diff --git a/tests/wpt/metadata-layout-2020/FileAPI/url/url-charset.window.js.ini b/tests/wpt/metadata-layout-2020/FileAPI/url/url-charset.window.js.ini
new file mode 100644
index 00000000000..7248ba77bd5
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/FileAPI/url/url-charset.window.js.ini
@@ -0,0 +1,5 @@
+[url-charset.window.html]
+  expected: TIMEOUT
+  [Blob charset should override any auto-detected charset.]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
index 6ef8bb1049f..171592fc08f 100644
--- a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
+++ b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
@@ -2,6 +2,3 @@
   [elementsFromPoint on the root document for points in iframe elements]
     expected: FAIL
 
-  [elementsFromPoint on inner documents]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/custom-elements/reactions/HTMLMediaElement.html.ini b/tests/wpt/metadata-layout-2020/custom-elements/reactions/HTMLMediaElement.html.ini
new file mode 100644
index 00000000000..2ca05f57bb0
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/custom-elements/reactions/HTMLMediaElement.html.ini
@@ -0,0 +1,2 @@
+[HTMLMediaElement.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini b/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini
index ec1a7093176..3c7df608d4b 100644
--- a/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/fetch/content-type/response.window.js.ini
@@ -315,24 +315,21 @@
   [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/plain */*]
-    expected: FAIL
-
-  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
-    expected: FAIL
-
-  [<iframe>: combined response Content-Type: text/html;x=" 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>: separate response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
   [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
+  [<iframe>: combined response Content-Type: text/html;" text/plain]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html */*]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;x=" text/plain]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini b/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini
index 646a46c0cbb..25318ac5846 100644
--- a/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini
@@ -53,12 +53,6 @@
   [combined text/javascript ]
     expected: FAIL
 
-  [separate text/javascript x/x]
-    expected: FAIL
-
-  [separate text/javascript;charset=windows-1252 error text/javascript]
-    expected: FAIL
-
   [separate text/javascript error]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
similarity index 71%
rename from tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
rename to tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
index 385376c7321..51f8272a6de 100644
--- a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
@@ -1,4 +1,4 @@
-[traverse_the_history_4.html]
+[traverse_the_history_3.html]
   [Multiple history traversals, last would be aborted]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini
deleted file mode 100644
index 735a9a75a2a..00000000000
--- a/tests/wpt/metadata-layout-2020/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[cross-origin-objects-on-new-window.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
deleted file mode 100644
index 16fa2c5cfc1..00000000000
--- a/tests/wpt/metadata-layout-2020/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[creating_browsing_context_test_01.html]
-  [first argument: absolute url]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini b/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini
index 8e2a63e3b7f..9a85a905394 100644
--- a/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/browsers/windows/embedded-opener-remove-frame.html.ini
@@ -1,5 +1,4 @@
 [embedded-opener-remove-frame.html]
-  expected: CRASH
   [opener of discarded nested browsing context]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini b/tests/wpt/metadata-layout-2020/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
index f45aaafe1c5..b000fc2afe3 100644
--- a/tests/wpt/metadata-layout-2020/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
@@ -14,3 +14,6 @@
   [Host element with delegatesFocus should support autofocus]
     expected: FAIL
 
+  [Non-HTMLElement should not support autofocus]
+    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 88f4ddd0e9a..42ebcc9d57e 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: CRASH
+  expected: TIMEOUT
   [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 338d283eb0e..295031c1812 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,4 +1,5 @@
 [iframe_sandbox_popups_escaping-3.html]
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
-    expected: FAIL
+    expected: TIMEOUT
 
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
index d913fcbb129..3080be9afc0 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
@@ -1,5 +1,5 @@
 [iframe_sandbox_popups_nonescaping-1.html]
-  expected: TIMEOUT
+  expected: CRASH
   [Check that popups from a sandboxed iframe do not escape the sandbox]
     expected: NOTRUN
 
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
index c792a071c3b..0218bc9ba9d 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
@@ -1,5 +1,4 @@
 [iframe_sandbox_popups_nonescaping-2.html]
-  expected: CRASH
   [Check that popups from a sandboxed iframe do not escape the sandbox]
     expected: FAIL
 
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..7a36937927c 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 +1,4 @@
 [iframe_sandbox_popups_nonescaping-3.html]
-  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: NOTRUN
+    expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini
index b1aa0f1f1c4..9b788fba5f6 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini
@@ -5,9 +5,6 @@
   [Check that rel=noopener with target=_top does a normal load]
     expected: FAIL
 
-  [Check that rel=noopener with target=_parent does a normal load]
-    expected: FAIL
-
   [Check that rel=noopener with target=_self does a normal load]
     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/html/webappapis/scripting/processing-model-2/integration-with-the-javascript-job-queue/promise-job-entry.html.ini b/tests/wpt/metadata-layout-2020/html/webappapis/scripting/processing-model-2/integration-with-the-javascript-job-queue/promise-job-entry.html.ini
index a1effd5f801..5ddb9bfeff6 100644
--- a/tests/wpt/metadata-layout-2020/html/webappapis/scripting/processing-model-2/integration-with-the-javascript-job-queue/promise-job-entry.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/webappapis/scripting/processing-model-2/integration-with-the-javascript-job-queue/promise-job-entry.html.ini
@@ -1,9 +1,10 @@
 [promise-job-entry.html]
+  expected: TIMEOUT
   [Fulfillment handler on fulfilled promise]
     expected: FAIL
 
   [Rejection handler on pending-then-rejected promise]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Sanity check: this all works as expected with no promises involved]
     expected: FAIL
@@ -15,5 +16,5 @@
     expected: FAIL
 
   [Fulfillment handler on pending-then-fulfilled promise]
-    expected: FAIL
+    expected: TIMEOUT
 
diff --git a/tests/wpt/metadata-layout-2020/referrer-policy/gen/iframe.http-rp/unset/script-tag.http.html.ini b/tests/wpt/metadata-layout-2020/referrer-policy/gen/iframe.http-rp/unset/script-tag.http.html.ini
new file mode 100644
index 00000000000..8e4822446b0
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/referrer-policy/gen/iframe.http-rp/unset/script-tag.http.html.ini
@@ -0,0 +1,20 @@
+[script-tag.http.html]
+  expected: TIMEOUT
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-https origin and keep-origin redirection from http context.]
+    expected: NOTRUN
+
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-http origin and no-redirect redirection from http context.]
+    expected: NOTRUN
+
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-http origin and swap-origin redirection from http context.]
+    expected: NOTRUN
+
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-http origin and keep-origin redirection from http context.]
+    expected: TIMEOUT
+
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-https origin and swap-origin redirection from http context.]
+    expected: NOTRUN
+
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-https origin and no-redirect redirection from http context.]
+    expected: NOTRUN
+
diff --git a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html.ini b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html.ini
index b28bd566f16..1fdde19ecc9 100644
--- a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html.ini
+++ b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html.ini
@@ -1,4 +1,5 @@
 [audiocontextoptions.html]
+  expected: CRASH
   [X context = new AudioContext({sampleRate: 1}) did not throw an exception.]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-periodicwave-interface/periodicWave.html.ini b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-periodicwave-interface/periodicWave.html.ini
new file mode 100644
index 00000000000..f1af52f1bb7
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-periodicwave-interface/periodicWave.html.ini
@@ -0,0 +1,43 @@
+[periodicWave.html]
+  [< [too small with factory method\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [< [create with factory method\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [< [different length with factory method\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [X new PeriodicWave(context, { real : new Float32Array(1), imag : new Float32Array(1) }) threw "ReferenceError" instead of IndexSizeError.]
+    expected: FAIL
+
+  [X context.createPeriodicWave(new Float32Array(4096), new Float32Array(4096)) incorrectly threw TypeError: "context.createPeriodicWave is not a function".]
+    expected: FAIL
+
+  [Executing "output test"]
+    expected: FAIL
+
+  [X context.createPeriodicWave(new Float32Array(1), new Float32Array(1)) threw "TypeError" instead of IndexSizeError.]
+    expected: FAIL
+
+  [< [different length with constructor\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [X new PeriodicWave(context, { real : new Float32Array(4096), imag : new Float32Array(4096) }) incorrectly threw ReferenceError: "PeriodicWave is not defined".]
+    expected: FAIL
+
+  [X new PeriodicWave(context, { real : new Float32Array(4096), imag : new Float32Array(4) }) threw "ReferenceError" instead of IndexSizeError.]
+    expected: FAIL
+
+  [< [too small with constructor\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [X context.createPeriodicWave(new Float32Array(512), new Float32Array(4)) threw "TypeError" instead of IndexSizeError.]
+    expected: FAIL
+
+  [< [create with constructor\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [# AUDIT TASK RUNNER FINISHED: 6 out of 7 tasks were failed.]
+    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
new file mode 100644
index 00000000000..663a1f8fa30
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/webmessaging/without-ports/018.html.ini
@@ -0,0 +1,5 @@
+[018.html]
+  expected: TIMEOUT
+  [origin of the script that invoked the method, javascript:]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata-layout-2020/workers/shared-worker-in-data-url-context.window.js.ini b/tests/wpt/metadata-layout-2020/workers/shared-worker-in-data-url-context.window.js.ini
index 10dda3a6659..6d92f8835c6 100644
--- a/tests/wpt/metadata-layout-2020/workers/shared-worker-in-data-url-context.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/workers/shared-worker-in-data-url-context.window.js.ini
@@ -1,7 +1,8 @@
 [shared-worker-in-data-url-context.window.html]
+  expected: TIMEOUT
   [Create a shared worker in a data url frame]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Create a data url shared worker in a data url frame]
-    expected: FAIL
+    expected: NOTRUN
 
diff --git a/tests/wpt/metadata/FileAPI/url/url-charset.window.js.ini b/tests/wpt/metadata/FileAPI/url/url-charset.window.js.ini
new file mode 100644
index 00000000000..7248ba77bd5
--- /dev/null
+++ b/tests/wpt/metadata/FileAPI/url/url-charset.window.js.ini
@@ -0,0 +1,5 @@
+[url-charset.window.html]
+  expected: TIMEOUT
+  [Blob charset should override any auto-detected charset.]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index f74a6e4d688..3b6e458bf45 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -158858,6 +158858,58 @@
        {}
       ]
      ],
+     "overflow-body-propagation-007.html": [
+      "9ce13ed8de359a9e3d79f27f4eced40d6115cb1a",
+      [
+       null,
+       [
+        [
+         "/css/css-overflow/overflow-body-propagation-007-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "overflow-body-propagation-008.html": [
+      "867cd379c73ebdb348ef0d30285946e43ef7051f",
+      [
+       null,
+       [
+        [
+         "/css/css-overflow/overflow-body-propagation-008-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "overflow-body-propagation-009.html": [
+      "6924719f97872021cefa31f920e7619ec2208747",
+      [
+       null,
+       [
+        [
+         "/css/css-overflow/overflow-body-propagation-009-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
+     "overflow-body-propagation-010.html": [
+      "7a9966c151afff318959fef9f6c760d6bde078cd",
+      [
+       null,
+       [
+        [
+         "/css/css-overflow/overflow-body-propagation-010-ref.html",
+         "=="
+        ]
+       ],
+       {}
+      ]
+     ],
      "overflow-ellipsis-dynamic-001.html": [
       "2a9edba9308bf06009d7b9a27f21f1e0f1a231c7",
       [
@@ -305336,6 +305388,22 @@
       "9ccdbf93c615f6078b82add5362e6032e9efe583",
       []
      ],
+     "overflow-body-propagation-007-ref.html": [
+      "66f9b1c3b0098c0cc448775cde0d94b4325a94a8",
+      []
+     ],
+     "overflow-body-propagation-008-ref.html": [
+      "91e582aa00ff139338921eec47714dc58d3817cd",
+      []
+     ],
+     "overflow-body-propagation-009-ref.html": [
+      "9632674a5a8e40b98f320c078f14ef8dafa75839",
+      []
+     ],
+     "overflow-body-propagation-010-ref.html": [
+      "9e502e7e237de7ffb6dfc754450c70f5f03d297e",
+      []
+     ],
      "reference": {
       "input-scrollable-region-001-ref.html": [
        "d7125ee2ef3285d461b2172208e23d8d4cc27a64",
@@ -484510,7 +484578,7 @@
      ]
     },
     "about-blank.https.sub.html": [
-     "50a07ff0c02e45b4fb5cf5018d1b811f7944211d",
+     "6af31dd021f902f5005becf7b39332d0139da887",
      [
       null,
       {}
@@ -521583,7 +521651,7 @@
        ]
       ],
       "audiocontextoptions.html": [
-       "b556e31b5e0dcea8b0c82d859e53d980b4936a2e",
+       "0bf2cfbb7ab2f0e332c72d7859b678833d983938",
        [
         null,
         {}
@@ -522792,6 +522860,15 @@
        ]
       ]
      },
+     "the-periodicwave-interface": {
+      "periodicWave.html": [
+       "bd42453001498c990bea27424eb4164d3196aee0",
+       [
+        null,
+        {}
+       ]
+      ]
+     },
      "the-scriptprocessornode-interface": {
       "simple-input-output.html": [
        "7fd20e67a7079ab3c02d490e458cb762006e0ca0",
diff --git a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
index 6ef8bb1049f..171592fc08f 100644
--- a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
+++ b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
@@ -2,6 +2,3 @@
   [elementsFromPoint on the root document for points in iframe elements]
     expected: FAIL
 
-  [elementsFromPoint on inner documents]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/custom-elements/reactions/HTMLMediaElement.html.ini b/tests/wpt/metadata/custom-elements/reactions/HTMLMediaElement.html.ini
new file mode 100644
index 00000000000..2ca05f57bb0
--- /dev/null
+++ b/tests/wpt/metadata/custom-elements/reactions/HTMLMediaElement.html.ini
@@ -0,0 +1,2 @@
+[HTMLMediaElement.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/metadata/fetch/content-type/response.window.js.ini b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
index 2f7418daa04..3e0a59b66db 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -315,24 +315,21 @@
   [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/plain */*]
-    expected: FAIL
-
-  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
-    expected: FAIL
-
-  [<iframe>: combined response Content-Type: text/html;x=" 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>: separate response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
   [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
+  [<iframe>: combined response Content-Type: text/html;" text/plain]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html */*]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;x=" text/plain]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/content-type/script.window.js.ini b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
index 646a46c0cbb..25318ac5846 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -53,12 +53,6 @@
   [combined text/javascript ]
     expected: FAIL
 
-  [separate text/javascript x/x]
-    expected: FAIL
-
-  [separate text/javascript;charset=windows-1252 error text/javascript]
-    expected: FAIL
-
   [separate text/javascript error]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
similarity index 71%
rename from tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
rename to tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
index dc2e45516de..51f8272a6de 100644
--- a/tests/wpt/metadata-layout-2020/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
+++ b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
@@ -1,4 +1,4 @@
-[traverse_the_history_5.html]
+[traverse_the_history_3.html]
   [Multiple history traversals, last would be aborted]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
deleted file mode 100644
index 385376c7321..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_4.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
deleted file mode 100644
index dc2e45516de..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_5.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini b/tests/wpt/metadata/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini
deleted file mode 100644
index 735a9a75a2a..00000000000
--- a/tests/wpt/metadata/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[cross-origin-objects-on-new-window.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
deleted file mode 100644
index 16fa2c5cfc1..00000000000
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[creating_browsing_context_test_01.html]
-  [first argument: absolute url]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini b/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
index 2532dceabac..442db3cb549 100644
--- a/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
+++ b/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
@@ -1,5 +1,4 @@
 [embedded-opener-remove-frame.html]
-  expected: CRASH
   [opener and "removed" embedded documents]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini b/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
index 6b68e9094e4..3363dff158f 100644
--- a/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
+++ b/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
@@ -14,3 +14,6 @@
   [Host element with delegatesFocus should support autofocus]
     expected: FAIL
 
+  [Non-HTMLElement should not support autofocus]
+    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 2a166bb97b7..fc37df7e3fa 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: CRASH
+  expected: TIMEOUT
   [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 f6a7aca3306..5f60c78e73c 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,5 +1,6 @@
 [iframe_sandbox_popups_escaping-3.html]
   type: testharness
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
-    expected: FAIL
+    expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
index 9df1ac56f2a..963d4cd20ef 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
@@ -1,6 +1,6 @@
 [iframe_sandbox_popups_nonescaping-1.html]
   type: testharness
-  expected: TIMEOUT
+  expected: CRASH
   [Check that popups from a sandboxed iframe do not escape the sandbox]
     expected: NOTRUN
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
index 06bbed1fcac..3a32693ffa8 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
@@ -1,6 +1,5 @@
 [iframe_sandbox_popups_nonescaping-2.html]
   type: testharness
-  expected: CRASH
   [Check that popups from a sandboxed iframe do not escape the sandbox]
     expected: FAIL
 
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 e440b1e38c6..dc856a3d5a3 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
@@ -1,6 +1,5 @@
 [iframe_sandbox_popups_nonescaping-3.html]
   type: testharness
-  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: NOTRUN
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini b/tests/wpt/metadata/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini
index a057142bbc5..119feb494fc 100644
--- a/tests/wpt/metadata/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini
+++ b/tests/wpt/metadata/html/semantics/links/links-created-by-a-and-area-elements/htmlanchorelement_noopener.html.ini
@@ -9,9 +9,6 @@
   [Check that rel=noopener with target=_top does a normal load]
     expected: FAIL
 
-  [Check that rel=noopener with target=_parent does a normal load]
-    expected: FAIL
-
   [Check that rel=noopener with target=_self does a normal load]
     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/html/webappapis/scripting/processing-model-2/integration-with-the-javascript-job-queue/promise-job-entry.html.ini b/tests/wpt/metadata/html/webappapis/scripting/processing-model-2/integration-with-the-javascript-job-queue/promise-job-entry.html.ini
index a1effd5f801..5ddb9bfeff6 100644
--- a/tests/wpt/metadata/html/webappapis/scripting/processing-model-2/integration-with-the-javascript-job-queue/promise-job-entry.html.ini
+++ b/tests/wpt/metadata/html/webappapis/scripting/processing-model-2/integration-with-the-javascript-job-queue/promise-job-entry.html.ini
@@ -1,9 +1,10 @@
 [promise-job-entry.html]
+  expected: TIMEOUT
   [Fulfillment handler on fulfilled promise]
     expected: FAIL
 
   [Rejection handler on pending-then-rejected promise]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Sanity check: this all works as expected with no promises involved]
     expected: FAIL
@@ -15,5 +16,5 @@
     expected: FAIL
 
   [Fulfillment handler on pending-then-fulfilled promise]
-    expected: FAIL
+    expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/referrer-policy/gen/iframe.http-rp/unset/script-tag.http.html.ini b/tests/wpt/metadata/referrer-policy/gen/iframe.http-rp/unset/script-tag.http.html.ini
new file mode 100644
index 00000000000..8e4822446b0
--- /dev/null
+++ b/tests/wpt/metadata/referrer-policy/gen/iframe.http-rp/unset/script-tag.http.html.ini
@@ -0,0 +1,20 @@
+[script-tag.http.html]
+  expected: TIMEOUT
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-https origin and keep-origin redirection from http context.]
+    expected: NOTRUN
+
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-http origin and no-redirect redirection from http context.]
+    expected: NOTRUN
+
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-http origin and swap-origin redirection from http context.]
+    expected: NOTRUN
+
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-http origin and keep-origin redirection from http context.]
+    expected: TIMEOUT
+
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-https origin and swap-origin redirection from http context.]
+    expected: NOTRUN
+
+  [Referrer Policy: Expects stripped-referrer for script-tag to same-https origin and no-redirect redirection from http context.]
+    expected: NOTRUN
+
diff --git a/tests/wpt/metadata/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html.ini
index b28bd566f16..1fdde19ecc9 100644
--- a/tests/wpt/metadata/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html.ini
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html.ini
@@ -1,4 +1,5 @@
 [audiocontextoptions.html]
+  expected: CRASH
   [X context = new AudioContext({sampleRate: 1}) did not throw an exception.]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/webaudio/the-audio-api/the-periodicwave-interface/periodicWave.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-periodicwave-interface/periodicWave.html.ini
new file mode 100644
index 00000000000..f1af52f1bb7
--- /dev/null
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-periodicwave-interface/periodicWave.html.ini
@@ -0,0 +1,43 @@
+[periodicWave.html]
+  [< [too small with factory method\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [< [create with factory method\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [< [different length with factory method\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [X new PeriodicWave(context, { real : new Float32Array(1), imag : new Float32Array(1) }) threw "ReferenceError" instead of IndexSizeError.]
+    expected: FAIL
+
+  [X context.createPeriodicWave(new Float32Array(4096), new Float32Array(4096)) incorrectly threw TypeError: "context.createPeriodicWave is not a function".]
+    expected: FAIL
+
+  [Executing "output test"]
+    expected: FAIL
+
+  [X context.createPeriodicWave(new Float32Array(1), new Float32Array(1)) threw "TypeError" instead of IndexSizeError.]
+    expected: FAIL
+
+  [< [different length with constructor\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [X new PeriodicWave(context, { real : new Float32Array(4096), imag : new Float32Array(4096) }) incorrectly threw ReferenceError: "PeriodicWave is not defined".]
+    expected: FAIL
+
+  [X new PeriodicWave(context, { real : new Float32Array(4096), imag : new Float32Array(4) }) threw "ReferenceError" instead of IndexSizeError.]
+    expected: FAIL
+
+  [< [too small with constructor\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [X context.createPeriodicWave(new Float32Array(512), new Float32Array(4)) threw "TypeError" instead of IndexSizeError.]
+    expected: FAIL
+
+  [< [create with constructor\] 1 out of 1 assertions were failed.]
+    expected: FAIL
+
+  [# AUDIT TASK RUNNER FINISHED: 6 out of 7 tasks were failed.]
+    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
new file mode 100644
index 00000000000..663a1f8fa30
--- /dev/null
+++ b/tests/wpt/metadata/webmessaging/without-ports/018.html.ini
@@ -0,0 +1,5 @@
+[018.html]
+  expected: TIMEOUT
+  [origin of the script that invoked the method, javascript:]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/workers/shared-worker-in-data-url-context.window.js.ini b/tests/wpt/metadata/workers/shared-worker-in-data-url-context.window.js.ini
index 10dda3a6659..6d92f8835c6 100644
--- a/tests/wpt/metadata/workers/shared-worker-in-data-url-context.window.js.ini
+++ b/tests/wpt/metadata/workers/shared-worker-in-data-url-context.window.js.ini
@@ -1,7 +1,8 @@
 [shared-worker-in-data-url-context.window.html]
+  expected: TIMEOUT
   [Create a shared worker in a data url frame]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Create a data url shared worker in a data url frame]
-    expected: FAIL
+    expected: NOTRUN
 
diff --git a/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-007-ref.html b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-007-ref.html
new file mode 100644
index 00000000000..66f9b1c3b00
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-007-ref.html
@@ -0,0 +1,29 @@
+<!doctype html>
+<html><head>
+<meta charset="utf-8">
+<title>CSS Reference: overflow-x:clip propagated from BODY</title>
+<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1635473">
+<style>
+  html { overflow: hidden auto; }
+  body {
+    width: 30px;
+    height: 30px;
+    padding: 10px;
+    margin-left: 100px;
+    margin-top: 100px;
+  }
+
+  div {
+    position: relative;
+    top: -20px;
+    left: -40px;
+    background: blue;
+    height: 10000px;
+    width: 10000px;
+    border-right-width: 20px;
+    border-right-style: solid;
+    border-right-color: red;
+  }
+</style></head>
+<body><div></div></body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-007.html b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-007.html
new file mode 100644
index 00000000000..9ce13ed8de3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-007.html
@@ -0,0 +1,32 @@
+<!doctype html>
+<html><head>
+<meta charset="utf-8">
+<title>CSS Test: overflow-x:clip propagated from BODY</title>
+<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1635473">
+<link rel="help" href="https://drafts.csswg.org/css-overflow/#overflow-propagation">
+<link rel="match" href="overflow-body-propagation-007-ref.html">
+<style>
+  body {
+    overflow-x: -moz-hidden-unscrollable; /* will be removed in bug 1531609 */
+    overflow-x: clip;
+    width: 30px;
+    height: 30px;
+    padding: 10px;
+    margin-left: 100px;
+    margin-top: 100px;
+  }
+
+  div {
+    position: relative;
+    top: -20px;
+    left: -40px;
+    background: blue;
+    height: 10000px;
+    width: 10000px;
+    border-right-width: 20px;
+    border-right-style: solid;
+    border-right-color: red;
+  }
+</style></head>
+<body><div></div></body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-008-ref.html b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-008-ref.html
new file mode 100644
index 00000000000..91e582aa00f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-008-ref.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<html><head>
+<meta charset="utf-8">
+<title>CSS Reference: overflow-y:clip propagated from BODY</title>
+<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1635473">
+<style>
+  html { overflow: auto hidden; }
+  body {
+    width: 30px;
+    height: 30px;
+    padding: 10px;
+    margin-left: 100px;
+    margin-top: 100px;
+  }
+
+  div {
+    position: relative;
+    top: -20px;
+    left: -40px;
+    background: blue;
+    height: 10000px;
+    width: 10000px;
+  }
+</style></head>
+<body><div></div></body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-008.html b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-008.html
new file mode 100644
index 00000000000..867cd379c73
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-008.html
@@ -0,0 +1,32 @@
+<!doctype html>
+<html><head>
+<meta charset="utf-8">
+<title>CSS Test: overflow-y:clip propagated from BODY</title>
+<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1635473">
+<link rel="help" href="https://drafts.csswg.org/css-overflow/#overflow-propagation">
+<link rel="match" href="overflow-body-propagation-008-ref.html">
+<style>
+  body {
+    overflow-y: -moz-hidden-unscrollable; /* will be removed in bug 1531609 */
+    overflow-y: clip;
+    width: 30px;
+    height: 30px;
+    padding: 10px;
+    margin-left: 100px;
+    margin-top: 100px;
+  }
+
+  div {
+    position: relative;
+    top: -20px;
+    left: -40px;
+    background: blue;
+    height: 10000px;
+    width: 10000px;
+    border-right-width: 20px;
+    border-right-style: solid;
+    border-right-color: red;
+  }
+</style></head>
+<body><div></div></body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-009-ref.html b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-009-ref.html
new file mode 100644
index 00000000000..9632674a5a8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-009-ref.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<html><head>
+<meta charset="utf-8">
+<title>CSS Reference: overflow:clip propagated from BODY</title>
+<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1635473">
+<style>
+  html { overflow: hidden; }
+  body {
+    width: 30px;
+    height: 30px;
+    padding: 10px;
+    margin-left: 100px;
+    margin-top: 100px;
+  }
+
+  div {
+    position: relative;
+    top: -20px;
+    left: -40px;
+    background: blue;
+    height: 10000px;
+    width: 10000px;
+  }
+</style></head>
+<body><div></div></body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-009.html b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-009.html
new file mode 100644
index 00000000000..6924719f978
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-009.html
@@ -0,0 +1,32 @@
+<!doctype html>
+<html><head>
+<meta charset="utf-8">
+<title>CSS Test: overflow:clip propagated from BODY</title>
+<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1635473">
+<link rel="help" href="https://drafts.csswg.org/css-overflow/#overflow-propagation">
+<link rel="match" href="overflow-body-propagation-009-ref.html">
+<style>
+  body {
+    overflow: -moz-hidden-unscrollable; /* will be removed in bug 1531609 */
+    overflow: clip;
+    width: 30px;
+    height: 30px;
+    padding: 10px;
+    margin-left: 100px;
+    margin-top: 100px;
+  }
+
+  div {
+    position: relative;
+    top: -20px;
+    left: -40px;
+    background: blue;
+    height: 10000px;
+    width: 10000px;
+    border-right-width: 20px;
+    border-right-style: solid;
+    border-right-color: red;
+  }
+</style></head>
+<body><div></div></body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-010-ref.html b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-010-ref.html
new file mode 100644
index 00000000000..9e502e7e237
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-010-ref.html
@@ -0,0 +1,19 @@
+<!doctype html>
+<html><head>
+<meta charset="utf-8">
+<title>CSS Reference: contain:paint on BODY with overflow:clip</title>
+<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1635473">
+<style>
+  body {
+    margin-left: 100px;
+    margin-top: 100px;
+  }
+
+  div {
+    width: 50px;
+    height: 50px;
+    background: blue;
+  }
+</style></head>
+<body><div></div></body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-010.html b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-010.html
new file mode 100644
index 00000000000..7a9966c151a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-overflow/overflow-body-propagation-010.html
@@ -0,0 +1,33 @@
+<!doctype html>
+<html><head>
+<meta charset="utf-8">
+<title>CSS Test: contain:paint on BODY with overflow:clip</title>
+<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1635473">
+<link rel="help" href="https://drafts.csswg.org/css-overflow/#overflow-propagation">
+<link rel="match" href="overflow-body-propagation-010-ref.html">
+<style>
+  body {
+    overflow: -moz-hidden-unscrollable; /* will be removed in bug 1531609 */
+    overflow: clip;
+    contain: paint;
+    width: 30px;
+    height: 30px;
+    padding: 10px;
+    margin-left: 100px;
+    margin-top: 100px;
+  }
+
+  div {
+    position: relative;
+    top: -20px;
+    left: -40px;
+    background: blue;
+    height: 10000px;
+    width: 10000px;
+    border-right-width: 20px;
+    border-right-style: solid;
+    border-right-color: red;
+  }
+</style></head>
+<body><div></div></body>
+</html>
diff --git a/tests/wpt/web-platform-tests/origin-isolation/about-blank.https.sub.html b/tests/wpt/web-platform-tests/origin-isolation/about-blank.https.sub.html
index 50a07ff0c02..6af31dd021f 100644
--- a/tests/wpt/web-platform-tests/origin-isolation/about-blank.https.sub.html
+++ b/tests/wpt/web-platform-tests/origin-isolation/about-blank.https.sub.html
@@ -34,23 +34,20 @@ async function insertAboutBlankIframe() {
   const iframe = document.createElement("iframe");
   document.body.append(iframe);
 
-  // Now use document.write() to get the child frame script in there, without
-  // actually navigating anywhere.
+  // Now create and add the script, but don't navigate anywhere (since we want
+  // to stay on the initial about:blank).
   // We need to absolutize the URL to since about:blank doesn't have a base URL.
   const scriptURL = (new URL("./resources/child-frame-script.mjs", import.meta.url)).href;
-  iframe.contentDocument.write(`<script type="module" src="${scriptURL}"></scr` + `ipt>`);
-  iframe.contentDocument.close();
+  const script = iframe.contentDocument.createElement("script");
+  script.type = "module";
+  script.src = scriptURL;
 
   await new Promise((resolve, reject) => {
-    // Note that since this code runs during the same event loop turn as the
-    // contentDocument.write() above, we know that the load/error events will
-    // not have been fired at this time. (The spec guarantees they are fired
-    // from queued tasks.)
-    const script = iframe.contentDocument.querySelector("script");
     script.onload = resolve;
     script.onerror = () => reject(
       new Error("Could not load the child frame script into the about:blank page")
     );
+    iframe.contentDocument.body.append(script);
   });
 
   await setBothDocumentDomains(iframe.contentWindow);
diff --git a/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html b/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html
index b556e31b5e0..0bf2cfbb7ab 100644
--- a/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html
+++ b/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-audiocontext-interface/audiocontextoptions.html
@@ -180,6 +180,20 @@
                 },
                 'context = new AudioContext({sampleRate: 1000000})')
                 .throw(DOMException);
+            // A negative sample rate should not be accepted
+            should(
+                () => {
+                  context = new AudioContext({sampleRate: -1})
+                },
+                'context = new AudioContext({sampleRate: -1})')
+                .throw(DOMException);
+            // A null sample rate should not be accepted
+            should(
+                () => {
+                  context = new AudioContext({sampleRate: 0})
+                },
+                'context = new AudioContext({sampleRate: 0})')
+                .throw(DOMException);
 
             should(
                 () => {
diff --git a/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-periodicwave-interface/periodicWave.html b/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-periodicwave-interface/periodicWave.html
new file mode 100644
index 00000000000..bd424530014
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webaudio/the-audio-api/the-periodicwave-interface/periodicWave.html
@@ -0,0 +1,130 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>
+      Test Constructor: MediaStreamAudioDestinationNode
+    </title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="/webaudio/resources/audit-util.js"></script>
+    <script src="/webaudio/resources/audit.js"></script>
+  </head>
+  <body>
+    <script id="layout-test-code">
+      // real and imag are used in separate PeriodicWaves to make their peak values
+      // easy to determine.
+      const realMax = 99;
+      var real = new Float32Array(realMax + 1);
+      real[1] = 2.0; // fundamental
+      real[realMax] = 3.0;
+      const realPeak = real[1] + real[realMax];
+      const realFundamental = 19.0;
+      var imag = new Float32Array(4);
+      imag[0] = 6.0; // should be ignored.
+      imag[3] = 0.5;
+      const imagPeak = imag[3];
+      const imagFundamental = 551.0;
+
+      const testLength = 4096;
+      let context = new AudioContext();
+
+      let audit = Audit.createTaskRunner();
+
+      // Create with the factory method
+
+      audit.define('create with factory method', (task, should) => {
+        should(() => {
+          context.createPeriodicWave(new Float32Array(4096), new Float32Array(4096));
+        }, 'context.createPeriodicWave(new Float32Array(4096), ' +
+        'new Float32Array(4096))').notThrow();
+        task.done();
+      });
+
+      audit.define('different length with factory method', (task, should) => {
+        should(() => {
+          context.createPeriodicWave(new Float32Array(512), new Float32Array(4));
+        }, 'context.createPeriodicWave(new Float32Array(512), ' +
+        'new Float32Array(4))').throw(DOMException, "IndexSizeError");
+        task.done();
+      });
+
+      audit.define('too small with factory method', (task, should) => {
+        should(() => {
+          context.createPeriodicWave(new Float32Array(1), new Float32Array(1));
+        }, 'context.createPeriodicWave(new Float32Array(1), ' +
+        'new Float32Array(1))').throw(DOMException, "IndexSizeError");
+        task.done();
+      });
+
+      // Create with the constructor
+
+      audit.define('create with constructor', (task, should) => {
+        should(() => {
+          new PeriodicWave(context, { real: new Float32Array(4096), imag: new Float32Array(4096) });
+        }, 'new PeriodicWave(context, { real : new Float32Array(4096), ' +
+        'imag : new Float32Array(4096) })').notThrow();
+        task.done();
+      });
+
+      audit.define('different length with constructor', (task, should) => {
+        should(() => {
+          new PeriodicWave(context, { real: new Float32Array(4096), imag: new Float32Array(4) });
+        }, 'new PeriodicWave(context, { real : new Float32Array(4096), ' +
+        'imag : new Float32Array(4) })').throw(DOMException, "IndexSizeError");
+        task.done();
+      });
+
+      audit.define('too small with constructor', (task, should) => {
+        should(() => {
+          new PeriodicWave(context, { real: new Float32Array(1), imag: new Float32Array(1) });
+        }, 'new PeriodicWave(context, { real : new Float32Array(1), ' +
+        'imag : new Float32Array(1) })').throw(DOMException, "IndexSizeError");
+        task.done();
+      });
+
+      audit.define('output test', (task, should) => {
+        let context = new OfflineAudioContext(2, 4096, 44100);
+        // Create the expected output buffer
+        let expectations = context.createBuffer(2, testLength, context.sampleRate);
+        for (var i = 0; i < expectations.length; ++i) {
+
+          expectations.getChannelData(0)[i] = 1.0 / realPeak *
+            (real[1] * Math.cos(2 * Math.PI * realFundamental * i /
+                                context.sampleRate) +
+             real[realMax] * Math.cos(2 * Math.PI * realMax * realFundamental * i /
+                                context.sampleRate));
+
+          expectations.getChannelData(1)[i] = 1.0 / imagPeak *
+             imag[3] * Math.sin(2 * Math.PI * 3 * imagFundamental * i /
+                                context.sampleRate);
+        }
+
+        // Create the real output buffer
+        let merger = context.createChannelMerger();
+
+        let osc1 = context.createOscillator();
+        let osc2 = context.createOscillator();
+
+        osc1.setPeriodicWave(context.createPeriodicWave(
+                                real, new Float32Array(real.length)));
+        osc2.setPeriodicWave(context.createPeriodicWave(
+                                new Float32Array(imag.length), imag));
+        osc1.frequency.value = realFundamental;
+        osc2.frequency.value = imagFundamental;
+
+        osc1.start();
+        osc2.start();
+
+        osc1.connect(merger, 0, 0);
+        osc2.connect(merger, 0, 1);
+
+        context.startRendering().then(reality => {
+          should(reality, 'rendering PeriodicWave').beEqualToArray(expectations);
+          task.done();
+        });
+      });
+
+      audit.run();
+    </script>
+  </body>
+</html>