diff --git a/tests/wpt/metadata-layout-2020/FileAPI/url/url-in-tags-revoke.window.js.ini b/tests/wpt/metadata-layout-2020/FileAPI/url/url-in-tags-revoke.window.js.ini
index 76b44d9e9cf..3605e8f3fc9 100644
--- a/tests/wpt/metadata-layout-2020/FileAPI/url/url-in-tags-revoke.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/FileAPI/url/url-in-tags-revoke.window.js.ini
@@ -4,7 +4,7 @@
     expected: TIMEOUT
 
   [Opening a blob URL in a new window immediately before revoking it works.]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Fetching a blob URL immediately before revoking it works in an iframe.]
     expected: FAIL
diff --git a/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-002.html.ini b/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-002.html.ini
deleted file mode 100644
index f64b45fea6b..00000000000
--- a/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-002.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-002.html]
-  [Hit test float]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-005.html.ini b/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-005.html.ini
deleted file mode 100644
index baa9f1a7541..00000000000
--- a/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-005.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-005.html]
-  [Miss clipped float]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-025.html.ini b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-025.html.ini
new file mode 100644
index 00000000000..375f95fb091
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-025.html.ini
@@ -0,0 +1,13 @@
+[flex-minimum-height-flex-items-025.html]
+  [.outer-column-flexbox > div 3]
+    expected: FAIL
+
+  [.outer-column-flexbox > div 2]
+    expected: FAIL
+
+  [.outer-column-flexbox > div 1]
+    expected: FAIL
+
+  [.outer-column-flexbox > div 4]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-026.html.ini b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-026.html.ini
new file mode 100644
index 00000000000..cadef46110d
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-026.html.ini
@@ -0,0 +1,2 @@
+[flex-minimum-height-flex-items-026.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-027.html.ini b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-027.html.ini
new file mode 100644
index 00000000000..f2574e7d813
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-027.html.ini
@@ -0,0 +1,2 @@
+[flex-minimum-height-flex-items-027.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-028.html.ini b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-028.html.ini
new file mode 100644
index 00000000000..89dfb9f5ece
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-028.html.ini
@@ -0,0 +1,2 @@
+[flex-minimum-height-flex-items-028.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-030.html.ini b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-030.html.ini
new file mode 100644
index 00000000000..52441ddb68b
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-height-flex-items-030.html.ini
@@ -0,0 +1,2 @@
+[flex-minimum-height-flex-items-030.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-width-flex-items-015.html.ini b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-width-flex-items-015.html.ini
new file mode 100644
index 00000000000..d011fb8fc5d
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-flexbox/flex-minimum-width-flex-items-015.html.ini
@@ -0,0 +1,2 @@
+[flex-minimum-width-flex-items-015.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata-layout-2020/css/css-flexbox/justify-content-006.html.ini b/tests/wpt/metadata-layout-2020/css/css-flexbox/justify-content-006.html.ini
new file mode 100644
index 00000000000..eb5dadc9bc9
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-flexbox/justify-content-006.html.ini
@@ -0,0 +1,4 @@
+[justify-content-006.html]
+  [.middle > div 1]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/css-transforms/transform-scale-hittest.html.ini b/tests/wpt/metadata-layout-2020/css/css-transforms/transform-scale-hittest.html.ini
index 4a1e8110f6f..f8e7e539aae 100644
--- a/tests/wpt/metadata-layout-2020/css/css-transforms/transform-scale-hittest.html.ini
+++ b/tests/wpt/metadata-layout-2020/css/css-transforms/transform-scale-hittest.html.ini
@@ -2,3 +2,6 @@
   [Hit test intersecting scaled box]
     expected: FAIL
 
+  [Hit test within unscaled box]
+    expected: FAIL
+
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
deleted file mode 100644
index 4c79907309b..00000000000
--- a/tests/wpt/metadata-layout-2020/css/cssom-view/CaretPosition-001.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[CaretPosition-001.html]
-  [Element at (400, 100)]
-    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
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 c485e666fe5..a5246461def 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
@@ -312,27 +312,24 @@
   [<iframe>: separate response Content-Type: text/html */*]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" text/plain]
-    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>: combined response Content-Type: text/html */*]
-    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>: combined response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
+  [<iframe>: separate response Content-Type: text/plain */*]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;x=" text/plain]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;" \\" 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 b4bec16ae8a..258fe374697 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
@@ -56,9 +56,6 @@
   [separate text/javascript x/x]
     expected: FAIL
 
-  [separate text/javascript;charset=windows-1252 error text/javascript]
-    expected: FAIL
-
-  [separate text/javascript; charset=windows-1252 text/javascript]
+  [separate text/javascript ]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/fetch/cross-origin-resource-policy/image-loads.html.ini b/tests/wpt/metadata-layout-2020/fetch/cross-origin-resource-policy/image-loads.html.ini
deleted file mode 100644
index 7d26a22aeb9..00000000000
--- a/tests/wpt/metadata-layout-2020/fetch/cross-origin-resource-policy/image-loads.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[image-loads.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/browsing-the-web/navigating-across-documents/javascript-url-return-value-handling-dynamic.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/browsing-the-web/navigating-across-documents/javascript-url-return-value-handling-dynamic.html.ini
index 4c5287a46be..da6ede4494d 100644
--- a/tests/wpt/metadata-layout-2020/html/browsers/browsing-the-web/navigating-across-documents/javascript-url-return-value-handling-dynamic.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/browsers/browsing-the-web/navigating-across-documents/javascript-url-return-value-handling-dynamic.html.ini
@@ -5,3 +5,15 @@
   [Test javascript URL string return values in direct and indirect (target) frame contexts. 9]
     expected: FAIL
 
+  [Test javascript URL string return values in direct and indirect (target) frame contexts. 7]
+    expected: FAIL
+
+  [Test javascript URL string return values in direct and indirect (target) frame contexts. 6]
+    expected: FAIL
+
+  [Test javascript URL string return values in direct and indirect (target) frame contexts. 5]
+    expected: FAIL
+
+  [Test javascript URL string return values in direct and indirect (target) frame contexts. 8]
+    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-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
index 42ebcc9d57e..88f4ddd0e9a 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
@@ -1,5 +1,5 @@
 [iframe_sandbox_popups_escaping-1.html]
-  expected: TIMEOUT
+  expected: CRASH
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
     expected: TIMEOUT
 
diff --git a/tests/wpt/metadata-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 295031c1812..338d283eb0e 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
@@ -1,5 +1,4 @@
 [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: TIMEOUT
+    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 3080be9afc0..d913fcbb129 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: 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/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
index f4f994c5d6f..0fbc49ea1c1 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
@@ -1,5 +1,5 @@
 [iframe_sandbox_popups_nonescaping-3.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-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 4db3c97cc62..eb3127be892 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
@@ -5,18 +5,12 @@
   [input type search: setRangeText() a second time (must not fire select)]
     expected: FAIL
 
-  [textarea: selectionEnd a second time (must not fire select)]
-    expected: FAIL
-
   [textarea: setSelectionRange() a second time (must not fire select)]
     expected: FAIL
 
   [input type url: setSelectionRange() 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() a second time (must not fire select)]
     expected: FAIL
 
@@ -29,42 +23,60 @@
   [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 tel: select() a second time (must not fire select)]
     expected: FAIL
 
   [input type url: selectionStart a second time (must not fire select)]
     expected: FAIL
 
-  [input type password: select() a second time (must not fire select)]
-    expected: FAIL
-
   [input type text: 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
-
-  [input type search: selectionStart out of range a second time (must not fire select)]
-    expected: FAIL
-
-  [input type tel: setSelectionRange() a second time (must not fire select)]
-    expected: FAIL
-
   [input type text: selectionDirection 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: setRangeText() a second time (must not fire select)]
+  [input type text: selectionEnd a second time (must not fire select)]
     expected: FAIL
 
-  [input type password: selectionDirection a second time (must not fire select)]
+  [input type tel: setRangeText() a second time (must not fire select)]
     expected: FAIL
 
-  [input type url: 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
+
+  [input type url: selectionEnd 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: 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
+
+  [textarea: selectionStart out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: selectionStart 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/interactive-elements/the-popup-element/popup-shadow-dom.tentative.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/interactive-elements/the-popup-element/popup-shadow-dom.tentative.html.ini
new file mode 100644
index 00000000000..0f485de2499
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/semantics/interactive-elements/the-popup-element/popup-shadow-dom.tentative.html.ini
@@ -0,0 +1,13 @@
+[popup-shadow-dom.tentative.html]
+  [anchor references use the DOM tree not the flat tree]
+    expected: FAIL
+
+  [The popup stack is preserved across shadow-inclusive ancestors]
+    expected: FAIL
+
+  [Popups located inside shadow DOM can still be shown]
+    expected: FAIL
+
+  [anchor references do not cross shadow boundaries]
+    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
new file mode 100644
index 00000000000..59a54fe88e4
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/module-delayed.html.ini
@@ -0,0 +1,4 @@
+[module-delayed.html]
+  [async document.write in a module]
+    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 450c88bd32b..dbec6f2c2ff 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
@@ -3,6 +3,3 @@
   [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/wasm/jsapi/functions/entry.html.ini b/tests/wpt/metadata-layout-2020/wasm/jsapi/functions/entry.html.ini
index 0f5d2ac06e5..b57e831a4ad 100644
--- a/tests/wpt/metadata-layout-2020/wasm/jsapi/functions/entry.html.ini
+++ b/tests/wpt/metadata-layout-2020/wasm/jsapi/functions/entry.html.ini
@@ -1,6 +1,7 @@
 [entry.html]
+  expected: TIMEOUT
   [Start function]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Sanity check: this all works as expected synchronously]
     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 66bd350083b..a56bad443a2 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
@@ -1,4 +1,5 @@
 [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-audiocontext-interface/audiocontext-not-fully-active.html.ini b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiocontext-interface/audiocontext-not-fully-active.html.ini
index f1281b5ae81..b7e13cf7726 100644
--- a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiocontext-interface/audiocontext-not-fully-active.html.ini
+++ b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiocontext-interface/audiocontext-not-fully-active.html.ini
@@ -1,5 +1,4 @@
 [audiocontext-not-fully-active.html]
-  expected: TIMEOUT
   [frame in navigated remote-site frame]
     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
new file mode 100644
index 00000000000..064cf47545b
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/webmessaging/with-ports/017.html.ini
@@ -0,0 +1,5 @@
+[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/017.html.ini b/tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini
new file mode 100644
index 00000000000..064cf47545b
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/webmessaging/without-ports/017.html.ini
@@ -0,0 +1,5 @@
+[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/without-ports/018.html.ini
deleted file mode 100644
index 663a1f8fa30..00000000000
--- a/tests/wpt/metadata-layout-2020/webmessaging/without-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/FileAPI/url/url-in-tags-revoke.window.js.ini b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
index d4f62ed7113..faa00f45ecf 100644
--- a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
@@ -7,7 +7,7 @@
     expected: FAIL
 
   [Opening a blob URL in a new window immediately before revoking it works.]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Opening a blob URL in a noopener about:blank window immediately before revoking it works.]
     expected: TIMEOUT
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 3481353a7c4..6b60f487a89 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -493,6 +493,13 @@
      ]
     },
     "css-tables": {
+     "absolute-crash.html": [
+      "d45582560760c03163d3dc941e4aca6b0f03c588",
+      [
+       null,
+       {}
+      ]
+     ],
      "visibility-collapse-colspan-crash.html": [
       "591fbd9a9941648f1456b41aeee1e23ed660a1ed",
       [
@@ -10845,15 +10852,6 @@
       ]
      ]
     },
-    "css-overscroll-behavior": {
-     "overscroll-behavior-manual.html": [
-      "97f52984a51ae4157ec8ed91ddf4b3b8d405bec6",
-      [
-       null,
-       {}
-      ]
-     ]
-    },
     "css-page": {
      "forced-page-breaks-002.xht": [
       "971dff0bd1681d5f29f2e3b02e300d4d06ec35a9",
@@ -14266,17 +14264,6 @@
      }
     }
    },
-   "dom": {
-    "events": {
-     "document-level-wheel-event-listener-passive-by-default-manual.html": [
-      "4fa67528ff748b6a55d13325b908f722fc511cae",
-      [
-       null,
-       {}
-      ]
-     ]
-    }
-   },
    "dpub-aam": {
     "doc-abstract-manual.html": [
      "b67c7fa424b339973957af9e6423e5120334a167",
@@ -18182,13 +18169,6 @@
       {}
      ]
     ],
-    "pointerevent_touch-action-mouse-manual.html": [
-     "fcc8584515c51d60bb01092ffe1f701273c7bb58",
-     [
-      null,
-      {}
-     ]
-    ],
     "pointerevent_touch-action-rotated-divs_touch-manual.html": [
      "1c09b15f1f99eead72a0689ab14a4facb1c61e3f",
      [
@@ -142111,6 +142091,71 @@
        {}
       ]
      ],
+     "flex-minimum-height-flex-items-026.html": [
+      "9f46c953c4a8396c7dcb58012b16235c0b9e5377",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square-only.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "flex-minimum-height-flex-items-027.html": [
+      "052ff6a5bd89c56b51d76a1782ac87d1a9d1e2c3",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square-only.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "flex-minimum-height-flex-items-028.html": [
+      "45cf76837d345b8e84daec72462f8ae8c42f19b5",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square-only.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "flex-minimum-height-flex-items-029.html": [
+      "62b77b92fc91f206d96b6208d65bfb3bd524088f",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square-only.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "flex-minimum-height-flex-items-030.html": [
+      "a3dc56e59e433e64a6f024c5d9ea8264cb658210",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square-only.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "flex-minimum-width-flex-items-001.xht": [
       "cd18483ba414160c46e30bc282dec0c2fcd2f418",
       [
@@ -142280,6 +142325,32 @@
        {}
       ]
      ],
+     "flex-minimum-width-flex-items-015.html": [
+      "d4020fe75e3ee1e52b07576132f8db2f880ebfcd",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square.xht",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "flex-minimum-width-flex-items-016.html": [
+      "a3f4eb4a85cebf937e5568f7431358af71e388e3",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square-only.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "flex-order.html": [
       "be24b2817e232b7ad7fc936b7b22787591d3d9db",
       [
@@ -143554,6 +143625,19 @@
        {}
       ]
      ],
+     "flexbox-definite-sizes-006.html": [
+      "4b5aaf8dc443ed986dafc334c79dd3d7627698f8",
+      [
+       null,
+       [
+        [
+         "/css/reference/ref-filled-green-100px-square-only.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "flexbox-dyn-resize-001.html": [
       "d64c4bdf28ecb783af4f342d515dcf63134602c6",
       [
@@ -153874,6 +153958,84 @@
         {}
        ]
       ],
+      "replaced-alignment-with-aspect-ratio-004.html": [
+       "437b379332e90ab7ae4a48c17d3f9c7730ba3b98",
+       [
+        null,
+        [
+         [
+          "/css/reference/ref-filled-green-100px-square.xht",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
+      "replaced-alignment-with-aspect-ratio-005.html": [
+       "b14c45d0c2d9cb93577b71df90d430aff37734d6",
+       [
+        null,
+        [
+         [
+          "/css/reference/ref-filled-green-100px-square.xht",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
+      "replaced-alignment-with-aspect-ratio-006.html": [
+       "ed14e36057948ad5c90f702b6181adba8a72cca7",
+       [
+        null,
+        [
+         [
+          "/css/reference/ref-filled-green-100px-square.xht",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
+      "replaced-alignment-with-aspect-ratio-007.html": [
+       "0c841c7654c237dd5cb17f5790cd738a79caef24",
+       [
+        null,
+        [
+         [
+          "/css/reference/ref-filled-green-100px-square.xht",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
+      "replaced-alignment-with-aspect-ratio-008.html": [
+       "9227332851a46f597fbe8bb9d12f5d0b45975cfa",
+       [
+        null,
+        [
+         [
+          "/css/reference/ref-filled-green-100px-square.xht",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
+      "replaced-alignment-with-aspect-ratio-009.html": [
+       "ff721b8f19b4c2c781fd0c3c69d3e44e541d63a8",
+       [
+        null,
+        [
+         [
+          "/css/reference/ref-filled-green-100px-square.xht",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ],
       "self-baseline": {
        "grid-self-baseline-001.html": [
         "2473bb5d4fc8adc351af441bf39cffcacc076273",
@@ -250009,6 +250171,19 @@
          {}
         ]
        ],
+       "popup-inside-display-none.tentative.html": [
+        "824e7005e9b4fc2037c1273b0ad526441a7acb0c",
+        [
+         null,
+         [
+          [
+           "/html/semantics/interactive-elements/the-popup-element/popup-hidden-display-ref.tentative.html",
+           "=="
+          ]
+         ],
+         {}
+        ]
+       ],
        "popup-open-display.tentative.html": [
         "0f6bd930212e2e9dd210c9af5814af5072706588",
         [
@@ -314706,6 +314881,14 @@
         "25b76c3c6f216793a36b1f29287dafd993898c67",
         []
        ],
+       "25x50-green.png": [
+        "6ab02fce0fa9b708880d4dbb2dc2b927fd30f59b",
+        []
+       ],
+       "50x50-green.png": [
+        "6c1406b7dfd7c59f413a183c8896b8c2b3395bf5",
+        []
+       ],
        "style-change.js": [
         "766d140d2b239bcc0c11e92481c5ff302d12db5c",
         []
@@ -353519,7 +353702,7 @@
     ]
    },
    "lint.ignore": [
-    "0c12d66c04586cf2a807da9b25100fd925e01fa4",
+    "e296376fb69cdef8d293d3b13fb620eb20016553",
     []
    ],
    "loading": {
@@ -359207,7 +359390,7 @@
         []
        ],
        "setup-worker-service.html": [
-        "b7a387f47f95d8351572bf74e8f0bc9f1655f4d0",
+        "dd9d9f54e0773e45cdcfa6ffdcaf0cd5d2949cd2",
         []
        ],
        "single-page-test-fail.html": [
@@ -359484,7 +359667,7 @@
      []
     ],
     "testharness.js": [
-     "3623aa4d57e6bdab1fcab1b235646331381df31e",
+     "adfb692ccd9bf202cc5642558c588ab168af7906",
      []
     ],
     "testharness.js.headers": [
@@ -374564,7 +374747,7 @@
      []
     ],
     "utils.js": [
-     "940c2c28b962f326fa94f509ddb1468902f5b150",
+     "9b0a022af8ecfe88b3e7ad72aa5c930d336996ae",
      []
     ],
     "vp9.mp4": [
@@ -400609,6 +400792,13 @@
        {}
       ]
      ],
+     "worker-data-set-timeout.sub.html": [
+      "ac4b608b08c4ed3867f587847cc699a91cedc5c4",
+      [
+       null,
+       {}
+      ]
+     ],
      "worker-eval-blocked.sub.html": [
       "9a264f2a240bfb89b29aeee7ec39fb1e035b0f52",
       [
@@ -407836,6 +408026,13 @@
        {}
       ]
      ],
+     "flex-minimum-height-flex-items-025.html": [
+      "2c1f6fa64c6711b5c4c6dd32d5e2055ff6e47689",
+      [
+       null,
+       {}
+      ]
+     ],
      "flex-minimum-size-001.html": [
       "c2eea80ca5b79818f6b7a9a36ab1ff64826b5218",
       [
@@ -408643,6 +408840,13 @@
        {}
       ]
      ],
+     "justify-content-006.html": [
+      "354763c90ce19d4d41a3b1b2b33db14759b2ab45",
+      [
+       null,
+       {}
+      ]
+     ],
      "justify-content_space-between-002.html": [
       "fde1a7312408d02fe3843452585de2ee660ae6f7",
       [
@@ -415019,6 +415223,15 @@
        {}
       ]
      ],
+     "overscroll-behavior.html": [
+      "f018d5cd8769bc4cf991d437f137d6153d2e7f93",
+      [
+       null,
+       {
+        "testdriver": true
+       }
+      ]
+     ],
      "parsing": {
       "overscroll-behavior-computed.html": [
        "e7b40d95c576016ca041ca167f876119ce431f08",
@@ -418909,7 +419122,7 @@
       ]
      ],
      "fixed-layout-2.html": [
-      "13a4664249f3a758858e190fa9361ffc6b2ed17b",
+      "dcbabb1ff7460ce563c3f127b9215e7b1211434b",
       [
        null,
        {}
@@ -432180,6 +432393,15 @@
        }
       ]
      ],
+     "document-level-wheel-event-listener-passive-by-default.html": [
+      "b7224835fa398b3a81415af4ff288899bf53c266",
+      [
+       null,
+       {
+        "testdriver": true
+       }
+      ]
+     ],
      "event-disabled-dynamic.html": [
       "3f995b02f1b421f376dc6037d42c442307503fb2",
       [
@@ -484721,7 +484943,7 @@
         ]
        ],
        "canvas-aspect-ratio.html": [
-        "f523fd7219b204f1a7ac91805c206563d354e3ba",
+        "91fdc6c86c55595c2484a88a4e026827c3608581",
         [
          null,
          {}
@@ -491914,6 +492136,13 @@
          {}
         ]
        ],
+       "popup-shadow-dom.tentative.html": [
+        "f17bdabac4b2bdd1f2e615e3bf90cf6ee1018059",
+        [
+         null,
+         {}
+        ]
+       ],
        "popup-stacking.tentative.html": [
         "bcba6f064c033aa25291fa7ff4df4ddb4f63d29d",
         [
@@ -508261,7 +508490,7 @@
      ]
     ],
     "showPicker-errors.https.window.js": [
-     "ecc64dfe66d6dd9611b33c75cd2504d11814eaf7",
+     "2310c323d9f37d317a65e2bb6cdcc001ebfa3568",
      [
       "native-file-system/showPicker-errors.https.window.html",
       {
@@ -514295,6 +514524,15 @@
       }
      ]
     ],
+    "pointerevent_touch-action-mouse.html": [
+     "9eb3839ec073a07cd7e820c363a9e84a2b69996e",
+     [
+      null,
+      {
+       "testdriver": true
+      }
+     ]
+    ],
     "pointerevent_touch-action-none-css_touch.html": [
      "2ff161a915c95d1c14916fede40ca76439813cc9",
      [
@@ -553141,7 +553379,7 @@
      },
      "the-oscillatornode-interface": {
       "ctor-oscillator.html": [
-       "36bf604b296c63b213d99408ab38937c62a755dc",
+       "bf50195a5b3bf7a9f49186f7892577381ba80c1a",
        [
         null,
         {}
@@ -553816,7 +554054,7 @@
      ]
     ],
     "video-frame.any.js": [
-     "14cce43baf144aedc57eab1a84dd8517dc2804e0",
+     "b02badc082f3f6627941a1e73e047065c12c95a2",
      [
       "webcodecs/video-frame.any.html",
       {
diff --git a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-002.html.ini b/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-002.html.ini
deleted file mode 100644
index f64b45fea6b..00000000000
--- a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-002.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-002.html]
-  [Hit test float]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-005.html.ini b/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-005.html.ini
deleted file mode 100644
index baa9f1a7541..00000000000
--- a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-005.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-005.html]
-  [Miss clipped float]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-025.html.ini b/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-025.html.ini
new file mode 100644
index 00000000000..375f95fb091
--- /dev/null
+++ b/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-025.html.ini
@@ -0,0 +1,13 @@
+[flex-minimum-height-flex-items-025.html]
+  [.outer-column-flexbox > div 3]
+    expected: FAIL
+
+  [.outer-column-flexbox > div 2]
+    expected: FAIL
+
+  [.outer-column-flexbox > div 1]
+    expected: FAIL
+
+  [.outer-column-flexbox > div 4]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-026.html.ini b/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-026.html.ini
new file mode 100644
index 00000000000..cadef46110d
--- /dev/null
+++ b/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-026.html.ini
@@ -0,0 +1,2 @@
+[flex-minimum-height-flex-items-026.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-027.html.ini b/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-027.html.ini
new file mode 100644
index 00000000000..f2574e7d813
--- /dev/null
+++ b/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-027.html.ini
@@ -0,0 +1,2 @@
+[flex-minimum-height-flex-items-027.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-028.html.ini b/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-028.html.ini
new file mode 100644
index 00000000000..89dfb9f5ece
--- /dev/null
+++ b/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-028.html.ini
@@ -0,0 +1,2 @@
+[flex-minimum-height-flex-items-028.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-030.html.ini b/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-030.html.ini
new file mode 100644
index 00000000000..52441ddb68b
--- /dev/null
+++ b/tests/wpt/metadata/css/css-flexbox/flex-minimum-height-flex-items-030.html.ini
@@ -0,0 +1,2 @@
+[flex-minimum-height-flex-items-030.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-flexbox/flex-minimum-width-flex-items-015.html.ini b/tests/wpt/metadata/css/css-flexbox/flex-minimum-width-flex-items-015.html.ini
new file mode 100644
index 00000000000..d011fb8fc5d
--- /dev/null
+++ b/tests/wpt/metadata/css/css-flexbox/flex-minimum-width-flex-items-015.html.ini
@@ -0,0 +1,2 @@
+[flex-minimum-width-flex-items-015.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-flexbox/justify-content-006.html.ini b/tests/wpt/metadata/css/css-flexbox/justify-content-006.html.ini
new file mode 100644
index 00000000000..eb5dadc9bc9
--- /dev/null
+++ b/tests/wpt/metadata/css/css-flexbox/justify-content-006.html.ini
@@ -0,0 +1,4 @@
+[justify-content-006.html]
+  [.middle > div 1]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/transform-scale-hittest.html.ini b/tests/wpt/metadata/css/css-transforms/transform-scale-hittest.html.ini
index 4a1e8110f6f..f8e7e539aae 100644
--- a/tests/wpt/metadata/css/css-transforms/transform-scale-hittest.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/transform-scale-hittest.html.ini
@@ -2,3 +2,6 @@
   [Hit test intersecting scaled box]
     expected: FAIL
 
+  [Hit test within unscaled box]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/cssom-view/CaretPosition-001.html.ini b/tests/wpt/metadata/css/cssom-view/CaretPosition-001.html.ini
deleted file mode 100644
index 4c79907309b..00000000000
--- a/tests/wpt/metadata/css/cssom-view/CaretPosition-001.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[CaretPosition-001.html]
-  [Element at (400, 100)]
-    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
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 bb136c2f686..b545bbc5496 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -312,27 +312,24 @@
   [<iframe>: separate response Content-Type: text/html */*]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" text/plain]
-    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>: combined response Content-Type: text/html */*]
-    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>: combined response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
+  [<iframe>: separate response Content-Type: text/plain */*]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;x=" text/plain]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;" \\" 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 b4bec16ae8a..258fe374697 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -56,9 +56,6 @@
   [separate text/javascript x/x]
     expected: FAIL
 
-  [separate text/javascript;charset=windows-1252 error text/javascript]
-    expected: FAIL
-
-  [separate text/javascript; charset=windows-1252 text/javascript]
+  [separate text/javascript ]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/cross-origin-resource-policy/image-loads.html.ini b/tests/wpt/metadata/fetch/cross-origin-resource-policy/image-loads.html.ini
deleted file mode 100644
index 7d26a22aeb9..00000000000
--- a/tests/wpt/metadata/fetch/cross-origin-resource-policy/image-loads.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[image-loads.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/metadata/html/browsers/browsing-the-web/navigating-across-documents/javascript-url-return-value-handling-dynamic.html.ini b/tests/wpt/metadata/html/browsers/browsing-the-web/navigating-across-documents/javascript-url-return-value-handling-dynamic.html.ini
index 4c5287a46be..da6ede4494d 100644
--- a/tests/wpt/metadata/html/browsers/browsing-the-web/navigating-across-documents/javascript-url-return-value-handling-dynamic.html.ini
+++ b/tests/wpt/metadata/html/browsers/browsing-the-web/navigating-across-documents/javascript-url-return-value-handling-dynamic.html.ini
@@ -5,3 +5,15 @@
   [Test javascript URL string return values in direct and indirect (target) frame contexts. 9]
     expected: FAIL
 
+  [Test javascript URL string return values in direct and indirect (target) frame contexts. 7]
+    expected: FAIL
+
+  [Test javascript URL string return values in direct and indirect (target) frame contexts. 6]
+    expected: FAIL
+
+  [Test javascript URL string return values in direct and indirect (target) frame contexts. 5]
+    expected: FAIL
+
+  [Test javascript URL string return values in direct and indirect (target) frame contexts. 8]
+    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/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
index fc37df7e3fa..2a166bb97b7 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
@@ -1,6 +1,6 @@
 [iframe_sandbox_popups_escaping-1.html]
   type: testharness
-  expected: TIMEOUT
+  expected: CRASH
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
     expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/html/semantics/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 5f60c78e73c..f6a7aca3306 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,6 +1,5 @@
 [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: TIMEOUT
+    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 963d4cd20ef..9df1ac56f2a 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: 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/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
index f4f994c5d6f..0fbc49ea1c1 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
@@ -1,5 +1,5 @@
 [iframe_sandbox_popups_nonescaping-3.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/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 4db3c97cc62..eb3127be892 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
@@ -5,18 +5,12 @@
   [input type search: setRangeText() a second time (must not fire select)]
     expected: FAIL
 
-  [textarea: selectionEnd a second time (must not fire select)]
-    expected: FAIL
-
   [textarea: setSelectionRange() a second time (must not fire select)]
     expected: FAIL
 
   [input type url: setSelectionRange() 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() a second time (must not fire select)]
     expected: FAIL
 
@@ -29,42 +23,60 @@
   [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 tel: select() a second time (must not fire select)]
     expected: FAIL
 
   [input type url: selectionStart a second time (must not fire select)]
     expected: FAIL
 
-  [input type password: select() a second time (must not fire select)]
-    expected: FAIL
-
   [input type text: 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
-
-  [input type search: selectionStart out of range a second time (must not fire select)]
-    expected: FAIL
-
-  [input type tel: setSelectionRange() a second time (must not fire select)]
-    expected: FAIL
-
   [input type text: selectionDirection 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: setRangeText() a second time (must not fire select)]
+  [input type text: selectionEnd a second time (must not fire select)]
     expected: FAIL
 
-  [input type password: selectionDirection a second time (must not fire select)]
+  [input type tel: setRangeText() a second time (must not fire select)]
     expected: FAIL
 
-  [input type url: 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
+
+  [input type url: selectionEnd 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: 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
+
+  [textarea: selectionStart out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type url: setRangeText() a second time (must not fire select)]
+    expected: FAIL
+
+  [textarea: selectionEnd out of range a second time (must not fire select)]
+    expected: FAIL
+
+  [input type tel: selectionStart 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/interactive-elements/the-popup-element/popup-shadow-dom.tentative.html.ini b/tests/wpt/metadata/html/semantics/interactive-elements/the-popup-element/popup-shadow-dom.tentative.html.ini
new file mode 100644
index 00000000000..0f485de2499
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/interactive-elements/the-popup-element/popup-shadow-dom.tentative.html.ini
@@ -0,0 +1,13 @@
+[popup-shadow-dom.tentative.html]
+  [anchor references use the DOM tree not the flat tree]
+    expected: FAIL
+
+  [The popup stack is preserved across shadow-inclusive ancestors]
+    expected: FAIL
+
+  [Popups located inside shadow DOM can still be shown]
+    expected: FAIL
+
+  [anchor references do not cross shadow boundaries]
+    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
new file mode 100644
index 00000000000..59a54fe88e4
--- /dev/null
+++ b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/module-delayed.html.ini
@@ -0,0 +1,4 @@
+[module-delayed.html]
+  [async document.write in a module]
+    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 01f7b72cbe7..0cef5158fae 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
@@ -4,6 +4,3 @@
   [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/wasm/jsapi/functions/entry.html.ini b/tests/wpt/metadata/wasm/jsapi/functions/entry.html.ini
index 0f5d2ac06e5..b57e831a4ad 100644
--- a/tests/wpt/metadata/wasm/jsapi/functions/entry.html.ini
+++ b/tests/wpt/metadata/wasm/jsapi/functions/entry.html.ini
@@ -1,6 +1,7 @@
 [entry.html]
+  expected: TIMEOUT
   [Start function]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Sanity check: this all works as expected synchronously]
     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 66bd350083b..a56bad443a2 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
@@ -1,4 +1,5 @@
 [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-audiocontext-interface/audiocontext-not-fully-active.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-audiocontext-interface/audiocontext-not-fully-active.html.ini
index f1281b5ae81..b7e13cf7726 100644
--- a/tests/wpt/metadata/webaudio/the-audio-api/the-audiocontext-interface/audiocontext-not-fully-active.html.ini
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-audiocontext-interface/audiocontext-not-fully-active.html.ini
@@ -1,5 +1,4 @@
 [audiocontext-not-fully-active.html]
-  expected: TIMEOUT
   [frame in navigated remote-site frame]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/webmessaging/with-ports/017.html.ini b/tests/wpt/metadata/webmessaging/with-ports/017.html.ini
new file mode 100644
index 00000000000..064cf47545b
--- /dev/null
+++ b/tests/wpt/metadata/webmessaging/with-ports/017.html.ini
@@ -0,0 +1,5 @@
+[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/017.html.ini b/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
new file mode 100644
index 00000000000..064cf47545b
--- /dev/null
+++ b/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
@@ -0,0 +1,5 @@
+[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/without-ports/018.html.ini
deleted file mode 100644
index 663a1f8fa30..00000000000
--- a/tests/wpt/metadata/webmessaging/without-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/web-platform-tests/content-security-policy/script-src/worker-data-set-timeout.sub.html b/tests/wpt/web-platform-tests/content-security-policy/script-src/worker-data-set-timeout.sub.html
new file mode 100644
index 00000000000..ac4b608b08c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/worker-data-set-timeout.sub.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <!-- We add two CSP entries on purpose. The first one does nothing
+    for the purpose of this test, but we want to check that both are
+    inherited -->
+    <meta http-equiv="Content-Security-Policy" content="object-src: 'none'">
+    <meta http-equiv="Content-Security-Policy" content="script-src data: 'self' 'unsafe-inline'; connect-src 'self';">
+    <title>worker-data-set-timeout</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src='../support/testharness-helper.js'></script>
+</head>
+
+<body>
+    <script>
+      fetch('./support/worker-with-script-src-none-set-timeout.js')
+       .then(data => data.text())
+       .then(
+           text => assert_shared_worker_is_loaded(
+               `data:text/javascript,${text}`,
+               "Shared worker with data: url inherits CSP",
+               "setTimeout blocked"));
+    </script>
+</body>
+
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-025.html b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-025.html
new file mode 100644
index 00000000000..2c1f6fa64c6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-025.html
@@ -0,0 +1,56 @@
+<!DOCTYPE html>
+<link rel="author" title="dgrogan@chromium.org" href="mailto:dgrogan@chromium.org" />
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#min-size-auto" />
+<link rel="bookmark" href="https://crbug.com/1033476">
+<meta name="assert" content="Column flex item's height does not influence its min-height content size suggestion in a varitey of scenarios.">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/check-layout-th.js"></script>
+
+<style>
+.outer-column-flexbox {
+  display: flex;
+  flex-direction: column;
+  width: 100px;
+  margin-bottom: 10px; /* Just for visually spacing things out */
+}
+</style>
+
+<body onload="checkLayout('.outer-column-flexbox > div');">
+
+<div id=log></div>
+
+<p>Test passes if there is a sequence of filled green squares.</p>
+
+<!-- %height of descendant is not resolved against specified height for purposes of min-content sizing. -->
+<div class=outer-column-flexbox>
+  <div style="flex-basis: 100px; height: 200px;" data-expected-height=100>
+    <div style="height: 100%; background: green;" data-expected-height=100></div>
+  </div>
+</div>
+
+<!-- Same as above, but with an orthogonal writing mode flex item. -->
+<div class=outer-column-flexbox>
+  <div style="flex-basis: 100px; height: 200px; width: 100px; writing-mode: vertical-rl;" data-expected-height=100>
+    <div style="height: 100%; background: green;" data-expected-height=100></div>
+  </div>
+</div>
+
+<!-- Same as #1 but with a grid child of the flex item. -->
+<div class=outer-column-flexbox>
+  <div style="flex-basis: 100px; height: 200px;" data-expected-height=100>
+    <div style="display: grid; height: 100%; background: green" data-expected-height=100></div>
+  </div>
+</div>
+
+<!-- Same as #1 but with a table child of the flex item that has a >0 intrinsic block size. -->
+<div class=outer-column-flexbox>
+  <div style="flex-basis: 100px; height: 200px;" data-expected-height=100>
+    <table data-expected-height=100 style="height: 100%; width: 100%; background: green">
+      <td>
+        <div style="height: 50px;"></div>
+      </td>
+    </table>
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-026.html b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-026.html
new file mode 100644
index 00000000000..9f46c953c4a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-026.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<link rel="author" title="dgrogan@chromium.org" href="mailto:dgrogan@chromium.org" />
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#min-size-auto" />
+<link rel="match" href="../reference/ref-filled-green-100px-square-only.html" />
+<meta name="assert" content="Child in nested column flexbox's grows to its parent's flex height, not its parent's specified height.">
+<link href="support/flexbox.css" rel="stylesheet">
+
+<p>Test passes if there is a filled green square.</p>
+
+<div class="flexbox column" style="height: 100px;">
+  <!-- min-height: auto resolves to 0 because content-size suggestion is 0. -->
+  <div class="flexbox column" style="flex: 1 0 0px; height: 200px">
+    <!-- min-height: auto resolves to 0 because content-size suggestion is 0. -->
+    <div style="flex: 1 0 0px; width: 100px; background: green;"></div>
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-027.html b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-027.html
new file mode 100644
index 00000000000..052ff6a5bd8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-027.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<link rel="author" title="David Grogan" href="mailto:dgrogan@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#flex-direction-property">
+<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
+<meta name="assert" content="Nested flex item shrinks correctly when its parent has a % height that resolves to smaller than the item's flex-basis." />
+<p>Test passes if there is a filled green square.</p>
+
+<style>
+.OuterFlexbox {
+  display: flex;
+  flex-direction: column;
+  height: 100px;
+  width: 100px;
+}
+
+.InnerFlexbox {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+}
+
+.InnerFlexbox-body {
+  background: green;
+  min-height: 0;
+}
+</style>
+
+<div class="OuterFlexbox">
+  <div class="InnerFlexbox">
+    <div class="InnerFlexbox-body">
+      <div style="height: 200px;">
+    </div>
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-028.html b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-028.html
new file mode 100644
index 00000000000..45cf76837d3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-028.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<link rel="author" title="dgrogan@chromium.org" href="mailto:dgrogan@chromium.org" />
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#min-size-auto" />
+<link rel="match" href="../reference/ref-filled-green-100px-square-only.html" />
+<meta name="assert" content="Intermediate column flex item's specified min-height is honored.">
+<link href="support/flexbox.css" rel="stylesheet">
+
+<p>Test passes if there is a filled green square.</p>
+
+<div class="flexbox column">
+  <div class="flexbox column" style="flex: 1 0 0px; min-height: 100px">
+    <div style="flex: 1 0 0px; width: 100px; background: green;"></div>
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-029.html b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-029.html
new file mode 100644
index 00000000000..62b77b92fc9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-029.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<link rel="author" title="dgrogan@chromium.org" href="mailto:dgrogan@chromium.org" />
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#min-size-auto" />
+<link rel="match" href="../reference/ref-filled-green-100px-square-only.html" />
+<meta name="assert" content="Inner column flexbox doesn't wrap its items because its min-size reported to the outer flexbox accommated the sum of the items' intrinsic block sizes.">
+
+<p>Test passes if there is a filled green square.</p>
+
+<div style="display: flex; flex-direction: column;">
+  <!-- min-height is min(100, 500) = 100 -->
+  <!-- Final height is 100px. -->
+  <div style="display: flex; flex-direction: column; flex-wrap: wrap; flex: 1 0 0px; height: 500px">
+    <!-- min-height is 50 -->
+    <div style="flex: 1 0 0px; width: 100px; background: green;">
+      <div style="height: 50px;"></div>
+    </div>
+    <!-- min-height is 50 -->
+    <div style="flex: 1 0 0px; width: 100px; background: green;">
+      <div style="height: 50px;"></div>
+    </div>
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-030.html b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-030.html
new file mode 100644
index 00000000000..a3dc56e59e4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-height-flex-items-030.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<link rel="author" title="dgrogan@chromium.org" href="mailto:dgrogan@chromium.org" />
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#min-size-auto" />
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#flex-wrap-property" />
+<link rel="match" href="../reference/ref-filled-green-100px-square-only.html" />
+<meta name="assert" content="Inner column flexbox wraps its items when they don't fit in the vertical available space.">
+
+<p>Test passes if there is a filled green square.</p>
+
+<div style="display: flex; flex-direction: column; width: 100px;">
+  <!-- min-height is min(200, 70) = 70 -->
+  <!-- Final height is 70px. Items each have height 100px. They won't both fit, so they need to be wrapped. -->
+  <div style="display: flex; flex-direction: column; flex-wrap: wrap; flex: 1 0 0px; height: 70px">
+    <!-- min-height is 100 -->
+    <div style="flex: 1 0 0px; width: 50px; background: green;">
+      <div style="height: 100px;"></div>
+    </div>
+    <!-- min-height is 100 -->
+    <div style="flex: 1 0 0px; width: 50px; background: green;">
+      <div style="height: 100px;"></div>
+    </div>
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-width-flex-items-015.html b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-width-flex-items-015.html
new file mode 100644
index 00000000000..d4020fe75e3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-width-flex-items-015.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<link rel="author" title="David Grogan" href="mailto:dgrogan@chromium.org" />
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#definite-sizes" />
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#min-size-auto" />
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
+<meta name="assert" content="Column flexbox's imposed definite size on row flexbox is honored when resolving percentages in automatic minimum size algorithm.">
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div style="display: flex; flex-direction: column; width: 100px; height: 444px;">
+  <div style="flex-basis: 100px; display: flex; min-height: 0px;">
+    <!-- min-width is min-height transferred through the aspect ratio: 1 x 100% x 100px = 100px -->
+    <img src="support/200x200-green.png" style="min-height: 100%;">
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-width-flex-items-016.html b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-width-flex-items-016.html
new file mode 100644
index 00000000000..a3f4eb4a85c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/flex-minimum-width-flex-items-016.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<link rel="author" title="dgrogan@chromium.org" href="mailto:dgrogan@chromium.org" />
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#min-size-auto" />
+<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
+<meta name="assert" content="Height of flex item in row flexbox is not ignored when resolving percentages of its descendants to determine content based minimum size suggestion.">
+
+<p>Test passes if there is a filled green square.</p>
+
+<div style="display: flex; width: 0px; height: 20px;">
+  <div style="flex-basis: 50px; height: 100px;">
+    <img src="support/200x200-green.png" style="height: 100%">
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/flexbox-definite-sizes-006.html b/tests/wpt/web-platform-tests/css/css-flexbox/flexbox-definite-sizes-006.html
new file mode 100644
index 00000000000..4b5aaf8dc44
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/flexbox-definite-sizes-006.html
@@ -0,0 +1,12 @@
+<!doctype html>
+<link rel="author" title="David Grogan" href="mailto:dgrogan@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#algo-stretch">
+<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
+<meta name="assert" content="Item stretches to row flexbox's height when the row flexbox has a definite height but is a child of a column flexbox with an indefinite height." />
+<p>Test passes if there is a filled green square.</p>
+
+<div style="display: flex; flex-direction: column;">
+  <div style="height: 100px; display: flex;">
+    <div style="width: 100px; background: green;"></div>
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/justify-content-006.html b/tests/wpt/web-platform-tests/css/css-flexbox/justify-content-006.html
new file mode 100644
index 00000000000..354763c90ce
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/justify-content-006.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<link rel="author" title="David Grogan" href="mailto:dgrogan@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#justify-content-property">
+<meta name="assert" content="Flex item in nested column flexbox is justified properly.">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/check-layout-th.js"></script>
+
+<style>
+.outer {
+  display: flex;
+  flex-direction: column;
+  width: 100px;
+  border: 2px solid black;
+  position: relative;
+}
+.middle {
+  flex: 0 0 50px;
+  min-height: 50px;
+  display: flex;
+  flex-direction: column;
+  justify-content: flex-end;
+}
+</style>
+
+Test passes if orange square is in bottom left corner of rectangle.
+
+<div class="outer">
+  <div class="middle">
+    <div style="width: 30px; height: 30px; background: orange" data-offset-y=20></div>
+  </div>
+</div>
+
+<script>
+checkLayout('.middle > div');
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-004.html b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-004.html
new file mode 100644
index 00000000000..437b379332e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-004.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/5713">
+<meta name="assert" content="If stretch alignment is applied to both axis the aspect-ratio of a replaced element is ignored.">
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div style="display: grid; grid-template: 100px / 100px; width: 100px; height: 100px; background: red;">
+  <img src="support/25x50-green.png" width=25 height=50 style="background: green; align-self: stretch; justify-self: stretch; width: auto; height: auto;"></img>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-005.html b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-005.html
new file mode 100644
index 00000000000..b14c45d0c2d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-005.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/5713">
+<meta name="assert" content="If stretch alignment is applied to both axis the aspect-ratio of a replaced element is ignored.">
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div style="display: grid; grid-template: 100px / 100px; width: 100px; height: 100px; background: red;">
+  <img src="support/25x50-green.png" width=25 height=50 style="background: green; align-self: stretch; justify-self: stretch; width: auto; height: auto; writing-mode: vertical-lr;"></img>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-006.html b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-006.html
new file mode 100644
index 00000000000..ed14e360579
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-006.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/5713">
+<meta name="assert" content="If stretch alignment is applied to both axis the aspect-ratio of a replaced element is ignored, but not when auto margins are present.">
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div style="display: grid; grid-template: 100px / 500px; width: 100px; height: 100px; background: red;">
+  <img src="support/50x50-green.png" width=50 height=50 style="background: green; align-self: stretch; justify-self: stretch; width: auto; height: auto; margin-right: auto;"></img>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-007.html b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-007.html
new file mode 100644
index 00000000000..0c841c7654c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-007.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/5713">
+<meta name="assert" content="If stretch alignment is applied to both axis the aspect-ratio of a replaced element is ignored, but not when auto margins are present.">
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div style="display: grid; grid-template: 500px / 100px; width: 100px; height: 100px; background: red;">
+  <img src="support/50x50-green.png" width=50 height=50 style="background: green; align-self: stretch; justify-self: stretch; width: auto; height: auto; margin-bottom: auto;"></img>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-008.html b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-008.html
new file mode 100644
index 00000000000..9227332851a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-008.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/5713">
+<meta name="assert" content="Stretch alignment in one axis should apply aspect-ratio in the other">
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div style="display: grid; grid-template: 100px / 100px; width: 100px; height: 100px; background: red;">
+  <img src="support/50x50-green.png" width=50 height=50 style="background: green; justify-self: stretch; width: auto; height: auto;"></img>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-009.html b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-009.html
new file mode 100644
index 00000000000..ff721b8f19b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/alignment/replaced-alignment-with-aspect-ratio-009.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/5713">
+<meta name="assert" content="Stretch alignment in one axis should apply aspect-ratio in the other">
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div style="display: grid; grid-template: 100px / 100px; width: 100px; height: 100px; background: red;">
+  <img src="support/50x50-green.png" width=50 height=50 style="background: green; align-self: stretch; width: auto; height: auto;"></img>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/support/25x50-green.png b/tests/wpt/web-platform-tests/css/css-grid/alignment/support/25x50-green.png
new file mode 100644
index 00000000000..6ab02fce0fa
Binary files /dev/null and b/tests/wpt/web-platform-tests/css/css-grid/alignment/support/25x50-green.png differ
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/support/50x50-green.png b/tests/wpt/web-platform-tests/css/css-grid/alignment/support/50x50-green.png
new file mode 100644
index 00000000000..6c1406b7dfd
Binary files /dev/null and b/tests/wpt/web-platform-tests/css/css-grid/alignment/support/50x50-green.png differ
diff --git a/tests/wpt/web-platform-tests/css/css-overscroll-behavior/overscroll-behavior-manual.html b/tests/wpt/web-platform-tests/css/css-overscroll-behavior/overscroll-behavior.html
similarity index 78%
rename from tests/wpt/web-platform-tests/css/css-overscroll-behavior/overscroll-behavior-manual.html
rename to tests/wpt/web-platform-tests/css/css-overscroll-behavior/overscroll-behavior.html
index 97f52984a51..f018d5cd876 100644
--- a/tests/wpt/web-platform-tests/css/css-overscroll-behavior/overscroll-behavior-manual.html
+++ b/tests/wpt/web-platform-tests/css/css-overscroll-behavior/overscroll-behavior.html
@@ -1,6 +1,10 @@
 <!doctype html>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="/css/css-scroll-snap/support/common.js"></script>
 <link rel="help" href="https://drafts.csswg.org/css-overscroll-behavior">
 
 <style>
@@ -57,11 +61,22 @@ setup({explicit_timeout: true});
 const container = document.getElementById('container');
 const non_scrollable = document.getElementById('non_scrollable');
 const root = document.getElementById('root');
+const btnDone = document.getElementById('btnDone');
 var test = async_test("overscroll-behavior prevents scroll-propagation in the area and direction as specified");
 var instruction1 = document.getElementById("i1");
 var instruction2 = document.getElementById("i2");
 var instruction3 = document.getElementById("i3");
 var instruction4 = document.getElementById("i4");
+var actions_promise;
+
+scrollTop = () => container.scrollTop;
+scrollLeft = () => container.scrollLeft;
+
+function smoothScrollByXY(xPosition, yPosition, xScrollOffset, yScrollOffset) {
+  return new test_driver.Actions()
+      .scroll(xPosition, yPosition, xScrollOffset, yScrollOffset)
+      .send();
+}
 
 function setUpForRoot(offset) {
   root.scrollTop = offset;
@@ -137,7 +152,9 @@ function verify_non_scrollable_allows_propagation() {
     assert_equals(root.scrollLeft, 0);
     assert_equals(root.scrollTop, 0);
   }, "overscroll-behavior on non-scrollable area should not affect scroll propagation.");
-  test.done();
+  actions_promise.then( () => {
+    test.done();
+  });
 }
 
 var verifyAndSetupForNext = [
@@ -147,7 +164,7 @@ var verifyAndSetupForNext = [
     verify_inner_allowed_and_set_nonscrollable_allows_propagation,
     verify_non_scrollable_allows_propagation];
 
-on_event(document.getElementById("btnDone"), "click", function() {
+on_event(btnDone, "click", function() {
   if (current_test < verifyAndSetupForNext.length)
     verifyAndSetupForNext[current_test++]();
 });
@@ -155,4 +172,27 @@ on_event(document.getElementById("btnDone"), "click", function() {
 var current_test = 0;
 verifyAndSetupForNext[current_test++]();
 
+// Inject scroll actions.
+const test_cases = [
+  { x: 200, y: 500, dx: -200, dy: -200 },
+  { x: 200, y: 500, dx: -200, dy: -200 },
+  { x: 200, y: 500, dx: -200, dy: -200 },
+  { x: 200, y: 100, dx: -200, dy: -200 },
+];
+
+actions_promise = new Promise( (resolve) => {resolve();} );
+for (let action of test_cases) {
+  actions_promise = actions_promise.then(() => {
+    return smoothScrollByXY(action.x, action.y, 0, action.dy);
+  }).then(() => {
+    return waitForAnimationEnd(scrollTop);
+  }).then(() => {
+    return smoothScrollByXY(action.x, action.y, action.dx, 0);
+  }).then(() => {
+    return waitForAnimationEnd(scrollLeft);
+  }).then(() => {
+    return test_driver.click(btnDone);
+  });
+}
+
 </script>
diff --git a/tests/wpt/web-platform-tests/css/css-tables/absolute-crash.html b/tests/wpt/web-platform-tests/css/css-tables/absolute-crash.html
new file mode 100644
index 00000000000..d4558256076
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-tables/absolute-crash.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<link rel="help" href="https://crbug.com/958381">
+<table style="position: relative; max-height: 10px;">
+  <caption>caption</caption>
+  <td><div id=target style="position: absolute;"></div></td>
+</table>
+<script>
+  document.body.offsetTop;
+  document.getElementById('target').style.top = '10px';
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-tables/fixed-layout-2.html b/tests/wpt/web-platform-tests/css/css-tables/fixed-layout-2.html
index 13a4664249f..dcbabb1ff74 100644
--- a/tests/wpt/web-platform-tests/css/css-tables/fixed-layout-2.html
+++ b/tests/wpt/web-platform-tests/css/css-tables/fixed-layout-2.html
@@ -30,8 +30,8 @@
 
     <hr/>
     <p>This should be a 100px-wide blue square:</p>
-    <p>Table-layout:fixed does not apply to width:min-content/fit-content tables</p>
-    <x-table style="table-layout: auto; width: fit-content; border-spacing: 0px">
+    <p>Table-layout:fixed does apply to width:min-content/fit-content tables</p>
+    <x-table style="table-layout: fixed; width: fit-content; border-spacing: 0px">
         <x-tr>
             <x-td style="padding: 0; background: blue; height: 50px;"><div style="width: 100px"></div></x-td>
             <x-td style="padding: 0"></x-td>
@@ -39,8 +39,8 @@
     </x-table>
     <x-table style="table-layout: fixed; width: min-content; border-spacing: 0px">
         <x-tr>
-            <x-td style="padding: 0; background: blue; height: 50px;"><div style="width: 100px"></div></x-td>
-            <x-td style="padding: 0"></x-td>
+            <x-td style="padding: 0; background: blue; height: 50px;width:100px;"><div style="width: 100px"></div></x-td>
+            <x-td style="padding: 0;height:50px"><div style="width: 100px"></div></x-td>
         </x-tr>
     </x-table>
 
@@ -75,10 +75,10 @@
             'fixed'
         ],
         [
-            "Table-layout:fixed is not applied when width is min-content",
+            "Table-layout:fixed is applied when width is min-content",
             document.querySelector("x-table:nth-of-type(3) > x-tr:first-child > x-td:first-child").offsetWidth,
             document.querySelector("x-table:nth-of-type(4) > x-tr:first-child > x-td:first-child").offsetWidth
-        ],
+        ]
     ])
 
 </script>
diff --git a/tests/wpt/web-platform-tests/dom/events/document-level-wheel-event-listener-passive-by-default-manual.html b/tests/wpt/web-platform-tests/dom/events/document-level-wheel-event-listener-passive-by-default.html
similarity index 76%
rename from tests/wpt/web-platform-tests/dom/events/document-level-wheel-event-listener-passive-by-default-manual.html
rename to tests/wpt/web-platform-tests/dom/events/document-level-wheel-event-listener-passive-by-default.html
index 4fa67528ff7..b7224835fa3 100644
--- a/tests/wpt/web-platform-tests/dom/events/document-level-wheel-event-listener-passive-by-default-manual.html
+++ b/tests/wpt/web-platform-tests/dom/events/document-level-wheel-event-listener-passive-by-default.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://github.com/WICG/interventions/issues/64">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
 <body onload=runTest()>
 <div>This is a manual test since there is no way to synthesize wheel events.
 Scroll by wheel in the middle of the page to run the test.</div>
@@ -35,6 +38,12 @@ function waitFor(condition) {
 
 function runTest() {
   promise_test (async () => {
+    const pos_x = Math.floor(window.innerWidth / 2);
+    const pos_y = Math.floor(window.innerHeight / 2);
+    const delta_x = 0;
+    const delta_y = 100;
+    await new test_driver.Actions()
+       .scroll(pos_x, pos_y, delta_x, delta_y).send();
     await waitFor(()=> { return wheel_arrived; });
     assert_false(cancelable);
   }, "Wheel events are non-cancelable since the event listener is treated as passive.");
diff --git a/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/canvas-aspect-ratio.html b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/canvas-aspect-ratio.html
index f523fd7219b..91fdc6c86c5 100644
--- a/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/canvas-aspect-ratio.html
+++ b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/canvas-aspect-ratio.html
@@ -10,11 +10,18 @@
   }
 </style>
 <body>
+<canvas id="contained" width="250" height="100" style="contain: size;"></canvas>
 <script>
 function assert_ratio(img, expected) {
   let epsilon = 0.001;
   assert_approx_equals(parseInt(getComputedStyle(img).width, 10) / parseInt(getComputedStyle(img).height, 10), expected, epsilon);
 }
+
+test(function() {
+  canvas = document.getElementById("contained");
+  assert_ratio(canvas, 2.5);
+}, "Canvas width and height attributes are used as the surface size with contain:size");
+
 // Create and append a new canvas and immediately check the ratio.
 test(function() {
   var canvas = document.createElement("canvas");
diff --git a/tests/wpt/web-platform-tests/html/semantics/interactive-elements/the-popup-element/popup-inside-display-none.tentative.html b/tests/wpt/web-platform-tests/html/semantics/interactive-elements/the-popup-element/popup-inside-display-none.tentative.html
new file mode 100644
index 00000000000..824e7005e9b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/interactive-elements/the-popup-element/popup-inside-display-none.tentative.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<link rel=author title="Mason Freed" href="mailto:masonfreed@chromium.org">
+<link rel=help href="https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/Popup/explainer.md">
+<link rel=match href="popup-hidden-display-ref.tentative.html">
+
+No popup should be displayed here.<p>
+
+<div style="display:none">
+    <popup>This content should be hidden</popup>
+</div>
+
+<script>
+  const popup = document.querySelector('popup');
+  popup.show();
+  if (!popup.open)
+    document.body.appendChild(document.createTextNode('FAIL'));
+</script>
diff --git a/tests/wpt/web-platform-tests/html/semantics/interactive-elements/the-popup-element/popup-shadow-dom.tentative.html b/tests/wpt/web-platform-tests/html/semantics/interactive-elements/the-popup-element/popup-shadow-dom.tentative.html
new file mode 100644
index 00000000000..f17bdabac4b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/interactive-elements/the-popup-element/popup-shadow-dom.tentative.html
@@ -0,0 +1,165 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<link rel="author" title="Mason Freed" href="mailto:masonfreed@chromium.org">
+<link rel=help href="https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/Popup/explainer.md">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<script>
+  function ensureShadowDom(host) {
+    host.querySelectorAll('my-element').forEach(host => {
+      if (host.shadowRoot)
+        return; // Declarative Shadow DOM is enabled
+      const template = host.firstElementChild;
+      assert_true(template instanceof HTMLTemplateElement);
+      const shadow = host.attachShadow({mode: 'open'});
+      shadow.appendChild(template.content);
+      template.remove();
+    })
+  }
+  function findPopups(root) {
+    let popups = [];
+    if (!root)
+      return popups;
+    if (root instanceof HTMLPopupElement)
+      popups.push(root);
+    popups.push(...findPopups(root.shadowRoot));
+    root.childNodes.forEach(child => {
+      popups.push(...findPopups(child));
+    })
+    return popups;
+  }
+  function getPopupReferences(testId) {
+    const testRoot = document.querySelector(`#${testId}`);
+    assert_true(!!testRoot);
+    ensureShadowDom(testRoot);
+    return findPopups(testRoot);
+  }
+  function popupVisible(popup) {
+    const style = getComputedStyle(popup);
+    return !!(style.display !== "none" && style.visibility !== "hidden" &&
+      (popup.offsetWidth || popup.offsetHeight || popup.getClientRects().length));
+  }
+  function showPopup(testId,popupNum) {
+    getPopupReferences(testId)[popupNum].show();
+  }
+</script>
+
+<div id=test1>
+  <button onclick='showPopup("test1",0)'>Test1 Popup</button>
+  <my-element>
+    <template shadowroot=open>
+      <popup>
+        <p>This should show, even though it is inside shadow DOM.</p>
+      </popup>
+    </template>
+  </my-element>
+</div>
+
+<script>
+  test(function() {
+    const popup = getPopupReferences('test1')[0];
+    popup.show();
+    assert_true(popup.open);
+    assert_true(popupVisible(popup));
+  }, "Popups located inside shadow DOM can still be shown");
+</script>
+
+
+<div id=test2>
+  <button id=t2b1 onclick='showPopup("test2",0)'>Test 2 Popup 1</button>
+  <popup anchor=t2b1 style="top: 400px;">
+    <p>Popup 1</p>
+    <button id=t2b2 onclick='showPopup("test2",1)'>Test 2 Popup 2</button>
+    <my-element>
+      <template shadowroot=open>
+        <popup anchor=t2b2 style="top: 400px;">
+          <p>This popup can never be visible:</p>
+          <p>Hiding this popup will hide *all* open popups,</p>
+          <p>because t2b2 doesn't exist in this context.</p>
+          <p>And since popup 1 is not shown, it is display:none,</p>
+          <p>which means no child content is shown at all.</p>
+        </popup>
+      </template>
+    </my-element>
+  </popup>
+</div>
+
+<script>
+  test(function() {
+    const [popup1,popup2] = getPopupReferences('test2');
+    popup1.show();
+    assert_true(popup1.open);
+    assert_true(popupVisible(popup1));
+    popup2.show();
+    assert_false(popup1.open); // P1 was closed by P2
+    assert_true(popup2.open); // P2 thinks it is open
+    assert_false(popupVisible(popup1)); // But neither is visible
+    assert_false(popupVisible(popup2));
+  }, "anchor references do not cross shadow boundaries");
+</script>
+
+
+<div id=test3>
+  <my-element>
+    <template shadowroot=open>
+      <button id=t3b1 onclick='showPopup("test3",0)'>Test 3 Popup 1</button>
+      <popup anchor=t3b1>
+        <p>This popup will be hidden when popup2 shows.</p>
+        <slot></slot>
+      </popup>
+    </template>
+    <button id=t3b2 onclick='showPopup("test3",1)'>Test 3 Popup 2</button>
+  </my-element>
+  <popup anchor=t3b2>Popup 2</popup>
+</div>
+
+<script>
+  test(function() {
+    const [popup1,popup2] = getPopupReferences('test3');
+    popup1.show();
+    assert_true(popup1.open);
+    assert_true(popupVisible(popup1));
+    // Showing popup2 will close popup1, since it is not a DOM
+    // tree ancestor of popup2's anchor button.
+    popup2.show();
+    assert_true(popup2.open);
+    assert_true(popupVisible(popup2));
+    assert_false(popup1.open);
+    assert_false(popupVisible(popup1));
+    popup2.hide();
+  }, "anchor references use the DOM tree not the flat tree");
+</script>
+
+
+<div id=test4>
+  <button id=t4b1 onclick='showPopup("test4",0)'>Test 4 Popup 1</button>
+  <popup anchor=t4b1>
+    <p>This should not get hidden when popup2 opens.</p>
+    <my-element>
+      <template shadowroot=open>
+        <button id=t4b2 onclick='showPopup("test4",1)'>Test 4 Popup 2</button>
+        <popup anchor=t4b2>
+          <p>This should not hide popup1.</p>
+        </popup>
+      </template>
+    </my-element>
+  </popup>
+</div>
+
+<script>
+  test(function() {
+    const [popup1,popup2] = getPopupReferences('test4');
+    popup1.show();
+    popup2.show();
+    // Both 1 and 2 should be open at this point.
+    assert_true(popup1.open);
+    assert_true(popupVisible(popup1));
+    assert_true(popup2.open);
+    assert_true(popupVisible(popup2));
+    // This should hide both of them.
+    popup1.hide();
+    assert_false(popup2.open);
+    assert_false(popupVisible(popup2));
+  }, "The popup stack is preserved across shadow-inclusive ancestors");
+</script>
diff --git a/tests/wpt/web-platform-tests/lint.ignore b/tests/wpt/web-platform-tests/lint.ignore
index 0c12d66c045..e296376fb69 100644
--- a/tests/wpt/web-platform-tests/lint.ignore
+++ b/tests/wpt/web-platform-tests/lint.ignore
@@ -613,6 +613,9 @@ CSS-COLLIDING-SUPPORT-NAME: css/css-backgrounds/support/50x50-green.png
 CSS-COLLIDING-SUPPORT-NAME: css/css-grid/grid-items/support/50x50-green.png
 CSS-COLLIDING-SUPPORT-NAME: css/CSS2/support/50x50-green.png
 CSS-COLLIDING-SUPPORT-NAME: css/CSS2/ui/support/animated.gif
+CSS-COLLIDING-SUPPORT-NAME: css/css-grid/alignment/support/50x50-green.png
+CSS-COLLIDING-SUPPORT-NAME: css/css-grid/alignment/support/25x50-green.png
+CSS-COLLIDING-SUPPORT-NAME: css/css-grid/grid-items/support/25x50-green.png
 CSS-COLLIDING-SUPPORT-NAME: css/CSS2/backgrounds/support/animated.gif
 CSS-COLLIDING-SUPPORT-NAME: css/css-shapes/shape-outside/shape-image/support/animated.gif
 CSS-COLLIDING-SUPPORT-NAME: css/css-display/support/util.js
diff --git a/tests/wpt/web-platform-tests/native-file-system/showPicker-errors.https.window.js b/tests/wpt/web-platform-tests/native-file-system/showPicker-errors.https.window.js
index ecc64dfe66d..2310c323d9f 100644
--- a/tests/wpt/web-platform-tests/native-file-system/showPicker-errors.https.window.js
+++ b/tests/wpt/web-platform-tests/native-file-system/showPicker-errors.https.window.js
@@ -84,7 +84,7 @@ function define_file_picker_error_tests(showPickerMethod) {
     await promise_rejects_js(t, TypeError, self[showPickerMethod]({
       startIn: 'secrets',
     }));
-  }, showPickerMethod + ': unknown common starting directory.');
+  }, showPickerMethod + ': unknown well-known starting directory.');
 
   const invalid_extensions = {
     '.extensiontoolong': 'extension length more than 16.',
diff --git a/tests/wpt/web-platform-tests/pointerevents/pointerevent_touch-action-mouse-manual.html b/tests/wpt/web-platform-tests/pointerevents/pointerevent_touch-action-mouse.html
similarity index 87%
rename from tests/wpt/web-platform-tests/pointerevents/pointerevent_touch-action-mouse-manual.html
rename to tests/wpt/web-platform-tests/pointerevents/pointerevent_touch-action-mouse.html
index fcc8584515c..9eb3839ec07 100644
--- a/tests/wpt/web-platform-tests/pointerevents/pointerevent_touch-action-mouse-manual.html
+++ b/tests/wpt/web-platform-tests/pointerevents/pointerevent_touch-action-mouse.html
@@ -6,6 +6,9 @@
         <link rel="stylesheet" type="text/css" href="pointerevent_styles.css">
         <script src="/resources/testharness.js"></script>
         <script src="/resources/testharnessreport.js"></script>
+        <script src="/resources/testdriver.js"></script>
+        <script src="/resources/testdriver-actions.js"></script>
+        <script src="/resources/testdriver-vendor.js"></script>
         <script src="pointerevent_support.js"></script>
         <style>
             #target0 {
@@ -86,6 +89,7 @@
                 var target0 = document.getElementById("target0");
 
                 var test_touchaction = async_test("touch-action attribute test");
+                var actions_promise;
 
                 xScr0 = target0.scrollLeft;
                 yScr0 = target0.scrollTop;
@@ -111,10 +115,22 @@
                     }
 
                     if(xScrollIsReceived && yScrollIsReceived) {
-                        test_touchaction.done();
+                        // Make sure the test finishes after all the input actions are completed.
+                        actions_promise.then( () => {
+                            test_touchaction.done();
+                        });
                         updateDescriptionComplete();
                     }
                 });
+
+                const posOffsetX = 0;
+                const posOffsetY = 0;
+                const scrollDeltaX = 200;
+                const scrollDeltaY = 200;
+                actions_promise = new test_driver.Actions()
+                    .scroll(posOffsetX, posOffsetY, scrollDeltaX, scrollDeltaY,
+                            {origin: target0})
+                    .send();
             }
 
             function updateDescriptionNextStepMouse() {
diff --git a/tests/wpt/web-platform-tests/resources/test/tests/functional/setup-worker-service.html b/tests/wpt/web-platform-tests/resources/test/tests/functional/setup-worker-service.html
index b7a387f47f9..dd9d9f54e07 100644
--- a/tests/wpt/web-platform-tests/resources/test/tests/functional/setup-worker-service.html
+++ b/tests/wpt/web-platform-tests/resources/test/tests/functional/setup-worker-service.html
@@ -80,24 +80,6 @@ promise_test(function() {
         "\"navigator.serviceWorker exists\""
       ],
       "status": 0
-    },
-    {
-      "assert_name": "assert_true",
-      "test": null,
-      "args": [
-        "true",
-        "\"True is true\""
-      ],
-      "status": 0
-    },
-    {
-      "assert_name": "assert_false",
-      "test": "Worker test",
-      "args": [
-        "false",
-        "\"False is false\""
-      ],
-      "status": 0
     }
   ],
   "type": "complete"
diff --git a/tests/wpt/web-platform-tests/resources/testharness.js b/tests/wpt/web-platform-tests/resources/testharness.js
index 3623aa4d57e..adfb692ccd9 100644
--- a/tests/wpt/web-platform-tests/resources/testharness.js
+++ b/tests/wpt/web-platform-tests/resources/testharness.js
@@ -3570,9 +3570,11 @@ policies and contribution forms [3].
                 escape_html(test.message ? tests[i].message : " ") +
                 (tests[i].stack ? "<pre>" +
                  escape_html(tests[i].stack) +
-                 "</pre>": "") +
-                 "<details><summary>Asserts run</summary>" + get_asserts_output(test) + "</details>"
-                "</td></tr>";
+                 "</pre>": "");
+            if (!(test instanceof RemoteTest)) {
+                 html += "<details><summary>Asserts run</summary>" + get_asserts_output(test) + "</details>"
+            }
+            html += "</td></tr>";
         }
         html += "</tbody></table>";
         try {
diff --git a/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-oscillatornode-interface/ctor-oscillator.html b/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-oscillatornode-interface/ctor-oscillator.html
index 36bf604b296..bf50195a5b3 100644
--- a/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-oscillatornode-interface/ctor-oscillator.html
+++ b/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-oscillatornode-interface/ctor-oscillator.html
@@ -95,8 +95,14 @@
         };
         should(() => {
           node = new OscillatorNode(context, options);
-        }, 'new OscillatorNode(, ' + JSON.stringify(options) + ')').notThrow();
+        }, 'new OscillatorNode(c, ' + JSON.stringify(options) + ')').notThrow();
 
+        should(
+            () => {
+              node = new OscillatorNode(context, {periodicWave: null});
+            },
+            'new OscillatorNode(c, {periodicWave: null}')
+            .throw(DOMException, 'TypeError');
         task.done();
       });
 
diff --git a/tests/wpt/web-platform-tests/webcodecs/utils.js b/tests/wpt/web-platform-tests/webcodecs/utils.js
index 940c2c28b96..9b0a022af8e 100644
--- a/tests/wpt/web-platform-tests/webcodecs/utils.js
+++ b/tests/wpt/web-platform-tests/webcodecs/utils.js
@@ -123,4 +123,20 @@ function testUnconfiguredCodec(test, codec, codecInput) {
   encodeOrDecodeShouldThrow(codec, codecInput);
 
   return promise_rejects_dom(test, 'InvalidStateError', codec.flush(), 'flush');
-}
\ No newline at end of file
+}
+
+// Verifies a PlaneInit structure matches the actual constructed plane.
+function verifyPlane(expected, actual) {
+  assert_less_than_equal(expected.stride, actual.stride, 'plane strides');
+  assert_equals(expected.rows, actual.rows, 'plane rows');
+  assert_less_than_equal(
+      expected.stride * expected.rows, actual.length, 'plane size');
+
+  var testBuffer = new Uint8Array(actual.length);
+  actual.readInto(testBuffer);
+  for (var h = 0; h < actual.rows; ++h) {
+    assert_array_equals(
+        expected.src.slice(h * expected.stride, expected.stride),
+        testBuffer.slice(h * actual.stride, expected.stride), 'plane data');
+  }
+}
diff --git a/tests/wpt/web-platform-tests/webcodecs/video-frame.any.js b/tests/wpt/web-platform-tests/webcodecs/video-frame.any.js
index 14cce43baf1..b02badc082f 100644
--- a/tests/wpt/web-platform-tests/webcodecs/video-frame.any.js
+++ b/tests/wpt/web-platform-tests/webcodecs/video-frame.any.js
@@ -97,3 +97,324 @@ test(t => {
     let frame = new VideoFrame(image, {timestamp: 10});
   })
 }, 'Test constructing VideoFrames from closed ImageBitmap throws.');
+
+test(t => {
+  let vfInit = {timestamp: 1234, codedWidth: 4, codedHeight: 2};
+  assert_throws_js(TypeError, () => {
+    let frame = new VideoFrame('ABCD', [], vfInit);
+  }, 'invalid pixel format');
+
+  assert_throws_dom('ConstraintError', () => {
+    let frame = new VideoFrame('ARGB', [], {timestamp: 1234});
+  }, 'missing coded size');
+
+  function constructFrame(init) {
+    let yPlaneData = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);  // 4x2
+    let uPlaneData = new Uint8Array([1, 2]);                    // 2x1
+    let yPlane = {src: yPlaneData, stride: 4, rows: 2};
+    let uPlane = vPlane = {src: uPlaneData, stride: 2, rows: 1};
+    let frame = new VideoFrame('I420', [yPlane, uPlane, vPlane], init);
+  }
+
+  assert_throws_dom(
+      'ConstraintError', () => {constructFrame({
+                           timestamp: 1234,
+                           codedWidth: 1 << 32 - 1,
+                           codedHeight: 1 << 32 - 1
+                         })},
+      'invalid coded size');
+  assert_throws_dom(
+      'ConstraintError',
+      () => {constructFrame({timestamp: 1234, codedWidth: 4, codedHeight: 0})},
+      'invalid coded height');
+  assert_throws_dom(
+      'ConstraintError',
+      () => {constructFrame({timestamp: 1234, codedWidth: 0, codedHeight: 4})},
+      'invalid coded width');
+  assert_throws_dom(
+      'ConstraintError', () => {constructFrame({
+                           timestamp: 1234,
+                           codedWidth: 4,
+                           codedHeight: 2,
+                           cropLeft: 100,
+                           cropRight: 100
+                         })},
+      'invalid crop left/right');
+  assert_throws_dom(
+      'ConstraintError',
+      () => {constructFrame(
+          {timestamp: 1234, codedWidth: 4, codedHeight: 2, cropWidth: 0})},
+      'invalid crop width');
+  assert_throws_dom(
+      'ConstraintError',
+      () => {constructFrame(
+          {timestamp: 1234, codedWidth: 4, codedHeight: 2, cropHeight: 0})},
+      'invalid crop height');
+  assert_throws_dom(
+      'ConstraintError', () => {constructFrame({
+                           timestamp: 1234,
+                           codedWidth: 4,
+                           codedHeight: 2,
+                           cropHeight: -1,
+                           cropWidth: -100
+                         })},
+      'invalid negative crop');
+  assert_throws_dom(
+      'ConstraintError', () => {constructFrame({
+                           timestamp: 1234,
+                           codedWidth: 4,
+                           codedHeight: 2,
+                           displayWidth: 1 << 32 - 1
+                         })},
+      'invalid display width');
+  assert_throws_dom(
+      'ConstraintError', () => {constructFrame({
+                           timestamp: 1234,
+                           codedWidth: 4,
+                           codedHeight: 2,
+                           displayWidth: 1 << 32 - 1,
+                           displayHeight: 1 << 32
+                         })},
+      'invalid display height');
+}, 'Test invalid planar constructed VideoFrames');
+
+test(t => {
+  let fmt = 'I420';
+  let vfInit = {timestamp: 1234, codedWidth: 4, codedHeight: 2};
+  let yPlaneData = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);  // 4x2
+  let uPlaneData = new Uint8Array([1, 2]);                    // 2x1
+  let yPlane = {src: yPlaneData, stride: 4, rows: 2};
+  let uPlane = vPlane = {src: uPlaneData, stride: 2, rows: 1};
+  let frame = new VideoFrame(fmt, [yPlane, uPlane, vPlane], vfInit);
+  assert_equals(frame.planes.length, 3, 'plane count');
+  assert_equals(frame.format, fmt, 'plane format');
+  verifyPlane(yPlane, frame.planes[0]);
+  verifyPlane(uPlane, frame.planes[1]);
+  verifyPlane(vPlane, frame.planes[2]);
+  frame.close();
+
+  assert_throws_dom('ConstraintError', () => {
+    let frame = new VideoFrame(fmt, [yPlane, uPlane], vfInit);
+  }, 'too few planes');
+  assert_throws_dom('ConstraintError', () => {
+    let badYPlane = {...yPlane};
+    badYPlane.stride = 1;
+    let frame = new VideoFrame(fmt, [badYPlane, uPlane, vPlane], vfInit);
+  }, 'y stride too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badUPlane = {...uPlane};
+    badUPlane.stride = 1;
+    let frame = new VideoFrame(fmt, [yPlane, badUPlane, vPlane], vfInit);
+  }, 'u stride too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badVPlane = {...vPlane};
+    badVPlane.stride = 1;
+    let frame = new VideoFrame(fmt, [yPlane, uPlane, badVPlane], vfInit);
+  }, 'v stride too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badYPlane = {...yPlane};
+    badYPlane.rows = 1;
+    let frame = new VideoFrame(fmt, [badYPlane, uPlane, vPlane], vfInit);
+  }, 'y height too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badUPlane = {...uPlane};
+    badUPlane.rows = 0;
+    let frame = new VideoFrame(fmt, [yPlane, badUPlane, vPlane], vfInit);
+  }, 'u height too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badVPlane = {...vPlane};
+    badVPlane.rows = 0;
+    let frame = new VideoFrame(fmt, [yPlane, uPlane, badVPlane], vfInit);
+  }, 'v height too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badYPlane = {...yPlane};
+    badYPlane.rows = 100;
+    let frame = new VideoFrame(fmt, [badYPlane, uPlane, vPlane], vfInit);
+  }, 'y height too large');
+  assert_throws_dom('ConstraintError', () => {
+    let badUPlane = {...uPlane};
+    badUPlane.rows = 100;
+    let frame = new VideoFrame(fmt, [yPlane, badUPlane, vPlane], vfInit);
+  }, 'u height too large');
+  assert_throws_dom('ConstraintError', () => {
+    let badVPlane = {...vPlane};
+    badVPlane.rows = 100;
+    let frame = new VideoFrame(fmt, [yPlane, uPlane, badVPlane], vfInit);
+  }, 'v height too large');
+  assert_throws_dom('ConstraintError', () => {
+    let badYPlane = {...yPlane};
+    badYPlane.src = yPlaneData.slice(1, 4);
+    let frame = new VideoFrame(fmt, [badYPlane, uPlane, vPlane], vfInit);
+  }, 'y plane size too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badUPlane = {...uPlane};
+    badUPlane.src = uPlaneData.slice(1, 1);
+    let frame = new VideoFrame(fmt, [yPlane, badUPlane, vPlane], vfInit);
+  }, 'u plane size too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badVPlane = {...vPlane};
+    badVPlane.src = uPlaneData.slice(1, 1);
+    let frame = new VideoFrame(fmt, [yPlane, uPlane, badVPlane], vfInit);
+  }, 'v plane size too small');
+}, 'Test planar constructed I420 VideoFrame');
+
+test(t => {
+  let fmt = 'I420';
+  let vfInit = {timestamp: 1234, codedWidth: 4, codedHeight: 2};
+  let yPlaneData = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);  // 4x2
+  let uPlaneData = new Uint8Array([1, 2]);                    // 2x1
+  let yPlane = {src: yPlaneData, stride: 4, rows: 2};
+  let uPlane = vPlane = {src: uPlaneData, stride: 2, rows: 1};
+  let aPlaneData = yPlaneData.reverse();
+  let aPlane = {src: aPlaneData, stride: 4, rows: 2};
+  let frame = new VideoFrame(fmt, [yPlane, uPlane, vPlane, aPlane], vfInit);
+  assert_equals(frame.planes.length, 4, 'plane count');
+  assert_equals(frame.format, fmt, 'plane format');
+  verifyPlane(yPlane, frame.planes[0]);
+  verifyPlane(uPlane, frame.planes[1]);
+  verifyPlane(vPlane, frame.planes[2]);
+  verifyPlane(aPlane, frame.planes[3]);
+  frame.close();
+
+  // Most constraints are tested as part of I420 above.
+
+  assert_throws_dom('ConstraintError', () => {
+    let badAPlane = {...aPlane};
+    badAPlane.stride = 1;
+    let frame =
+        new VideoFrame(fmt, [yPlane, uPlane, vPlane, badAPlane], vfInit);
+  }, 'a stride too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badAPlane = {...aPlane};
+    badAPlane.rows = 1;
+    let frame =
+        new VideoFrame(fmt, [yPlane, uPlane, vPlane, badAPlane], vfInit);
+  }, 'a height too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badAPlane = {...aPlane};
+    badAPlane.rows = 100;
+    let frame =
+        new VideoFrame(fmt, [yPlane, uPlane, vPlane, badAPlane], vfInit);
+  }, 'a height too large');
+  assert_throws_dom('ConstraintError', () => {
+    let badAPlane = {...yPlane};
+    badAPlane.src = aPlaneData.slice(1, 4);
+    let frame =
+        new VideoFrame(fmt, [yPlane, uPlane, vPlane, badAPlane], vfInit);
+  }, 'a plane size too small');
+}, 'Test planar constructed I420+Alpha VideoFrame');
+
+test(t => {
+  let fmt = 'NV12';
+  let vfInit = {timestamp: 1234, codedWidth: 4, codedHeight: 2};
+  let yPlaneData = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);  // 4x2
+  let yPlane = {src: yPlaneData, stride: 4, rows: 2};
+  let uvPlaneData = new Uint8Array([1, 2, 3, 4]);
+  let uvPlane = {src: uvPlaneData, stride: 4, rows: 1};
+  frame = new VideoFrame(fmt, [yPlane, uvPlane], vfInit);
+  assert_equals(frame.planes.length, 2, 'plane count');
+  assert_equals(frame.format, fmt, 'plane format');
+  verifyPlane(yPlane, frame.planes[0]);
+  verifyPlane(uvPlane, frame.planes[1]);
+  frame.close();
+
+  assert_throws_dom('ConstraintError', () => {
+    let frame = new VideoFrame(fmt, [yPlane], vfInit);
+  }, 'too few planes');
+  assert_throws_dom('ConstraintError', () => {
+    let badYPlane = {...yPlane};
+    badYPlane.stride = 1;
+    let frame = new VideoFrame(fmt, [badYPlane, uvPlane], vfInit);
+  }, 'y stride too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badUVPlane = {...uvPlane};
+    badUVPlane.stride = 2;
+    let frame = new VideoFrame(fmt, [yPlane, badUVPlane], vfInit);
+  }, 'uv stride too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badYPlane = {...yPlane};
+    badYPlane.rows = 1;
+    let frame = new VideoFrame(fmt, [badYPlane, uvPlane], vfInit);
+  }, 'y height too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badUVPlane = {...uvPlane};
+    badUVPlane.rows = 0;
+    let frame = new VideoFrame(fmt, [yPlane, badUVPlane], vfInit);
+  }, 'uv height too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badYPlane = {...yPlane};
+    badYPlane.rows = 100;
+    let frame = new VideoFrame(fmt, [badYPlane, uvPlane], vfInit);
+  }, 'y height too large');
+  assert_throws_dom('ConstraintError', () => {
+    let badUVPlane = {...uvPlane};
+    badUVPlane.rows = 100;
+    let frame = new VideoFrame(fmt, [yPlane, badUVPlane], vfInit);
+  }, 'u height too large');
+  assert_throws_dom('ConstraintError', () => {
+    let badYPlane = {...yPlane};
+    badYPlane.src = yPlaneData.slice(1, 4);
+    let frame = new VideoFrame(fmt, [badYPlane, uvPlane], vfInit);
+  }, 'y plane size too small');
+  assert_throws_dom('ConstraintError', () => {
+    let badUVPlane = {...uvPlane};
+    badUVPlane.src = uvPlaneData.slice(1, 1);
+    let frame = new VideoFrame(fmt, [yPlane, badUVPlane], vfInit);
+  }, 'u plane size too small');
+}, 'Test planar constructed NV12 VideoFrame');
+
+test(t => {
+  let vfInit = {timestamp: 1234, codedWidth: 4, codedHeight: 2};
+  let argbPlaneData =
+      new Uint8Array(new Uint32Array([1, 2, 3, 4, 5, 6, 7, 8]).buffer);
+  let argbPlane = {src: argbPlaneData, stride: 4 * 4, rows: 2};
+  frame = new VideoFrame('ABGR', [argbPlane], vfInit);
+  assert_equals(frame.planes.length, 1, 'plane count');
+  assert_equals(frame.format, 'ABGR', 'plane format');
+  verifyPlane(argbPlane, frame.planes[0]);
+  frame.close();
+
+  frame = new VideoFrame('ARGB', [argbPlane], vfInit);
+  assert_equals(frame.planes.length, 1, 'plane count');
+  assert_equals(frame.format, 'ARGB', 'plane format');
+  verifyPlane(argbPlane, frame.planes[0]);
+  frame.close();
+
+  frame = new VideoFrame('XBGR', [argbPlane], vfInit);
+  assert_equals(frame.planes.length, 1, 'plane count');
+  assert_equals(frame.format, 'XBGR', 'plane format');
+  verifyPlane(argbPlane, frame.planes[0]);
+  frame.close();
+
+  frame = new VideoFrame('XRGB', [argbPlane], vfInit);
+  assert_equals(frame.planes.length, 1, 'plane count');
+  assert_equals(frame.format, 'XRGB', 'plane format');
+  verifyPlane(argbPlane, frame.planes[0]);
+  frame.close();
+
+  ['ABGR', 'ARGB', 'XBGR', 'XRGB'].forEach(fmt => {
+    assert_throws_dom('ConstraintError', () => {
+      let frame = new VideoFrame(fmt, [], vfInit);
+    }, fmt + ': too few planes');
+    assert_throws_dom('ConstraintError', () => {
+      let badARGBPlane = {...argbPlane};
+      badARGBPlane.stride = 1;
+      let frame = new VideoFrame(fmt, [badARGBPlane], vfInit);
+    }, fmt + ': stride too small');
+    assert_throws_dom('ConstraintError', () => {
+      let badARGBPlane = {...argbPlane};
+      badARGBPlane.rows = 1;
+      let frame = new VideoFrame(fmt, [badARGBPlane], vfInit);
+    }, fmt + ': height too small');
+    assert_throws_dom('ConstraintError', () => {
+      let badARGBPlane = {...argbPlane};
+      badARGBPlane.rows = 100;
+      let frame = new VideoFrame(fmt, [badARGBPlane], vfInit);
+    }, fmt + ': height too large');
+    assert_throws_dom('ConstraintError', () => {
+      let badARGBPlane = {...argbPlane};
+      badARGBPlane.src = argbPlaneData.slice(1, 4);
+      let frame = new VideoFrame(fmt, [badARGBPlane], vfInit);
+    }, fmt + ': plane size too small');
+  });
+}, 'Test planar constructed RGB VideoFrames');