worker.js b/tests/wpt/web-platform-tests/workers/modules/resources/dynamic-import-worker.js
index 07f4df9db3eb..2e756fe055e9 100644
--- a/tests/wpt/web-platform-tests/workers/modules/resources/dynamic-import-worker.js
+++ b/tests/wpt/web-platform-tests/workers/modules/resources/dynamic-import-worker.js
@@ -1,12 +1,24 @@
 // This script is meant to be imported by a module worker. It receives a
 // message from the worker and responds with the list of imported modules.
 const sourcePromise = new Promise(resolve => {
-  self.onmessage = e => {
-    // DedicatedWorkerGlobalScope doesn't fill in e.source,
-    // so use e.target instead.
-    const source = e.source ? e.source : e.target;
-    resolve(source);
-  };
+  if ('DedicatedWorkerGlobalScope' in self &&
+      self instanceof DedicatedWorkerGlobalScope) {
+    self.onmessage = e => {
+      resolve(e.target);
+    };
+  } else if (
+      'SharedWorkerGlobalScope' in self &&
+      self instanceof SharedWorkerGlobalScope) {
+    self.onconnect = e => {
+      resolve(e.ports[0]);
+    };
+  } else if (
+      'ServiceWorkerGlobalScope' in self &&
+      self instanceof ServiceWorkerGlobalScope) {
+    self.onmessage = e => {
+      resolve(e.source);
+    };
+  }
 });
 
 const importedModulesPromise =
diff --git a/tests/wpt/web-platform-tests/workers/modules/resources/eval-dynamic-import-worker.js b/tests/wpt/web-platform-tests/workers/modules/resources/eval-dynamic-import-worker.js
index af57b19f98dd..60080d4292a8 100644
--- a/tests/wpt/web-platform-tests/workers/modules/resources/eval-dynamic-import-worker.js
+++ b/tests/wpt/web-platform-tests/workers/modules/resources/eval-dynamic-import-worker.js
@@ -1,18 +1,29 @@
 // This script is meant to be imported by a module worker. It receives a
 // message from the worker and responds with the list of imported modules.
-const code =
-  "const sourcePromise = new Promise(resolve => {" +
-  "  self.onmessage = e => {" +
-  "    const source = e.source ? e.source : e.target;" +
-  "    resolve(source);" +
-  "  };" +
-  "});" +
-  "const importedModulesPromise =" +
-  "  import('./export-on-load-script.js')" +
-  "    .then(module => module.importedModules)" +
-  "    .catch(error => `Failed to do dynamic import: ${error}`);" +
-  "Promise.all([sourcePromise, importedModulesPromise]).then(results => {" +
-  "  const [source, importedModules] = results;" +
-  "  source.postMessage(importedModules);" +
-  "});";
+const code = 'const sourcePromise = new Promise(resolve => {' +
+    '  if (\'DedicatedWorkerGlobalScope\' in self &&' +
+    '      self instanceof DedicatedWorkerGlobalScope) {' +
+    '    self.onmessage = e => {' +
+    '      resolve(e.target);' +
+    '    };' +
+    '  } else if (\'SharedWorkerGlobalScope\' in self &&' +
+    '             self instanceof SharedWorkerGlobalScope) {' +
+    '    self.onconnect = e => {' +
+    '      resolve(e.ports[0]);' +
+    '    };' +
+    '  } else if (\'ServiceWorkerGlobalScope\' in self &&' +
+    '             self instanceof ServiceWorkerGlobalScope) {' +
+    '    self.onmessage = e => {' +
+    '      resolve(e.source);' +
+    '    };' +
+    '  }' +
+    '});' +
+    'const importedModulesPromise =' +
+    '  import(\'./export-on-load-script.js\')' +
+    '    .then(module => module.importedModules)' +
+    '    .catch(error => `Failed to do dynamic import: ${error}`);' +
+    'Promise.all([sourcePromise, importedModulesPromise]).then(results => {' +
+    '  const [source, importedModules] = results;' +
+    '  source.postMessage(importedModules);' +
+    '});';
 eval(code);
diff --git a/tests/wpt/web-platform-tests/workers/modules/resources/import-scripts-worker.js b/tests/wpt/web-platform-tests/workers/modules/resources/import-scripts-worker.js
index 676cccb2ad7f..d85f573ffe3a 100644
--- a/tests/wpt/web-platform-tests/workers/modules/resources/import-scripts-worker.js
+++ b/tests/wpt/web-platform-tests/workers/modules/resources/import-scripts-worker.js
@@ -1,6 +1,15 @@
 try {
   importScripts('empty-worker.js');
-  postMessage('LOADED');
+  if ('DedicatedWorkerGlobalScope' in self &&
+      self instanceof DedicatedWorkerGlobalScope) {
+    postMessage('LOADED');
+  } else if (
+      'SharedWorkerGlobalScope' in self &&
+      self instanceof SharedWorkerGlobalScope) {
+    onconnect = e => {
+      e.ports[0].postMessage('LOADED');
+    };
+  }
 } catch (e) {
   // Post a message instead of propagating an ErrorEvent to the page because
   // propagated event loses an error name.
@@ -11,5 +20,14 @@ try {
   // and colno attributes initialized appropriately, and the error attribute
   // initialized to null."
   // https://html.spec.whatwg.org/multipage/workers.html#runtime-script-errors-2
-  postMessage(e.name);
+  if ('DedicatedWorkerGlobalScope' in self &&
+      self instanceof DedicatedWorkerGlobalScope) {
+    postMessage(e.name);
+  } else if (
+      'SharedWorkerGlobalScope' in self &&
+      self instanceof SharedWorkerGlobalScope) {
+    onconnect = connectEvent => {
+      connectEvent.ports[0].postMessage(e.name);
+    };
+  }
 }
diff --git a/tests/wpt/web-platform-tests/workers/modules/resources/nested-dynamic-import-worker.js b/tests/wpt/web-platform-tests/workers/modules/resources/nested-dynamic-import-worker.js
index cb37f6e20f67..00da43c5f078 100644
--- a/tests/wpt/web-platform-tests/workers/modules/resources/nested-dynamic-import-worker.js
+++ b/tests/wpt/web-platform-tests/workers/modules/resources/nested-dynamic-import-worker.js
@@ -2,12 +2,24 @@
 // message from the worker and responds with the list of imported modules.
 
 const sourcePromise = new Promise(resolve => {
-  self.onmessage = e => {
-    // DedicatedWorkerGlobalScope doesn't fill in e.source,
-    // so use e.target instead.
-    const source = e.source ? e.source : e.target;
-    resolve(source);
-  };
+  if ('DedicatedWorkerGlobalScope' in self &&
+      self instanceof DedicatedWorkerGlobalScope) {
+    self.onmessage = e => {
+      resolve(e.target);
+    };
+  } else if (
+      'SharedWorkerGlobalScope' in self &&
+      self instanceof SharedWorkerGlobalScope) {
+    self.onconnect = e => {
+      resolve(e.ports[0]);
+    };
+  } else if (
+      'ServiceWorkerGlobalScope' in self &&
+      self instanceof ServiceWorkerGlobalScope) {
+    self.onmessage = e => {
+      resolve(e.source);
+    };
+  }
 });
 
 const importedModulesPromise =
diff --git a/tests/wpt/web-platform-tests/workers/modules/resources/nested-static-import-worker.js b/tests/wpt/web-platform-tests/workers/modules/resources/nested-static-import-worker.js
index 7599faaa099f..c3a9ff0b799d 100644
--- a/tests/wpt/web-platform-tests/workers/modules/resources/nested-static-import-worker.js
+++ b/tests/wpt/web-platform-tests/workers/modules/resources/nested-static-import-worker.js
@@ -1,9 +1,21 @@
 // This script is meant to be imported by a module worker. It receives a
 // message from the worker and responds with the list of imported modules.
 import * as module from './export-on-static-import-script.js';
-self.onmessage = e => {
-  // DedicatedWorkerGlobalScope doesn't fill in e.source,
-  // so use e.target instead.
-  const source = e.source ? e.source : e.target;
-  source.postMessage(module.importedModules);
-};
+if ('DedicatedWorkerGlobalScope' in self &&
+    self instanceof DedicatedWorkerGlobalScope) {
+  self.onmessage = e => {
+    e.target.postMessage(module.importedModules);
+  };
+} else if (
+    'SharedWorkerGlobalScope' in self &&
+    self instanceof SharedWorkerGlobalScope) {
+  self.onconnect = e => {
+    e.ports[0].postMessage(module.importedModules);
+  };
+} else if (
+    'ServiceWorkerGlobalScope' in self &&
+    self instanceof ServiceWorkerGlobalScope) {
+  self.onmessage = e => {
+    e.source.postMessage(module.importedModules);
+  };
+}
diff --git a/tests/wpt/web-platform-tests/workers/modules/resources/post-message-on-load-worker.js b/tests/wpt/web-platform-tests/workers/modules/resources/post-message-on-load-worker.js
index 93818ccad90c..e1c547ab6a4d 100644
--- a/tests/wpt/web-platform-tests/workers/modules/resources/post-message-on-load-worker.js
+++ b/tests/wpt/web-platform-tests/workers/modules/resources/post-message-on-load-worker.js
@@ -1 +1,10 @@
-postMessage('LOADED');
+if ('DedicatedWorkerGlobalScope' in self &&
+    self instanceof DedicatedWorkerGlobalScope) {
+  postMessage('LOADED');
+} else if (
+    'SharedWorkerGlobalScope' in self &&
+    self instanceof SharedWorkerGlobalScope) {
+  self.onconnect = e => {
+    e.ports[0].postMessage('LOADED');
+  };
+}
diff --git a/tests/wpt/web-platform-tests/workers/modules/resources/static-import-and-then-dynamic-import-worker.js b/tests/wpt/web-platform-tests/workers/modules/resources/static-import-and-then-dynamic-import-worker.js
index cd98d8c17df6..2d857a2e90a1 100644
--- a/tests/wpt/web-platform-tests/workers/modules/resources/static-import-and-then-dynamic-import-worker.js
+++ b/tests/wpt/web-platform-tests/workers/modules/resources/static-import-and-then-dynamic-import-worker.js
@@ -3,12 +3,24 @@
 import * as module from './export-on-dynamic-import-script.js';
 
 const sourcePromise = new Promise(resolve => {
-  self.onmessage = e => {
-    // DedicatedWorkerGlobalScope doesn't fill in e.source,
-    // so use e.target instead.
-    const source = e.source ? e.source : e.target;
-    resolve(source);
-  };
+  if ('DedicatedWorkerGlobalScope' in self &&
+      self instanceof DedicatedWorkerGlobalScope) {
+    self.onmessage = e => {
+      resolve(e.target);
+    };
+  } else if (
+      'SharedWorkerGlobalScope' in self &&
+      self instanceof SharedWorkerGlobalScope) {
+    self.onconnect = e => {
+      resolve(e.ports[0]);
+    };
+  } else if (
+      'ServiceWorkerGlobalScope' in self &&
+      self instanceof ServiceWorkerGlobalScope) {
+    self.onmessage = e => {
+      resolve(e.source);
+    };
+  }
 });
 
 export let importedModules = ['export-on-dynamic-import-script.js'];
diff --git a/tests/wpt/web-platform-tests/workers/modules/resources/static-import-worker.js b/tests/wpt/web-platform-tests/workers/modules/resources/static-import-worker.js
index 48751dbe03bb..19a347999d38 100644
--- a/tests/wpt/web-platform-tests/workers/modules/resources/static-import-worker.js
+++ b/tests/wpt/web-platform-tests/workers/modules/resources/static-import-worker.js
@@ -1,9 +1,21 @@
 // This script is meant to be imported by a module worker. It receives a
 // message from the worker and responds with the list of imported modules.
 import * as module from './export-on-load-script.js';
-self.onmessage = e => {
-  // DedicatedWorkerGlobalScope doesn't fill in e.source,
-  // so use e.target instead.
-  const source = e.source ? e.source : e.target;
-  source.postMessage(module.importedModules);
-};
+if ('DedicatedWorkerGlobalScope' in self &&
+    self instanceof DedicatedWorkerGlobalScope) {
+  self.onmessage = e => {
+    e.target.postMessage(module.importedModules);
+  };
+} else if (
+    'SharedWorkerGlobalScope' in self &&
+    self instanceof SharedWorkerGlobalScope) {
+  self.onconnect = e => {
+    e.ports[0].postMessage(module.importedModules);
+  };
+} else if (
+    'ServiceWorkerGlobalScope' in self &&
+    self instanceof ServiceWorkerGlobalScope) {
+  self.onmessage = e => {
+    e.source.postMessage(module.importedModules);
+  };
+}
diff --git a/tests/wpt/web-platform-tests/workers/modules/shared-worker-import-blob-url.any.js b/tests/wpt/web-platform-tests/workers/modules/shared-worker-import-blob-url.any.js
new file mode 100644
index 000000000000..d9e9e34c394b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/workers/modules/shared-worker-import-blob-url.any.js
@@ -0,0 +1,23 @@
+// META: global=!worker
+// META: script=/workers/modules/resources/import-test-cases.js
+
+// Imports |testCase.scriptURL| on a shared worker loaded from a blob URL,
+// and waits until the list of imported modules is sent from the worker. Passes
+// if the list is equal to |testCase.expectation|.
+function import_blob_url_test(testCase) {
+  promise_test(async () => {
+    const importURL = new URL(testCase.scriptURL, location.href);
+    const blob =
+        new Blob([`import "${importURL}";`], {type: 'text/javascript'});
+    const blobURL = URL.createObjectURL(blob);
+    const worker = new SharedWorker(blobURL, {type: 'module'});
+    worker.port.postMessage('Send message for tests from main script.');
+    const msgEvent = await new Promise((resolve, reject) => {
+      worker.port.onmessage = resolve;
+      worker.onerror = (error) => reject(error && error.message);
+    });
+    assert_array_equals(msgEvent.data, testCase.expectation);
+  }, testCase.description);
+}
+
+testCases.forEach(import_blob_url_test);
diff --git a/tests/wpt/web-platform-tests/workers/modules/shared-worker-import-failure.html b/tests/wpt/web-platform-tests/workers/modules/shared-worker-import-failure.html
new file mode 100644
index 000000000000..0e0b9b306314
--- /dev/null
+++ b/tests/wpt/web-platform-tests/workers/modules/shared-worker-import-failure.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>SharedWorker: import failure</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script> setup({allow_uncaught_exception: true}); </script>
+<script>
+
+// TODO: Factor out the test cases into a separate file.
+// (like import-test-cases.js)
+// TODO: Add rest of the tests correponding to
+// 'dedicated-worker-import-failure.html'
+
+promise_test(async () => {
+  const scriptURL = 'resources/import-scripts-worker.js';
+  const worker = new SharedWorker(scriptURL, { type: 'module' });
+  const msg_event =
+    await new Promise(resolve => worker.port.onmessage = resolve);
+  assert_equals(msg_event.data, 'TypeError');
+}, 'importScripts() on module worker should throw an exception.');
+
+test(() => {
+  const scriptURL = 'http://invalid:123$';
+  assert_throws('SyntaxError',
+                () => new SharedWorker(scriptURL, { type: 'module' }));
+}, 'SharedWorker construction for an invalid URL should throw an exception.');
+
+test(() => {
+  const scriptURL = 'file:///static-import-worker.js';
+  assert_throws('SecurityError',
+                () => new SharedWorker(scriptURL, { type: 'module' }));
+}, 'SharedWorker construction for a file URL should throw an exception.');
+
+</script>
diff --git a/tests/wpt/web-platform-tests/workers/modules/shared-worker-import.any.js b/tests/wpt/web-platform-tests/workers/modules/shared-worker-import.any.js
new file mode 100644
index 000000000000..450d4ad422b8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/workers/modules/shared-worker-import.any.js
@@ -0,0 +1,19 @@
+// META: global=!worker
+// META: script=/workers/modules/resources/import-test-cases.js
+
+// Starts a shared worker for |testCase.scriptURL| and waits until the list
+// of imported modules is sent from the worker. Passes if the list is equal to
+// |testCase.expectation|.
+function import_test(testCase) {
+  promise_test(async () => {
+    const worker = new SharedWorker(testCase.scriptURL, {type: 'module'});
+    worker.port.postMessage('Send message for tests from main script.');
+    const msgEvent = await new Promise((resolve, reject) => {
+      worker.port.onmessage = resolve;
+      worker.onerror = (error) => reject(error && error.message);
+    });
+    assert_array_equals(msgEvent.data, testCase.expectation);
+  }, testCase.description);
+}
+
+testCases.forEach(import_test);
diff --git a/tests/wpt/web-platform-tests/workers/modules/shared-worker-options-type.html b/tests/wpt/web-platform-tests/workers/modules/shared-worker-options-type.html
new file mode 100644
index 000000000000..25b793c631de
--- /dev/null
+++ b/tests/wpt/web-platform-tests/workers/modules/shared-worker-options-type.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<title>SharedWorker: WorkerOptions 'type'</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+
+promise_test(() => {
+  const worker = new SharedWorker('resources/post-message-on-load-worker.js');
+  return new Promise(resolve => worker.port.onmessage = resolve)
+      .then(msg_event => assert_equals(msg_event.data, 'LOADED'));
+}, 'Test worker construction with the default worker type.');
+
+promise_test(() => {
+  const worker = new SharedWorker('resources/post-message-on-load-worker.js',
+                                  { type: 'classic' });
+  return new Promise(resolve => worker.port.onmessage = resolve)
+      .then(msg_event => assert_equals(msg_event.data, 'LOADED'));
+}, 'Test worker construction with the "classic" worker type.');
+
+promise_test(() => {
+  const worker = new SharedWorker('resources/post-message-on-load-worker.js',
+                                  { type: 'module' });
+  return new Promise(resolve => worker.port.onmessage = resolve)
+      .then(msg_event => assert_equals(msg_event.data, 'LOADED'));
+}, 'Test worker construction with the "module" worker type.');
+
+test(() => {
+  assert_throws(
+      new TypeError(),
+      () => {
+        new SharedWorker('resources/post-message-on-load-worker.js',
+                         {type : ''});
+      },
+      'Worker construction with an empty type should throw an exception');
+}, 'Test worker construction with an empty worker type.');
+
+test(() => {
+  assert_throws(
+      new TypeError(),
+      () => {
+        new SharedWorker('resources/post-message-on-load-worker.js',
+                         {type : 'unknown'});
+      },
+      'Worker construction with an unknown type should throw an exception');
+}, 'Test worker construction with an unknown worker type.');
+
+</script>