diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/CaretPosition-001.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/CaretPosition-001.html.ini
new file mode 100644
index 00000000000..4c79907309b
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/cssom-view/CaretPosition-001.html.ini
@@ -0,0 +1,4 @@
+[CaretPosition-001.html]
+  [Element at (400, 100)]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/elementFromPoint-001.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/elementFromPoint-001.html.ini
new file mode 100644
index 00000000000..e38782d8c85
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/cssom-view/elementFromPoint-001.html.ini
@@ -0,0 +1,4 @@
+[elementFromPoint-001.html]
+  [CSSOM View - 5 - extensions to the Document interface]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
index 171592fc08f..6ef8bb1049f 100644
--- a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
+++ b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
@@ -2,3 +2,6 @@
   [elementsFromPoint on the root document for points in iframe elements]
     expected: FAIL
 
+  [elementsFromPoint on inner documents]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-invalid-cases.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
deleted file mode 100644
index e181af5397f..00000000000
--- a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[elementsFromPoint-invalid-cases.html]
-  [The root element is the last element returned for otherwise empty queries within the viewport]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/matchMedia-display-none-iframe.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/matchMedia-display-none-iframe.html.ini
deleted file mode 100644
index e6e1f29e274..00000000000
--- a/tests/wpt/metadata-layout-2020/css/cssom-view/matchMedia-display-none-iframe.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[matchMedia-display-none-iframe.html]
-  expected: ERROR
diff --git a/tests/wpt/metadata-layout-2020/custom-elements/reactions/HTMLMediaElement.html.ini b/tests/wpt/metadata-layout-2020/custom-elements/reactions/HTMLMediaElement.html.ini
new file mode 100644
index 00000000000..2ca05f57bb0
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/custom-elements/reactions/HTMLMediaElement.html.ini
@@ -0,0 +1,2 @@
+[HTMLMediaElement.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini b/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini
index 31bf58db11a..b756fa7752a 100644
--- a/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini
@@ -312,18 +312,21 @@
   [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
-  [<iframe>: separate response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
   [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
   [<iframe>: separate response Content-Type: text/plain */*]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
+  [<iframe>: combined response Content-Type: */* text/html]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html;charset=gbk text/plain text/html]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini b/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini
index d2df9b78483..e67f0406fc3 100644
--- a/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini
@@ -53,6 +53,3 @@
   [combined text/javascript ]
     expected: FAIL
 
-  [separate text/javascript x/x]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini
index 30e1b851fd4..70efd28ddfc 100644
--- a/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,3 +11,6 @@
   [X-Content-Type-Options%3A%20nosniff%2C%2C%40%23%24%23%25%25%26%5E%26%5E*()()11!]
     expected: FAIL
 
+  [X-Content-Type-Options%3A%20no%0D%0AX-Content-Type-Options%3A%20nosniff]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
new file mode 100644
index 00000000000..385376c7321
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
@@ -0,0 +1,4 @@
+[traverse_the_history_4.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
index d913fcbb129..3080be9afc0 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
@@ -1,5 +1,5 @@
 [iframe_sandbox_popups_nonescaping-1.html]
-  expected: TIMEOUT
+  expected: CRASH
   [Check that popups from a sandboxed iframe do not escape the sandbox]
     expected: NOTRUN
 
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
index 9eb581fcf1f..0407f0cc2b7 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
@@ -1,5 +1,5 @@
 [iframe_sandbox_popups_nonescaping-2.html]
-  expected: CRASH
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
     expected: NOTRUN
 
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
deleted file mode 100644
index 9f416703229..00000000000
--- a/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[form-double-submit-3.html]
-  [<button> should have the same double-submit protection as <input type=submit>]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/forms/textfieldselection/select-event.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/forms/textfieldselection/select-event.html.ini
new file mode 100644
index 00000000000..dc0bb6acd73
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/semantics/forms/textfieldselection/select-event.html.ini
@@ -0,0 +1,70 @@
+[select-event.html]
+  [input type password: select() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionStart out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: setSelectionRange() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: select() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: selectionStart out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionStart a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: selectionStart a second time (must not fire select)]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini b/tests/wpt/metadata-layout-2020/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini
deleted file mode 100644
index ca460dc6867..00000000000
--- a/tests/wpt/metadata-layout-2020/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[activation-behavior.window.html]
-  [<a> that is not connected should be followed]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/module-delayed.html.ini b/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/module-delayed.html.ini
deleted file mode 100644
index 59a54fe88e4..00000000000
--- a/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/module-delayed.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[module-delayed.html]
-  [async document.write in a module]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
index a56bad443a2..66bd350083b 100644
--- a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
+++ b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
@@ -1,5 +1,4 @@
 [realtimeanalyser-fft-scaling.html]
-  expected: TIMEOUT
   [X 2048-point FFT peak position is not equal to 64. Got 0.]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
index 40fbb9f7887..986f93d5340 100644
--- a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
+++ b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
@@ -446,3 +446,6 @@
   [X SNR (-336.53098362261886 dB) is not greater than or equal to 65.737. Got -336.53098362261886.]
     expected: FAIL
 
+  [X Stitched sine-wave buffers at sample rate 43800 does not equal [0,0.06264832615852356,0.12505052983760834,0.18696144223213196,0.24813786149024963,0.308339387178421,0.36732959747314453,0.4248766601085663,0.480754554271698,0.5347436666488647,0.5866320133209229,0.6362156271934509,0.6832997798919678,0.7276994585990906,0.7692402601242065,0.8077589869499207...\] with an element-wise tolerance of {"absoluteThreshold":0.0038986,"relativeThreshold":0}.\n\tIndex\tActual\t\t\tExpected\t\tAbsError\t\tRelError\t\tTest threshold\n\t[28696\]\t-1.1388579153751666e-22\t9.3139332532882690e-1\t9.3139332532882690e-1\t1.0000000000000000e+0\t3.8985999999999999e-3\n\t[28697\]\t7.0477002859115601e-1\t9.0675884485244751e-1\t2.0198881626129150e-1\t2.2275913536212616e-1\t3.8985999999999999e-3\n\tMax AbsError of 9.3139332532882690e-1 at index of 28696.\n\tMax RelError of 1.0000000000000000e+0 at index of 28696.\n]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/webmessaging/with-ports/017.html.ini b/tests/wpt/metadata-layout-2020/webmessaging/with-ports/017.html.ini
deleted file mode 100644
index 064cf47545b..00000000000
--- a/tests/wpt/metadata-layout-2020/webmessaging/with-ports/017.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[017.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, about:blank]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata-layout-2020/webmessaging/with-ports/018.html.ini b/tests/wpt/metadata-layout-2020/webmessaging/with-ports/018.html.ini
deleted file mode 100644
index 663a1f8fa30..00000000000
--- a/tests/wpt/metadata-layout-2020/webmessaging/with-ports/018.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[018.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, javascript:]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini b/tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini
deleted file mode 100644
index 064cf47545b..00000000000
--- a/tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[017.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, about:blank]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 30b04f58b7d..4ab9fc2cec5 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -105134,7 +105134,7 @@
        ]
       ],
       "fixed-table-layout-017.xht": [
-       "805a2ccf2e94962980366e328cc9f9d22f5dc00c",
+       "c66223537bcb44cab0a72f6585dd40310b0762cf",
        [
         null,
         [
@@ -105147,7 +105147,7 @@
        ]
       ],
       "fixed-table-layout-018.xht": [
-       "8dbbac772d9a939fb0f5a4444c08ed81e545a8c9",
+       "d172b6bfc85e52329c409592d6e19e7b7654d432",
        [
         null,
         [
@@ -105160,7 +105160,7 @@
        ]
       ],
       "fixed-table-layout-019.xht": [
-       "131f85a65c1b978ef8877a6391384d508a9d5ea0",
+       "c2f64ea3e0a075c4c351155b82f982baa80350b3",
        [
         null,
         [
@@ -105173,7 +105173,7 @@
        ]
       ],
       "fixed-table-layout-020.xht": [
-       "831103582df2c03b3961db786a886682ec993e96",
+       "34ba94eef8c59ba9c885fb312a7cd14c80c04c86",
        [
         null,
         [
@@ -105186,7 +105186,7 @@
        ]
       ],
       "fixed-table-layout-021.xht": [
-       "644e7d0a78a0d46985b1a4a5091cfaceeb5cbc84",
+       "b105f755c4cbec80563eae2bf4d996e2554c54b1",
        [
         null,
         [
@@ -105199,7 +105199,7 @@
        ]
       ],
       "fixed-table-layout-022.xht": [
-       "255d7cee57d10a4cd90342dc36a34b9953261445",
+       "31801fd405dfc5ce7b953139fd75f55b1db46f7f",
        [
         null,
         [
@@ -105212,7 +105212,7 @@
        ]
       ],
       "fixed-table-layout-023.xht": [
-       "3e26748aa1f7f6287c611ccdb3551d6587f3c4f2",
+       "10049012596b2a091a8a2910b1196540ced77d5b",
        [
         null,
         [
@@ -253100,6 +253100,19 @@
         {}
        ]
       ],
+      "circle-005.svg": [
+       "2d1fbf92aa71c69d368748ed5d77e4919471ec6c",
+       [
+        null,
+        [
+         [
+          "/svg/geometry/reftests/circle-ref.svg",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
       "ellipse-001.svg": [
        "e6d394de206f8831136dbe916d55166038ee94c2",
        [
@@ -261468,6 +261481,12 @@
      ]
     }
    },
+   "badging": {
+    "META.yml": [
+     "1826b19d02e46a74c0b40795d6786569d3f06ee1",
+     []
+    ]
+   },
    "battery-status": {
     "META.yml": [
      "a069984ddb226b6f07cd5f1408e159634dfec7f4",
@@ -280685,6 +280704,10 @@
     ]
    },
    "content-index": {
+    "META.yml": [
+     "9c88d6e2af9aa18e85ceecb90f085c0c6fffe3f0",
+     []
+    ],
     "resources": {
      "sw.js": [
       "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391",
@@ -283287,7 +283310,7 @@
       []
      ],
      "cookie-helper.sub.js": [
-      "50dcdfc5ecbb6dd023eef9ce64beab5e277db406",
+      "a0ded48f2a82498f1643a6fd35490d08d3559419",
       []
      ],
      "cookie-test.js": [
@@ -283306,6 +283329,10 @@
       "a0aa83558dbb8c027de6d436d0a6af82519b3481",
       []
      ],
+     "dropSameSiteMultiAttribute.py": [
+      "af4fbeeca46baeb99ec6fb0ea00b1bcf46296367",
+      []
+     ],
      "dropSameSiteNone.py": [
       "2d0a837b5d90dbf6ec16a030f2107bdbdb2dc15d",
       []
@@ -283354,6 +283381,10 @@
       "05f096708871c7f12628efcbe8026d371eb812b1",
       []
      ],
+     "setSameSiteMultiAttribute.py": [
+      "988f67f0b05321faf8d5b47b779885c00980424f",
+      []
+     ],
      "setSameSiteNone.py": [
       "446c75eb44735f328d13982d943fa6b1046e2fe8",
       []
@@ -303732,6 +303763,10 @@
      ]
     },
     "css-color-adjust": {
+     "META.yml": [
+      "e72f837c95c06189d2945adedaa02351989590ab",
+      []
+     ],
      "rendering": {
       "dark-color-scheme": {
        "color-scheme-change-checkbox-notref.html": [
@@ -315800,7 +315835,7 @@
        []
       ],
       "test-shared.js": [
-       "da3db7470134e3e8c2bebfd2a42b32acf4e72cb6",
+       "7a1da2e649708a0ed7d6d9dbe76322ce67bd266b",
        []
       ]
      }
@@ -319675,6 +319710,12 @@
       ]
      }
     },
+    "css-size-adjust": {
+     "META.yml": [
+      "399781a705ad5e127ec904734df5ac02adeddf12",
+      []
+     ]
+    },
     "css-sizing": {
      "META.yml": [
       "086e654a8e039f259b5e828d024f808c2e95016b",
@@ -333860,6 +333901,12 @@
      }
     }
    },
+   "custom-state-pseudo-class": {
+    "META.yml": [
+     "ee34d8b900423cdc4de0876f4909c528b835dad6",
+     []
+    ]
+   },
    "density-size-correction": {
     "density-corrected-image-svg-aspect-ratio-ref.html": [
      "fa13136876c88b8e3b32d68c2c0155862151c51b",
@@ -333936,6 +333983,12 @@
      }
     }
    },
+   "deprecation-reporting": {
+    "META.yml": [
+     "57ba808a2e4b1f787988967817391d9ecc397418",
+     []
+    ]
+   },
    "device-memory": {
     "META.yml": [
      "b8dd4761adff3e18b6552d4a8f02abdcd30a3ea6",
@@ -334458,6 +334511,14 @@
       "497ed770bfb6fb367f2eeb1978225bc4d036055b",
       []
      ],
+     "sync-xhr-report-only.html.headers": [
+      "8de201c750893f0f615ccf7fcba1600d1cf5f43f",
+      []
+     ],
+     "sync-xhr-reporting.html.headers": [
+      "ab319fc4ceb1d583a04832d665efb36bc87628a2",
+      []
+     ],
      "unoptimized-image.jpg": [
       "599137a55d710fe6b8d3052c05c81915622ea0d0",
       []
@@ -352122,7 +352183,7 @@
      []
     ],
     "dom.idl": [
-     "9d371fbe7c5f63cec026c237456d1df9beacc36f",
+     "bd8a17a379311b14236159cc67b4ac9958231d21",
      []
     ],
     "element-timing.idl": [
@@ -352702,7 +352763,17 @@
      ]
     }
    },
+   "intervention-reporting": {
+    "META.yml": [
+     "b738239a16f9110ac148b4d3c0bcfecb7eca25bd",
+     []
+    ]
+   },
    "is-input-pending": {
+    "META.yml": [
+     "f0cc50994a4b038c113ca5f481f0a744c3260d8e",
+     []
+    ],
     "README.md": [
      "7994b1a4ec36302942d1a6e6809e15505b727ed9",
      []
@@ -352751,6 +352822,10 @@
     }
    },
    "js-self-profiling": {
+    "META.yml": [
+     "84e5177d5e5e4c0b689038b80f9baaad5baa7f88",
+     []
+    ],
     "__dir__.headers": [
      "35b10bd2ccdbfa99feb96079fafab61346d025ed",
      []
@@ -354834,7 +354909,7 @@
    },
    "network-error-logging": {
     "META.yml": [
-     "bc063177d1d14febb1c4bdb86e70cfdce8ca0b5b",
+     "6c1f88eafc4a6de6e046204373647b93509008fa",
      []
     ],
     "README.md": [
@@ -355237,6 +355312,10 @@
     }
    },
    "origin-policy": {
+    "META.yml": [
+     "9efb2a7d6718d1c98161329470238a165a004824",
+     []
+    ],
     "bad-server": {
      "resources": {
       "subframe-with-bad-header.py": [
@@ -355390,6 +355469,12 @@
      ]
     }
    },
+   "page-lifecycle": {
+    "META.yml": [
+     "8036af19bb9df20e30872a6c954ca4f23dbe9c8c",
+     []
+    ]
+   },
    "page-visibility": {
     "META.yml": [
      "9b9aea8e8b11bf98dd23c8e161e3a7d701da2aba",
@@ -355978,6 +356063,18 @@
      ]
     }
    },
+   "permissions-request": {
+    "META.yml": [
+     "b30db1cfb67de2ed067196f0a71733424dc03ddf",
+     []
+    ]
+   },
+   "permissions-revoke": {
+    "META.yml": [
+     "16203fe4d74624e1b4ac12c9c8b5a79568dc65a2",
+     []
+    ]
+   },
    "picture-in-picture": {
     "META.yml": [
      "8df9be5e5b1961296346b4c98a295acbe0fd97c0",
@@ -359048,6 +359145,12 @@
      ]
     }
    },
+   "savedata": {
+    "META.yml": [
+     "883c3fccf4da9f0fd7fd0bf7391ff86959006561",
+     []
+    ]
+   },
    "screen-capture": {
     "META.yml": [
      "47882d3275f1cc928555045b2def8fc90f6bcdb0",
@@ -359279,6 +359382,10 @@
     ]
    },
    "serial": {
+    "META.yml": [
+     "64938c92982f45c7ef5ad5e6262e1401087c4423",
+     []
+    ],
     "resources": {
      "automation.js": [
       "98f67fb6282ceb866b63a3eb9bfa19d0dc0f1b2d",
@@ -364041,7 +364148,7 @@
       []
      ],
      "serve.py": [
-      "fe0d34b371d2244c1afece8d002d83d7a2b5fb9c",
+      "0a5f16ef57e4740138f14f2e5c1a5fb797af915a",
       []
      ],
      "test_functional.py": [
@@ -371570,7 +371677,7 @@
        []
       ],
       "mpcontext.py": [
-       "2a84e188d39f1300046d9ab07992d679ebab9003",
+       "daade1054cf41689981a50b7ec5d944be1681424",
        []
       ],
       "print_reftest_runner.html": [
@@ -372090,7 +372197,7 @@
        []
       ],
       "test_stash.py": [
-       "f688ac6016c0a0d41b9bf85bb2b9c2ed68f2ad07",
+       "8ca3944cdb0c23ac497f3d514f5869b4c02fce6f",
        []
       ]
      },
@@ -372206,7 +372313,7 @@
    },
    "trusted-types": {
     "META.yml": [
-     "d0743949b6a122d8bd0adf7b1ed0181f0c51429d",
+     "8cc6a43aa12617ff8738ce571814f954454b6666",
      []
     ],
     "default-policy-report-only.tentative.html.headers": [
@@ -372312,6 +372419,12 @@
      []
     ]
    },
+   "ua-client-hints": {
+    "META.yml": [
+     "c994748e0f27bcc75019ad7a20816ee138d15f91",
+     []
+    ]
+   },
    "uievents": {
     "META.yml": [
      "2f1ec58efec10e0dd6374aac05cb926c8cffa3f1",
@@ -373360,6 +373473,12 @@
      ]
     }
    },
+   "web-otp": {
+    "META.yml": [
+     "63f87544a3d98543a2a42394cbea0900a33b0b70",
+     []
+    ]
+   },
    "web-share": {
     "META.yml": [
      "d2eccca6f424e93cc463fafc5a3b16e5a7ecc565",
@@ -374342,6 +374461,12 @@
      []
     ]
    },
+   "webhid": {
+    "META.yml": [
+     "d32b9264cb1b0a8522ce933294ace81fb71e0239",
+     []
+    ]
+   },
    "webmessaging": {
     "META.yml": [
      "95d5071171b5a20cc14a414c97c9eae2f525f43f",
@@ -374575,6 +374700,10 @@
     ]
    },
    "webrtc-insertable-streams": {
+    "META.yml": [
+     "63fc4fc6954e144be205817b3169d277bf88a763",
+     []
+    ],
     "RTCPeerConnection-insertable-streams.js": [
      "87f4394b0b5e42be0ef00f78506eded669010b9f",
      []
@@ -374594,6 +374723,12 @@
      ]
     }
    },
+   "webrtc-priority": {
+    "META.yml": [
+     "a422e814479f03528f90953e574b5017578879d1",
+     []
+    ]
+   },
    "webrtc-stats": {
     "META.yml": [
      "10bcf856eb9258e0845f2fdcb6e08c43ebcdf78a",
@@ -374604,6 +374739,12 @@
      []
     ]
    },
+   "webrtc-svc": {
+    "META.yml": [
+     "17d93c51a9f195f5093882b1934c79f0a0635554",
+     []
+    ]
+   },
    "websockets": {
     "META.yml": [
      "14e23e03a854f4d83caa345d45c5b43f1a68bee3",
@@ -374895,6 +375036,10 @@
     }
    },
    "webtransport": {
+    "META.yml": [
+     "8507bee4ad26006b3542e213c600a59b5b456813",
+     []
+    ],
     "quic": {
      "handlers": {
       "README.md": [
@@ -376925,12 +377070,42 @@
      "13c5d7b595c62394e4593bd0dca142bcd7a21068",
      []
     ],
+    "anchors": {
+     "META.yml": [
+      "0b7f740ac531002086e79b7f57647c62fd5db220",
+      []
+     ]
+    },
+    "ar-module": {
+     "META.yml": [
+      "47e5ea9cd4cd595de3b799f034977f3e336aa565",
+      []
+     ]
+    },
     "dom-overlay": {
      "META.yml": [
       "be2b6e613a1457ca3c14dc854005353636ea23af",
       []
      ]
     },
+    "gamepads-module": {
+     "META.yml": [
+      "a6751571a701f681bef89e09350cbd7a11c90d2f",
+      []
+     ]
+    },
+    "hand-input": {
+     "META.yml": [
+      "caa72f8632b5987ecd245b249c97c81d853c8e6b",
+      []
+     ]
+    },
+    "hit-test": {
+     "META.yml": [
+      "e3f94f05a1ffc60dde730e76faaba8bbb1aae1b1",
+      []
+     ]
+    },
     "layers": {
      "META.yml": [
       "117c1adf021812164c4941a8321c9fc0661f1b67",
@@ -402266,6 +402441,21 @@
        }
       ]
      ],
+     "multiple-samesite-attributes.https.html": [
+      "312fa2a2cc9adeb251a9dbc061cbf150ae3e2c45",
+      [
+       null,
+       {
+        "timeout": "long"
+       }
+      ],
+      [
+       "cookies/samesite/multiple-samesite-attributes.https.html?legacy-samesite",
+       {
+        "timeout": "long"
+       }
+      ]
+     ],
      "sandbox-iframe-nested.https.html": [
       "310f86a44687d5b715106c382afcc246808f5fc7",
       [
@@ -430704,6 +430894,20 @@
        {}
       ]
      ],
+     "sync-xhr-report-only.html": [
+      "a68cf713eebe2fc9d4f4fed04e33a485bfaf6718",
+      [
+       null,
+       {}
+      ]
+     ],
+     "sync-xhr-reporting.html": [
+      "3bcb63459d5987ed7f2add3382c17d9198ac36ad",
+      [
+       null,
+       {}
+      ]
+     ],
      "unsized-media-reporting-tentative.html": [
       "47a36436464e031e18f710330106694b7fa0c182",
       [
@@ -488487,7 +488691,7 @@
         ]
        ],
        "select-event.html": [
-        "af49024aa2bdfaa45f8eb200fad201d915f831a2",
+        "09626a5a5cef0acf4b92bdfcbeece88b6d1693be",
         [
          null,
          {
diff --git a/tests/wpt/metadata/css/cssom-view/CaretPosition-001.html.ini b/tests/wpt/metadata/css/cssom-view/CaretPosition-001.html.ini
new file mode 100644
index 00000000000..4c79907309b
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom-view/CaretPosition-001.html.ini
@@ -0,0 +1,4 @@
+[CaretPosition-001.html]
+  [Element at (400, 100)]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/cssom-view/elementFromPoint-001.html.ini b/tests/wpt/metadata/css/cssom-view/elementFromPoint-001.html.ini
new file mode 100644
index 00000000000..e38782d8c85
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom-view/elementFromPoint-001.html.ini
@@ -0,0 +1,4 @@
+[elementFromPoint-001.html]
+  [CSSOM View - 5 - extensions to the Document interface]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
index 171592fc08f..6ef8bb1049f 100644
--- a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
+++ b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
@@ -2,3 +2,6 @@
   [elementsFromPoint on the root document for points in iframe elements]
     expected: FAIL
 
+  [elementsFromPoint on inner documents]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-invalid-cases.html.ini b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
deleted file mode 100644
index e181af5397f..00000000000
--- a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[elementsFromPoint-invalid-cases.html]
-  [The root element is the last element returned for otherwise empty queries within the viewport]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini b/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini
deleted file mode 100644
index e6e1f29e274..00000000000
--- a/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[matchMedia-display-none-iframe.html]
-  expected: ERROR
diff --git a/tests/wpt/metadata/custom-elements/reactions/HTMLMediaElement.html.ini b/tests/wpt/metadata/custom-elements/reactions/HTMLMediaElement.html.ini
new file mode 100644
index 00000000000..2ca05f57bb0
--- /dev/null
+++ b/tests/wpt/metadata/custom-elements/reactions/HTMLMediaElement.html.ini
@@ -0,0 +1,2 @@
+[HTMLMediaElement.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/metadata/fetch/content-type/response.window.js.ini b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
index fe1c02ce748..5b3157dfbc1 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -312,18 +312,21 @@
   [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
-  [<iframe>: separate response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
   [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
   [<iframe>: separate response Content-Type: text/plain */*]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
+  [<iframe>: combined response Content-Type: */* text/html]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html;charset=gbk text/plain text/html]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/content-type/script.window.js.ini b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
index d2df9b78483..e67f0406fc3 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -53,6 +53,3 @@
   [combined text/javascript ]
     expected: FAIL
 
-  [separate text/javascript x/x]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
index 30e1b851fd4..70efd28ddfc 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,3 +11,6 @@
   [X-Content-Type-Options%3A%20nosniff%2C%2C%40%23%24%23%25%25%26%5E%26%5E*()()11!]
     expected: FAIL
 
+  [X-Content-Type-Options%3A%20no%0D%0AX-Content-Type-Options%3A%20nosniff]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
new file mode 100644
index 00000000000..385376c7321
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
@@ -0,0 +1,4 @@
+[traverse_the_history_4.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
index 9df1ac56f2a..963d4cd20ef 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
@@ -1,6 +1,6 @@
 [iframe_sandbox_popups_nonescaping-1.html]
   type: testharness
-  expected: TIMEOUT
+  expected: CRASH
   [Check that popups from a sandboxed iframe do not escape the sandbox]
     expected: NOTRUN
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
index 45d8be1c898..d43f38b40cd 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
@@ -1,6 +1,6 @@
 [iframe_sandbox_popups_nonescaping-2.html]
   type: testharness
-  expected: CRASH
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
     expected: NOTRUN
 
diff --git a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
deleted file mode 100644
index 9f416703229..00000000000
--- a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[form-double-submit-3.html]
-  [<button> should have the same double-submit protection as <input type=submit>]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/semantics/forms/textfieldselection/select-event.html.ini b/tests/wpt/metadata/html/semantics/forms/textfieldselection/select-event.html.ini
new file mode 100644
index 00000000000..dc0bb6acd73
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/forms/textfieldselection/select-event.html.ini
@@ -0,0 +1,70 @@
+[select-event.html]
+  [input type password: select() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionStart out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: setSelectionRange() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: select() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: selectionStart out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: setSelectionRange out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionStart a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type password: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: selectionStart a second time (must not fire select)]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini b/tests/wpt/metadata/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini
deleted file mode 100644
index ca460dc6867..00000000000
--- a/tests/wpt/metadata/html/semantics/links/following-hyperlinks/activation-behavior.window.js.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[activation-behavior.window.html]
-  [<a> that is not connected should be followed]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/module-delayed.html.ini b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/module-delayed.html.ini
deleted file mode 100644
index 59a54fe88e4..00000000000
--- a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/module-delayed.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[module-delayed.html]
-  [async document.write in a module]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
index a56bad443a2..66bd350083b 100644
--- a/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
@@ -1,5 +1,4 @@
 [realtimeanalyser-fft-scaling.html]
-  expected: TIMEOUT
   [X 2048-point FFT peak position is not equal to 64. Got 0.]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
index 46a6fdf1ade..0da477df70d 100644
--- a/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
@@ -674,3 +674,6 @@
   [X SNR (-336.53098362261886 dB) is not greater than or equal to 65.737. Got -336.53098362261886.]
     expected: FAIL
 
+  [X Stitched sine-wave buffers at sample rate 43800 does not equal [0,0.06264832615852356,0.12505052983760834,0.18696144223213196,0.24813786149024963,0.308339387178421,0.36732959747314453,0.4248766601085663,0.480754554271698,0.5347436666488647,0.5866320133209229,0.6362156271934509,0.6832997798919678,0.7276994585990906,0.7692402601242065,0.8077589869499207...\] with an element-wise tolerance of {"absoluteThreshold":0.0038986,"relativeThreshold":0}.\n\tIndex\tActual\t\t\tExpected\t\tAbsError\t\tRelError\t\tTest threshold\n\t[28696\]\t-1.1388579153751666e-22\t9.3139332532882690e-1\t9.3139332532882690e-1\t1.0000000000000000e+0\t3.8985999999999999e-3\n\t[28697\]\t7.0477002859115601e-1\t9.0675884485244751e-1\t2.0198881626129150e-1\t2.2275913536212616e-1\t3.8985999999999999e-3\n\tMax AbsError of 9.3139332532882690e-1 at index of 28696.\n\tMax RelError of 1.0000000000000000e+0 at index of 28696.\n]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webmessaging/with-ports/017.html.ini b/tests/wpt/metadata/webmessaging/with-ports/017.html.ini
deleted file mode 100644
index 064cf47545b..00000000000
--- a/tests/wpt/metadata/webmessaging/with-ports/017.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[017.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, about:blank]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/webmessaging/with-ports/018.html.ini b/tests/wpt/metadata/webmessaging/with-ports/018.html.ini
deleted file mode 100644
index 663a1f8fa30..00000000000
--- a/tests/wpt/metadata/webmessaging/with-ports/018.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[018.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, javascript:]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/webmessaging/without-ports/017.html.ini b/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
deleted file mode 100644
index 064cf47545b..00000000000
--- a/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[017.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, about:blank]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/web-platform-tests/badging/META.yml b/tests/wpt/web-platform-tests/badging/META.yml
new file mode 100644
index 00000000000..1826b19d02e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/badging/META.yml
@@ -0,0 +1 @@
+spec: https://w3c.github.io/badging/
diff --git a/tests/wpt/web-platform-tests/content-index/META.yml b/tests/wpt/web-platform-tests/content-index/META.yml
new file mode 100644
index 00000000000..9c88d6e2af9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/content-index/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/content-index/spec/
diff --git a/tests/wpt/web-platform-tests/cookies/resources/cookie-helper.sub.js b/tests/wpt/web-platform-tests/cookies/resources/cookie-helper.sub.js
index 50dcdfc5ecb..a0ded48f2a8 100644
--- a/tests/wpt/web-platform-tests/cookies/resources/cookie-helper.sub.js
+++ b/tests/wpt/web-platform-tests/cookies/resources/cookie-helper.sub.js
@@ -299,6 +299,28 @@ function resetSameSiteNoneCookies(origin, value) {
     })
 }
 
+// Reset test cookies with multiple SameSite attributes on |origin|.
+// If |origin| matches `self.origin`, assert (via `document.cookie`)
+// that they were properly removed.
+function resetSameSiteMultiAttributeCookies(origin, value) {
+  return credFetch(origin + "/cookies/resources/dropSameSiteMultiAttribute.py")
+    .then(_ => {
+      if (origin == self.origin) {
+        assert_dom_cookie("samesite_unsupported", value, false);
+        assert_dom_cookie("samesite_unsupported_none", value, false);
+        assert_dom_cookie("samesite_unsupported_lax", value, false);
+        assert_dom_cookie("samesite_unsupported_strict", value, false);
+        assert_dom_cookie("samesite_none_unsupported", value, false);
+        assert_dom_cookie("samesite_lax_unsupported", value, false);
+        assert_dom_cookie("samesite_strict_unsupported", value, false);
+        assert_dom_cookie("samesite_lax_none", value, false);
+      }
+    })
+    .then(_ => {
+      return credFetch(origin + "/cookies/resources/setSameSiteMultiAttribute.py?" + value);
+    })
+}
+
 //
 // DOM based cookie manipulation APIs
 //
diff --git a/tests/wpt/web-platform-tests/cookies/resources/dropSameSiteMultiAttribute.py b/tests/wpt/web-platform-tests/cookies/resources/dropSameSiteMultiAttribute.py
new file mode 100644
index 00000000000..af4fbeeca46
--- /dev/null
+++ b/tests/wpt/web-platform-tests/cookies/resources/dropSameSiteMultiAttribute.py
@@ -0,0 +1,17 @@
+from cookies.resources.helpers import makeDropCookie, setNoCacheAndCORSHeaders
+
+def main(request, response):
+    """Respond to `/cookies/resources/dropSameSiteMultiAttribute.py by dropping
+    the cookies set by setSameSiteMultiAttribute.py"""
+    headers = setNoCacheAndCORSHeaders(request, response)
+
+    # Expire the cookies, and return a JSON-encoded success code.
+    headers.append(makeDropCookie(b"samesite_unsupported", True))
+    headers.append(makeDropCookie(b"samesite_unsupported_none", True))
+    headers.append(makeDropCookie(b"samesite_unsupported_lax", False))
+    headers.append(makeDropCookie(b"samesite_unsupported_strict", False))
+    headers.append(makeDropCookie(b"samesite_none_unsupported", True))
+    headers.append(makeDropCookie(b"samesite_lax_unsupported", True))
+    headers.append(makeDropCookie(b"samesite_strict_unsupported", True))
+    headers.append(makeDropCookie(b"samesite_lax_none", True))
+    return headers, b'{"success": true}'
diff --git a/tests/wpt/web-platform-tests/cookies/resources/setSameSiteMultiAttribute.py b/tests/wpt/web-platform-tests/cookies/resources/setSameSiteMultiAttribute.py
new file mode 100644
index 00000000000..988f67f0b05
--- /dev/null
+++ b/tests/wpt/web-platform-tests/cookies/resources/setSameSiteMultiAttribute.py
@@ -0,0 +1,60 @@
+from cookies.resources.helpers import makeCookieHeader, setNoCacheAndCORSHeaders
+
+from wptserve.utils import isomorphic_encode
+
+def main(request, response):
+    """Respond to `/cookie/set/samesite?{value}` by setting the following combination of cookies:
+    1. `samesite_unsupported={value};SameSite=Unsupported;path=/;Secure`
+    2. `samesite_unsupported_none={value};SameSite=Unsupported;SameSite=None;path=/;Secure`
+    3. `samesite_unsupported_lax={value};SameSite=Unsupported;SameSite=Lax;path=/`
+    4. `samesite_unsupported_strict={value};SameSite=Unsupported;SameSite=Strict;path=/`
+    5. `samesite_none_unsupported={value};SameSite=None;SameSite=Unsupported;path=/;Secure`
+    6. `samesite_lax_unsupported={value};SameSite=Lax;SameSite=Unsupported;path=/;Secure`
+    7. `samesite_strict_unsupported={value};SameSite=Strict;SameSite=Unsupported;path=/;Secure`
+    8. `samesite_lax_none={value};SameSite=Lax;SameSite=None;path=/;Secure`
+    9. `samesite_lax_strict={value};SameSite=Lax;SameSite=Strict;path=/`
+    10. `samesite_strict_lax={value};SameSite=Strict;SameSite=Lax;path=/`
+    Then navigate to a page that will post a message back to the opener with the set cookies"""
+    headers = setNoCacheAndCORSHeaders(request, response)
+    value = isomorphic_encode(request.url_parts.query)
+
+    headers.append((b"Content-Type", b"text/html; charset=utf-8"))
+    # Unknown value; single attribute
+    headers.append(makeCookieHeader(
+        b"samesite_unsupported", value, {b"SameSite":b"Unsupported", b"path":b"/", b"Secure":b""}))
+
+    # Multiple attributes; first attribute unknown
+    headers.append(makeCookieHeader(
+        b"samesite_unsupported_none", value, {b"SameSite":b"Unsupported", b"SameSite":b"None", b"path":b"/", b"Secure":b""}))
+    headers.append(makeCookieHeader(
+        b"samesite_unsupported_lax", value, {b"SameSite":b"Unsupported", b"SameSite":b"Lax", b"path":b"/"}))
+    headers.append(makeCookieHeader(
+        b"samesite_unsupported_strict", value, {b"SameSite":b"Unsupported", b"SameSite":b"Strict", b"path":b"/"}))
+
+    # Multiple attributes; second attribute unknown
+    headers.append(makeCookieHeader(
+        b"samesite_none_unsupported", value, {b"SameSite":b"None", b"SameSite":b"Unsupported", b"path":b"/", b"Secure":b""}))
+    headers.append(makeCookieHeader(
+        b"samesite_lax_unsupported", value, {b"SameSite":b"Lax", b"SameSite":b"Unsupported", b"path":b"/", b"Secure":b""}))
+    headers.append(makeCookieHeader(
+        b"samesite_strict_unsupported", value, {b"SameSite":b"Strict", b"SameSite":b"Unsupported", b"path":b"/", b"Secure":b""}))
+
+    # Multiple attributes; both known
+    headers.append(makeCookieHeader(
+        b"samesite_lax_none", value, {b"SameSite":b"Lax", b"SameSite":b"None", b"path":b"/", b"Secure":b""}))
+    headers.append(makeCookieHeader(
+        b"samesite_lax_strict", value, {b"SameSite":b"Lax", b"SameSite":b"Strict", b"path":b"/"}))
+    headers.append(makeCookieHeader(
+        b"samesite_strict_lax", value, {b"SameSite":b"Strict", b"SameSite":b"Lax", b"path":b"/"}))
+
+    document = b"""
+<!DOCTYPE html>
+<script>
+  // A same-site navigation, which should attach all cookies including SameSite ones.
+  // This is necessary because this page may have been reached via a cross-site navigation, so
+  // we might not have access to some SameSite cookies from here.
+  window.location = "../samesite/resources/echo-cookies.html";
+</script>
+"""
+
+    return headers, document
diff --git a/tests/wpt/web-platform-tests/cookies/samesite/multiple-samesite-attributes.https.html b/tests/wpt/web-platform-tests/cookies/samesite/multiple-samesite-attributes.https.html
new file mode 100644
index 00000000000..312fa2a2cc9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/cookies/samesite/multiple-samesite-attributes.https.html
@@ -0,0 +1,103 @@
+<!DOCTYPE html>
+<meta charset="utf-8"/>
+<meta name="timeout" content="long">
+<meta name="variant" content="">
+<meta name="variant" content="?legacy-samesite">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/cookies/resources/cookie-helper.sub.js"></script>
+<script>
+  function assert_cookie_present(origin, name, value) {
+    return new Promise((resolve, reject) => {
+      var img = document.createElement("img");
+      img.onload = _ => resolve("'" + name + "=" + value + "' present on " + origin);
+      img.onerror = _ => reject("'" + name + "=" + value + "' not present on " + origin);
+
+      // We need to URL encode the destination path/query if we're redirecting:
+      if (origin.match(/\/redir/))
+        img.src = origin + encodeURIComponent("/cookies/resources/imgIfMatch.py?name=" + name + "&value=" + value);
+      else
+        img.src = origin + "/cookies/resources/imgIfMatch.py?name=" + name + "&value=" + value;
+    });
+  }
+
+  function assert_cookie_absent(origin, name, value) {
+    return new Promise((resolve, reject) => {
+      var img = document.createElement("img");
+      img.onload = _ => reject("'" + name + "=" + value + "' present on " + origin);
+      img.onerror = _ => resolve("'" + name + "=" + value + "' not present on " + origin);
+
+      // We need to URL encode the destination path/query if we're redirecting:
+      if (origin.match(/\/redir/))
+        img.src = origin + encodeURIComponent("/cookies/resources/imgIfMatch.py?name=" + name + "&value=" + value);
+      else
+        img.src = origin + "/cookies/resources/imgIfMatch.py?name=" + name + "&value=" + value;
+    });
+  }
+
+  function create_test(origin, target, expectedStatus, title) {
+    promise_test(t => {
+      var value = "" + Math.random();
+      return resetSameSiteMultiAttributeCookies(origin, value)
+        .then(_ => {
+          var asserts = [
+            assert_cookie_present(target, "samesite_unsupported_none", value),
+            assert_cookie_present(target, "samesite_lax_none", value),
+            expectedStatus == SameSiteStatus.STRICT ?
+              assert_cookie_present(target, "samesite_unsupported_strict", value) :
+              assert_cookie_absent(target, "samesite_unsupported_strict", value),
+            expectedStatus == SameSiteStatus.STRICT ?
+              assert_cookie_present(target, "samesite_lax_strict", value) :
+              assert_cookie_absent(target, "samesite_lax_strict", value),
+            expectedStatus == SameSiteStatus.CROSS_SITE ?
+              assert_cookie_absent(target, "samesite_unsupported_lax", value) :
+              assert_cookie_present(target, "samesite_unsupported_lax", value),
+            expectedStatus == SameSiteStatus.CROSS_SITE ?
+              assert_cookie_absent(target, "samesite_strict_lax", value) :
+              assert_cookie_present(target, "samesite_strict_lax", value)
+          ];
+          if (isLegacySameSite()) {
+            // Legacy behavior: unsupported SameSite value acts like SameSite=None.
+            asserts.push(assert_cookie_present(target, "samesite_none_unsupported", value));
+            asserts.push(assert_cookie_present(target, "samesite_lax_unsupported", value));
+            asserts.push(assert_cookie_present(target, "samesite_strict_unsupported", value));
+            asserts.push(assert_cookie_present(target, "samesite_unsupported", value));
+          } else {
+            asserts.push(expectedStatus == SameSiteStatus.CROSS_SITE ?
+                           assert_cookie_absent(target, "samesite_none_unsupported", value) :
+                           assert_cookie_present(target, "samesite_none_unsupported", value));
+            asserts.push(expectedStatus == SameSiteStatus.CROSS_SITE ?
+                           assert_cookie_absent(target, "samesite_lax_unsupported", value) :
+                           assert_cookie_present(target, "samesite_lax_unsupported", value));
+            asserts.push(expectedStatus == SameSiteStatus.CROSS_SITE ?
+                           assert_cookie_absent(target, "samesite_strict_unsupported", value) :
+                           assert_cookie_present(target, "samesite_strict_unsupported", value));
+            asserts.push(expectedStatus == SameSiteStatus.CROSS_SITE ?
+                           assert_cookie_absent(target, "samesite_unsupported", value) :
+                           assert_cookie_present(target, "samesite_unsupported", value));
+          }
+          return Promise.all(asserts);
+        });
+    }, title);
+  }
+
+  // No redirect:
+  create_test(SECURE_ORIGIN, SECURE_ORIGIN, SameSiteStatus.STRICT, "Same-host images are strictly same-site");
+  create_test(SECURE_SUBDOMAIN_ORIGIN, SECURE_SUBDOMAIN_ORIGIN, SameSiteStatus.STRICT, "Subdomain images are strictly same-site");
+  create_test(SECURE_CROSS_SITE_ORIGIN, SECURE_CROSS_SITE_ORIGIN, SameSiteStatus.CROSS_SITE, "Cross-site images are cross-site");
+
+  // Redirect from {same-host,subdomain,cross-site} to same-host:
+  create_test(SECURE_ORIGIN, redirectTo(SECURE_ORIGIN, SECURE_ORIGIN), SameSiteStatus.STRICT, "Same-host redirecting to same-host images are strictly same-site");
+  create_test(SECURE_ORIGIN, redirectTo(SECURE_SUBDOMAIN_ORIGIN, SECURE_ORIGIN), SameSiteStatus.STRICT, "Subdomain redirecting to same-host images are strictly same-site");
+  create_test(SECURE_ORIGIN, redirectTo(SECURE_CROSS_SITE_ORIGIN, SECURE_ORIGIN), SameSiteStatus.STRICT, "Cross-site redirecting to same-host images are strictly same-site");
+
+  // Redirect from {same-host,subdomain,cross-site} to same-host:
+  create_test(SECURE_SUBDOMAIN_ORIGIN, redirectTo(SECURE_ORIGIN, SECURE_SUBDOMAIN_ORIGIN), SameSiteStatus.STRICT, "Same-host redirecting to subdomain images are strictly same-site");
+  create_test(SECURE_SUBDOMAIN_ORIGIN, redirectTo(SECURE_SUBDOMAIN_ORIGIN, SECURE_SUBDOMAIN_ORIGIN), SameSiteStatus.STRICT, "Subdomain redirecting to subdomain images are strictly same-site");
+  create_test(SECURE_SUBDOMAIN_ORIGIN, redirectTo(SECURE_CROSS_SITE_ORIGIN, SECURE_SUBDOMAIN_ORIGIN), SameSiteStatus.STRICT, "Cross-site redirecting to subdomain images are strictly same-site");
+
+  // Redirect from {same-host,subdomain,cross-site} to cross-site:
+  create_test(SECURE_CROSS_SITE_ORIGIN, redirectTo(SECURE_ORIGIN, SECURE_CROSS_SITE_ORIGIN), SameSiteStatus.CROSS_SITE, "Same-host redirecting to cross-site images are cross-site");
+  create_test(SECURE_CROSS_SITE_ORIGIN, redirectTo(SECURE_SUBDOMAIN_ORIGIN, SECURE_CROSS_SITE_ORIGIN), SameSiteStatus.CROSS_SITE, "Subdomain redirecting to cross-site images are cross-site");
+  create_test(SECURE_CROSS_SITE_ORIGIN, redirectTo(SECURE_CROSS_SITE_ORIGIN, SECURE_CROSS_SITE_ORIGIN), SameSiteStatus.CROSS_SITE, "Cross-site redirecting to cross-site images are cross-site");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-017.xht b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-017.xht
index 805a2ccf2e9..c66223537bc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-017.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-017.xht
@@ -9,12 +9,13 @@
   <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
   <link rel="help" href="http://www.w3.org/TR/CSS21/tables.html#fixed-table-layout" title="17.5.2.1 Fixed table layout" />
   <link rel="match" href="fixed-table-layout-017-ref.xht" />
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 
   <meta content="" name="flags" />
   <meta content="A column with a percentage width in a 'table-layout: fixed' table can be calculated and predicted when in 'border-collapse: separate' model." name="assert" />
 
   <style type="text/css"><![CDATA[
-  table, div {font: 1.25em/1 serif;}
+  table, div {font: 1.25em/1 Ahem;}
 
   table
   {
diff --git a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-018.xht b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-018.xht
index 8dbbac772d9..d172b6bfc85 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-018.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-018.xht
@@ -9,12 +9,13 @@
   <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
   <link rel="help" href="http://www.w3.org/TR/CSS21/tables.html#fixed-table-layout" title="17.5.2.1 Fixed table layout" />
   <link rel="match" href="fixed-table-layout-017-ref.xht" />
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 
   <meta content="" name="flags" />
   <meta content="A column with a percentage width in a 'table-layout: fixed' table can be calculated and predicted when in 'border-collapse: separate' model." name="assert" />
 
   <style type="text/css"><![CDATA[
-  table, div {font: 1.25em/1 serif;}
+  table, div {font: 1.25em/1 Ahem;}
 
   table
   {
diff --git a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-019.xht b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-019.xht
index 131f85a65c1..c2f64ea3e0a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-019.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-019.xht
@@ -9,12 +9,13 @@
   <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
   <link rel="help" href="http://www.w3.org/TR/CSS21/tables.html#fixed-table-layout" title="17.5.2.1 Fixed table layout" />
   <link rel="match" href="fixed-table-layout-017-ref.xht" />
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 
   <meta content="" name="flags" />
   <meta content="A column with a percentage width in a 'table-layout: fixed' table can be calculated and predicted when in 'border-collapse: separate' model." name="assert" />
 
   <style type="text/css"><![CDATA[
-  table, div {font: 1.25em/1 serif;}
+  table, div {font: 1.25em/1 Ahem;}
 
   table
   {
diff --git a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-020.xht b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-020.xht
index 831103582df..34ba94eef8c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-020.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-020.xht
@@ -9,12 +9,13 @@
   <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
   <link rel="help" href="http://www.w3.org/TR/CSS21/tables.html#fixed-table-layout" title="17.5.2.1 Fixed table layout" />
   <link rel="match" href="fixed-table-layout-017-ref.xht" />
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 
   <meta content="" name="flags" />
   <meta content="A column with a percentage width in a 'table-layout: fixed' table can be calculated, predicted, rendered." name="assert" />
 
   <style type="text/css"><![CDATA[
-  table, div {font: 1.25em/1 serif;}
+  table, div {font: 1.25em/1 Ahem;}
 
   table
   {
diff --git a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-021.xht b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-021.xht
index 644e7d0a78a..b105f755c4c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-021.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-021.xht
@@ -9,12 +9,13 @@
   <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
   <link rel="help" href="http://www.w3.org/TR/CSS21/tables.html#fixed-table-layout" title="17.5.2.1 Fixed table layout" />
   <link rel="match" href="fixed-table-layout-021-ref.xht" />
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 
   <meta content="" name="flags" />
   <meta content="A column with a percentage width in a 'table-layout: fixed' table can be calculated, predicted, rendered." name="assert" />
 
   <style type="text/css"><![CDATA[
-  table, div {font: 1.25em/1 serif;}
+  table, div {font: 1.25em/1 Ahem;}
 
   table
   {
@@ -150,19 +151,19 @@
     <col></col>
 
     <tr>
-      <td id="first-cell">1st</td>
-      <td id="second-cell">2nd</td>
-      <td id="third-cell">3rd</td>
+      <td id="first-cell">1</td>
+      <td id="second-cell">2</td>
+      <td id="third-cell">3</td>
       <td></td>
     </tr>
 
   </table>
 
-  <div id="reference1st">ref</div>
+  <div id="reference1st">r</div>
 
-  <div id="reference2nd">ref</div>
+  <div id="reference2nd">r</div>
 
-  <div id="reference3rd">ref</div>
+  <div id="reference3rd">r</div>
 
  </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-022.xht b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-022.xht
index 255d7cee57d..31801fd405d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-022.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-022.xht
@@ -9,12 +9,13 @@
   <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
   <link rel="help" href="http://www.w3.org/TR/CSS21/tables.html#fixed-table-layout" title="17.5.2.1 Fixed table layout" />
   <link rel="match" href="fixed-table-layout-022-ref.xht" />
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 
   <meta content="" name="flags" />
   <meta content="A column with a percentage width in a 'table-layout: fixed' table can be calculated, predicted, rendered." name="assert" />
 
   <style type="text/css"><![CDATA[
-  table, div {font: 1.25em/1 serif;}
+  table, div {font: 1.25em/1 Ahem;}
 
   table
   {
@@ -181,21 +182,21 @@
     <col id="fourth"></col>
 
     <tr>
-      <td id="first-cell">1st</td>
-      <td id="second-cell">2nd</td>
-      <td id="third-cell">3rd</td>
-      <td id="fourth-cell">4th</td>
+      <td id="first-cell">1</td>
+      <td id="second-cell">2</td>
+      <td id="third-cell">3</td>
+      <td id="fourth-cell">4</td>
     </tr>
 
   </table>
 
-  <div id="reference1st">ref</div>
+  <div id="reference1st">r</div>
 
-  <div id="reference2nd">ref</div>
+  <div id="reference2nd">r</div>
 
-  <div id="reference3rd">ref</div>
+  <div id="reference3rd">r</div>
 
-  <div id="reference4th">ref</div>
+  <div id="reference4th">r</div>
 
  </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-023.xht b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-023.xht
index 3e26748aa1f..10049012596 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-023.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/tables/fixed-table-layout-023.xht
@@ -9,6 +9,7 @@
   <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
   <link rel="help" href="http://www.w3.org/TR/CSS21/tables.html#fixed-table-layout" title="17.5.2.1 Fixed table layout" />
   <link rel="match" href="fixed-table-layout-023-ref.xht" />
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 
   <meta content="" name="flags" />
   <meta content="A column with a percentage width in a 'table-layout: fixed' table can be calculated, predicted, rendered." name="assert" />
@@ -20,7 +21,7 @@
   width: 640px;
   }
 
-  table, div {font: 1.25em/1 serif;}
+  table, div {font: 1.25em/1 Ahem;}
 
   table
   {
@@ -187,21 +188,21 @@
     <col id="fourth"></col>
 
     <tr>
-      <td id="first-cell">1st</td>
-      <td id="second-cell">2nd</td>
-      <td id="third-cell">3rd</td>
-      <td id="fourth-cell">4th</td>
+      <td id="first-cell">1</td>
+      <td id="second-cell">2</td>
+      <td id="third-cell">3</td>
+      <td id="fourth-cell">4</td>
     </tr>
 
   </table>
 
-  <div id="reference1st">ref</div>
+  <div id="reference1st">r</div>
 
-  <div id="reference2nd">ref</div>
+  <div id="reference2nd">r</div>
 
-  <div id="reference3rd">ref</div>
+  <div id="reference3rd">r</div>
 
-  <div id="reference4th">ref</div>
+  <div id="reference4th">r</div>
 
  </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-color-adjust/META.yml b/tests/wpt/web-platform-tests/css/css-color-adjust/META.yml
new file mode 100644
index 00000000000..e72f837c95c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-color-adjust/META.yml
@@ -0,0 +1 @@
+spec: https://drafts.csswg.org/css-color-adjust/
diff --git a/tests/wpt/web-platform-tests/css/css-logical/resources/test-shared.js b/tests/wpt/web-platform-tests/css/css-logical/resources/test-shared.js
index da3db747013..7a1da2e6497 100644
--- a/tests/wpt/web-platform-tests/css/css-logical/resources/test-shared.js
+++ b/tests/wpt/web-platform-tests/css/css-logical/resources/test-shared.js
@@ -69,6 +69,27 @@ export const writingModes = [
     block: "horizontal", inline: "vertical" },
 ];
 
+// Check if logical properties work well in WebKit non-standard
+// '-webkit-writing-mode: horizontal-bt' mode
+if (CSS.supports("-webkit-writing-mode", "horizontal-bt")) {
+  writingModes.push (
+  {
+    styles: [
+      {"-webkit-writing-mode": "horizontal-bt", "direction": "ltr"},
+    ],
+    blockStart: "bottom", blockEnd: "top", inlineStart: "left", inlineEnd: "right",
+    over: "top", under: "bottom", lineLeft: "left", lineRight: "right",
+    block: "vertical", inline: "horizontal" },
+  {
+    styles: [
+      {"-webkit-writing-mode": "horizontal-bt", "direction": "rtl"},
+    ],
+    blockStart: "bottom", blockEnd: "top", inlineStart: "right", inlineEnd: "left",
+    over: "top", under: "bottom", lineLeft: "left", lineRight: "right",
+    block: "vertical", inline: "horizontal" },
+  )
+}
+
 export function testCSSValues(testName, style, expectedValues) {
   for (const [property, value] of expectedValues) {
     assert_equals(style.getPropertyValue(property), value, `${testName}, ${property}`);
diff --git a/tests/wpt/web-platform-tests/css/css-size-adjust/META.yml b/tests/wpt/web-platform-tests/css/css-size-adjust/META.yml
new file mode 100644
index 00000000000..399781a705a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-size-adjust/META.yml
@@ -0,0 +1 @@
+spec: https://drafts.csswg.org/css-size-adjust/
diff --git a/tests/wpt/web-platform-tests/custom-state-pseudo-class/META.yml b/tests/wpt/web-platform-tests/custom-state-pseudo-class/META.yml
new file mode 100644
index 00000000000..ee34d8b9004
--- /dev/null
+++ b/tests/wpt/web-platform-tests/custom-state-pseudo-class/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/custom-state-pseudo-class/
diff --git a/tests/wpt/web-platform-tests/deprecation-reporting/META.yml b/tests/wpt/web-platform-tests/deprecation-reporting/META.yml
new file mode 100644
index 00000000000..57ba808a2e4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/deprecation-reporting/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/deprecation-reporting/
diff --git a/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-report-only.html b/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-report-only.html
new file mode 100644
index 00000000000..a68cf713eeb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-report-only.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <script src='/resources/testharness.js'></script>
+    <script src='/resources/testharnessreport.js'></script>
+  </head>
+  <body>
+    <script>
+const check_report_format = ([reports, observer]) => {
+  const report = reports[0];
+  assert_equals(report.type, "document-policy-violation");
+  assert_equals(report.body.featureId, "sync-xhr");
+  assert_equals(report.body.disposition, "report");
+};
+
+promise_test(async t => {
+  const report = new Promise(resolve => {
+    new ReportingObserver((reports, observer) => resolve([reports, observer]),
+                          {types: ['document-policy-violation']}).observe();
+  });
+  const xhr = new XMLHttpRequest();
+  xhr.open("GET", document.location.href, false);
+  xhr.send();
+  check_report_format(await report);
+}, "Sync-xhr report only mode");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-report-only.html.headers b/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-report-only.html.headers
new file mode 100644
index 00000000000..8de201c7508
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-report-only.html.headers
@@ -0,0 +1 @@
+Document-Policy-Report-Only: sync-xhr=?0
diff --git a/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-reporting.html b/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-reporting.html
new file mode 100644
index 00000000000..3bcb63459d5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-reporting.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <script src='/resources/testharness.js'></script>
+    <script src='/resources/testharnessreport.js'></script>
+    <script src='../resources/document-policy-report-json.js'></script>
+  </head>
+  <body>
+    <script>
+var t = async_test("Sync-xhr Report Format");
+
+var check_report_format = (reports, observer) => {
+  let report = reports[0];
+  assert_equals(report.type, "document-policy-violation");
+  assert_equals(report.url, document.location.href);
+  assert_equals(report.body.featureId, "sync-xhr");
+  assert_equals(report.body.sourceFile, document.location.href);
+  assert_equals(typeof report.body.lineNumber, "number");
+  assert_equals(typeof report.body.columnNumber, "number");
+  assert_equals(report.body.disposition, "enforce");
+  check_report_json(report);
+};
+
+new ReportingObserver(t.step_func_done(check_report_format),
+                      {types: ['document-policy-violation']}).observe();
+
+t.step_func(() => {
+  var xhr = new XMLHttpRequest();
+  xhr.open("GET", document.location.href, false);
+  assert_throws_dom('NetworkError',
+    () => xhr.send(),
+    "Synchronous XHR.send should throw an exception when disabled");
+})();
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-reporting.html.headers b/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-reporting.html.headers
new file mode 100644
index 00000000000..ab319fc4ceb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/reporting/sync-xhr-reporting.html.headers
@@ -0,0 +1 @@
+Document-Policy: sync-xhr=?0
diff --git a/tests/wpt/web-platform-tests/html/semantics/forms/textfieldselection/select-event.html b/tests/wpt/web-platform-tests/html/semantics/forms/textfieldselection/select-event.html
index af49024aa2b..09626a5a5ce 100644
--- a/tests/wpt/web-platform-tests/html/semantics/forms/textfieldselection/select-event.html
+++ b/tests/wpt/web-platform-tests/html/semantics/forms/textfieldselection/select-event.html
@@ -44,16 +44,36 @@ const actions = [
   {
     label: "setRangeText()",
     action: el => el.setRangeText("newmiddle", el.selectionStart, el.selectionEnd, "select")
+  },
+  {
+    label: "selectionStart out of range",
+    action: el => el.selectionStart = 1000
+  },
+  {
+    label: "selectionEnd out of range",
+    action: el => el.selectionEnd = 1000
+  },
+  {
+    label: "setSelectionRange out of range",
+    action: el => el.setSelectionRange(1000, 2000)
   }
 ];
 
+function initialize(el) {
+  el.value = "foobar";
+  el.setSelectionRange(0, 0);
+  return new Promise(requestAnimationFrame);
+}
+
 els.forEach((el) => {
   const elLabel = el.localName === "textarea" ? "textarea" : "input type " + el.type;
 
   actions.forEach((action) => {
     // promise_test instead of async_test is important because these need to happen in sequence (to test that events
     // fire if and only if the selection changes).
-    promise_test(t => {
+    promise_test(async t => {
+      await initialize(el);
+
       const watcher = new EventWatcher(t, el, "select");
 
       const promise = watcher.wait_for("select").then(e => {
@@ -92,6 +112,35 @@ els.forEach((el) => {
       // step_wait properly timeouts before the whole test collapses
       await t.step_wait(() => !element.onselect, "event didn't fire", 200, 10);
     }, `${elLabel}: ${action.label} disconnected node`);
+
+    // Intentionally still using promise_test, as assert_unreachable does not
+    // make the test fail inside a listener while t.unreached_func() does.
+    promise_test(async t => {
+      const element = el.cloneNode(true);
+      let fired = false;
+
+      element.onselect = () => fired = true;
+      action.action(element);
+      assert_false(fired, "the select event must not fire synchronously")
+
+      await t.step_wait(() => fired, "event didn't fire", 200, 10);
+    }, `${elLabel}: ${action.label} event queue`);
+
+    promise_test(t => {
+      const element = el.cloneNode(true);
+      assert_equals(element.selectionEnd, 0);
+
+      element.onselect = () => {
+        element.onselect = t.unreached_func("the select event must not fire twice");
+      };
+
+      action.action(element);
+      action.action(element);
+
+      return new Promise(resolve => {
+        t.step_timeout(resolve, 200);
+      });
+    }, `${elLabel}: ${action.label} twice in disconnected node (must fire select only once)`);
   });
 });
 </script>
diff --git a/tests/wpt/web-platform-tests/interfaces/dom.idl b/tests/wpt/web-platform-tests/interfaces/dom.idl
index 9d371fbe7c5..bd8a17a3793 100644
--- a/tests/wpt/web-platform-tests/interfaces/dom.idl
+++ b/tests/wpt/web-platform-tests/interfaces/dom.idl
@@ -43,7 +43,7 @@ dictionary EventInit {
 };
 
 partial interface Window {
-  [Replaceable] readonly attribute any event; // legacy
+  [Replaceable] readonly attribute (Event or undefined) event; // legacy
 };
 
 [Exposed=(Window,Worker)]
diff --git a/tests/wpt/web-platform-tests/intervention-reporting/META.yml b/tests/wpt/web-platform-tests/intervention-reporting/META.yml
new file mode 100644
index 00000000000..b738239a16f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/intervention-reporting/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/intervention-reporting/
diff --git a/tests/wpt/web-platform-tests/is-input-pending/META.yml b/tests/wpt/web-platform-tests/is-input-pending/META.yml
new file mode 100644
index 00000000000..f0cc50994a4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/is-input-pending/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/is-input-pending/
diff --git a/tests/wpt/web-platform-tests/js-self-profiling/META.yml b/tests/wpt/web-platform-tests/js-self-profiling/META.yml
new file mode 100644
index 00000000000..84e5177d5e5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/js-self-profiling/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/js-self-profiling/
diff --git a/tests/wpt/web-platform-tests/network-error-logging/META.yml b/tests/wpt/web-platform-tests/network-error-logging/META.yml
index bc063177d1d..6c1f88eafc4 100644
--- a/tests/wpt/web-platform-tests/network-error-logging/META.yml
+++ b/tests/wpt/web-platform-tests/network-error-logging/META.yml
@@ -1,2 +1,3 @@
+spec: https://w3c.github.io/network-error-logging/
 suggested_reviewers:
   - dcreager
diff --git a/tests/wpt/web-platform-tests/origin-policy/META.yml b/tests/wpt/web-platform-tests/origin-policy/META.yml
new file mode 100644
index 00000000000..9efb2a7d671
--- /dev/null
+++ b/tests/wpt/web-platform-tests/origin-policy/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/origin-policy/
diff --git a/tests/wpt/web-platform-tests/page-lifecycle/META.yml b/tests/wpt/web-platform-tests/page-lifecycle/META.yml
new file mode 100644
index 00000000000..8036af19bb9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/page-lifecycle/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/page-lifecycle/
diff --git a/tests/wpt/web-platform-tests/permissions-request/META.yml b/tests/wpt/web-platform-tests/permissions-request/META.yml
new file mode 100644
index 00000000000..b30db1cfb67
--- /dev/null
+++ b/tests/wpt/web-platform-tests/permissions-request/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/permissions-request/
diff --git a/tests/wpt/web-platform-tests/permissions-revoke/META.yml b/tests/wpt/web-platform-tests/permissions-revoke/META.yml
new file mode 100644
index 00000000000..16203fe4d74
--- /dev/null
+++ b/tests/wpt/web-platform-tests/permissions-revoke/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/permissions-revoke/
diff --git a/tests/wpt/web-platform-tests/savedata/META.yml b/tests/wpt/web-platform-tests/savedata/META.yml
new file mode 100644
index 00000000000..883c3fccf4d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/savedata/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/savedata/
diff --git a/tests/wpt/web-platform-tests/serial/META.yml b/tests/wpt/web-platform-tests/serial/META.yml
new file mode 100644
index 00000000000..64938c92982
--- /dev/null
+++ b/tests/wpt/web-platform-tests/serial/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/serial/
diff --git a/tests/wpt/web-platform-tests/svg/geometry/reftests/circle-005.svg b/tests/wpt/web-platform-tests/svg/geometry/reftests/circle-005.svg
new file mode 100644
index 00000000000..2d1fbf92aa7
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/geometry/reftests/circle-005.svg
@@ -0,0 +1,24 @@
+<svg width="340" height="140"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <title>Circle coordinates and radius specified by properties</title>
+  <html:link rel="help" href="https://svgwg.org/svg2-draft/geometry.html"/>
+  <html:link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1683652"/>
+  <html:link rel="match"  href="circle-ref.svg"/>
+  <style>
+    circle {
+      cx: 204px;
+      cy: 56px;
+      r: 5px;
+      fill: blue;
+    }
+  </style>
+  <circle />
+  <script><![CDATA[
+    let circle = document.querySelector("circle");
+    circle.parentNode.style.display = "none";
+    circle.getTotalLength();
+    circle.parentNode.style.display = "";
+    circle.style.r = "65px";
+  ]]></script>
+</svg>
diff --git a/tests/wpt/web-platform-tests/tools/serve/serve.py b/tests/wpt/web-platform-tests/tools/serve/serve.py
index fe0d34b371d..0a5f16ef57e 100644
--- a/tests/wpt/web-platform-tests/tools/serve/serve.py
+++ b/tests/wpt/web-platform-tests/tools/serve/serve.py
@@ -6,6 +6,7 @@ import abc
 import argparse
 import json
 import logging
+import multiprocessing
 import os
 import platform
 import signal
@@ -967,11 +968,19 @@ def get_parser():
     return parser
 
 
+class MpContext(object):
+    def __getattr__(self, name):
+        return getattr(multiprocessing, name)
+
+
 def run(config_cls=ConfigBuilder, route_builder=None, mp_context=None, **kwargs):
     received_signal = threading.Event()
 
     if mp_context is None:
-        import multiprocessing as mp_context
+        if hasattr(multiprocessing, "get_context"):
+            mp_context = multiprocessing.get_context()
+        else:
+            mp_context = MpContext()
 
     with build_config(os.path.join(repo_root, "config.json"),
                       config_cls=config_cls,
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/mpcontext.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/mpcontext.py
index 2a84e188d39..daade1054cf 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/mpcontext.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/mpcontext.py
@@ -5,12 +5,17 @@ import six
 _context = None
 
 
+class MpContext(object):
+    def __getattr__(self, name):
+        return getattr(multiprocessing, name)
+
+
 def get_context():
     global _context
 
-    if six.PY2:
-        return multiprocessing
-
     if _context is None:
-        _context = multiprocessing.get_context("spawn")
+        if six.PY2:
+            _context = MpContext()
+        else:
+            _context = multiprocessing.get_context("spawn")
     return _context
diff --git a/tests/wpt/web-platform-tests/tools/wptserve/tests/test_stash.py b/tests/wpt/web-platform-tests/tools/wptserve/tests/test_stash.py
index f688ac6016c..8ca3944cdb0 100644
--- a/tests/wpt/web-platform-tests/tools/wptserve/tests/test_stash.py
+++ b/tests/wpt/web-platform-tests/tools/wptserve/tests/test_stash.py
@@ -1,8 +1,11 @@
 import multiprocessing
 import threading
+import sys
+
 from multiprocessing.managers import BaseManager
 
 import pytest
+from six import PY3
 
 Stash = pytest.importorskip("wptserve.stash").Stash
 
@@ -63,6 +66,9 @@ class SlowLock(BaseManager):
     pass
 
 
+@pytest.mark.xfail(sys.platform == "win32" or
+                   PY3 and multiprocessing.get_start_method() == "spawn",
+                   reason="https://github.com/web-platform-tests/wpt/issues/16938")
 def test_delayed_lock(add_cleanup):
     """Ensure that delays in proxied Lock retrieval do not interfere with
     initialization in parallel threads."""
@@ -103,6 +109,9 @@ class SlowDict(BaseManager):
     pass
 
 
+@pytest.mark.xfail(sys.platform == "win32" or
+                   PY3 and multiprocessing.get_start_method() == "spawn",
+                   reason="https://github.com/web-platform-tests/wpt/issues/16938")
 def test_delayed_dict(add_cleanup):
     """Ensure that delays in proxied `dict` retrieval do not interfere with
     initialization in parallel threads."""
diff --git a/tests/wpt/web-platform-tests/trusted-types/META.yml b/tests/wpt/web-platform-tests/trusted-types/META.yml
index d0743949b6a..8cc6a43aa12 100644
--- a/tests/wpt/web-platform-tests/trusted-types/META.yml
+++ b/tests/wpt/web-platform-tests/trusted-types/META.yml
@@ -1,2 +1,3 @@
+spec: https://w3c.github.io/webappsec-trusted-types/dist/spec/
 suggested_reviewers:
   - mikewest
diff --git a/tests/wpt/web-platform-tests/ua-client-hints/META.yml b/tests/wpt/web-platform-tests/ua-client-hints/META.yml
new file mode 100644
index 00000000000..c994748e0f2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/ua-client-hints/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/ua-client-hints/
diff --git a/tests/wpt/web-platform-tests/web-otp/META.yml b/tests/wpt/web-platform-tests/web-otp/META.yml
new file mode 100644
index 00000000000..63f87544a3d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/web-otp/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/web-otp/
diff --git a/tests/wpt/web-platform-tests/webhid/META.yml b/tests/wpt/web-platform-tests/webhid/META.yml
new file mode 100644
index 00000000000..d32b9264cb1
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webhid/META.yml
@@ -0,0 +1 @@
+spec: https://wicg.github.io/webhid/
diff --git a/tests/wpt/web-platform-tests/webrtc-insertable-streams/META.yml b/tests/wpt/web-platform-tests/webrtc-insertable-streams/META.yml
new file mode 100644
index 00000000000..63fc4fc6954
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webrtc-insertable-streams/META.yml
@@ -0,0 +1 @@
+spec: https://w3c.github.io/webrtc-insertable-streams/
diff --git a/tests/wpt/web-platform-tests/webrtc-priority/META.yml b/tests/wpt/web-platform-tests/webrtc-priority/META.yml
new file mode 100644
index 00000000000..a422e814479
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webrtc-priority/META.yml
@@ -0,0 +1 @@
+spec: https://w3c.github.io/webrtc-priority/
diff --git a/tests/wpt/web-platform-tests/webrtc-svc/META.yml b/tests/wpt/web-platform-tests/webrtc-svc/META.yml
new file mode 100644
index 00000000000..17d93c51a9f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webrtc-svc/META.yml
@@ -0,0 +1 @@
+spec: https://w3c.github.io/webrtc-svc/
diff --git a/tests/wpt/web-platform-tests/webtransport/META.yml b/tests/wpt/web-platform-tests/webtransport/META.yml
new file mode 100644
index 00000000000..8507bee4ad2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webtransport/META.yml
@@ -0,0 +1 @@
+spec: https://w3c.github.io/webtransport/
diff --git a/tests/wpt/web-platform-tests/webxr/anchors/META.yml b/tests/wpt/web-platform-tests/webxr/anchors/META.yml
new file mode 100644
index 00000000000..0b7f740ac53
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webxr/anchors/META.yml
@@ -0,0 +1 @@
+spec: https://immersive-web.github.io/anchors/
diff --git a/tests/wpt/web-platform-tests/webxr/ar-module/META.yml b/tests/wpt/web-platform-tests/webxr/ar-module/META.yml
new file mode 100644
index 00000000000..47e5ea9cd4c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webxr/ar-module/META.yml
@@ -0,0 +1 @@
+spec: https://immersive-web.github.io/webxr-ar-module/
diff --git a/tests/wpt/web-platform-tests/webxr/gamepads-module/META.yml b/tests/wpt/web-platform-tests/webxr/gamepads-module/META.yml
new file mode 100644
index 00000000000..a6751571a70
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webxr/gamepads-module/META.yml
@@ -0,0 +1 @@
+spec: https://immersive-web.github.io/webxr-gamepads-module/
diff --git a/tests/wpt/web-platform-tests/webxr/hand-input/META.yml b/tests/wpt/web-platform-tests/webxr/hand-input/META.yml
new file mode 100644
index 00000000000..caa72f8632b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webxr/hand-input/META.yml
@@ -0,0 +1 @@
+spec: https://immersive-web.github.io/webxr-hand-input/
diff --git a/tests/wpt/web-platform-tests/webxr/hit-test/META.yml b/tests/wpt/web-platform-tests/webxr/hit-test/META.yml
new file mode 100644
index 00000000000..e3f94f05a1f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webxr/hit-test/META.yml
@@ -0,0 +1 @@
+spec: https://immersive-web.github.io/hit-test/