From 7b9f57afbea4c7911f714e05258385b49cd8c087 Mon Sep 17 00:00:00 2001
From: Luca Casonato <hello@lcas.dev>
Date: Sat, 15 Jul 2023 18:02:29 +0200
Subject: [PATCH] Update WPT data and expectations (#859)

---
 url/tests/expected_failures.txt |   50 +-
 url/tests/setters_tests.json    |  491 ++++++++-
 url/tests/urltestdata.json      | 1660 +++++++++++++++++++++----------
 3 files changed, 1653 insertions(+), 548 deletions(-)

diff --git a/url/tests/expected_failures.txt b/url/tests/expected_failures.txt
index 229636de7..1c404a8b7 100644
--- a/url/tests/expected_failures.txt
+++ b/url/tests/expected_failures.txt
@@ -1,12 +1,12 @@
 </> against <file://h/C:/a/b>
-<file:\\\\//> against <about:blank>
-<file:\\\\\\\\> against <about:blank>
-<file:\\\\\\\\?fox> against <about:blank>
-<file:\\\\\\\\#guppy> against <about:blank>
-<file://spider///> against <about:blank>
-<file:\\\\localhost//> against <about:blank>
-<file://\\/localhost//cat> against <about:blank>
-<file://localhost//a//../..//> against <about:blank>
+<file:\\\\//>
+<file:\\\\\\\\>
+<file:\\\\\\\\?fox>
+<file:\\\\\\\\#guppy>
+<file://spider///>
+<file:\\\\localhost//>
+<file://\\/localhost//cat>
+<file://localhost//a//../..//>
 </////mouse> against <file:///elephant>
 <\\/localhost//pig> against <file://lion/>
 <//localhost//pig> against <file://lion/>
@@ -19,19 +19,35 @@
 <C|\n/> against <file://host/dir/file>
 <C|\\> against <file://host/dir/file>
 </c:/foo/bar> against <file://host/path>
-<file://example.net/C:/> against <about:blank>
-<file://1.2.3.4/C:/> against <about:blank>
-<file://[1::8]/C:/> against <about:blank>
+<file://example.net/C:/>
+<file://1.2.3.4/C:/>
+<file://[1::8]/C:/>
 <C|/> against <file://host/>
 </C:/> against <file://host/>
 <file:C:/> against <file://host/>
 <file:/C:/> against <file://host/>
-<file://localhost//a//../..//foo> against <about:blank>
-<file://localhost////foo> against <about:blank>
-<file:////foo> against <about:blank>
+<file://localhost//a//../..//foo>
+<file://localhost////foo>
+<file:////foo>
 <file:////one/two> against <file:///>
 <////one/two> against <file:///>
 <file:///.//> against <file:////>
-<file:.//p> against <about:blank>
-<file:/.//p> against <about:blank>
-<https://x/?#\u{0}y> against <about:blank>
+<file:.//p>
+<file:/.//p>
+<http://example.net/path> set hostname to <example.com:8080>
+<http://example.net:8080/path> set hostname to <example.com:>
+<non-spec:/.//p> set hostname to <h>
+<non-spec:/.//p> set hostname to <>
+<foo://somehost/some/path> set pathname to <>
+<foo:///some/path> set pathname to <>
+<http://example.net:8080/path> set port to <randomstring>
+<file:///var/log/system.log> set href to <http://0300.168.0xF0>
+<data:space  ?query#fragment> set search to <>
+<sc:space  ?query#fragment> set search to <>
+<file://monkey/> set pathname to <\\\\>
+<file:///unicorn> set pathname to <//\\/>
+<file:///unicorn> set pathname to <//monkey/..//>
+<non-spec:/> set pathname to </.//p>
+<non-spec:/> set pathname to </..//p>
+<non-spec:/> set pathname to <//p>
+<non-spec:/.//> set pathname to <p>
\ No newline at end of file
diff --git a/url/tests/setters_tests.json b/url/tests/setters_tests.json
index 6a922af92..2c6ebee64 100644
--- a/url/tests/setters_tests.json
+++ b/url/tests/setters_tests.json
@@ -1,6 +1,6 @@
 {
     "comment": [
-        "AS OF https://github.com/web-platform-tests/wpt/blob/09b34ae130cd946e111cd427d6bcf2d6f257aed8/url/resources/setters_tests.json, but only passing tests",
+        "# Pulled from https://github.com/web-platform-tests/wpt/blob/befe66343e5f21dc464c8c772c6d20695936714f/url/resources/setters_tests.json",
         "## Tests for setters of https://url.spec.whatwg.org/#urlutils-members",
         "",
         "This file contains a JSON object.",
@@ -120,11 +120,11 @@
             }
         },
         {
-            "href": "gopher://example.net:1234",
+            "href": "https://example.net:1234",
             "new_value": "file",
             "expected": {
-                "href": "gopher://example.net:1234",
-                "protocol": "gopher:"
+                "href": "https://example.net:1234/",
+                "protocol": "https:"
             }
         },
         {
@@ -146,7 +146,7 @@
         },
         {
             "href": "file:///test",
-            "new_value": "gopher",
+            "new_value": "https",
             "expected": {
                 "href": "file:///test",
                 "protocol": "file:"
@@ -270,6 +270,57 @@
                 "protocol": "https:",
                 "port": ""
             }
+        },
+        {
+            "comment": "Tab and newline are stripped",
+            "href": "http://test/",
+            "new_value": "h\u000D\u000Att\u0009ps",
+            "expected": {
+              "href": "https://test/",
+              "protocol": "https:",
+              "port": ""
+            }
+        },
+        {
+            "href": "http://test/",
+            "new_value": "https\u000D",
+            "expected": {
+              "href": "https://test/",
+              "protocol": "https:"
+            }
+        },
+        {
+            "comment": "Non-tab/newline C0 controls result in no-op",
+            "href": "http://test/",
+            "new_value": "https\u0000",
+            "expected": {
+              "href": "http://test/",
+              "protocol": "http:"
+            }
+        },
+        {
+            "href": "http://test/",
+            "new_value": "https\u000C",
+            "expected": {
+              "href": "http://test/",
+              "protocol": "http:"
+            }
+        },
+        {
+            "href": "http://test/",
+            "new_value": "https\u000E",
+            "expected": {
+              "href": "http://test/",
+              "protocol": "http:"
+            }
+        },
+        {
+            "href": "http://test/",
+            "new_value": "https\u0020",
+            "expected": {
+              "href": "http://test/",
+              "protocol": "http:"
+            }
         }
     ],
     "username": [
@@ -962,6 +1013,16 @@
                 "port": ""
             }
         },
+        {
+            "href": "file://hi/x",
+            "new_value": "",
+            "expected": {
+                "href": "file:///x",
+                "host": "",
+                "hostname": "",
+                "port": ""
+            }
+        },
         {
             "href": "sc://test@test/",
             "new_value": "",
@@ -981,6 +1042,62 @@
                 "hostname": "test",
                 "port": "12"
             }
+        },
+        {
+            "comment": "Leading / is not stripped",
+            "href": "http://example.com/",
+            "new_value": "///bad.com",
+            "expected": {
+                "href": "http://example.com/",
+                "host": "example.com",
+                "hostname": "example.com"
+            }
+        },
+        {
+            "comment": "Leading / is not stripped",
+            "href": "sc://example.com/",
+            "new_value": "///bad.com",
+            "expected": {
+                "href": "sc:///",
+                "host": "",
+                "hostname": ""
+            }
+        },
+        {
+            "href": "https://example.com/",
+            "new_value": "a%C2%ADb",
+            "expected": {
+                "href": "https://ab/",
+                "host": "ab",
+                "hostname": "ab"
+            }
+        },
+        {
+            "href": "https://example.com/",
+            "new_value": "\u00AD",
+            "expected": {
+                "href": "https://example.com/",
+                "host": "example.com",
+                "hostname": "example.com"
+            }
+        },
+        {
+            "href": "https://example.com/",
+            "new_value": "%C2%AD",
+            "expected": {
+                "href": "https://example.com/",
+                "host": "example.com",
+                "hostname": "example.com"
+            }
+        },
+        {
+            "href": "https://example.com/",
+            "new_value": "xn--",
+            "expected": {
+                "href": "https://example.com/",
+                "host": "example.com",
+                "hostname": "example.com"
+            }
         }
     ],
     "hostname": [
@@ -1144,24 +1261,24 @@
             }
         },
         {
-            "comment": "Stuff after a : delimiter is ignored",
+            "comment": ": delimiter invalidates entire value",
             "href": "http://example.net/path",
             "new_value": "example.com:8080",
             "expected": {
-                "href": "http://example.com/path",
-                "host": "example.com",
-                "hostname": "example.com",
+                "href": "http://example.net/path",
+                "host": "example.net",
+                "hostname": "example.net",
                 "port": ""
             }
         },
         {
-            "comment": "Stuff after a : delimiter is ignored",
+            "comment": ": delimiter invalidates entire value",
             "href": "http://example.net:8080/path",
             "new_value": "example.com:",
             "expected": {
-                "href": "http://example.com:8080/path",
-                "host": "example.com:8080",
-                "hostname": "example.com",
+                "href": "http://example.net:8080/path",
+                "host": "example.net:8080",
+                "hostname": "example.net",
                 "port": "8080"
             }
         },
@@ -1286,6 +1403,16 @@
                 "port": ""
             }
         },
+        {
+            "href": "file://hi/x",
+            "new_value": "",
+            "expected": {
+                "href": "file:///x",
+                "host": "",
+                "hostname": "",
+                "port": ""
+            }
+        },
         {
             "href": "sc://test@test/",
             "new_value": "",
@@ -1305,6 +1432,83 @@
                 "hostname": "test",
                 "port": "12"
             }
+        },
+        {
+            "comment": "Drop /. from path",
+            "href": "non-spec:/.//p",
+            "new_value": "h",
+            "expected": {
+                "href": "non-spec://h//p",
+                "host": "h",
+                "hostname": "h",
+                "pathname": "//p"
+            }
+        },
+        {
+            "href": "non-spec:/.//p",
+            "new_value": "",
+            "expected": {
+                "href": "non-spec:////p",
+                "host": "",
+                "hostname": "",
+                "pathname": "//p"
+            }
+        },
+        {
+            "comment": "Leading / is not stripped",
+            "href": "http://example.com/",
+            "new_value": "///bad.com",
+            "expected": {
+                "href": "http://example.com/",
+                "host": "example.com",
+                "hostname": "example.com"
+            }
+        },
+        {
+            "comment": "Leading / is not stripped",
+            "href": "sc://example.com/",
+            "new_value": "///bad.com",
+            "expected": {
+                "href": "sc:///",
+                "host": "",
+                "hostname": ""
+            }
+        },
+        {
+            "href": "https://example.com/",
+            "new_value": "a%C2%ADb",
+            "expected": {
+                "href": "https://ab/",
+                "host": "ab",
+                "hostname": "ab"
+            }
+        },
+        {
+            "href": "https://example.com/",
+            "new_value": "\u00AD",
+            "expected": {
+                "href": "https://example.com/",
+                "host": "example.com",
+                "hostname": "example.com"
+            }
+        },
+        {
+            "href": "https://example.com/",
+            "new_value": "%C2%AD",
+            "expected": {
+                "href": "https://example.com/",
+                "host": "example.com",
+                "hostname": "example.com"
+            }
+        },
+        {
+            "href": "https://example.com/",
+            "new_value": "xn--",
+            "expected": {
+                "href": "https://example.com/",
+                "host": "example.com",
+                "hostname": "example.com"
+            }
         }
     ],
     "port": [
@@ -1461,6 +1665,17 @@
                 "port": "8080"
             }
         },
+        {
+            "comment": "Setting port to a string that doesn't parse as a number",
+            "href": "http://example.net:8080/path",
+            "new_value": "randomstring",
+            "expected": {
+                "href": "http://example.net:8080/path",
+                "host": "example.net:8080",
+                "hostname": "example.net",
+                "port": "8080"
+            }
+        },
         {
             "comment": "Port numbers are 16 bit integers, overflowing is an error",
             "href": "non-special://example.net:8080/path",
@@ -1519,11 +1734,35 @@
                 "href": "javascript://x:12/",
                 "port": "12"
             }
+        },
+        {
+            "comment": "Leading u0009 on special scheme",
+            "href": "https://domain.com:443",
+            "new_value": "\u00098080",
+            "expected": {
+                "port": "8080"
+            }
+        },
+        {
+            "comment": "Leading u0009 on non-special scheme",
+            "href": "wpt++://domain.com:443",
+            "new_value": "\u00098080",
+            "expected": {
+                "port": "8080"
+            }
+        },
+        {
+            "comment": "Should use all ascii prefixed characters as port",
+            "href": "https://www.google.com:4343",
+            "new_value": "4wpt",
+            "expected": {
+                "port": "4"
+            }
         }
     ],
     "pathname": [
         {
-            "comment": "Cannot-be-a-base don’t have a path",
+            "comment": "Opaque paths cannot be set",
             "href": "mailto:me@example.net",
             "new_value": "/foo",
             "expected": {
@@ -1531,6 +1770,67 @@
                 "pathname": "me@example.net"
             }
         },
+        {
+            "href": "data:original",
+            "new_value": "new value",
+            "expected": {
+                "href": "data:original",
+                "pathname": "original"
+            }
+        },
+        {
+            "href": "sc:original",
+            "new_value": "new value",
+            "expected": {
+                "href": "sc:original",
+                "pathname": "original"
+            }
+        },
+        {
+            "comment": "Special URLs cannot have their paths erased",
+            "href": "file:///some/path",
+            "new_value": "",
+            "expected": {
+                "href": "file:///",
+                "pathname": "/"
+            }
+        },
+        {
+            "comment": "Non-special URLs can have their paths erased",
+            "href": "foo://somehost/some/path",
+            "new_value": "",
+            "expected": {
+                "href": "foo://somehost",
+                "pathname": ""
+            }
+        },
+        {
+            "comment": "Non-special URLs with an empty host can have their paths erased",
+            "href": "foo:///some/path",
+            "new_value": "",
+            "expected": {
+                "href": "foo://",
+                "pathname": ""
+            }
+        },
+        {
+            "comment": "Path-only URLs cannot have their paths erased",
+            "href": "foo:/some/path",
+            "new_value": "",
+            "expected": {
+                "href": "foo:/",
+                "pathname": "/"
+            }
+        },
+        {
+            "comment": "Path-only URLs always have an initial slash",
+            "href": "foo:/some/path",
+            "new_value": "test",
+            "expected": {
+                "href": "foo:/test",
+                "pathname": "/test"
+            }
+        },
         {
             "href": "unix:/run/foo.socket?timeout=10",
             "new_value": "/var/log/../run/bar.socket",
@@ -1627,13 +1927,31 @@
                 "pathname": "/%23"
             }
         },
+        {
+            "comment": "? doesn't mess up encoding",
+            "href": "http://example.net",
+            "new_value": "/?é",
+            "expected": {
+                "href": "http://example.net/%3F%C3%A9",
+                "pathname": "/%3F%C3%A9"
+            }
+        },
+        {
+            "comment": "# doesn't mess up encoding",
+            "href": "http://example.net",
+            "new_value": "/#é",
+            "expected": {
+                "href": "http://example.net/%23%C3%A9",
+                "pathname": "/%23%C3%A9"
+            }
+        },
         {
             "comment": "File URLs and (back)slashes",
             "href": "file://monkey/",
             "new_value": "\\\\",
             "expected": {
-                "href": "file://monkey/",
-                "pathname": "/"
+                "href": "file://monkey//",
+                "pathname": "//"
             }
         },
         {
@@ -1641,8 +1959,8 @@
             "href": "file:///unicorn",
             "new_value": "//\\/",
             "expected": {
-                "href": "file:///",
-                "pathname": "/"
+                "href": "file://////",
+                "pathname": "////"
             }
         },
         {
@@ -1650,8 +1968,59 @@
             "href": "file:///unicorn",
             "new_value": "//monkey/..//",
             "expected": {
-                "href": "file:///",
-                "pathname": "/"
+                "href": "file://///",
+                "pathname": "///"
+            }
+        },
+        {
+            "comment": "Serialize /. in path",
+            "href": "non-spec:/",
+            "new_value": "/.//p",
+            "expected": {
+                "href": "non-spec:/.//p",
+                "pathname": "//p"
+            }
+        },
+        {
+            "href": "non-spec:/",
+            "new_value": "/..//p",
+            "expected": {
+                "href": "non-spec:/.//p",
+                "pathname": "//p"
+            }
+        },
+        {
+            "href": "non-spec:/",
+            "new_value": "//p",
+            "expected": {
+                "href": "non-spec:/.//p",
+                "pathname": "//p"
+            }
+        },
+        {
+            "comment": "Drop /. from path",
+            "href": "non-spec:/.//",
+            "new_value": "p",
+            "expected": {
+                "href": "non-spec:/p",
+                "pathname": "/p"
+            }
+        },
+        {
+            "comment": "Non-special URLs with non-opaque paths percent-encode U+0020",
+            "href": "data:/nospace",
+            "new_value": "space ",
+            "expected": {
+                "href": "data:/space%20",
+                "pathname": "/space%20"
+            }
+        },
+        {
+            "href": "sc:/nospace",
+            "new_value": "space ",
+            "expected": {
+                "href": "sc:/space%20",
+                "pathname": "/space%20"
             }
         },
         {
@@ -1756,6 +2125,42 @@
                 "search": "?%c3%89t%C3%A9"
             }
         },
+        {
+            "comment": "Drop trailing spaces from trailing opaque paths",
+            "href": "data:space ?query",
+            "new_value": "",
+            "expected": {
+                "href": "data:space",
+                "pathname": "space",
+                "search": ""
+            }
+        },
+        {
+            "href": "sc:space ?query",
+            "new_value": "",
+            "expected": {
+                "href": "sc:space",
+                "pathname": "space",
+                "search": ""
+            }
+        },
+        {
+            "comment": "Do not drop trailing spaces from non-trailing opaque paths",
+            "href": "data:space  ?query#fragment",
+            "new_value": "",
+            "expected": {
+                "href": "data:space  #fragment",
+                "search": ""
+            }
+        },
+        {
+            "href": "sc:space  ?query#fragment",
+            "new_value": "",
+            "expected": {
+                "href": "sc:space  #fragment",
+                "search": ""
+            }
+        },
         {
             "comment": "Trailing space should be encoded",
             "href": "http://example.net",
@@ -1908,6 +2313,42 @@
                 "hash": "#castle"
             }
         },
+        {
+            "comment": "Drop trailing spaces from trailing opaque paths",
+            "href": "data:space                                                                                                                                  #fragment",
+            "new_value": "",
+            "expected": {
+                "href": "data:space",
+                "pathname": "space",
+                "hash": ""
+            }
+        },
+        {
+            "href": "sc:space    #fragment",
+            "new_value": "",
+            "expected": {
+                "href": "sc:space",
+                "pathname": "space",
+                "hash": ""
+            }
+        },
+        {
+            "comment": "Do not drop trailing spaces from non-trailing opaque paths",
+            "href": "data:space  ?query#fragment",
+            "new_value": "",
+            "expected": {
+                "href": "data:space  ?query",
+                "hash": ""
+            }
+        },
+        {
+            "href": "sc:space  ?query#fragment",
+            "new_value": "",
+            "expected": {
+                "href": "sc:space  ?query",
+                "hash": ""
+            }
+        },
         {
             "comment": "Trailing space should be encoded",
             "href": "http://example.net",
@@ -1926,5 +2367,15 @@
                 "hash": "#%00"
             }
         }
+    ],
+    "href": [
+        {
+            "href": "file:///var/log/system.log",
+            "new_value": "http://0300.168.0xF0",
+            "expected": {
+                "href": "http://192.168.0.240/",
+                "protocol": "http:"
+            }
+        }
     ]
 }
diff --git a/url/tests/urltestdata.json b/url/tests/urltestdata.json
index 75a4bc2fd..1e61729d1 100644
--- a/url/tests/urltestdata.json
+++ b/url/tests/urltestdata.json
@@ -1,5 +1,5 @@
 [
-  "# Based on http://trac.webkit.org/browser/trunk/LayoutTests/fast/url/script-tests/segments.js",
+  "# Pulled from https://github.com/web-platform-tests/wpt/blob/befe66343e5f21dc464c8c772c6d20695936714f/url/resources/urltestdata.json",
   {
     "input": "http://example\t.\norg",
     "base": "http://example.org/foo/bar",
@@ -32,7 +32,7 @@
   },
   {
     "input": "https://test:@test",
-    "base": "about:blank",
+    "base": null,
     "href": "https://test@test/",
     "origin": "https://test",
     "protocol": "https:",
@@ -47,7 +47,7 @@
   },
   {
     "input": "https://:@test",
-    "base": "about:blank",
+    "base": null,
     "href": "https://test/",
     "origin": "https://test",
     "protocol": "https:",
@@ -62,7 +62,7 @@
   },
   {
     "input": "non-special://test:@test/x",
-    "base": "about:blank",
+    "base": null,
     "href": "non-special://test@test/x",
     "origin": "null",
     "protocol": "non-special:",
@@ -77,7 +77,7 @@
   },
   {
     "input": "non-special://:@test/x",
-    "base": "about:blank",
+    "base": null,
     "href": "non-special://test/x",
     "origin": "null",
     "protocol": "non-special:",
@@ -167,7 +167,7 @@
   },
   {
     "input": "lolscheme:x x#x x",
-    "base": "about:blank",
+    "base": null,
     "href": "lolscheme:x x#x%20x",
     "protocol": "lolscheme:",
     "username": "",
@@ -1075,22 +1075,22 @@
   },
   {
     "input": "file://example:1/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "file://example:test/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "file://example%/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "file://[example]/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
@@ -1754,7 +1754,7 @@
   "# Based on http://trac.webkit.org/browser/trunk/LayoutTests/fast/url/script-tests/path.js",
   {
     "input": "http://example.com/././foo",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1769,7 +1769,7 @@
   },
   {
     "input": "http://example.com/./.foo",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/.foo",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1784,7 +1784,7 @@
   },
   {
     "input": "http://example.com/foo/.",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo/",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1799,7 +1799,7 @@
   },
   {
     "input": "http://example.com/foo/./",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo/",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1814,7 +1814,7 @@
   },
   {
     "input": "http://example.com/foo/bar/..",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo/",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1829,7 +1829,7 @@
   },
   {
     "input": "http://example.com/foo/bar/../",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo/",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1844,7 +1844,7 @@
   },
   {
     "input": "http://example.com/foo/..bar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo/..bar",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1859,7 +1859,7 @@
   },
   {
     "input": "http://example.com/foo/bar/../ton",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo/ton",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1874,7 +1874,7 @@
   },
   {
     "input": "http://example.com/foo/bar/../ton/../../a",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/a",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1889,7 +1889,7 @@
   },
   {
     "input": "http://example.com/foo/../../..",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1904,7 +1904,7 @@
   },
   {
     "input": "http://example.com/foo/../../../ton",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/ton",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1919,7 +1919,7 @@
   },
   {
     "input": "http://example.com/foo/%2e",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo/",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1934,7 +1934,7 @@
   },
   {
     "input": "http://example.com/foo/%2e%2",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo/%2e%2",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1949,7 +1949,7 @@
   },
   {
     "input": "http://example.com/foo/%2e./%2e%2e/.%2e/%2e.bar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/%2e.bar",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1964,7 +1964,7 @@
   },
   {
     "input": "http://example.com////../..",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com//",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1979,7 +1979,7 @@
   },
   {
     "input": "http://example.com/foo/bar//../..",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo/",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -1994,7 +1994,7 @@
   },
   {
     "input": "http://example.com/foo/bar//..",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo/bar/",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2009,7 +2009,7 @@
   },
   {
     "input": "http://example.com/foo",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2024,7 +2024,7 @@
   },
   {
     "input": "http://example.com/%20foo",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/%20foo",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2039,7 +2039,7 @@
   },
   {
     "input": "http://example.com/foo%",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo%",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2054,7 +2054,7 @@
   },
   {
     "input": "http://example.com/foo%2",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo%2",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2069,7 +2069,7 @@
   },
   {
     "input": "http://example.com/foo%2zbar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo%2zbar",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2084,7 +2084,7 @@
   },
   {
     "input": "http://example.com/foo%2©zbar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo%2%C3%82%C2%A9zbar",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2099,7 +2099,7 @@
   },
   {
     "input": "http://example.com/foo%41%7a",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo%41%7a",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2114,7 +2114,7 @@
   },
   {
     "input": "http://example.com/foo\t\u0091%91",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo%C2%91%91",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2129,7 +2129,7 @@
   },
   {
     "input": "http://example.com/foo%00%51",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foo%00%51",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2144,7 +2144,7 @@
   },
   {
     "input": "http://example.com/(%28:%3A%29)",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/(%28:%3A%29)",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2159,7 +2159,7 @@
   },
   {
     "input": "http://example.com/%3A%3a%3C%3c",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/%3A%3a%3C%3c",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2174,7 +2174,7 @@
   },
   {
     "input": "http://example.com/foo\tbar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/foobar",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2189,7 +2189,7 @@
   },
   {
     "input": "http://example.com\\\\foo\\\\bar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com//foo//bar",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2204,7 +2204,7 @@
   },
   {
     "input": "http://example.com/%7Ffp3%3Eju%3Dduvgw%3Dd",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/%7Ffp3%3Eju%3Dduvgw%3Dd",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2219,7 +2219,7 @@
   },
   {
     "input": "http://example.com/@asdf%40",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/@asdf%40",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2234,7 +2234,7 @@
   },
   {
     "input": "http://example.com/你好你好",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/%E4%BD%A0%E5%A5%BD%E4%BD%A0%E5%A5%BD",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2249,7 +2249,7 @@
   },
   {
     "input": "http://example.com/‥/foo",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/%E2%80%A5/foo",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2264,7 +2264,7 @@
   },
   {
     "input": "http://example.com//foo",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/%EF%BB%BF/foo",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2279,7 +2279,7 @@
   },
   {
     "input": "http://example.com/‮/foo/‭/bar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/%E2%80%AE/foo/%E2%80%AD/bar",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2295,7 +2295,7 @@
   "# Based on http://trac.webkit.org/browser/trunk/LayoutTests/fast/url/script-tests/relative.js",
   {
     "input": "http://www.google.com/foo?bar=baz#",
-    "base": "about:blank",
+    "base": null,
     "href": "http://www.google.com/foo?bar=baz#",
     "origin": "http://www.google.com",
     "protocol": "http:",
@@ -2310,7 +2310,7 @@
   },
   {
     "input": "http://www.google.com/foo?bar=baz# »",
-    "base": "about:blank",
+    "base": null,
     "href": "http://www.google.com/foo?bar=baz#%20%C2%BB",
     "origin": "http://www.google.com",
     "protocol": "http:",
@@ -2325,7 +2325,7 @@
   },
   {
     "input": "data:test# »",
-    "base": "about:blank",
+    "base": null,
     "href": "data:test#%20%C2%BB",
     "origin": "null",
     "protocol": "data:",
@@ -2340,7 +2340,7 @@
   },
   {
     "input": "http://www.google.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://www.google.com/",
     "origin": "http://www.google.com",
     "protocol": "http:",
@@ -2355,7 +2355,7 @@
   },
   {
     "input": "http://192.0x00A80001",
-    "base": "about:blank",
+    "base": null,
     "href": "http://192.168.0.1/",
     "origin": "http://192.168.0.1",
     "protocol": "http:",
@@ -2370,7 +2370,7 @@
   },
   {
     "input": "http://www/foo%2Ehtml",
-    "base": "about:blank",
+    "base": null,
     "href": "http://www/foo%2Ehtml",
     "origin": "http://www",
     "protocol": "http:",
@@ -2385,7 +2385,7 @@
   },
   {
     "input": "http://www/foo/%2E/html",
-    "base": "about:blank",
+    "base": null,
     "href": "http://www/foo/html",
     "origin": "http://www",
     "protocol": "http:",
@@ -2400,12 +2400,12 @@
   },
   {
     "input": "http://user:pass@/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://%25DOMAIN:foobar@foodomain.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "http://%25DOMAIN:foobar@foodomain.com/",
     "origin": "http://foodomain.com",
     "protocol": "http:",
@@ -2420,7 +2420,7 @@
   },
   {
     "input": "http:\\\\www.google.com\\foo",
-    "base": "about:blank",
+    "base": null,
     "href": "http://www.google.com/foo",
     "origin": "http://www.google.com",
     "protocol": "http:",
@@ -2435,7 +2435,7 @@
   },
   {
     "input": "http://foo:80/",
-    "base": "about:blank",
+    "base": null,
     "href": "http://foo/",
     "origin": "http://foo",
     "protocol": "http:",
@@ -2450,7 +2450,7 @@
   },
   {
     "input": "http://foo:81/",
-    "base": "about:blank",
+    "base": null,
     "href": "http://foo:81/",
     "origin": "http://foo:81",
     "protocol": "http:",
@@ -2465,7 +2465,7 @@
   },
   {
     "input": "httpa://foo:80/",
-    "base": "about:blank",
+    "base": null,
     "href": "httpa://foo:80/",
     "origin": "null",
     "protocol": "httpa:",
@@ -2480,12 +2480,12 @@
   },
   {
     "input": "http://foo:-80/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://foo:443/",
-    "base": "about:blank",
+    "base": null,
     "href": "https://foo/",
     "origin": "https://foo",
     "protocol": "https:",
@@ -2500,7 +2500,7 @@
   },
   {
     "input": "https://foo:80/",
-    "base": "about:blank",
+    "base": null,
     "href": "https://foo:80/",
     "origin": "https://foo:80",
     "protocol": "https:",
@@ -2515,7 +2515,7 @@
   },
   {
     "input": "ftp://foo:21/",
-    "base": "about:blank",
+    "base": null,
     "href": "ftp://foo/",
     "origin": "ftp://foo",
     "protocol": "ftp:",
@@ -2530,7 +2530,7 @@
   },
   {
     "input": "ftp://foo:80/",
-    "base": "about:blank",
+    "base": null,
     "href": "ftp://foo:80/",
     "origin": "ftp://foo:80",
     "protocol": "ftp:",
@@ -2545,7 +2545,7 @@
   },
   {
     "input": "gopher://foo:70/",
-    "base": "about:blank",
+    "base": null,
     "href": "gopher://foo:70/",
     "origin": "null",
     "protocol": "gopher:",
@@ -2560,7 +2560,7 @@
   },
   {
     "input": "gopher://foo:443/",
-    "base": "about:blank",
+    "base": null,
     "href": "gopher://foo:443/",
     "origin": "null",
     "protocol": "gopher:",
@@ -2575,7 +2575,7 @@
   },
   {
     "input": "ws://foo:80/",
-    "base": "about:blank",
+    "base": null,
     "href": "ws://foo/",
     "origin": "ws://foo",
     "protocol": "ws:",
@@ -2590,7 +2590,7 @@
   },
   {
     "input": "ws://foo:81/",
-    "base": "about:blank",
+    "base": null,
     "href": "ws://foo:81/",
     "origin": "ws://foo:81",
     "protocol": "ws:",
@@ -2605,7 +2605,7 @@
   },
   {
     "input": "ws://foo:443/",
-    "base": "about:blank",
+    "base": null,
     "href": "ws://foo:443/",
     "origin": "ws://foo:443",
     "protocol": "ws:",
@@ -2620,7 +2620,7 @@
   },
   {
     "input": "ws://foo:815/",
-    "base": "about:blank",
+    "base": null,
     "href": "ws://foo:815/",
     "origin": "ws://foo:815",
     "protocol": "ws:",
@@ -2635,7 +2635,7 @@
   },
   {
     "input": "wss://foo:80/",
-    "base": "about:blank",
+    "base": null,
     "href": "wss://foo:80/",
     "origin": "wss://foo:80",
     "protocol": "wss:",
@@ -2650,7 +2650,7 @@
   },
   {
     "input": "wss://foo:81/",
-    "base": "about:blank",
+    "base": null,
     "href": "wss://foo:81/",
     "origin": "wss://foo:81",
     "protocol": "wss:",
@@ -2665,7 +2665,7 @@
   },
   {
     "input": "wss://foo:443/",
-    "base": "about:blank",
+    "base": null,
     "href": "wss://foo/",
     "origin": "wss://foo",
     "protocol": "wss:",
@@ -2680,7 +2680,7 @@
   },
   {
     "input": "wss://foo:815/",
-    "base": "about:blank",
+    "base": null,
     "href": "wss://foo:815/",
     "origin": "wss://foo:815",
     "protocol": "wss:",
@@ -2695,7 +2695,7 @@
   },
   {
     "input": "http:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2710,7 +2710,7 @@
   },
   {
     "input": "ftp:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "ftp://example.com/",
     "origin": "ftp://example.com",
     "protocol": "ftp:",
@@ -2725,7 +2725,7 @@
   },
   {
     "input": "https:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "https://example.com/",
     "origin": "https://example.com",
     "protocol": "https:",
@@ -2740,7 +2740,7 @@
   },
   {
     "input": "madeupscheme:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "madeupscheme:/example.com/",
     "origin": "null",
     "protocol": "madeupscheme:",
@@ -2755,7 +2755,7 @@
   },
   {
     "input": "file:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///example.com/",
     "protocol": "file:",
     "username": "",
@@ -2769,7 +2769,7 @@
   },
   {
     "input": "ftps:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "ftps:/example.com/",
     "origin": "null",
     "protocol": "ftps:",
@@ -2784,7 +2784,7 @@
   },
   {
     "input": "gopher:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "gopher:/example.com/",
     "origin": "null",
     "protocol": "gopher:",
@@ -2799,7 +2799,7 @@
   },
   {
     "input": "ws:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "ws://example.com/",
     "origin": "ws://example.com",
     "protocol": "ws:",
@@ -2814,7 +2814,7 @@
   },
   {
     "input": "wss:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "wss://example.com/",
     "origin": "wss://example.com",
     "protocol": "wss:",
@@ -2829,7 +2829,7 @@
   },
   {
     "input": "data:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "data:/example.com/",
     "origin": "null",
     "protocol": "data:",
@@ -2844,7 +2844,7 @@
   },
   {
     "input": "javascript:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "javascript:/example.com/",
     "origin": "null",
     "protocol": "javascript:",
@@ -2859,7 +2859,7 @@
   },
   {
     "input": "mailto:/example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "mailto:/example.com/",
     "origin": "null",
     "protocol": "mailto:",
@@ -2874,7 +2874,7 @@
   },
   {
     "input": "http:example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -2889,7 +2889,7 @@
   },
   {
     "input": "ftp:example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "ftp://example.com/",
     "origin": "ftp://example.com",
     "protocol": "ftp:",
@@ -2904,7 +2904,7 @@
   },
   {
     "input": "https:example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "https://example.com/",
     "origin": "https://example.com",
     "protocol": "https:",
@@ -2919,7 +2919,7 @@
   },
   {
     "input": "madeupscheme:example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "madeupscheme:example.com/",
     "origin": "null",
     "protocol": "madeupscheme:",
@@ -2934,7 +2934,7 @@
   },
   {
     "input": "ftps:example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "ftps:example.com/",
     "origin": "null",
     "protocol": "ftps:",
@@ -2949,7 +2949,7 @@
   },
   {
     "input": "gopher:example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "gopher:example.com/",
     "origin": "null",
     "protocol": "gopher:",
@@ -2964,7 +2964,7 @@
   },
   {
     "input": "ws:example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "ws://example.com/",
     "origin": "ws://example.com",
     "protocol": "ws:",
@@ -2979,7 +2979,7 @@
   },
   {
     "input": "wss:example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "wss://example.com/",
     "origin": "wss://example.com",
     "protocol": "wss:",
@@ -2994,7 +2994,7 @@
   },
   {
     "input": "data:example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "data:example.com/",
     "origin": "null",
     "protocol": "data:",
@@ -3009,7 +3009,7 @@
   },
   {
     "input": "javascript:example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "javascript:example.com/",
     "origin": "null",
     "protocol": "javascript:",
@@ -3024,7 +3024,7 @@
   },
   {
     "input": "mailto:example.com/",
-    "base": "about:blank",
+    "base": null,
     "href": "mailto:example.com/",
     "origin": "null",
     "protocol": "mailto:",
@@ -3040,7 +3040,7 @@
   "# Based on http://trac.webkit.org/browser/trunk/LayoutTests/fast/url/segments-userinfo-vs-host.html",
   {
     "input": "http:@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3055,7 +3055,7 @@
   },
   {
     "input": "http:/@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3070,7 +3070,7 @@
   },
   {
     "input": "http://@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3085,7 +3085,7 @@
   },
   {
     "input": "http:a:b@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://a:b@www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3100,7 +3100,7 @@
   },
   {
     "input": "http:/a:b@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://a:b@www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3115,7 +3115,7 @@
   },
   {
     "input": "http://a:b@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://a:b@www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3130,7 +3130,7 @@
   },
   {
     "input": "http://@pple.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://pple.com/",
     "origin": "http://pple.com",
     "protocol": "http:",
@@ -3145,7 +3145,7 @@
   },
   {
     "input": "http::b@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://:b@www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3160,7 +3160,7 @@
   },
   {
     "input": "http:/:b@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://:b@www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3175,7 +3175,7 @@
   },
   {
     "input": "http://:b@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://:b@www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3190,64 +3190,64 @@
   },
   {
     "input": "http:/:@/www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "http://user@/www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http:@/www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "http:/@/www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "http://@/www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https:@/www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "http:a:b@/www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "http:/a:b@/www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "http://a:b@/www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http::@/www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "http:a:@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://a@www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3262,7 +3262,7 @@
   },
   {
     "input": "http:/a:@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://a@www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3277,7 +3277,7 @@
   },
   {
     "input": "http://a:@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://a@www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3292,7 +3292,7 @@
   },
   {
     "input": "http://www.@pple.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://www.@pple.com/",
     "origin": "http://pple.com",
     "protocol": "http:",
@@ -3307,24 +3307,24 @@
   },
   {
     "input": "http:@:www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "http:/@:www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "http://@:www.example.com",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://:@www.example.com",
-    "base": "about:blank",
+    "base": null,
     "href": "http://www.example.com/",
     "origin": "http://www.example.com",
     "protocol": "http:",
@@ -3622,7 +3622,7 @@
   "Leading and trailing C0 control or space",
   {
     "input": "\u0000\u001b\u0004\u0012 http://example.com/\u001f \u000d ",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.com/",
     "origin": "http://example.com",
     "protocol": "http:",
@@ -3666,17 +3666,17 @@
   "U+FFFD",
   {
     "input": "https://\ufffd",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://%EF%BF%BD",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://x/\ufffd?\ufffd#\ufffd",
-    "base": "about:blank",
+    "base": null,
     "href": "https://x/%EF%BF%BD?%EF%BF%BD#%EF%BF%BD",
     "origin": "https://x",
     "protocol": "https:",
@@ -3692,33 +3692,33 @@
   "Domain is ASCII, but a label is invalid IDNA",
   {
     "input": "http://a.b.c.xn--pokxncvks",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://10.0.0.xn--pokxncvks",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "IDNA labels should be matched case-insensitively",
   {
     "input": "http://a.b.c.XN--pokxncvks",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a.b.c.Xn--pokxncvks",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://10.0.0.XN--pokxncvks",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://10.0.0.xN--pokxncvks",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "Test name prepping, fullwidth input should be converted to ASCII and NOT IDN-ized. This is 'Go' in fullwidth UTF-8/UTF-16.",
@@ -3777,7 +3777,7 @@
   },
   {
     "input": "https://faß.ExAmPlE/",
-    "base": "about:blank",
+    "base": null,
     "href": "https://xn--fa-hia.example/",
     "origin": "https://xn--fa-hia.example",
     "protocol": "https:",
@@ -3792,7 +3792,7 @@
   },
   {
     "input": "sc://faß.ExAmPlE/",
-    "base": "about:blank",
+    "base": null,
     "href": "sc://fa%C3%9F.ExAmPlE/",
     "origin": "null",
     "protocol": "sc:",
@@ -3872,7 +3872,7 @@
   },
   {
     "input": "https://x x:12",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "Fullwidth and escaped UTF-8 fullwidth should still be treated as IP",
@@ -3894,7 +3894,7 @@
   "Domains with empty labels",
   {
     "input": "http://./",
-    "base": "about:blank",
+    "base": null,
     "href": "http://./",
     "origin": "http://.",
     "protocol": "http:",
@@ -3909,7 +3909,7 @@
   },
   {
     "input": "http://../",
-    "base": "about:blank",
+    "base": null,
     "href": "http://../",
     "origin": "http://..",
     "protocol": "http:",
@@ -3925,7 +3925,7 @@
   "Non-special domains with empty labels",
   {
     "input": "h://.",
-    "base": "about:blank",
+    "base": null,
     "href": "h://.",
     "origin": "null",
     "protocol": "h:",
@@ -3941,7 +3941,7 @@
   "Broken IPv6",
   {
     "input": "http://[www.google.com]/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
@@ -4066,6 +4066,21 @@
     "search": "",
     "hash": "#x"
   },
+  {
+    "input": "#x:y",
+    "base": "about:blank",
+    "href": "about:blank#x:y",
+    "origin": "null",
+    "protocol": "about:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "blank",
+    "search": "",
+    "hash": "#x:y"
+  },
   {
     "input": "#",
     "base": "test:test?test",
@@ -4131,7 +4146,7 @@
   "byte is ' and url is special",
   {
     "input": "http://host/?'",
-    "base": "about:blank",
+    "base": null,
     "href": "http://host/?%27",
     "origin": "http://host",
     "protocol": "http:",
@@ -4146,7 +4161,7 @@
   },
   {
     "input": "notspecial://host/?'",
-    "base": "about:blank",
+    "base": null,
     "href": "notspecial://host/?'",
     "origin": "null",
     "protocol": "notspecial:",
@@ -4504,7 +4519,7 @@
   "# make sure that relative URL logic works on known typically non-relative schemes too",
   {
     "input": "about:/../",
-    "base": "about:blank",
+    "base": null,
     "href": "about:/",
     "origin": "null",
     "protocol": "about:",
@@ -4519,7 +4534,7 @@
   },
   {
     "input": "data:/../",
-    "base": "about:blank",
+    "base": null,
     "href": "data:/",
     "origin": "null",
     "protocol": "data:",
@@ -4534,7 +4549,7 @@
   },
   {
     "input": "javascript:/../",
-    "base": "about:blank",
+    "base": null,
     "href": "javascript:/",
     "origin": "null",
     "protocol": "javascript:",
@@ -4549,7 +4564,7 @@
   },
   {
     "input": "mailto:/../",
-    "base": "about:blank",
+    "base": null,
     "href": "mailto:/",
     "origin": "null",
     "protocol": "mailto:",
@@ -4565,7 +4580,7 @@
   "# unknown schemes and their hosts",
   {
     "input": "sc://ñ.test/",
-    "base": "about:blank",
+    "base": null,
     "href": "sc://%C3%B1.test/",
     "origin": "null",
     "protocol": "sc:",
@@ -4580,7 +4595,7 @@
   },
   {
     "input": "sc://%/",
-    "base": "about:blank",
+    "base": null,
     "href": "sc://%/",
     "protocol": "sc:",
     "username": "",
@@ -4594,22 +4609,22 @@
   },
   {
     "input": "sc://@/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "sc://te@s:t@/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "sc://:/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "sc://:12/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
@@ -4630,7 +4645,7 @@
   "# unknown schemes and backslashes",
   {
     "input": "sc:\\../",
-    "base": "about:blank",
+    "base": null,
     "href": "sc:\\../",
     "origin": "null",
     "protocol": "sc:",
@@ -4646,7 +4661,7 @@
   "# unknown scheme with path looking like a password",
   {
     "input": "sc::a@example.net",
-    "base": "about:blank",
+    "base": null,
     "href": "sc::a@example.net",
     "origin": "null",
     "protocol": "sc:",
@@ -4662,7 +4677,7 @@
   "# unknown scheme with bogus percent-encoding",
   {
     "input": "wow:%NBD",
-    "base": "about:blank",
+    "base": null,
     "href": "wow:%NBD",
     "origin": "null",
     "protocol": "wow:",
@@ -4677,7 +4692,7 @@
   },
   {
     "input": "wow:%1G",
-    "base": "about:blank",
+    "base": null,
     "href": "wow:%1G",
     "origin": "null",
     "protocol": "wow:",
@@ -4693,7 +4708,7 @@
   "# unknown scheme with non-URL characters",
   {
     "input": "wow:\uFFFF",
-    "base": "about:blank",
+    "base": null,
     "href": "wow:%EF%BF%BF",
     "origin": "null",
     "protocol": "wow:",
@@ -4709,88 +4724,88 @@
   "Forbidden host code points",
   {
     "input": "sc://a\u0000b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "sc://a b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "sc://a<b",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "sc://a>b",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "sc://a[b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "sc://a\\b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "sc://a]b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "sc://a^b",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "sc://a|b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "Forbidden host codepoints: tabs and newlines are removed during preprocessing",
   {
     "input": "foo://ho\u0009st/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
-    "href": "foo://host/",
+    "href":"foo://host/",
     "password": "",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "foo:",
     "search": "",
     "username": ""
   },
   {
     "input": "foo://ho\u000Ast/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
-    "href": "foo://host/",
+    "href":"foo://host/",
     "password": "",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "foo:",
     "search": "",
     "username": ""
   },
   {
     "input": "foo://ho\u000Dst/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
-    "href": "foo://host/",
+    "href":"foo://host/",
     "password": "",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "foo:",
     "search": "",
     "username": ""
@@ -4798,233 +4813,233 @@
   "Forbidden domain code-points",
   {
     "input": "http://a\u0000b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0001b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0002b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0003b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0004b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0005b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0006b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0007b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0008b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u000Bb/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u000Cb/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u000Eb/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u000Fb/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0010b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0011b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0012b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0013b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0014b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0015b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0016b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0017b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0018b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u0019b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u001Ab/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u001Bb/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u001Cb/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u001Db/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u001Eb/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u001Fb/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a%b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a<b",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a>b",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a[b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a]b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a^b",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a|b/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://a\u007Fb/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "Forbidden domain codepoints: tabs and newlines are removed during preprocessing",
   {
     "input": "http://ho\u0009st/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
-    "href": "http://host/",
+    "href":"http://host/",
     "password": "",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "http:",
     "search": "",
     "username": ""
   },
   {
     "input": "http://ho\u000Ast/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
-    "href": "http://host/",
+    "href":"http://host/",
     "password": "",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "http:",
     "search": "",
     "username": ""
   },
   {
     "input": "http://ho\u000Dst/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
-    "href": "http://host/",
+    "href":"http://host/",
     "password": "",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "http:",
     "search": "",
     "username": ""
@@ -5032,238 +5047,238 @@
   "Encoded forbidden domain codepoints in special URLs",
   {
     "input": "http://ho%00st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%01st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%02st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%03st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%04st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%05st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%06st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%07st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%08st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%09st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%0Ast/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%0Bst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%0Cst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%0Dst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%0Est/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%0Fst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%10st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%11st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%12st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%13st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%14st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%15st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%16st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%17st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%18st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%19st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%1Ast/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%1Bst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%1Cst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%1Dst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%1Est/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%1Fst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%20st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%23st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%25st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%2Fst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%3Ast/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%3Cst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%3Est/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%3Fst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%40st/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%5Bst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%5Cst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%5Dst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%7Cst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://ho%7Fst/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "Allowed host/domain code points",
   {
     "input": "http://!\"$&'()*+,-.;=_`{}~/",
-    "base": "about:blank",
+    "base": null,
     "href": "http://!\"$&'()*+,-.;=_`{}~/",
     "origin": "http://!\"$&'()*+,-.;=_`{}~",
     "protocol": "http:",
@@ -5278,7 +5293,7 @@
   },
   {
     "input": "sc://\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u000B\u000C\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001F\u007F!\"$%&'()*+,-.;=_`{}~/",
-    "base": "about:blank",
+    "base": null,
     "href": "sc://%01%02%03%04%05%06%07%08%0B%0C%0E%0F%10%11%12%13%14%15%16%17%18%19%1A%1B%1C%1D%1E%1F%7F!\"$%&'()*+,-.;=_`{}~/",
     "origin": "null",
     "protocol": "sc:",
@@ -5294,27 +5309,27 @@
   "# Hosts and percent-encoding",
   {
     "input": "ftp://example.com%80/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "ftp://example.com%A0/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://example.com%80/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://example.com%A0/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "ftp://%e2%98%83",
-    "base": "about:blank",
+    "base": null,
     "href": "ftp://xn--n3h/",
     "origin": "ftp://xn--n3h",
     "protocol": "ftp:",
@@ -5329,7 +5344,7 @@
   },
   {
     "input": "https://%e2%98%83",
-    "base": "about:blank",
+    "base": null,
     "href": "https://xn--n3h/",
     "origin": "https://xn--n3h",
     "protocol": "https:",
@@ -5345,7 +5360,7 @@
   "# tests from jsdom/whatwg-url designed for code coverage",
   {
     "input": "http://127.0.0.1:10100/relative_import.html",
-    "base": "about:blank",
+    "base": null,
     "href": "http://127.0.0.1:10100/relative_import.html",
     "origin": "http://127.0.0.1:10100",
     "protocol": "http:",
@@ -5360,7 +5375,7 @@
   },
   {
     "input": "http://facebook.com/?foo=%7B%22abc%22",
-    "base": "about:blank",
+    "base": null,
     "href": "http://facebook.com/?foo=%7B%22abc%22",
     "origin": "http://facebook.com",
     "protocol": "http:",
@@ -5375,7 +5390,7 @@
   },
   {
     "input": "https://localhost:3000/jqueryui@1.2.3",
-    "base": "about:blank",
+    "base": null,
     "href": "https://localhost:3000/jqueryui@1.2.3",
     "origin": "https://localhost:3000",
     "protocol": "https:",
@@ -5391,7 +5406,7 @@
   "# tab/LF/CR",
   {
     "input": "h\tt\nt\rp://h\to\ns\rt:9\t0\n0\r0/p\ta\nt\rh?q\tu\ne\rry#f\tr\na\rg",
-    "base": "about:blank",
+    "base": null,
     "href": "http://host:9000/path?query#frag",
     "origin": "http://host:9000",
     "protocol": "http:",
@@ -5478,7 +5493,7 @@
   "# Percent encoding of fragments",
   {
     "input": "http://foo.bar/baz?qux#foo\bbar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://foo.bar/baz?qux#foo%08bar",
     "origin": "http://foo.bar",
     "protocol": "http:",
@@ -5494,7 +5509,7 @@
   },
   {
     "input": "http://foo.bar/baz?qux#foo\"bar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://foo.bar/baz?qux#foo%22bar",
     "origin": "http://foo.bar",
     "protocol": "http:",
@@ -5510,7 +5525,7 @@
   },
   {
     "input": "http://foo.bar/baz?qux#foo<bar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://foo.bar/baz?qux#foo%3Cbar",
     "origin": "http://foo.bar",
     "protocol": "http:",
@@ -5526,7 +5541,7 @@
   },
   {
     "input": "http://foo.bar/baz?qux#foo>bar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://foo.bar/baz?qux#foo%3Ebar",
     "origin": "http://foo.bar",
     "protocol": "http:",
@@ -5542,7 +5557,7 @@
   },
   {
     "input": "http://foo.bar/baz?qux#foo`bar",
-    "base": "about:blank",
+    "base": null,
     "href": "http://foo.bar/baz?qux#foo%60bar",
     "origin": "http://foo.bar",
     "protocol": "http:",
@@ -5774,7 +5789,7 @@
   },
   {
     "input": "https://0x.0x.0",
-    "base": "about:blank",
+    "base": null,
     "href": "https://0.0.0.0/",
     "origin": "https://0.0.0.0",
     "protocol": "https:",
@@ -5790,18 +5805,18 @@
   "More IPv4 parsing (via https://github.com/jsdom/whatwg-url/issues/92)",
   {
     "input": "https://0x100000000/test",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://256.0.0.1/test",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "# file URLs containing percent-encoded Windows drive letters (shouldn't work)",
   {
     "input": "file:///C%3A/",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///C%3A/",
     "protocol": "file:",
     "username": "",
@@ -5815,7 +5830,7 @@
   },
   {
     "input": "file:///C%7C/",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///C%7C/",
     "protocol": "file:",
     "username": "",
@@ -5829,42 +5844,42 @@
   },
   {
     "input": "file://%43%3A",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "file://%43%7C",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "file://%43|",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "file://C%7C",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "file://%43%7C/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://%43%7C/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "asdf://%43|/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "asdf://%43%7C/",
-    "base": "about:blank",
+    "base": null,
     "href": "asdf://%43%7C/",
     "origin": "null",
     "protocol": "asdf:",
@@ -6106,7 +6121,7 @@
   "# File URLs and many (back)slashes",
   {
     "input": "file:\\\\//",
-    "base": "about:blank",
+    "base": null,
     "href": "file:////",
     "protocol": "file:",
     "username": "",
@@ -6120,7 +6135,7 @@
   },
   {
     "input": "file:\\\\\\\\",
-    "base": "about:blank",
+    "base": null,
     "href": "file:////",
     "protocol": "file:",
     "username": "",
@@ -6134,7 +6149,7 @@
   },
   {
     "input": "file:\\\\\\\\?fox",
-    "base": "about:blank",
+    "base": null,
     "href": "file:////?fox",
     "protocol": "file:",
     "username": "",
@@ -6148,7 +6163,7 @@
   },
   {
     "input": "file:\\\\\\\\#guppy",
-    "base": "about:blank",
+    "base": null,
     "href": "file:////#guppy",
     "protocol": "file:",
     "username": "",
@@ -6162,7 +6177,7 @@
   },
   {
     "input": "file://spider///",
-    "base": "about:blank",
+    "base": null,
     "href": "file://spider///",
     "protocol": "file:",
     "username": "",
@@ -6176,7 +6191,7 @@
   },
   {
     "input": "file:\\\\localhost//",
-    "base": "about:blank",
+    "base": null,
     "href": "file:////",
     "protocol": "file:",
     "username": "",
@@ -6190,7 +6205,7 @@
   },
   {
     "input": "file:///localhost//cat",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///localhost//cat",
     "protocol": "file:",
     "username": "",
@@ -6204,7 +6219,7 @@
   },
   {
     "input": "file://\\/localhost//cat",
-    "base": "about:blank",
+    "base": null,
     "href": "file:////localhost//cat",
     "protocol": "file:",
     "username": "",
@@ -6218,7 +6233,7 @@
   },
   {
     "input": "file://localhost//a//../..//",
-    "base": "about:blank",
+    "base": null,
     "href": "file://///",
     "protocol": "file:",
     "username": "",
@@ -6530,7 +6545,7 @@
   "# Do not drop the host in the presence of a drive letter",
   {
     "input": "file://example.net/C:/",
-    "base": "about:blank",
+    "base": null,
     "href": "file://example.net/C:/",
     "protocol": "file:",
     "username": "",
@@ -6544,7 +6559,7 @@
   },
   {
     "input": "file://1.2.3.4/C:/",
-    "base": "about:blank",
+    "base": null,
     "href": "file://1.2.3.4/C:/",
     "protocol": "file:",
     "username": "",
@@ -6558,7 +6573,7 @@
   },
   {
     "input": "file://[1::8]/C:/",
-    "base": "about:blank",
+    "base": null,
     "href": "file://[1::8]/C:/",
     "protocol": "file:",
     "username": "",
@@ -6687,7 +6702,7 @@
   "# Windows drive letter quirk (no host)",
   {
     "input": "file:/C|/",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///C:/",
     "protocol": "file:",
     "username": "",
@@ -6701,7 +6716,7 @@
   },
   {
     "input": "file://C|/",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///C:/",
     "protocol": "file:",
     "username": "",
@@ -6716,7 +6731,7 @@
   "# file URLs without base URL by Rimas Misevičius",
   {
     "input": "file:",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///",
     "protocol": "file:",
     "username": "",
@@ -6730,7 +6745,7 @@
   },
   {
     "input": "file:?q=v",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///?q=v",
     "protocol": "file:",
     "username": "",
@@ -6744,7 +6759,7 @@
   },
   {
     "input": "file:#frag",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///#frag",
     "protocol": "file:",
     "username": "",
@@ -6759,7 +6774,7 @@
   "# file: drive letter cases from https://crbug.com/1078698",
   {
     "input": "file:///Y:",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///Y:",
     "protocol": "file:",
     "username": "",
@@ -6773,7 +6788,7 @@
   },
   {
     "input": "file:///Y:/",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///Y:/",
     "protocol": "file:",
     "username": "",
@@ -6787,7 +6802,7 @@
   },
   {
     "input": "file:///./Y",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///Y",
     "protocol": "file:",
     "username": "",
@@ -6801,7 +6816,7 @@
   },
   {
     "input": "file:///./Y:",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///Y:",
     "protocol": "file:",
     "username": "",
@@ -6815,14 +6830,14 @@
   },
   {
     "input": "\\\\\\.\\Y:",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   "# file: drive letter cases from https://crbug.com/1078698 but lowercased",
   {
     "input": "file:///y:",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///y:",
     "protocol": "file:",
     "username": "",
@@ -6836,7 +6851,7 @@
   },
   {
     "input": "file:///y:/",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///y:/",
     "protocol": "file:",
     "username": "",
@@ -6850,7 +6865,7 @@
   },
   {
     "input": "file:///./y",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///y",
     "protocol": "file:",
     "username": "",
@@ -6864,7 +6879,7 @@
   },
   {
     "input": "file:///./y:",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///y:",
     "protocol": "file:",
     "username": "",
@@ -6878,14 +6893,14 @@
   },
   {
     "input": "\\\\\\.\\y:",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   "# Additional file URL tests for (https://github.com/whatwg/url/issues/405)",
   {
     "input": "file://localhost//a//../..//foo",
-    "base": "about:blank",
+    "base": null,
     "href": "file://///foo",
     "protocol": "file:",
     "username": "",
@@ -6899,7 +6914,7 @@
   },
   {
     "input": "file://localhost////foo",
-    "base": "about:blank",
+    "base": null,
     "href": "file://////foo",
     "protocol": "file:",
     "username": "",
@@ -6913,7 +6928,7 @@
   },
   {
     "input": "file:////foo",
-    "base": "about:blank",
+    "base": null,
     "href": "file:////foo",
     "protocol": "file:",
     "username": "",
@@ -7012,7 +7027,7 @@
   "File URL tests for https://github.com/whatwg/url/issues/549",
   {
     "input": "file:.//p",
-    "base": "about:blank",
+    "base": null,
     "href": "file:////p",
     "protocol": "file:",
     "username": "",
@@ -7026,7 +7041,7 @@
   },
   {
     "input": "file:/.//p",
-    "base": "about:blank",
+    "base": null,
     "href": "file:////p",
     "protocol": "file:",
     "username": "",
@@ -7061,48 +7076,48 @@
   },
   {
     "input": "https://[0::0::0]",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://[0:.0]",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://[0:0:]",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://[0:1:2:3:4:5:6:7.0.0.0.1]",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://[0:1.00.0.0.0]",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://[0:1.290.0.0.0]",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://[0:1.23.23]",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "# Empty host",
   {
     "input": "http://?",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://#",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "Port overflow (2^32 + 81)",
@@ -7126,7 +7141,7 @@
   "# Non-special-URL path tests",
   {
     "input": "sc://ñ",
-    "base": "about:blank",
+    "base": null,
     "href": "sc://%C3%B1",
     "origin": "null",
     "protocol": "sc:",
@@ -7141,7 +7156,7 @@
   },
   {
     "input": "sc://ñ?x",
-    "base": "about:blank",
+    "base": null,
     "href": "sc://%C3%B1?x",
     "origin": "null",
     "protocol": "sc:",
@@ -7156,7 +7171,7 @@
   },
   {
     "input": "sc://ñ#x",
-    "base": "about:blank",
+    "base": null,
     "href": "sc://%C3%B1#x",
     "origin": "null",
     "protocol": "sc:",
@@ -7201,7 +7216,7 @@
   },
   {
     "input": "sc://?",
-    "base": "about:blank",
+    "base": null,
     "href": "sc://?",
     "protocol": "sc:",
     "username": "",
@@ -7215,7 +7230,7 @@
   },
   {
     "input": "sc://#",
-    "base": "about:blank",
+    "base": null,
     "href": "sc://#",
     "protocol": "sc:",
     "username": "",
@@ -7271,7 +7286,7 @@
   },
   {
     "input": "tftp://foobar.com/someconfig;mode=netascii",
-    "base": "about:blank",
+    "base": null,
     "href": "tftp://foobar.com/someconfig;mode=netascii",
     "origin": "null",
     "protocol": "tftp:",
@@ -7286,7 +7301,7 @@
   },
   {
     "input": "telnet://user:pass@foobar.com:23/",
-    "base": "about:blank",
+    "base": null,
     "href": "telnet://user:pass@foobar.com:23/",
     "origin": "null",
     "protocol": "telnet:",
@@ -7301,7 +7316,7 @@
   },
   {
     "input": "ut2004://10.10.10.10:7777/Index.ut2",
-    "base": "about:blank",
+    "base": null,
     "href": "ut2004://10.10.10.10:7777/Index.ut2",
     "origin": "null",
     "protocol": "ut2004:",
@@ -7316,7 +7331,7 @@
   },
   {
     "input": "redis://foo:bar@somehost:6379/0?baz=bam&qux=baz",
-    "base": "about:blank",
+    "base": null,
     "href": "redis://foo:bar@somehost:6379/0?baz=bam&qux=baz",
     "origin": "null",
     "protocol": "redis:",
@@ -7331,7 +7346,7 @@
   },
   {
     "input": "rsync://foo@host:911/sup",
-    "base": "about:blank",
+    "base": null,
     "href": "rsync://foo@host:911/sup",
     "origin": "null",
     "protocol": "rsync:",
@@ -7346,7 +7361,7 @@
   },
   {
     "input": "git://github.com/foo/bar.git",
-    "base": "about:blank",
+    "base": null,
     "href": "git://github.com/foo/bar.git",
     "origin": "null",
     "protocol": "git:",
@@ -7361,7 +7376,7 @@
   },
   {
     "input": "irc://myserver.com:6999/channel?passwd",
-    "base": "about:blank",
+    "base": null,
     "href": "irc://myserver.com:6999/channel?passwd",
     "origin": "null",
     "protocol": "irc:",
@@ -7376,7 +7391,7 @@
   },
   {
     "input": "dns://fw.example.org:9999/foo.bar.org?type=TXT",
-    "base": "about:blank",
+    "base": null,
     "href": "dns://fw.example.org:9999/foo.bar.org?type=TXT",
     "origin": "null",
     "protocol": "dns:",
@@ -7391,7 +7406,7 @@
   },
   {
     "input": "ldap://localhost:389/ou=People,o=JNDITutorial",
-    "base": "about:blank",
+    "base": null,
     "href": "ldap://localhost:389/ou=People,o=JNDITutorial",
     "origin": "null",
     "protocol": "ldap:",
@@ -7406,7 +7421,7 @@
   },
   {
     "input": "git+https://github.com/foo/bar",
-    "base": "about:blank",
+    "base": null,
     "href": "git+https://github.com/foo/bar",
     "origin": "null",
     "protocol": "git+https:",
@@ -7421,7 +7436,7 @@
   },
   {
     "input": "urn:ietf:rfc:2648",
-    "base": "about:blank",
+    "base": null,
     "href": "urn:ietf:rfc:2648",
     "origin": "null",
     "protocol": "urn:",
@@ -7436,7 +7451,7 @@
   },
   {
     "input": "tag:joe@example.org,2001:foo/bar",
-    "base": "about:blank",
+    "base": null,
     "href": "tag:joe@example.org,2001:foo/bar",
     "origin": "null",
     "protocol": "tag:",
@@ -7452,7 +7467,7 @@
   "Serialize /. in path",
   {
     "input": "non-spec:/.//",
-    "base": "about:blank",
+    "base": null,
     "href": "non-spec:/.//",
     "protocol": "non-spec:",
     "username": "",
@@ -7466,7 +7481,7 @@
   },
   {
     "input": "non-spec:/..//",
-    "base": "about:blank",
+    "base": null,
     "href": "non-spec:/.//",
     "protocol": "non-spec:",
     "username": "",
@@ -7480,7 +7495,7 @@
   },
   {
     "input": "non-spec:/a/..//",
-    "base": "about:blank",
+    "base": null,
     "href": "non-spec:/.//",
     "protocol": "non-spec:",
     "username": "",
@@ -7494,7 +7509,7 @@
   },
   {
     "input": "non-spec:/.//path",
-    "base": "about:blank",
+    "base": null,
     "href": "non-spec:/.//path",
     "protocol": "non-spec:",
     "username": "",
@@ -7508,7 +7523,7 @@
   },
   {
     "input": "non-spec:/..//path",
-    "base": "about:blank",
+    "base": null,
     "href": "non-spec:/.//path",
     "protocol": "non-spec:",
     "username": "",
@@ -7522,7 +7537,7 @@
   },
   {
     "input": "non-spec:/a/..//path",
-    "base": "about:blank",
+    "base": null,
     "href": "non-spec:/.//path",
     "protocol": "non-spec:",
     "username": "",
@@ -7636,7 +7651,7 @@
   "# percent encoded hosts in non-special-URLs",
   {
     "input": "non-special://%E2%80%A0/",
-    "base": "about:blank",
+    "base": null,
     "href": "non-special://%E2%80%A0/",
     "protocol": "non-special:",
     "username": "",
@@ -7650,7 +7665,7 @@
   },
   {
     "input": "non-special://H%4fSt/path",
-    "base": "about:blank",
+    "base": null,
     "href": "non-special://H%4fSt/path",
     "protocol": "non-special:",
     "username": "",
@@ -7665,7 +7680,7 @@
   "# IPv6 in non-special-URLs",
   {
     "input": "non-special://[1:2:0:0:5:0:0:0]/",
-    "base": "about:blank",
+    "base": null,
     "href": "non-special://[1:2:0:0:5::]/",
     "protocol": "non-special:",
     "username": "",
@@ -7679,7 +7694,7 @@
   },
   {
     "input": "non-special://[1:2:0:0:0:0:0:3]/",
-    "base": "about:blank",
+    "base": null,
     "href": "non-special://[1:2::3]/",
     "protocol": "non-special:",
     "username": "",
@@ -7693,7 +7708,7 @@
   },
   {
     "input": "non-special://[1:2::3]:80/",
-    "base": "about:blank",
+    "base": null,
     "href": "non-special://[1:2::3]:80/",
     "protocol": "non-special:",
     "username": "",
@@ -7707,12 +7722,12 @@
   },
   {
     "input": "non-special://[:80/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "blob:https://example.com:443/",
-    "base": "about:blank",
+    "base": null,
     "href": "blob:https://example.com:443/",
     "origin": "https://example.com",
     "protocol": "blob:",
@@ -7725,9 +7740,24 @@
     "search": "",
     "hash": ""
   },
+  {
+    "input": "blob:http://example.org:88/",
+    "base": null,
+    "href": "blob:http://example.org:88/",
+    "origin": "http://example.org:88",
+    "protocol": "blob:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "http://example.org:88/",
+    "search": "",
+    "hash": ""
+  },
   {
     "input": "blob:d3958f5c-0777-0845-9dcf-2cb28783acaf",
-    "base": "about:blank",
+    "base": null,
     "href": "blob:d3958f5c-0777-0845-9dcf-2cb28783acaf",
     "origin": "null",
     "protocol": "blob:",
@@ -7742,7 +7772,7 @@
   },
   {
     "input": "blob:",
-    "base": "about:blank",
+    "base": null,
     "href": "blob:",
     "origin": "null",
     "protocol": "blob:",
@@ -7755,28 +7785,151 @@
     "search": "",
     "hash": ""
   },
-  "Invalid IPv4 radix digits",
+  "blob: in blob:",
   {
-    "input": "http://0x7f.0.0.0x7g",
-    "base": "about:blank",
-    "href": "http://0x7f.0.0.0x7g/",
-    "protocol": "http:",
+    "input": "blob:blob:",
+    "base": null,
+    "href": "blob:blob:",
+    "origin": "null",
+    "protocol": "blob:",
     "username": "",
     "password": "",
-    "host": "0x7f.0.0.0x7g",
-    "hostname": "0x7f.0.0.0x7g",
+    "host": "",
+    "hostname": "",
     "port": "",
-    "pathname": "/",
+    "pathname": "blob:",
     "search": "",
     "hash": ""
   },
   {
-    "input": "http://0X7F.0.0.0X7G",
-    "base": "about:blank",
-    "href": "http://0x7f.0.0.0x7g/",
-    "protocol": "http:",
-    "username": "",
-    "password": "",
+    "input": "blob:blob:https://example.org/",
+    "base": null,
+    "href": "blob:blob:https://example.org/",
+    "origin": "null",
+    "protocol": "blob:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "blob:https://example.org/",
+    "search": "",
+    "hash": ""
+  },
+  "Non-http(s): in blob:",
+  {
+    "input": "blob:about:blank",
+    "base": null,
+    "href": "blob:about:blank",
+    "origin": "null",
+    "protocol": "blob:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "about:blank",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "blob:file://host/path",
+    "base": null,
+    "href": "blob:file://host/path",
+    "origin": "null",
+    "protocol": "blob:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "file://host/path",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "blob:ftp://host/path",
+    "base": null,
+    "href": "blob:ftp://host/path",
+    "origin": "null",
+    "protocol": "blob:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "ftp://host/path",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "blob:ws://example.org/",
+    "base": null,
+    "href": "blob:ws://example.org/",
+    "origin": "null",
+    "protocol": "blob:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "ws://example.org/",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "blob:wss://example.org/",
+    "base": null,
+    "href": "blob:wss://example.org/",
+    "origin": "null",
+    "protocol": "blob:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "wss://example.org/",
+    "search": "",
+    "hash": ""
+  },
+  "Percent-encoded http: in blob:",
+  {
+    "input": "blob:http%3a//example.org/",
+    "base": null,
+    "href": "blob:http%3a//example.org/",
+    "origin": "null",
+    "protocol": "blob:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "http%3a//example.org/",
+    "search": "",
+    "hash": ""
+  },
+  "Invalid IPv4 radix digits",
+  {
+    "input": "http://0x7f.0.0.0x7g",
+    "base": null,
+    "href": "http://0x7f.0.0.0x7g/",
+    "protocol": "http:",
+    "username": "",
+    "password": "",
+    "host": "0x7f.0.0.0x7g",
+    "hostname": "0x7f.0.0.0x7g",
+    "port": "",
+    "pathname": "/",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "http://0X7F.0.0.0X7G",
+    "base": null,
+    "href": "http://0x7f.0.0.0x7g/",
+    "protocol": "http:",
+    "username": "",
+    "password": "",
     "host": "0x7f.0.0.0x7g",
     "hostname": "0x7f.0.0.0x7g",
     "port": "",
@@ -7787,13 +7940,13 @@
   "Invalid IPv4 portion of IPv6 address",
   {
     "input": "http://[::127.0.0.0.1]",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "Uncompressed IPv6 addresses with 0",
   {
     "input": "http://[0:1:0:1:0:1:0:1]",
-    "base": "about:blank",
+    "base": null,
     "href": "http://[0:1:0:1:0:1:0:1]/",
     "protocol": "http:",
     "username": "",
@@ -7807,7 +7960,7 @@
   },
   {
     "input": "http://[1:0:1:0:1:0:1:0]",
-    "base": "about:blank",
+    "base": null,
     "href": "http://[1:0:1:0:1:0:1:0]/",
     "protocol": "http:",
     "username": "",
@@ -7822,7 +7975,7 @@
   "Percent-encoded query and fragment",
   {
     "input": "http://example.org/test?\u0022",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.org/test?%22",
     "protocol": "http:",
     "username": "",
@@ -7836,7 +7989,7 @@
   },
   {
     "input": "http://example.org/test?\u0023",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.org/test?#",
     "protocol": "http:",
     "username": "",
@@ -7850,7 +8003,7 @@
   },
   {
     "input": "http://example.org/test?\u003C",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.org/test?%3C",
     "protocol": "http:",
     "username": "",
@@ -7864,7 +8017,7 @@
   },
   {
     "input": "http://example.org/test?\u003E",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.org/test?%3E",
     "protocol": "http:",
     "username": "",
@@ -7878,7 +8031,7 @@
   },
   {
     "input": "http://example.org/test?\u2323",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.org/test?%E2%8C%A3",
     "protocol": "http:",
     "username": "",
@@ -7892,7 +8045,7 @@
   },
   {
     "input": "http://example.org/test?%23%23",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.org/test?%23%23",
     "protocol": "http:",
     "username": "",
@@ -7906,7 +8059,7 @@
   },
   {
     "input": "http://example.org/test?%GH",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.org/test?%GH",
     "protocol": "http:",
     "username": "",
@@ -7920,7 +8073,7 @@
   },
   {
     "input": "http://example.org/test?a#%EF",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.org/test?a#%EF",
     "protocol": "http:",
     "username": "",
@@ -7934,7 +8087,7 @@
   },
   {
     "input": "http://example.org/test?a#%GH",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.org/test?a#%GH",
     "protocol": "http:",
     "username": "",
@@ -7949,21 +8102,21 @@
   "URLs that require a non-about:blank base. (Also serve as invalid base tests.)",
   {
     "input": "a",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "a/",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "a//",
-    "base": "about:blank",
+    "base": null,
     "failure": true,
-    "inputCanBeRelative": true
+    "relativeTo": "non-opaque-path-base"
   },
   "Bases that don't fail to parse but fail to be bases",
   {
@@ -8036,7 +8189,7 @@
   "Null code point in fragment",
   {
     "input": "http://example.org/test?a#b\u0000c",
-    "base": "about:blank",
+    "base": null,
     "href": "http://example.org/test?a#b%00c",
     "protocol": "http:",
     "username": "",
@@ -8050,7 +8203,7 @@
   },
   {
     "input": "non-spec://example.org/test?a#b\u0000c",
-    "base": "about:blank",
+    "base": null,
     "href": "non-spec://example.org/test?a#b%00c",
     "protocol": "non-spec:",
     "username": "",
@@ -8064,7 +8217,7 @@
   },
   {
     "input": "non-spec:/test?a#b\u0000c",
-    "base": "about:blank",
+    "base": null,
     "href": "non-spec:/test?a#b%00c",
     "protocol": "non-spec:",
     "username": "",
@@ -8124,7 +8277,7 @@
   "IDNA ignored code points in file URLs hosts",
   {
     "input": "file://a\u00ADb/p",
-    "base": "about:blank",
+    "base": null,
     "href": "file://ab/p",
     "protocol": "file:",
     "username": "",
@@ -8138,7 +8291,7 @@
   },
   {
     "input": "file://a%C2%ADb/p",
-    "base": "about:blank",
+    "base": null,
     "href": "file://ab/p",
     "protocol": "file:",
     "username": "",
@@ -8153,7 +8306,7 @@
   "IDNA hostnames which get mapped to 'localhost'",
   {
     "input": "file://loC𝐀𝐋𝐇𝐨𝐬𝐭/usr/bin",
-    "base": "about:blank",
+    "base": null,
     "href": "file:///usr/bin",
     "protocol": "file:",
     "username": "",
@@ -8168,17 +8321,17 @@
   "Empty host after the domain to ASCII",
   {
     "input": "file://\u00ad/p",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "file://%C2%AD/p",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "file://xn--/p",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "https://bugzilla.mozilla.org/show_bug.cgi?id=1647058",
@@ -8199,7 +8352,7 @@
   "UTF-8 percent-encode of C0 control percent-encode set and supersets",
   {
     "input": "non-special:cannot-be-a-base-url-\u0000\u0001\u001F\u001E\u007E\u007F\u0080",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "",
     "hostname": "",
@@ -8214,7 +8367,7 @@
   },
   {
     "input": "https://www.example.com/path{\u007Fpath.html?query'\u007F=query#fragment<\u007Ffragment",
-    "base": "about:blank",
+    "base": null,
     "hash": "#fragment%3C%7Ffragment",
     "host": "www.example.com",
     "hostname": "www.example.com",
@@ -8245,7 +8398,7 @@
   "Tests for the distinct percent-encode sets",
   {
     "input": "foo:// !\"$%&'()*+,-.;<=>@[\\]^_`{|}~@host/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
@@ -8253,14 +8406,14 @@
     "origin": "null",
     "password": "",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "foo:",
     "search": "",
     "username": "%20!%22$%&'()*+,-.%3B%3C%3D%3E%40%5B%5C%5D%5E_%60%7B%7C%7D~"
   },
   {
     "input": "wss:// !\"$%&'()*+,-.;<=>@[]^_`{|}~@host/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
@@ -8268,14 +8421,14 @@
     "origin": "wss://host",
     "password": "",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "wss:",
     "search": "",
     "username": "%20!%22$%&'()*+,-.%3B%3C%3D%3E%40%5B%5D%5E_%60%7B%7C%7D~"
   },
   {
     "input": "foo://joe: !\"$%&'()*+,-.:;<=>@[\\]^_`{|}~@host/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
@@ -8283,14 +8436,14 @@
     "origin": "null",
     "password": "%20!%22$%&'()*+,-.%3A%3B%3C%3D%3E%40%5B%5C%5D%5E_%60%7B%7C%7D~",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "foo:",
     "search": "",
     "username": "joe"
   },
   {
     "input": "wss://joe: !\"$%&'()*+,-.:;<=>@[]^_`{|}~@host/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
@@ -8298,44 +8451,44 @@
     "origin": "wss://host",
     "password": "%20!%22$%&'()*+,-.%3A%3B%3C%3D%3E%40%5B%5D%5E_%60%7B%7C%7D~",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "wss:",
     "search": "",
     "username": "joe"
   },
   {
     "input": "foo://!\"$%&'()*+,-.;=_`{}~/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "!\"$%&'()*+,-.;=_`{}~",
     "hostname": "!\"$%&'()*+,-.;=_`{}~",
-    "href": "foo://!\"$%&'()*+,-.;=_`{}~/",
+    "href":"foo://!\"$%&'()*+,-.;=_`{}~/",
     "origin": "null",
     "password": "",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "foo:",
     "search": "",
     "username": ""
   },
   {
     "input": "wss://!\"$&'()*+,-.;=_`{}~/",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "!\"$&'()*+,-.;=_`{}~",
     "hostname": "!\"$&'()*+,-.;=_`{}~",
-    "href": "wss://!\"$&'()*+,-.;=_`{}~/",
+    "href":"wss://!\"$&'()*+,-.;=_`{}~/",
     "origin": "wss://!\"$&'()*+,-.;=_`{}~",
     "password": "",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "wss:",
     "search": "",
     "username": ""
   },
   {
     "input": "foo://host/ !\"$%&'()*+,-./:;<=>@[\\]^_`{|}~",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
@@ -8343,14 +8496,14 @@
     "origin": "null",
     "password": "",
     "pathname": "/%20!%22$%&'()*+,-./:;%3C=%3E@[\\]^_%60%7B|%7D~",
-    "port": "",
+    "port":"",
     "protocol": "foo:",
     "search": "",
     "username": ""
   },
   {
     "input": "wss://host/ !\"$%&'()*+,-./:;<=>@[\\]^_`{|}~",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
@@ -8358,14 +8511,14 @@
     "origin": "wss://host",
     "password": "",
     "pathname": "/%20!%22$%&'()*+,-./:;%3C=%3E@[/]^_%60%7B|%7D~",
-    "port": "",
+    "port":"",
     "protocol": "wss:",
     "search": "",
     "username": ""
   },
   {
     "input": "foo://host/dir/? !\"$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
@@ -8373,14 +8526,14 @@
     "origin": "null",
     "password": "",
     "pathname": "/dir/",
-    "port": "",
+    "port":"",
     "protocol": "foo:",
     "search": "?%20!%22$%&'()*+,-./:;%3C=%3E?@[\\]^_`{|}~",
     "username": ""
   },
   {
     "input": "wss://host/dir/? !\"$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "host",
     "hostname": "host",
@@ -8388,14 +8541,14 @@
     "origin": "wss://host",
     "password": "",
     "pathname": "/dir/",
-    "port": "",
+    "port":"",
     "protocol": "wss:",
     "search": "?%20!%22$%&%27()*+,-./:;%3C=%3E?@[\\]^_`{|}~",
     "username": ""
   },
   {
     "input": "foo://host/dir/# !\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
-    "base": "about:blank",
+    "base": null,
     "hash": "#%20!%22#$%&'()*+,-./:;%3C=%3E?@[\\]^_%60{|}~",
     "host": "host",
     "hostname": "host",
@@ -8403,14 +8556,14 @@
     "origin": "null",
     "password": "",
     "pathname": "/dir/",
-    "port": "",
+    "port":"",
     "protocol": "foo:",
     "search": "",
     "username": ""
   },
   {
     "input": "wss://host/dir/# !\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
-    "base": "about:blank",
+    "base": null,
     "hash": "#%20!%22#$%&'()*+,-./:;%3C=%3E?@[\\]^_%60{|}~",
     "host": "host",
     "hostname": "host",
@@ -8418,7 +8571,7 @@
     "origin": "wss://host",
     "password": "",
     "pathname": "/dir/",
-    "port": "",
+    "port":"",
     "protocol": "wss:",
     "search": "",
     "username": ""
@@ -8430,10 +8583,10 @@
     "hash": "",
     "host": "",
     "hostname": "",
-    "href": "abc:rootless",
+    "href":"abc:rootless",
     "password": "",
     "pathname": "rootless",
-    "port": "",
+    "port":"",
     "protocol": "abc:",
     "search": "",
     "username": ""
@@ -8444,10 +8597,10 @@
     "hash": "",
     "host": "",
     "hostname": "",
-    "href": "abc:rootless",
+    "href":"abc:rootless",
     "password": "",
     "pathname": "rootless",
-    "port": "",
+    "port":"",
     "protocol": "abc:",
     "search": "",
     "username": ""
@@ -8458,10 +8611,10 @@
     "hash": "",
     "host": "",
     "hostname": "",
-    "href": "abc:rootless",
+    "href":"abc:rootless",
     "password": "",
     "pathname": "rootless",
-    "port": "",
+    "port":"",
     "protocol": "abc:",
     "search": "",
     "username": ""
@@ -8472,10 +8625,10 @@
     "hash": "",
     "host": "",
     "hostname": "",
-    "href": "abc:/rooted",
+    "href":"abc:/rooted",
     "password": "",
     "pathname": "/rooted",
-    "port": "",
+    "port":"",
     "protocol": "abc:",
     "search": "",
     "username": ""
@@ -8484,12 +8637,14 @@
   {
     "input": "#",
     "base": null,
-    "failure": true
+    "failure": true,
+    "relativeTo": "any-base"
   },
   {
     "input": "?",
     "base": null,
-    "failure": true
+    "failure": true,
+    "relativeTo": "non-opaque-path-base"
   },
   "Last component looks like a number, but not valid IPv4",
   {
@@ -8504,12 +8659,12 @@
   },
   {
     "input": "http://0..0x300/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://0..0x300./",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
@@ -8524,142 +8679,142 @@
   },
   {
     "input": "http://1.2.3.08",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://1.2.3.08.",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://1.2.3.09",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://09.2.3.4",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://09.2.3.4.",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://01.2.3.4.5",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://01.2.3.4.5.",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://0x100.2.3.4",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://0x100.2.3.4.",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://0x1.2.3.4.5",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://0x1.2.3.4.5.",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://foo.1.2.3.4",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://foo.1.2.3.4.",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://foo.2.3.4",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://foo.2.3.4.",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://foo.09",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://foo.09.",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://foo.0x4",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://foo.0x4.",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://foo.09..",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "foo.09..",
     "hostname": "foo.09..",
-    "href": "http://foo.09../",
+    "href":"http://foo.09../",
     "password": "",
     "pathname": "/",
-    "port": "",
+    "port":"",
     "protocol": "http:",
     "search": "",
     "username": ""
   },
   {
     "input": "http://0999999999999999999/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://foo.0x",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://foo.0XFfFfFfFfFfFfFfFfFfAcE123",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "http://💩.123/",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   "U+0000 and U+FFFF in various places",
   {
     "input": "https://\u0000y",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://x/\u0000y",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "x",
     "hostname": "x",
@@ -8673,7 +8828,7 @@
   },
   {
     "input": "https://x/?\u0000y",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "x",
     "hostname": "x",
@@ -8687,7 +8842,7 @@
   },
   {
     "input": "https://x/?#\u0000y",
-    "base": "about:blank",
+    "base": null,
     "hash": "#%00y",
     "host": "x",
     "hostname": "x",
@@ -8695,18 +8850,18 @@
     "password": "",
     "pathname": "/",
     "port": "",
-    "protocol": "http:",
+    "protocol": "https:",
     "search": "",
     "username": ""
   },
   {
     "input": "https://\uFFFFy",
-    "base": "about:blank",
+    "base": null,
     "failure": true
   },
   {
     "input": "https://x/\uFFFFy",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "x",
     "hostname": "x",
@@ -8720,7 +8875,7 @@
   },
   {
     "input": "https://x/?\uFFFFy",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "x",
     "hostname": "x",
@@ -8734,7 +8889,7 @@
   },
   {
     "input": "https://x/?#\uFFFFy",
-    "base": "about:blank",
+    "base": null,
     "hash": "#%EF%BF%BFy",
     "host": "x",
     "hostname": "x",
@@ -8748,7 +8903,7 @@
   },
   {
     "input": "non-special:\u0000y",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "",
     "hostname": "",
@@ -8762,7 +8917,7 @@
   },
   {
     "input": "non-special:x/\u0000y",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "",
     "hostname": "",
@@ -8776,7 +8931,7 @@
   },
   {
     "input": "non-special:x/?\u0000y",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "",
     "hostname": "",
@@ -8790,7 +8945,7 @@
   },
   {
     "input": "non-special:x/?#\u0000y",
-    "base": "about:blank",
+    "base": null,
     "hash": "#%00y",
     "host": "",
     "hostname": "",
@@ -8804,7 +8959,7 @@
   },
   {
     "input": "non-special:\uFFFFy",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "",
     "hostname": "",
@@ -8818,7 +8973,7 @@
   },
   {
     "input": "non-special:x/\uFFFFy",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "",
     "hostname": "",
@@ -8832,7 +8987,7 @@
   },
   {
     "input": "non-special:x/?\uFFFFy",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "",
     "hostname": "",
@@ -8846,7 +9001,7 @@
   },
   {
     "input": "non-special:x/?#\uFFFFy",
-    "base": "about:blank",
+    "base": null,
     "hash": "#%EF%BF%BFy",
     "host": "",
     "hostname": "",
@@ -8860,12 +9015,13 @@
   },
   {
     "input": "",
-    "base": "about:blank",
-    "failure": true
+    "base": null,
+    "failure": true,
+    "relativeTo": "non-opaque-path-base"
   },
   {
     "input": "https://example.com/\"quoted\"",
-    "base": "about:blank",
+    "base": null,
     "hash": "",
     "host": "example.com",
     "hostname": "example.com",
@@ -8877,5 +9033,487 @@
     "protocol": "https:",
     "search": "",
     "username": ""
+  },
+  {
+    "input": "https://a%C2%ADb/",
+    "base": null,
+    "hash": "",
+    "host": "ab",
+    "hostname": "ab",
+    "href": "https://ab/",
+    "origin": "https://ab",
+    "password": "",
+    "pathname": "/",
+    "port": "",
+    "protocol": "https:",
+    "search": "",
+    "username": ""
+  },
+  {
+    "comment": "Empty host after domain to ASCII",
+    "input": "https://\u00AD/",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "https://%C2%AD/",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "https://xn--/",
+    "base": null,
+    "failure": true
+  },
+  "Non-special schemes that some implementations might incorrectly treat as special",
+  {
+    "input": "data://example.com:8080/pathname?search#hash",
+    "base": null,
+    "href": "data://example.com:8080/pathname?search#hash",
+    "origin": "null",
+    "protocol": "data:",
+    "username": "",
+    "password": "",
+    "host": "example.com:8080",
+    "hostname": "example.com",
+    "port": "8080",
+    "pathname": "/pathname",
+    "search": "?search",
+    "hash": "#hash"
+  },
+  {
+    "input": "data:///test",
+    "base": null,
+    "href": "data:///test",
+    "origin": "null",
+    "protocol": "data:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "/test",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "data://test/a/../b",
+    "base": null,
+    "href": "data://test/b",
+    "origin": "null",
+    "protocol": "data:",
+    "username": "",
+    "password": "",
+    "host": "test",
+    "hostname": "test",
+    "port": "",
+    "pathname": "/b",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "data://:443",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "data://test:test",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "data://[:1]",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "javascript://example.com:8080/pathname?search#hash",
+    "base": null,
+    "href": "javascript://example.com:8080/pathname?search#hash",
+    "origin": "null",
+    "protocol": "javascript:",
+    "username": "",
+    "password": "",
+    "host": "example.com:8080",
+    "hostname": "example.com",
+    "port": "8080",
+    "pathname": "/pathname",
+    "search": "?search",
+    "hash": "#hash"
+  },
+  {
+    "input": "javascript:///test",
+    "base": null,
+    "href": "javascript:///test",
+    "origin": "null",
+    "protocol": "javascript:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "/test",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "javascript://test/a/../b",
+    "base": null,
+    "href": "javascript://test/b",
+    "origin": "null",
+    "protocol": "javascript:",
+    "username": "",
+    "password": "",
+    "host": "test",
+    "hostname": "test",
+    "port": "",
+    "pathname": "/b",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "javascript://:443",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "javascript://test:test",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "javascript://[:1]",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "mailto://example.com:8080/pathname?search#hash",
+    "base": null,
+    "href": "mailto://example.com:8080/pathname?search#hash",
+    "origin": "null",
+    "protocol": "mailto:",
+    "username": "",
+    "password": "",
+    "host": "example.com:8080",
+    "hostname": "example.com",
+    "port": "8080",
+    "pathname": "/pathname",
+    "search": "?search",
+    "hash": "#hash"
+  },
+  {
+    "input": "mailto:///test",
+    "base": null,
+    "href": "mailto:///test",
+    "origin": "null",
+    "protocol": "mailto:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "/test",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "mailto://test/a/../b",
+    "base": null,
+    "href": "mailto://test/b",
+    "origin": "null",
+    "protocol": "mailto:",
+    "username": "",
+    "password": "",
+    "host": "test",
+    "hostname": "test",
+    "port": "",
+    "pathname": "/b",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "mailto://:443",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "mailto://test:test",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "mailto://[:1]",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "intent://example.com:8080/pathname?search#hash",
+    "base": null,
+    "href": "intent://example.com:8080/pathname?search#hash",
+    "origin": "null",
+    "protocol": "intent:",
+    "username": "",
+    "password": "",
+    "host": "example.com:8080",
+    "hostname": "example.com",
+    "port": "8080",
+    "pathname": "/pathname",
+    "search": "?search",
+    "hash": "#hash"
+  },
+  {
+    "input": "intent:///test",
+    "base": null,
+    "href": "intent:///test",
+    "origin": "null",
+    "protocol": "intent:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "/test",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "intent://test/a/../b",
+    "base": null,
+    "href": "intent://test/b",
+    "origin": "null",
+    "protocol": "intent:",
+    "username": "",
+    "password": "",
+    "host": "test",
+    "hostname": "test",
+    "port": "",
+    "pathname": "/b",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "intent://:443",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "intent://test:test",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "intent://[:1]",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "urn://example.com:8080/pathname?search#hash",
+    "base": null,
+    "href": "urn://example.com:8080/pathname?search#hash",
+    "origin": "null",
+    "protocol": "urn:",
+    "username": "",
+    "password": "",
+    "host": "example.com:8080",
+    "hostname": "example.com",
+    "port": "8080",
+    "pathname": "/pathname",
+    "search": "?search",
+    "hash": "#hash"
+  },
+  {
+    "input": "urn:///test",
+    "base": null,
+    "href": "urn:///test",
+    "origin": "null",
+    "protocol": "urn:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "/test",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "urn://test/a/../b",
+    "base": null,
+    "href": "urn://test/b",
+    "origin": "null",
+    "protocol": "urn:",
+    "username": "",
+    "password": "",
+    "host": "test",
+    "hostname": "test",
+    "port": "",
+    "pathname": "/b",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "urn://:443",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "urn://test:test",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "urn://[:1]",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "turn://example.com:8080/pathname?search#hash",
+    "base": null,
+    "href": "turn://example.com:8080/pathname?search#hash",
+    "origin": "null",
+    "protocol": "turn:",
+    "username": "",
+    "password": "",
+    "host": "example.com:8080",
+    "hostname": "example.com",
+    "port": "8080",
+    "pathname": "/pathname",
+    "search": "?search",
+    "hash": "#hash"
+  },
+  {
+    "input": "turn:///test",
+    "base": null,
+    "href": "turn:///test",
+    "origin": "null",
+    "protocol": "turn:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "/test",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "turn://test/a/../b",
+    "base": null,
+    "href": "turn://test/b",
+    "origin": "null",
+    "protocol": "turn:",
+    "username": "",
+    "password": "",
+    "host": "test",
+    "hostname": "test",
+    "port": "",
+    "pathname": "/b",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "turn://:443",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "turn://test:test",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "turn://[:1]",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "stun://example.com:8080/pathname?search#hash",
+    "base": null,
+    "href": "stun://example.com:8080/pathname?search#hash",
+    "origin": "null",
+    "protocol": "stun:",
+    "username": "",
+    "password": "",
+    "host": "example.com:8080",
+    "hostname": "example.com",
+    "port": "8080",
+    "pathname": "/pathname",
+    "search": "?search",
+    "hash": "#hash"
+  },
+  {
+    "input": "stun:///test",
+    "base": null,
+    "href": "stun:///test",
+    "origin": "null",
+    "protocol": "stun:",
+    "username": "",
+    "password": "",
+    "host": "",
+    "hostname": "",
+    "port": "",
+    "pathname": "/test",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "stun://test/a/../b",
+    "base": null,
+    "href": "stun://test/b",
+    "origin": "null",
+    "protocol": "stun:",
+    "username": "",
+    "password": "",
+    "host": "test",
+    "hostname": "test",
+    "port": "",
+    "pathname": "/b",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "stun://:443",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "stun://test:test",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "stun://[:1]",
+    "base": null,
+    "failure": true
+  },
+  {
+    "input": "w://x:0",
+    "base": null,
+    "href": "w://x:0",
+    "origin": "null",
+    "protocol": "w:",
+    "username": "",
+    "password": "",
+    "host": "x:0",
+    "hostname": "x",
+    "port": "0",
+    "pathname": "",
+    "search": "",
+    "hash": ""
+  },
+  {
+    "input": "west://x:0",
+    "base": null,
+    "href": "west://x:0",
+    "origin": "null",
+    "protocol": "west:",
+    "username": "",
+    "password": "",
+    "host": "x:0",
+    "hostname": "x",
+    "port": "0",
+    "pathname": "",
+    "search": "",
+    "hash": ""
   }
 ]