diff --git a/tests/wpt/metadata-layout-2020/css/css-backgrounds/animations/one-element-transition.html.ini b/tests/wpt/metadata-layout-2020/css/css-backgrounds/animations/one-element-transition.html.ini
new file mode 100644
index 00000000000..5f00e603eb0
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-backgrounds/animations/one-element-transition.html.ini
@@ -0,0 +1,2 @@
+[one-element-transition.html]
+  expected: TIMEOUT
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
new file mode 100644
index 00000000000..e181af5397f
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
@@ -0,0 +1,4 @@
+[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/fetch/content-type/response.window.js.ini b/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini
index 0b2fe104e18..c199782c775 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
@@ -315,15 +315,18 @@
   [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<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>: separate response Content-Type: text/html */*]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
+  [<iframe>: combined response Content-Type: text/html */*]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html;x=" text/plain]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     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 e67f0406fc3..d2df9b78483 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
@@ -53,3 +53,6 @@
   [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 58de838d890..1c62485a210 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
@@ -11,6 +11,9 @@
   [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%20%22nosniFF%22]
+  [X-Content-Type-Options%3A%20%2Cnosniff]
+    expected: FAIL
+
+  [Content-Type-Options%3A%20nosniff]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
deleted file mode 100644
index 87b07c3e670..00000000000
--- a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_1.html]
-  [Multiple history traversals from the same task]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/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_3.html.ini
similarity index 71%
rename from tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
rename to tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
index 385376c7321..51f8272a6de 100644
--- a/tests/wpt/metadata/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_3.html.ini
@@ -1,4 +1,4 @@
-[traverse_the_history_4.html]
+[traverse_the_history_3.html]
   [Multiple history traversals, last would be aborted]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
deleted file mode 100644
index dc2e45516de..00000000000
--- a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_5.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/sandboxing/sandbox-inherited-from-initiator-frame.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/sandboxing/sandbox-inherited-from-initiator-frame.html.ini
new file mode 100644
index 00000000000..0ecd27dfc0f
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/browsers/sandboxing/sandbox-inherited-from-initiator-frame.html.ini
@@ -0,0 +1,5 @@
+[sandbox-inherited-from-initiator-frame.html]
+  expected: TIMEOUT
+  [Inherit sandbox flags from the initiator's frame]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini
index 8e2b6af33d8..9a85a905394 100644
--- a/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini
@@ -1,8 +1,7 @@
 [embedded-opener-remove-frame.html]
-  expected: TIMEOUT
   [opener of discarded nested browsing context]
     expected: FAIL
 
   [opener of discarded auxiliary browsing context]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/image-maps/image-map-processing-model/hash-name-reference.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/image-maps/image-map-processing-model/hash-name-reference.html.ini
index 5c3ac06f42a..09ae27d7480 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/image-maps/image-map-processing-model/hash-name-reference.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/image-maps/image-map-processing-model/hash-name-reference.html.ini
@@ -171,3 +171,6 @@
   [XHTML img usemap="#hash-id"]
     expected: FAIL
 
+  [HTML (standards) IMG usemap="no-hash-name"]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
index 338d283eb0e..295031c1812 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,4 +1,5 @@
 [iframe_sandbox_popups_escaping-3.html]
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
-    expected: FAIL
+    expected: TIMEOUT
 
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/forms/form-submission-0/form-double-submit-2.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini
new file mode 100644
index 00000000000..633a99517d3
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini
@@ -0,0 +1,4 @@
+[form-double-submit-2.html]
+  [preventDefault should allow onclick submit() to succeed]
+    expected: FAIL
+
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
new file mode 100644
index 00000000000..9f416703229
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
@@ -0,0 +1,4 @@
+[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
index f7f45771622..fd42ca23672 100644
--- 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
@@ -1,64 +1,70 @@
 [select-event.html]
-  [input type url: setRangeText() a second time (must not fire select)]
-    expected: FAIL
-
   [input type url: setSelectionRange() a second time (must not fire select)]
     expected: FAIL
 
-  [input type tel: selectionDirection a second time (must not fire select)]
-    expected: FAIL
-
   [input type tel: select() a second time (must not fire select)]
     expected: FAIL
 
   [input type password: selectionDirection a second time (must not fire select)]
     expected: FAIL
 
-  [input type url: selectionEnd a second time (must not fire select)]
-    expected: FAIL
-
   [input type url: select() a second time (must not fire select)]
     expected: FAIL
 
   [input type text: setRangeText() a second time (must not fire select)]
     expected: FAIL
 
-  [input type search: setRangeText() a second time (must not fire select)]
-    expected: FAIL
-
   [input type password: select() a second time (must not fire select)]
     expected: FAIL
 
-  [input type password: selectionStart a second time (must not fire select)]
-    expected: FAIL
-
-  [input type text: selectionEnd 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 password: selectionEnd out of range a second time (must not fire select)]
     expected: FAIL
 
-  [input type tel: selectionStart out of range a second time (must not fire select)]
-    expected: FAIL
-
-  [input type search: selectionStart out of range 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 text: selectionDirection a second time (must not fire select)]
-    expected: FAIL
-
   [input type search: selectionDirection a second time (must not fire select)]
     expected: FAIL
 
-  [textarea: setSelectionRange out of range a second time (must not fire select)]
+  [input type url: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: setSelectionRange() 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
+
+  [textarea: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: setSelectionRange() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: selectionStart out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionStart 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: selectionStart a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: selectionStart a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: setSelectionRange out of range 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/iframe_005.html.ini b/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini
deleted file mode 100644
index 6cf9d13975c..00000000000
--- a/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[iframe_005.html]
-  [document.write external script into iframe write back into parent]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini b/tests/wpt/metadata-layout-2020/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
index dbec6f2c2ff..450c88bd32b 100644
--- a/tests/wpt/metadata-layout-2020/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
@@ -3,3 +3,6 @@
   [The incumbent settings object while executing the compiled callback via Web IDL's invoke must be that of the node document]
     expected: TIMEOUT
 
+  [The entry settings object while executing the compiled callback via Web IDL's invoke must be that of the node document]
+    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 39604ef32e6..a5fb3725db8 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
@@ -488,3 +488,9 @@
   [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-4.0587832018260933e-37\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
 
+  [X SNR (-432.8357638048991 dB) is not greater than or equal to 65.737. Got -432.8357638048991.]
+    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-6.5086735184939384e+23\t9.3139332532882690e-1\t6.5086735184939384e+23\t6.9881041032756614e+23\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 6.5086735184939384e+23 at index of 28696.\n\tMax RelError of 6.9881041032756614e+23 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/without-ports/018.html.ini b/tests/wpt/metadata-layout-2020/webmessaging/with-ports/018.html.ini
similarity index 100%
rename from tests/wpt/metadata-layout-2020/webmessaging/without-ports/018.html.ini
rename to tests/wpt/metadata-layout-2020/webmessaging/with-ports/018.html.ini
diff --git a/tests/wpt/metadata-layout-2020/workers/baseurl/alpha/import-in-moduleworker.html.ini b/tests/wpt/metadata-layout-2020/workers/baseurl/alpha/import-in-moduleworker.html.ini
index bfd4d6dd2d6..bf2a1d61bab 100644
--- a/tests/wpt/metadata-layout-2020/workers/baseurl/alpha/import-in-moduleworker.html.ini
+++ b/tests/wpt/metadata-layout-2020/workers/baseurl/alpha/import-in-moduleworker.html.ini
@@ -1,5 +1,4 @@
 [import-in-moduleworker.html]
-  expected: ERROR
   [Base URL in module dedicated workers: import]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/workers/constructors/Worker/Worker-constructor.html.ini b/tests/wpt/metadata-layout-2020/workers/constructors/Worker/Worker-constructor.html.ini
new file mode 100644
index 00000000000..80f9a4f15b8
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/workers/constructors/Worker/Worker-constructor.html.ini
@@ -0,0 +1,2 @@
+[Worker-constructor.html]
+  expected: ERROR
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index cd7ee96aa1d..0a713a07045 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -121707,6 +121707,19 @@
         ],
         {}
        ]
+      ],
+      "one-element-transition.html": [
+       "51d3a968c735f78c3ba2b3f0213ec0d2a989ae15",
+       [
+        null,
+        [
+         [
+          "/css/css-backgrounds/animations/one-element-animation-ref.html",
+          "=="
+         ]
+        ],
+        {}
+       ]
       ]
      },
      "background-334.html": [
@@ -128622,6 +128635,19 @@
        {}
       ]
      ],
+     "out-of-flow-in-multicolumn-013.html": [
+      "3bf06dfc1a779e3034122987a456fb33b2feb36e",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square.xht",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "overflowed-block-with-no-room-after-000.html": [
       "084e16fb38de072fb83f92ba01302a2e404cdd97",
       [
@@ -333872,7 +333898,7 @@
     ],
     "admin": {
      "index.md": [
-      "3073b9678fe890efee20ac122e73d30f0ce7fbb1",
+      "59569fd464c46c2010a48c8c62d8bfdd88b021c1",
       []
      ],
      "pywebsocket3.rst": [
@@ -339877,6 +339903,14 @@
         "b47f0f274ef43148d3be418e2c0628a567f1c3c1",
         []
        ],
+       "sandbox-inherited-from-initiator-response-helper.html": [
+        "29c7f12441f7473d8f7dc5adb9046c764daa7745",
+        []
+       ],
+       "sandbox-inherited-from-initiator-response-helper.html.headers": [
+        "82e8023d0ba61851af5747ee2ccba154193d1875",
+        []
+       ],
        "sandbox-javascript-window-open.html": [
         "909956a54ff52153756f863c3489f4c792b5aaff",
         []
@@ -351341,7 +351375,7 @@
      ],
      "tools": {
       "format_json.py": [
-       "1059ac793aaf2fb5ee875ed9d7e8a02c0040be9e",
+       "6386d418de1199df47a2f97376b7dbb38f4bbb28",
        []
       ]
      }
@@ -363215,7 +363249,7 @@
      []
     ],
     "META.yml": [
-     "3eb893f4e65c3c0e5567688bd30725bc21eb40cb",
+     "bb8ed039dc39ed4105de306302398be25e037f07",
      []
     ],
     "__init__.py": [
@@ -363929,7 +363963,7 @@
      []
     ],
     "requirements_mypy.txt": [
-     "65100d70376cf614b4396dd242181394453efa49",
+     "d5e04b94d534cbb6491aa0a04950c56434725ff2",
      []
     ],
     "runner": {
@@ -371182,7 +371216,7 @@
       ]
      },
      "requirements.txt": [
-      "a0b9b2df9f7dc4654f25e510498da706cff9cda8",
+      "1dd417465bb883a1f4802978a85c7a0732b90616",
       []
      ],
      "requirements_android_webview.txt": [
@@ -427708,6 +427742,15 @@
        {}
       ]
      ],
+     "mouseEvent-offsetXY-svg.html": [
+      "c0bd16448529b63424813b93022cfb215396cadd",
+      [
+       null,
+       {
+        "testdriver": true
+       }
+      ]
+     ],
      "mouseEvent.html": [
       "d50959729239599ff057a71143553b4a53f88975",
       [
@@ -428989,14 +429032,14 @@
       ]
      ],
      "focus-in-focus-event-001.html": [
-      "bd4145a3fe5390c55a4e7e9eb29bbcfa922bdf1e",
+      "0639b7785eb3c3eacb4e4478557caf80a3f7511e",
       [
        null,
        {}
       ]
      ],
      "focus-visible-001.html": [
-      "068368995794c0559d3551ca3dc3471f7d777240",
+      "d580b0771f85e7536abb2bce4e539b77e4ddeed6",
       [
        null,
        {
@@ -429005,7 +429048,7 @@
       ]
      ],
      "focus-visible-002.html": [
-      "2846ae465a5665ca1d33db3f4c0ec14bf620a47e",
+      "441c1dae9883d73f01093f56870a965f3d1a8aa4",
       [
        null,
        {
@@ -429015,7 +429058,7 @@
       ]
      ],
      "focus-visible-003.html": [
-      "9d57225708a89bfae2c1549144d2284f7f138ba6",
+      "aa73b4da44f0e831dbbd5516bd71daef245e7e65",
       [
        null,
        {
@@ -429024,7 +429067,7 @@
       ]
      ],
      "focus-visible-004.html": [
-      "318d1eeb05430bd06fb166b8ffc13fa0b67c0c5c",
+      "b30b9e2938ab4ed4e3972340953649c21e0085d9",
       [
        null,
        {
@@ -429033,7 +429076,7 @@
       ]
      ],
      "focus-visible-005.html": [
-      "4aec863e3b9af3d5ba568de34a320bf92dda2adf",
+      "c86c0574153243edd5f3c5a4f9ee24cb73e61374",
       [
        null,
        {
@@ -429042,7 +429085,7 @@
       ]
      ],
      "focus-visible-006.html": [
-      "89d9782ac8eb439154d5f65f95f622d2c25acf3f",
+      "a5256c107a7fd967cde60d2f67b2154a5c8145cf",
       [
        null,
        {
@@ -429060,7 +429103,7 @@
       ]
      ],
      "focus-visible-008.html": [
-      "c84985fe1015ee756459ad23967810988b38fedb",
+      "5f5b54e1f0f1f5deaf2bceac7b0cd41d50672f61",
       [
        null,
        {
@@ -429069,21 +429112,21 @@
       ]
      ],
      "focus-visible-009.html": [
-      "bbadd578e004e5b84203979c3a6c07a820bd7564",
+      "d9edb69c574aa1c7912ab66397d4bf1ab1590a37",
       [
        null,
        {}
       ]
      ],
      "focus-visible-010.html": [
-      "cfd4282e9b599b0caa62cbbfa15ea34d88217a29",
+      "8d02edbc3e6bd5ec257c652a4bf1fe07149ba699",
       [
        null,
        {}
       ]
      ],
      "focus-visible-011.html": [
-      "3d66dc91386ecc1fb7c7cc166150550c5a65275d",
+      "d45f5d8ed0f3903da5b5c37ea5a13ccbe690ceca",
       [
        null,
        {
@@ -429092,7 +429135,7 @@
       ]
      ],
      "focus-visible-012.html": [
-      "dcb00e18d2535a6ab826f089d1034185de6be446",
+      "b27abbe39c01b202196f5e25159da26cb5089f8e",
       [
        null,
        {
@@ -429101,14 +429144,14 @@
       ]
      ],
      "focus-visible-014.html": [
-      "8e52570e79b163cd91f9aca1e0d4ee545fa5c51d",
+      "6a4aef6e2bdf3c277b52ddb50679bc240b4cf744",
       [
        null,
        {}
       ]
      ],
      "focus-visible-015.html": [
-      "21568f3b0639a8df388eabffbea045ecf570cb8a",
+      "685baeb7bad07ad45a8efda163dba5db94b9ffe8",
       [
        null,
        {
@@ -429117,7 +429160,7 @@
       ]
      ],
      "focus-visible-016.html": [
-      "64d9bb777fb547f42639f14f51b92248ff606109",
+      "a65e5a5b3dd6aa2be7aa733d01725242e8b01cc4",
       [
        null,
        {
@@ -460874,6 +460917,20 @@
         {}
        ]
       ],
+      "sandbox-inherited-from-initiator-frame.html": [
+       "ab87fce5e0ce82bfed5ac88bcbf9890e8c39a4ce",
+       [
+        null,
+        {}
+       ]
+      ],
+      "sandbox-inherited-from-initiator-response.html": [
+       "638f1ba783985c309759cdc63ec332d1b5ad5a58",
+       [
+        null,
+        {}
+       ]
+      ],
       "sandbox-initial-empty-document-toward-same-origin.html": [
        "d1306c970322682f3979c497a5decd78218ba845",
        [
@@ -483145,6 +483202,15 @@
         ]
        ]
       },
+      "embedded-content": {
+       "audio-controls-intrinsic-size.html": [
+        "6cbbcd02f5a0215801d960a319924bd86c90c70a",
+        [
+         null,
+         {}
+        ]
+       ]
+      },
       "svg-embedded-sizing": {
        "svg-in-iframe-auto.html": [
         "4c3fefe88f35898154f86bd66ff6ebcc3cb32be0",
@@ -528066,7 +528132,7 @@
     ],
     "textcontrols": {
      "selectionchange.tentative.html": [
-      "2216a4b514f9932118c2f8b645b4e4a1656117f2",
+      "adec8b31f3e096eb28ae0246164d637da10bd5ee",
       [
        null,
        {}
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/one-element-transition.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/one-element-transition.html.ini
new file mode 100644
index 00000000000..5f00e603eb0
--- /dev/null
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/one-element-transition.html.ini
@@ -0,0 +1,2 @@
+[one-element-transition.html]
+  expected: TIMEOUT
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
new file mode 100644
index 00000000000..e181af5397f
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
@@ -0,0 +1,4 @@
+[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/fetch/content-type/response.window.js.ini b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
index 9ed95d45448..32fce125d51 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -315,15 +315,18 @@
   [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<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>: separate response Content-Type: text/html */*]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
+  [<iframe>: combined response Content-Type: text/html */*]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html;x=" text/plain]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/content-type/script.window.js.ini b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
index e67f0406fc3..d2df9b78483 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -53,3 +53,6 @@
   [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 58de838d890..1c62485a210 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,6 +11,9 @@
   [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%20%22nosniFF%22]
+  [X-Content-Type-Options%3A%20%2Cnosniff]
+    expected: FAIL
+
+  [Content-Type-Options%3A%20nosniff]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
deleted file mode 100644
index 87b07c3e670..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_1.html]
-  [Multiple history traversals from the same task]
-    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/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
similarity index 71%
rename from tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
rename to tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
index 385376c7321..51f8272a6de 100644
--- a/tests/wpt/metadata-layout-2020/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_3.html.ini
@@ -1,4 +1,4 @@
-[traverse_the_history_4.html]
+[traverse_the_history_3.html]
   [Multiple history traversals, last would be aborted]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
deleted file mode 100644
index dc2e45516de..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_5.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/sandboxing/sandbox-inherited-from-initiator-frame.html.ini b/tests/wpt/metadata/html/browsers/sandboxing/sandbox-inherited-from-initiator-frame.html.ini
new file mode 100644
index 00000000000..0ecd27dfc0f
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/sandboxing/sandbox-inherited-from-initiator-frame.html.ini
@@ -0,0 +1,5 @@
+[sandbox-inherited-from-initiator-frame.html]
+  expected: TIMEOUT
+  [Inherit sandbox flags from the initiator's frame]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini b/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
index fd369192a02..442db3cb549 100644
--- a/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
+++ b/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
@@ -1,5 +1,4 @@
 [embedded-opener-remove-frame.html]
-  expected: TIMEOUT
   [opener and "removed" embedded documents]
     expected: FAIL
 
@@ -7,5 +6,5 @@
     expected: FAIL
 
   [opener of discarded auxiliary browsing context]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/image-maps/image-map-processing-model/hash-name-reference.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/image-maps/image-map-processing-model/hash-name-reference.html.ini
index 1de3f8d68b2..98163335e40 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/image-maps/image-map-processing-model/hash-name-reference.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/image-maps/image-map-processing-model/hash-name-reference.html.ini
@@ -172,3 +172,6 @@
   [XHTML img usemap="http://example.org/#garbage-before-hash-id"]
     expected: FAIL
 
+  [HTML (standards) IMG usemap="no-hash-name"]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
index f6a7aca3306..5f60c78e73c 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,5 +1,6 @@
 [iframe_sandbox_popups_escaping-3.html]
   type: testharness
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
-    expected: FAIL
+    expected: TIMEOUT
 
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/forms/form-submission-0/form-double-submit-2.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini
new file mode 100644
index 00000000000..633a99517d3
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-2.html.ini
@@ -0,0 +1,4 @@
+[form-double-submit-2.html]
+  [preventDefault should allow onclick submit() to succeed]
+    expected: FAIL
+
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
new file mode 100644
index 00000000000..9f416703229
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
@@ -0,0 +1,4 @@
+[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
index f7f45771622..fd42ca23672 100644
--- a/tests/wpt/metadata/html/semantics/forms/textfieldselection/select-event.html.ini
+++ b/tests/wpt/metadata/html/semantics/forms/textfieldselection/select-event.html.ini
@@ -1,64 +1,70 @@
 [select-event.html]
-  [input type url: setRangeText() a second time (must not fire select)]
-    expected: FAIL
-
   [input type url: setSelectionRange() a second time (must not fire select)]
     expected: FAIL
 
-  [input type tel: selectionDirection a second time (must not fire select)]
-    expected: FAIL
-
   [input type tel: select() a second time (must not fire select)]
     expected: FAIL
 
   [input type password: selectionDirection a second time (must not fire select)]
     expected: FAIL
 
-  [input type url: selectionEnd a second time (must not fire select)]
-    expected: FAIL
-
   [input type url: select() a second time (must not fire select)]
     expected: FAIL
 
   [input type text: setRangeText() a second time (must not fire select)]
     expected: FAIL
 
-  [input type search: setRangeText() a second time (must not fire select)]
-    expected: FAIL
-
   [input type password: select() a second time (must not fire select)]
     expected: FAIL
 
-  [input type password: selectionStart a second time (must not fire select)]
-    expected: FAIL
-
-  [input type text: selectionEnd 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 password: selectionEnd out of range a second time (must not fire select)]
     expected: FAIL
 
-  [input type tel: selectionStart out of range a second time (must not fire select)]
-    expected: FAIL
-
-  [input type search: selectionStart out of range 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 text: selectionDirection a second time (must not fire select)]
-    expected: FAIL
-
   [input type search: selectionDirection a second time (must not fire select)]
     expected: FAIL
 
-  [textarea: setSelectionRange out of range a second time (must not fire select)]
+  [input type url: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: setSelectionRange() 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
+
+  [textarea: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: setSelectionRange() a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: selectionDirection a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: selectionEnd a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: selectionStart out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type text: selectionStart 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: selectionStart a second time (must not fire select)]
+    expected: FAIL
+
+  [input type search: selectionStart a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: setSelectionRange out of range 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/iframe_005.html.ini b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini
deleted file mode 100644
index 6cf9d13975c..00000000000
--- a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[iframe_005.html]
-  [document.write external script into iframe write back into parent]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini b/tests/wpt/metadata/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
index 0cef5158fae..01f7b72cbe7 100644
--- a/tests/wpt/metadata/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
+++ b/tests/wpt/metadata/html/webappapis/scripting/events/compile-event-handler-settings-objects.html.ini
@@ -4,3 +4,6 @@
   [The incumbent settings object while executing the compiled callback via Web IDL's invoke must be that of the node document]
     expected: TIMEOUT
 
+  [The entry settings object while executing the compiled callback via Web IDL's invoke must be that of the node document]
+    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 5b121db811f..c3199854574 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
@@ -716,3 +716,9 @@
   [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-4.0587832018260933e-37\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
 
+  [X SNR (-432.8357638048991 dB) is not greater than or equal to 65.737. Got -432.8357638048991.]
+    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-6.5086735184939384e+23\t9.3139332532882690e-1\t6.5086735184939384e+23\t6.9881041032756614e+23\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 6.5086735184939384e+23 at index of 28696.\n\tMax RelError of 6.9881041032756614e+23 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/without-ports/018.html.ini b/tests/wpt/metadata/webmessaging/with-ports/018.html.ini
similarity index 100%
rename from tests/wpt/metadata/webmessaging/without-ports/018.html.ini
rename to tests/wpt/metadata/webmessaging/with-ports/018.html.ini
diff --git a/tests/wpt/metadata/workers/baseurl/alpha/import-in-moduleworker.html.ini b/tests/wpt/metadata/workers/baseurl/alpha/import-in-moduleworker.html.ini
index bfd4d6dd2d6..bf2a1d61bab 100644
--- a/tests/wpt/metadata/workers/baseurl/alpha/import-in-moduleworker.html.ini
+++ b/tests/wpt/metadata/workers/baseurl/alpha/import-in-moduleworker.html.ini
@@ -1,5 +1,4 @@
 [import-in-moduleworker.html]
-  expected: ERROR
   [Base URL in module dedicated workers: import]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini b/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
new file mode 100644
index 00000000000..80f9a4f15b8
--- /dev/null
+++ b/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
@@ -0,0 +1,2 @@
+[Worker-constructor.html]
+  expected: ERROR
diff --git a/tests/wpt/web-platform-tests/css/css-backgrounds/animations/one-element-transition.html b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/one-element-transition.html
new file mode 100644
index 00000000000..51d3a968c73
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/one-element-transition.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#background-color">
+<link rel="match" href="one-element-animation-ref.html">
+<style>
+.container {
+  width: 100px;
+  height: 100px;
+  background-color: rgb(0, 200, 0);
+  transition-property: background-color;
+  /* Use a long animation that start at 50% progress where the slope of the
+     selected timing function is zero. By setting up the animation in this way,
+     we accommodate lengthy delays in running the test without a potential drift
+     in the animated property value. This is important for avoiding flakes,
+     especially on debug builds. The screenshots are taken as soon as the
+     animation is ready, thus the long animation duration has no bearing on
+     the actual duration of the test. */
+  transition-duration: 1000000s;
+  transition-timing-function: cubic-bezier(0,1,1,0);
+  transition-delay: -500000s;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<body>
+<div class="container" id="target"></div>
+
+<script>
+function update() {
+  document.getElementById('target').style.backgroundColor = "rgb(200, 0, 0)";
+  requestAnimationFrame(() => {
+    takeScreenshot();
+  });
+}
+requestAnimationFrame(function() {
+  requestAnimationFrame(update);
+});
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-break/out-of-flow-in-multicolumn-013.html b/tests/wpt/web-platform-tests/css/css-break/out-of-flow-in-multicolumn-013.html
new file mode 100644
index 00000000000..3bf06dfc1a7
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-break/out-of-flow-in-multicolumn-013.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<link rel="help" href="href=https://www.w3.org/TR/css-position-3/#abspos-breaking">
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<!-- Nested abspos with `height: auto` and positioned with the bottom property.
+     The innermost abspos only is fragmented. -->
+<style>
+  #multicol {
+    column-count: 2;
+    width: 100px;
+    height: 100px;
+    column-fill: auto;
+    column-gap: 0px;
+    background-color: red;
+  }
+  .rel {
+    position: relative;
+    height: 100px;
+    width: 50px;
+  }
+  .abs {
+    position: absolute;
+    width: 50px;
+    background-color: green;
+  }
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div id="multicol">
+  <div class="rel">
+    <div class="abs" style="bottom: 0;">
+      <div class="abs" style="bottom: -100px;">
+        <div style="height: 200px;"></div>
+      </div>
+    </div>
+  </div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/css/cssom-view/mouseEvent-offsetXY-svg.html b/tests/wpt/web-platform-tests/css/cssom-view/mouseEvent-offsetXY-svg.html
new file mode 100644
index 00000000000..c0bd1644852
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/cssom-view/mouseEvent-offsetXY-svg.html
@@ -0,0 +1,27 @@
+<!doctype html>
+<title>MouseEvent.offsetX/Y returns coordinates relative to the root svg</title>
+<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
+<link rel="author" title="Mozilla" href="https://mozilla.org">
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1684973">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/1508">
+<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-mouseevent-offsetx">
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<style>
+  body { margin: 0 }
+</style>
+<svg width=100 height=100>
+  <rect width=30 height=30 x=50 y=50 fill=green></rect>
+</svg>
+<script>
+let t = async_test();
+let rect = document.querySelector("rect");
+rect.addEventListener("click", t.step_func_done(function(e) {
+  assert_true(e.offsetX >= 50);
+  assert_true(e.offsetY >= 50);
+}))
+
+test_driver.click(rect);
+</script>
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-in-focus-event-001.html b/tests/wpt/web-platform-tests/css/selectors/focus-in-focus-event-001.html
index bd4145a3fe5..0639b7785eb 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-in-focus-event-001.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-in-focus-event-001.html
@@ -14,7 +14,7 @@ input.addEventListener('focus', function(e) {
   var focused = document.querySelector(':focus');
   test(() => {
     assert_equals(e.target, focused, "':focus' matches event.target");
-  }, "Checks that ':focus' pseudo-class matches inside 'focus' evente handler");
+  }, "Checks that ':focus' pseudo-class matches inside 'focus' event handler");
 }, false);
 input.focus();
 </script>
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-001.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-001.html
index 06836899579..d580b0771f8 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-001.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-001.html
@@ -13,6 +13,7 @@
   <style>
     @supports not (selector(:focus-visible)) {
       :focus {
+        outline: red solid 5px;
         background-color: red;
       }
     }
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-002.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-002.html
index 2846ae465a5..441c1dae988 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-002.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-002.html
@@ -14,6 +14,7 @@
   <style>
     @supports not (selector(:focus-visible)) {
       :focus {
+        outline: red solid 5px;
         background-color: red;
       }
     }
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-003.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-003.html
index 9d57225708a..aa73b4da44f 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-003.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-003.html
@@ -14,6 +14,7 @@
     @supports not (selector(:focus-visible)) {
       :focus {
         outline: red solid 5px;
+        background-color: red;
       }
     }
 
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-004.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-004.html
index 318d1eeb054..b30b9e2938a 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-004.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-004.html
@@ -14,6 +14,7 @@
     @supports not (selector(:focus-visible)) {
       :focus {
         outline: red solid 5px;
+        background-color: red;
       }
     }
 
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-005.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-005.html
index 4aec863e3b9..c86c0574153 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-005.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-005.html
@@ -13,6 +13,7 @@
     @supports not (selector(:focus-visible)) {
       :focus {
         outline: red solid 5px;
+        background-color: red;
       }
     }
 
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-006.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-006.html
index 89d9782ac8e..a5256c107a7 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-006.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-006.html
@@ -10,6 +10,13 @@
   <script src="/resources/testdriver.js"></script>
   <script src="/resources/testdriver-vendor.js"></script>
   <style>
+    @supports not (selector(:focus-visible)) {
+      :focus {
+        outline: red solid 5px;
+        background-color: red;
+      }
+    }
+
     span[contenteditable] {
         border: 1px solid black;
         background-color: white;
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-008.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-008.html
index c84985fe101..5f5b54e1f0f 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-008.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-008.html
@@ -12,6 +12,7 @@
   <style>
     @supports not (selector(:focus-visible)) {
       #el:focus {
+        outline: red solid 5px;
         background-color: red;
       }
     }
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-009.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-009.html
index bbadd578e00..d9edb69c574 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-009.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-009.html
@@ -9,7 +9,8 @@
   <script src="/resources/testharnessreport.js"></script>
   <style>
     @supports not (selector(:focus-visible)) {
-      #buton:focus {
+      #button:focus {
+        outline: red solid 5px;
         background-color: red;
       }
     }
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-010.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-010.html
index cfd4282e9b5..8d02edbc3e6 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-010.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-010.html
@@ -10,6 +10,7 @@
   <style>
     @supports not (selector(:focus-visible)) {
       :focus {
+        outline: red solid 5px;
         background-color: red;
       }
     }
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-011.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-011.html
index 3d66dc91386..d45f5d8ed0f 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-011.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-011.html
@@ -12,6 +12,7 @@
   <style>
     @supports not (selector(:focus-visible)) {
       #next:focus {
+        outline: red solid 5px;
         background-color: red;
       }
     }
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-012.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-012.html
index dcb00e18d25..b27abbe39c0 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-012.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-012.html
@@ -13,6 +13,7 @@
   <style>
     @supports not (selector(:focus-visible)) {
       :focus {
+        outline: red solid 5px;
         background-color: red;
       }
     }
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-014.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-014.html
index 8e52570e79b..6a4aef6e2bd 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-014.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-014.html
@@ -9,6 +9,7 @@
 <style>
   @supports not (selector(:focus-visible)) {
     :focus {
+      outline: red solid 5px;
       background-color: red;
     }
   }
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-015.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-015.html
index 21568f3b063..685baeb7bad 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-015.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-015.html
@@ -11,6 +11,7 @@
 <style>
   @supports not (selector(:focus-visible)) {
     :focus {
+      outline: red solid 5px;
       background-color: red;
     }
   }
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-016.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-016.html
index 64d9bb777fb..a65e5a5b3dd 100644
--- a/tests/wpt/web-platform-tests/css/selectors/focus-visible-016.html
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-016.html
@@ -11,6 +11,7 @@
 <style>
   @supports not (selector(:focus-visible)) {
     :focus {
+      outline: red solid 5px;
       background-color: red;
     }
   }
diff --git a/tests/wpt/web-platform-tests/docs/admin/index.md b/tests/wpt/web-platform-tests/docs/admin/index.md
index 3073b9678fe..59569fd464c 100644
--- a/tests/wpt/web-platform-tests/docs/admin/index.md
+++ b/tests/wpt/web-platform-tests/docs/admin/index.md
@@ -44,15 +44,13 @@ explicitly-managed secret.
 - (unknown registrar): http://testthewebforward.org
   - web-human@w3.org
 - [Google Domains](https://domains.google/): https://wpt.fyi
+  - smcgruer@google.com
   - foolip@google.com
-  - robertma@google.com
-  - mike@bocoup.com
 - (Google internal): https://wpt.live https://wptpr.live
+  - smcgruer@google.com
   - foolip@google.com
-  - robertma@google.com
 - [GitHub](https://github.com/): web-platform-tests
   - [@foolip](https://github.com/foolip)
-  - [@Hexcles](https://github.com/Hexcles)
   - [@jgraham](https://github.com/jgraham)
   - [@plehegar](https://github.com/plehegar)
   - [@thejohnjansen](https://github.com/thejohnjansen)
@@ -62,15 +60,12 @@ explicitly-managed secret.
   - [@plehegar](https://github.com/plehegar)
   - [@sideshowbarker](https://github.com/sideshowbarker)
 - [Google Cloud Platform](https://cloud.google.com/): wptdashboard{-staging}
-  - robertma@google.com
   - smcgruer@google.com
   - foolip@google.com
 - [Google Cloud Platform](https://cloud.google.com/): wpt-live
   - smcgruer@google.com
-  - robertma@google.com
 - [Google Cloud Platform](https://cloud.google.com/): wpt-pr-bot
   - smcgruer@google.com
-  - robertma@google.com
 - E-mail address: wpt.pr.bot@gmail.com
   - smcgruer@google.com
   - boaz@bocoup.com
diff --git a/tests/wpt/web-platform-tests/html/browsers/sandboxing/resources/sandbox-inherited-from-initiator-response-helper.html b/tests/wpt/web-platform-tests/html/browsers/sandboxing/resources/sandbox-inherited-from-initiator-response-helper.html
new file mode 100644
index 00000000000..29c7f12441f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/browsers/sandboxing/resources/sandbox-inherited-from-initiator-response-helper.html
@@ -0,0 +1,15 @@
+<script>
+  const iframe_1_script = encodeURI(`
+    <script>
+      try {
+        document.domain = document.domain;
+        parent.postMessage("not sandboxed", "*");
+      } catch (exception) {
+        parent.postMessage("sandboxed", "*");
+      }
+    </scr`+`ipt>
+  `);
+
+  const iframe_1 = parent.document.querySelector("#iframe_1");
+  iframe_1.src = `data:text/html,${iframe_1_script}`;
+</script>
diff --git a/tests/wpt/web-platform-tests/html/browsers/sandboxing/resources/sandbox-inherited-from-initiator-response-helper.html.headers b/tests/wpt/web-platform-tests/html/browsers/sandboxing/resources/sandbox-inherited-from-initiator-response-helper.html.headers
new file mode 100644
index 00000000000..82e8023d0ba
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/browsers/sandboxing/resources/sandbox-inherited-from-initiator-response-helper.html.headers
@@ -0,0 +1 @@
+Content-Security-Policy: sandbox allow-scripts allow-same-origin
diff --git a/tests/wpt/web-platform-tests/html/browsers/sandboxing/sandbox-inherited-from-initiator-frame.html b/tests/wpt/web-platform-tests/html/browsers/sandboxing/sandbox-inherited-from-initiator-frame.html
new file mode 100644
index 00000000000..ab87fce5e0c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/browsers/sandboxing/sandbox-inherited-from-initiator-frame.html
@@ -0,0 +1,64 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<title>Inherit sandbox flags from the initiator's frame</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<body>
+<script>
+// Check sandbox flags are properly inherited when a document initiate a
+// navigation inside another frame that it doesn't own directly.
+
+// This check the sandbox flags defined by the frame. See also the other test
+// about sandbox flags defined by the response (e.g. CSP sandbox):
+// => sandbox-inherited-from-initiators-response.html
+
+// Return a promise, resolving when |element| triggers |event_name| event.
+let future = (element, event_name) => {
+  return new Promise(resolve => {
+    element.addEventListener(event_name, event => resolve(event))
+  });
+};
+
+promise_test(async test => {
+  const iframe_1 = document.createElement("iframe");
+  const iframe_2 = document.createElement("iframe");
+
+  iframe_1.id = "iframe_1";
+  iframe_2.id = "iframe_2";
+
+  const iframe_1_script = encodeURI(`
+    <script>
+      try {
+        document.domain = document.domain;
+        parent.postMessage("not sandboxed", "*");
+      } catch (exception) {
+        parent.postMessage("sandboxed", "*");
+      }
+    </scr`+`ipt>
+  `);
+
+  const iframe_2_script = `
+    <script>
+      const iframe_1 = parent.document.querySelector("#iframe_1");
+      iframe_1.src = "data:text/html,${iframe_1_script}";
+    </scr`+`ipt>
+  `;
+
+  iframe_2.sandbox = "allow-scripts allow-same-origin";
+  iframe_2.srcdoc = iframe_2_script;
+
+  // Insert |iframe_1|. It will load the initial empty document, with no sandbox
+  // flags.
+  const iframe_1_load_1 = future(iframe_1, "load");
+  document.body.appendChild(iframe_1);
+  await iframe_1_load_1;
+
+  // Insert |iframe_2|. It will load with sandbox flags. It will make |iframe_1|
+  // to navigate toward a data-url, which should inherit the sandbox flags.
+  const iframe_1_reply = future(window, "message");
+  document.body.appendChild(iframe_2);
+  const result = await iframe_1_reply;
+
+  assert_equals("sandboxed", result.data);
+})
+</script>
diff --git a/tests/wpt/web-platform-tests/html/browsers/sandboxing/sandbox-inherited-from-initiator-response.html b/tests/wpt/web-platform-tests/html/browsers/sandboxing/sandbox-inherited-from-initiator-response.html
new file mode 100644
index 00000000000..638f1ba7839
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/browsers/sandboxing/sandbox-inherited-from-initiator-response.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<title>Inherit sandbox flags from the initiator's response</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<body>
+<script>
+// Check sandbox flags are properly inherited when a document initiate a
+// navigation inside another frame that it doesn't own directly.
+
+// This check the sandbox flags defined by the response (e.g. CSP sandbox). See
+// also the other test about sandbox flags inherited from the frame.
+// => sandbox-inherited-from-initiators-frame.html
+
+// Return a promise, resolving when |element| triggers |event_name| event.
+let future = (element, event_name) => {
+  return new Promise(resolve => {
+    element.addEventListener(event_name, event => resolve(event))
+  });
+};
+
+promise_test(async test => {
+  const iframe_1 = document.createElement("iframe");
+  const iframe_2 = document.createElement("iframe");
+
+  iframe_1.id = "iframe_1";
+  iframe_2.id = "iframe_2";
+
+  iframe_2.src =
+    "./resources/sandbox-inherited-from-initiator-response-helper.html";
+
+  // Insert |iframe_1|. It will load the initial empty document, with no sandbox
+  // flags.
+  const iframe_1_load_1 = future(iframe_1, "load");
+  document.body.appendChild(iframe_1);
+  await iframe_1_load_1;
+
+  // Insert |iframe_2|. It will load with sandbox flags. It will make |iframe_1|
+  // to navigate toward a data-url, which should inherit the sandbox flags.
+  const iframe_1_reply = future(window, "message");
+  document.body.appendChild(iframe_2);
+  const result = await iframe_1_reply;
+
+  assert_equals("sandboxed", result.data);
+})
+</script>
diff --git a/tests/wpt/web-platform-tests/html/rendering/replaced-elements/embedded-content/audio-controls-intrinsic-size.html b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/embedded-content/audio-controls-intrinsic-size.html
new file mode 100644
index 00000000000..6cbbcd02f5a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/embedded-content/audio-controls-intrinsic-size.html
@@ -0,0 +1,25 @@
+<!doctype html>
+<title>Audio intrinsic size doesn't depend on its max size</title>
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1683979">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div style="display: inline-block">
+  <audio controls style="max-width: 99%" id="test"></audio>
+</div>
+<script>
+let audio = document.getElementById("test");
+
+function computeSize() {
+  return audio.getBoundingClientRect().width;
+}
+
+let size = computeSize();
+async_test(function(t) {
+  requestAnimationFrame(t.step_func(function() {
+    assert_equals(computeSize(), size, "Shouldn't have changed size");
+    requestAnimationFrame(t.step_func_done(function() {
+      assert_equals(computeSize(), size, "Shouldn't have changed size");
+    }));
+  }));
+});
+</script>
diff --git a/tests/wpt/web-platform-tests/import-maps/data-driven/tools/format_json.py b/tests/wpt/web-platform-tests/import-maps/data-driven/tools/format_json.py
index 1059ac793aa..6386d418de1 100644
--- a/tests/wpt/web-platform-tests/import-maps/data-driven/tools/format_json.py
+++ b/tests/wpt/web-platform-tests/import-maps/data-driven/tools/format_json.py
@@ -12,7 +12,7 @@ $ python tools/format_json.py resources/*.json
 
 def main():
     for filename in sys.argv[1:]:
-        print filename
+        print(filename)
         try:
             spec = json.load(
                 open(filename, u'r'), object_pairs_hook=collections.OrderedDict)
diff --git a/tests/wpt/web-platform-tests/selection/textcontrols/selectionchange.tentative.html b/tests/wpt/web-platform-tests/selection/textcontrols/selectionchange.tentative.html
index 2216a4b514f..adec8b31f3e 100644
--- a/tests/wpt/web-platform-tests/selection/textcontrols/selectionchange.tentative.html
+++ b/tests/wpt/web-platform-tests/selection/textcontrols/selectionchange.tentative.html
@@ -100,6 +100,15 @@
       assert_equals(collector.events.length, 1);
     }, `Calling select() on ${name}`);
 
+    promise_test(async () => {
+      await data.initialize();
+
+      target.setRangeText("newmiddle", 2, 3, "select");
+
+      await data.assert_empty_spin();
+      assert_equals(collector.events.length, 1);
+    }, `Calling setRangeText() on ${name}`);
+
     promise_test(async () => {
       await data.initialize();
 
diff --git a/tests/wpt/web-platform-tests/tools/META.yml b/tests/wpt/web-platform-tests/tools/META.yml
index 3eb893f4e65..bb8ed039dc3 100644
--- a/tests/wpt/web-platform-tests/tools/META.yml
+++ b/tests/wpt/web-platform-tests/tools/META.yml
@@ -1,5 +1,4 @@
 suggested_reviewers:
   - jgraham
-  - Hexcles
   - stephenmcgruer
   - LukeZielinski
diff --git a/tests/wpt/web-platform-tests/tools/requirements_mypy.txt b/tests/wpt/web-platform-tests/tools/requirements_mypy.txt
index 65100d70376..d5e04b94d53 100644
--- a/tests/wpt/web-platform-tests/tools/requirements_mypy.txt
+++ b/tests/wpt/web-platform-tests/tools/requirements_mypy.txt
@@ -1,3 +1,3 @@
 mypy==0.790
 mypy-extensions==0.4.3
-typed-ast==1.4.1
+typed-ast==1.4.2
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/requirements.txt b/tests/wpt/web-platform-tests/tools/wptrunner/requirements.txt
index a0b9b2df9f7..1dd417465bb 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/requirements.txt
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/requirements.txt
@@ -4,7 +4,7 @@ mozlog==7.1.0
 mozdebug==0.2
 # Pillow 7 requires Python 3
 pillow==6.2.2; python_version <= '2.7'  # pyup: <7.0
-pillow==8.0.1; python_version >= '3.0'
+pillow==8.1.0; python_version >= '3.0'
 urllib3[secure]==1.26.2
 requests==2.25.1
 six==1.15.0