Sync navigation-api from WPT

https://bugs.webkit.org/show_bug.cgi?id=273815 Reviewed by Tim Nguyen. Based on WPT SHA f409c99393. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/WEB_FEATURES.yml: Added. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/cross-origin-traversal-redirect.html: Added. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/event-constructor.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-cross-origin.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-download-userInitiated.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-download.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-fragment-expected.txt: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-fragment.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-same-origin-cross-document.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-userInitiated-expected.txt: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-userInitiated.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-with-target.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-destination-getState-back-forward.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-destination-getState-navigate.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-destination-getState-reload.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-get.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-reload.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-traverse.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-userInitiated.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-with-target.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-after-fragment.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-after-pushState.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-bfcache.html: Added. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-cross-document.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-go-0.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-pushState.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-replaceState.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-iframe-location.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-location.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-meta-refresh.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-navigation-back-cross-document.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-navigation-back-same-document-in-iframe.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-navigation-back-same-document.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-navigation-navigate.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-svg-anchor-fragment-expected.txt: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-svg-anchor-fragment.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-to-srcdoc.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-window-open-self.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-window-open.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/resources/cross-origin-redirect-on-second-visit.py: Added. (redirect_response): (ok_response): (main): * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/resources/w3c-import.log: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/w3c-import.log: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/back-204-205-download.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/navigate-pagehide.html: Renamed from LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/navigate-unload.html. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/navigate-rejection-order-invalidurl-pagehide.html: Renamed from LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/navigate-rejection-order-invalidurl-unload.html. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/navigate-rejection-order-invalidurl-unload-expected.txt: Removed. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/navigate-rejection-order-pagehide-unserializablestate.html: Renamed from LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/navigate-rejection-order-unload-unserializablestate.html. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/navigate-rejection-order-unload-unserializablestate-expected.txt: Removed. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/navigate-unload-expected.txt: Removed. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/reload-pagehide.html: Renamed from LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/reload-unload.html. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/reload-rejection-order-pagehide-unserializablestate.html: Renamed from LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/reload-rejection-order-unload-unserializablestate.html. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/reload-rejection-order-unload-unserializablestate-expected.txt: Removed. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/reload-unload-expected.txt: Removed. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigation-methods/return-value/w3c-import.log: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/ordering-and-transition/back-cross-document-event-order.html: Added. * LayoutTests/imported/w3c/web-platform-tests/navigation-api/ordering-and-transition/navigate-cross-document-event-order.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/ordering-and-transition/w3c-import.log: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/scroll-behavior/after-transition-intercept-handler-modifies.html: * LayoutTests/imported/w3c/web-platform-tests/navigation-api/w3c-import.log: Canonical link: https://commits.webkit.org/278449@main
WebKit · May 7, 2024 · b6ec312 · b6ec312
1 parent 6a2c5a3
commit b6ec312
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Showing 60 changed files with 232 additions and 91 deletions.
diff --git a/LayoutTests/imported/w3c/web-platform-tests/navigation-api/WEB_FEATURES.yml b/LayoutTests/imported/w3c/web-platform-tests/navigation-api/WEB_FEATURES.yml
@@ -0,0 +1,3 @@
+features:
+- name: navigation
+  files: "**"
diff --git a/...w3c/web-platform-tests/navigation-api/navigate-event/cross-origin-traversal-redirect.html b/...w3c/web-platform-tests/navigation-api/navigate-event/cross-origin-traversal-redirect.html
@@ -0,0 +1,33 @@
+<!doctype html>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/utils.js"></script>
+<script>
+promise_test(async t => {
+  let i = document.createElement("iframe");
+  i.src = "resources/cross-origin-redirect-on-second-visit.py?key=" + token();
+  document.body.appendChild(i);
+
+  // Wait for after the load event so that the navigation doesn't get converted
+  // into a replace navigation.
+  await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0));
+
+  let original_iframe_url = i.contentWindow.location.href;
+
+  // Do a cross-document push navigation in the iframe.
+  i.contentWindow.navigation.navigate("/common/blank.html");
+  await new Promise(resolve => i.onload = resolve);
+
+  // Go back. This will trigger a cross-origin redirect, but the navigate event
+  // should still fire, and the event url should be the pre-redirect url (which
+  // is same-origin).
+  history.back();
+  let navigate_event_url = await new Promise(resolve => i.contentWindow.navigation.onnavigate = e => {
+    resolve(e.destination.url);
+  });
+  await new Promise(resolve => i.onload = resolve);
+  assert_equals(navigate_event_url, original_iframe_url);
+}, "A traversal that redirects from same-origin to cross-origin fires the navigate event");
+</script>
+</body>
diff --git a/...ests/imported/w3c/web-platform-tests/navigation-api/navigate-event/event-constructor.html b/...ests/imported/w3c/web-platform-tests/navigation-api/navigate-event/event-constructor.html
@@ -78,7 +78,8 @@
     assert_equals(event.downloadRequest, downloadRequest);
     assert_equals(event.info, info);
     assert_equals(event.hasUAVisualTransition, hasUAVisualTransition);
-    assert_equals(event.sourceElement, sourceElement);
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(event.sourceElement, sourceElement);
   });
   history.pushState(2, null, "#2");
 }, "all properties are reflected back");
@@ -98,7 +99,8 @@
     assert_equals(event.formData, null);
     assert_equals(event.downloadRequest, null);
     assert_equals(event.info, undefined);
-    assert_equals(event.sourceElement, null);
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(event.sourceElement, null);
   });
   history.pushState(3, null, "#3");
 }, "defaults are as expected");

diff --git a/...ed/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-cross-origin.html b/...ed/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-cross-origin.html
@@ -17,7 +17,8 @@
     assert_equals(e.destination.key, "");
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
-    assert_equals(e.sourceElement, document.getElementById("a"));
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, document.getElementById("a"));
     e.preventDefault();
   });
   a.click();

diff --git a/...-platform-tests/navigation-api/navigate-event/navigate-anchor-download-userInitiated.html b/...-platform-tests/navigation-api/navigate-event/navigate-anchor-download-userInitiated.html
@@ -21,7 +21,8 @@
     assert_equals(e.destination.key, "");
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
-    assert_equals(e.sourceElement, document.getElementById("a"));
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, document.getElementById("a"));
     e.preventDefault();
     t.step_timeout(t.step_func_done(() => assert_equals(location.hash, "")), 0);
   });

diff --git a/...ported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-download.html b/...ported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-download.html
@@ -25,7 +25,8 @@
       assert_equals(e.destination.key, "");
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
-      assert_equals(e.sourceElement, a);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, a);
       e.preventDefault();
     });
     a.click();

diff --git a/...3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-fragment-expected.txt b/...3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-fragment-expected.txt
@@ -1,3 +1,3 @@
 
-FAIL Fragment <a> click fires navigate event assert_equals: expected (object) Element node <a id="a" href="#1"></a> but got (undefined) undefined
+PASS Fragment <a> click fires navigate event
 
diff --git a/...ported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-fragment.html b/...ported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-fragment.html
@@ -17,7 +17,8 @@
     assert_equals(e.destination.key, "");
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
-    assert_equals(e.sourceElement, document.getElementById("a"));
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, document.getElementById("a"));
     e.preventDefault();
     t.step_timeout(t.step_func_done(() => assert_equals(location.hash, "")), 0);
   });

diff --git a/...tform-tests/navigation-api/navigate-event/navigate-anchor-same-origin-cross-document.html b/...tform-tests/navigation-api/navigate-event/navigate-anchor-same-origin-cross-document.html
@@ -18,7 +18,8 @@
     assert_equals(e.destination.key, "");
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
-    assert_equals(e.sourceElement, document.getElementById("a"));
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, document.getElementById("a"));
     e.preventDefault();
   });
   a.click();

diff --git a/...b-platform-tests/navigation-api/navigate-event/navigate-anchor-userInitiated-expected.txt b/...b-platform-tests/navigation-api/navigate-event/navigate-anchor-userInitiated-expected.txt
@@ -1,4 +1,4 @@
 Click me
 
-FAIL Fragment <a> click fires navigate event assert_equals: expected (object) Element node <a id="a" href="#1">Click me</a> but got (undefined) undefined
+PASS Fragment <a> click fires navigate event
 
diff --git a/...d/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-userInitiated.html b/...d/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-userInitiated.html
@@ -20,7 +20,8 @@
     assert_equals(e.destination.key, "");
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
-    assert_equals(e.sourceElement, document.getElementById("a"));
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, document.getElementById("a"));
     e.preventDefault();
     t.step_timeout(t.step_func_done(() => assert_equals(location.hash, "")), 0);
   });

diff --git a/...ted/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-with-target.html b/...ted/w3c/web-platform-tests/navigation-api/navigate-event/navigate-anchor-with-target.html
@@ -20,10 +20,11 @@
       assert_equals(new URL(e.destination.url).pathname,
                     "/navigation-api/navigate-event/foo.html");
       assert_false(e.destination.sameDocument);
-    assert_equals(e.destination.key, "");
-    assert_equals(e.destination.id, "");
+      assert_equals(e.destination.key, "");
+      assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
       e.preventDefault();
     });
     a.click();

diff --git a/...tform-tests/navigation-api/navigate-event/navigate-destination-getState-back-forward.html b/...tform-tests/navigation-api/navigate-event/navigate-destination-getState-back-forward.html
@@ -19,7 +19,8 @@
       assert_equals(e.destination.key, "");
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
     });
     navigation.back();
   }), 0);

diff --git a/...-platform-tests/navigation-api/navigate-event/navigate-destination-getState-navigate.html b/...-platform-tests/navigation-api/navigate-event/navigate-destination-getState-navigate.html
@@ -16,7 +16,8 @@
       assert_equals(e.destination.key, "");
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
     });
     navigation.navigate("#foo", { state: navState });
   }, 0);

diff --git a/...eb-platform-tests/navigation-api/navigate-event/navigate-destination-getState-reload.html b/...eb-platform-tests/navigation-api/navigate-event/navigate-destination-getState-reload.html
@@ -16,7 +16,8 @@
       assert_equals(e.destination.key, "");
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
       e.intercept();
     });
     navigation.updateCurrentEntry({ state: navState });

diff --git a/...ests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-get.html b/...ests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-get.html
@@ -21,7 +21,8 @@
 
     // Because it's a GET, not a POST
     assert_equals(e.formData, null);
-    assert_equals(e.sourceElement, form);
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, form);
   });
   window.onload = t.step_func(() => form.submit());
 }, "<form> submission with GET method fires navigate event but with formData null");

diff --git a/...s/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-reload.html b/...s/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-reload.html
@@ -12,7 +12,8 @@
     iframe.contentWindow.navigation.onnavigate = t.step_func(e => {
       assert_equals(e.navigationType, "push");
       assert_not_equals(e.formData, null);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
 
       iframe.onload = t.step_func(() => {
         iframe.contentWindow.navigation.onnavigate = t.step_func_done(e => {

diff --git a/...imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-traverse.html b/...imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-traverse.html
@@ -12,7 +12,8 @@
     iframe.contentWindow.navigation.onnavigate = t.step_func(e => {
       assert_equals(e.navigationType, "push");
       assert_not_equals(e.formData, null);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
 
       iframe.onload = t.step_func(() => {
         // Avoid the replace behavior that occurs if you navigate during the load handler

diff --git a/...ted/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-userInitiated.html b/...ted/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-userInitiated.html
@@ -24,7 +24,8 @@
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_not_equals(e.formData, null);
-    assert_equals(e.sourceElement, submit);
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, submit);
   });
   window.onload = t.step_func(() => test_driver.click(submit));
 }, "<form> submission fires navigate event");

diff --git a/...orted/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-with-target.html b/...orted/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form-with-target.html
@@ -22,7 +22,8 @@
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
       assert_not_equals(e.formData, null);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
     });
     form.submit();
   });

diff --git a/LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form.html b/LayoutTests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-form.html
@@ -19,7 +19,8 @@
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_not_equals(e.formData, null);
-    assert_equals(e.sourceElement, form);
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, form);
   });
   window.onload = t.step_func(() => form.submit());
 }, "<form> submission fires navigate event");

diff --git a/...eb-platform-tests/navigation-api/navigate-event/navigate-history-back-after-fragment.html b/...eb-platform-tests/navigation-api/navigate-event/navigate-history-back-after-fragment.html
@@ -24,7 +24,8 @@
       assert_equals(e.destination.id, target_id);
         assert_equals(e.destination.index, start_index);
       assert_equals(e.formData, null);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
     });
 
     history.back();

diff --git a/...b-platform-tests/navigation-api/navigate-event/navigate-history-back-after-pushState.html b/...b-platform-tests/navigation-api/navigate-event/navigate-history-back-after-pushState.html
@@ -24,7 +24,8 @@
       assert_equals(e.destination.id, target_id);
       assert_equals(e.destination.index, start_index);
       assert_equals(e.formData, null);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
     });
 
     history.back();

diff --git a/...d/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-bfcache.html b/...d/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-bfcache.html
@@ -0,0 +1,24 @@
+<!doctype html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/utils.js"></script>
+<script src="/common/dispatcher/dispatcher.js"></script>
+<script src="/html/browsers/browsing-the-web/back-forward-cache/resources/helper.sub.js"></script>
+
+<script>
+runBfcacheTest({
+  targetOrigin: originSameOrigin,
+  funcBeforeBackNavigation: () => {
+    window.did_navigate = false;
+    navigation.onnavigate = () => window.did_navigate = true;
+  },
+  async funcAfterAssertion(pageA, pageB) {
+    // When `funcAfterAssertion` is called, we've already navigated to pageB,
+    // then gone back to pageA with bfcache. Now go forward to pageB so we can
+    // observe whether the navigate event fired.
+    await pageA.execute_script(() => history.forward());
+    await pageB.execute_script(waitForPageShow);
+    assert_true(await pageB.execute_script(() => window.did_navigate));
+  }
+}, "navigate event should fire when traversing to a bfcache hit");
+</script>
diff --git a/...eb-platform-tests/navigation-api/navigate-event/navigate-history-back-cross-document.html b/...eb-platform-tests/navigation-api/navigate-event/navigate-history-back-cross-document.html
@@ -23,7 +23,8 @@
         assert_equals(e.destination.index, 0);
         assert_equals(e.formData, null);
         assert_equals(e.info, undefined);
-        assert_equals(e.sourceElement, null);
+        // NavigateEvent sourceElement is still in development, so test whether it is available.
+        if ("sourceElement" in e) assert_equals(e.sourceElement, null);
       });
       assert_true(i.contentWindow.navigation.canGoBack);
       i.contentWindow.history.back();

diff --git a/.../imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-go-0.html b/.../imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-go-0.html
@@ -18,7 +18,8 @@
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
       assert_equals(e.formData, null);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
       e.preventDefault();
     });
 

diff --git a/...rted/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-pushState.html b/...rted/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-pushState.html
@@ -17,7 +17,8 @@
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_equals(e.formData, null);
-    assert_equals(e.sourceElement, null);
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, null);
     e.preventDefault();
     t.step_timeout(t.step_func_done(() => {
       assert_equals(location.hash, "");

diff --git a/...d/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-replaceState.html b/...d/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-replaceState.html
@@ -17,7 +17,8 @@
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_equals(e.formData, null);
-    assert_equals(e.sourceElement, null);
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, null);
     e.preventDefault();
     t.step_timeout(t.step_func_done(() => {
       assert_equals(location.hash, "");

diff --git a/...ported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-iframe-location.html b/...ported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-iframe-location.html
@@ -21,7 +21,8 @@
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
       assert_equals(e.formData, null);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
       e.preventDefault();
       t.step_timeout(t.step_func_done(() => assert_equals(location.hash, "")), 0);
     });

diff --git a/...ests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-location.html b/...ests/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-location.html
@@ -17,7 +17,8 @@
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_equals(e.formData, null);
-    assert_equals(e.sourceElement, null);
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, null);
   });
   location.href = "#1";
 }, "location API fires navigate event");

diff --git a/.../imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-meta-refresh.html b/.../imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-meta-refresh.html
@@ -20,7 +20,8 @@
       assert_equals(e.destination.id, "");
       assert_equals(e.destination.index, -1);
       assert_equals(e.formData, null);
-      assert_equals(e.sourceElement, null);
+      // NavigateEvent sourceElement is still in development, so test whether it is available.
+      if ("sourceElement" in e) assert_equals(e.sourceElement, null);
       e.preventDefault();
     });
   });

diff --git a/...platform-tests/navigation-api/navigate-event/navigate-navigation-back-cross-document.html b/...platform-tests/navigation-api/navigate-event/navigate-navigation-back-cross-document.html
@@ -25,7 +25,8 @@
         assert_equals(e.destination.index, 0);
         assert_equals(e.formData, null);
         assert_equals(e.info, "hi");
-        assert_equals(e.sourceElement, null);
+        // NavigateEvent sourceElement is still in development, so test whether it is available.
+        if ("sourceElement" in e) assert_equals(e.sourceElement, null);
       });
       i.contentWindow.onbeforeunload = () => beforeunload_called = true;
       assert_true(i.contentWindow.navigation.canGoBack);

diff --git a/...tests/navigation-api/navigate-event/navigate-navigation-back-same-document-in-iframe.html b/...tests/navigation-api/navigate-event/navigate-navigation-back-same-document-in-iframe.html
@@ -27,7 +27,8 @@
     assert_equals(e.destination.index, 0);
     assert_equals(e.formData, null);
     assert_equals(e.info, "hi");
-    assert_equals(e.sourceElement, null);
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, null);
   }
   await i.contentWindow.navigation.back({ info: "hi" }).finished;
 }, "navigate event for navigation.back() - same-document in an iframe");

diff --git a/...-platform-tests/navigation-api/navigate-event/navigate-navigation-back-same-document.html b/...-platform-tests/navigation-api/navigate-event/navigate-navigation-back-same-document.html
@@ -25,7 +25,8 @@
         assert_equals(e.formData, null);
         assert_equals(e.info, "hi");
         assert_not_equals(e.hasUAVisualTransition, undefined);
-        assert_equals(e.sourceElement, null);
+        // NavigateEvent sourceElement is still in development, so test whether it is available.
+        if ("sourceElement" in e) assert_equals(e.sourceElement, null);
       });
       assert_true(navigation.canGoBack);
       navigation.back({ info: "hi" });

diff --git a/...ed/w3c/web-platform-tests/navigation-api/navigate-event/navigate-navigation-navigate.html b/...ed/w3c/web-platform-tests/navigation-api/navigate-event/navigate-navigation-navigate.html
@@ -16,7 +16,8 @@
     assert_equals(e.destination.id, "");
     assert_equals(e.destination.index, -1);
     assert_equals(e.formData, null);
-    assert_equals(e.sourceElement, null);
+    // NavigateEvent sourceElement is still in development, so test whether it is available.
+    if ("sourceElement" in e) assert_equals(e.sourceElement, null);
   });
   navigation.navigate("#foo");
 }, "navigate event for navigation.navigate()");

diff --git a/...eb-platform-tests/navigation-api/navigate-event/navigate-svg-anchor-fragment-expected.txt b/...eb-platform-tests/navigation-api/navigate-event/navigate-svg-anchor-fragment-expected.txt
@@ -1,3 +1,3 @@
 
-FAIL <svg:a> click fires navigate event assert_equals: expected (object) Element node <a id="a" href="#1"></a> but got (undefined) undefined
+PASS <svg:a> click fires navigate event