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-003.html.ini b/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-003.html.ini
deleted file mode 100644
index f29da48a2a0..00000000000
--- a/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-003.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-003.html]
-  [Miss float below something else]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-004.html.ini b/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-004.html.ini
deleted file mode 100644
index 4bfb0c2053a..00000000000
--- a/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-004.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-004.html]
-  [Miss float below something else]
-    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
new file mode 100644
index 00000000000..baa9f1a7541
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/CSS2/floats/hit-test-floats-005.html.ini
@@ -0,0 +1,4 @@
+[hit-test-floats-005.html]
+  [Miss clipped float]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini b/tests/wpt/metadata-layout-2020/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini
new file mode 100644
index 00000000000..8efb7024ae4
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini
@@ -0,0 +1,4 @@
+[hit-test-anonymous-block.html]
+  [Hit test beside line of text inside anonymous block]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/css-text/white-space/full-width-leading-spaces-004.html.ini b/tests/wpt/metadata-layout-2020/css/css-text/white-space/full-width-leading-spaces-004.html.ini
new file mode 100644
index 00000000000..de1424d9ba6
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-text/white-space/full-width-leading-spaces-004.html.ini
@@ -0,0 +1,2 @@
+[full-width-leading-spaces-004.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-001.html.ini b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-001.tentative.html.ini
similarity index 82%
rename from tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-001.html.ini
rename to tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-001.tentative.html.ini
index 6971af7257d..c5c108bf204 100644
--- a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-001.html.ini
+++ b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-001.tentative.html.ini
@@ -1,20 +1,19 @@
-[seg-break-transformation-001.html]
-  type: testharness
+[seg-break-transformation-001.tentative.html]
   [linebreak only]
     expected: FAIL
 
-  [spaces linebreak]
-    expected: FAIL
-
-  [linebreak spaces]
-    expected: FAIL
-
   [spaces linebreak spaces]
     expected: FAIL
 
   [multiple linebreaks]
     expected: FAIL
 
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
   [multiple linebreaks + spaces]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-002.html.ini b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-002.tentative.html.ini
similarity index 82%
rename from tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-002.html.ini
rename to tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-002.tentative.html.ini
index e11a5e42000..675ff4f386e 100644
--- a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-002.html.ini
+++ b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-002.tentative.html.ini
@@ -1,20 +1,19 @@
-[seg-break-transformation-002.html]
-  type: testharness
+[seg-break-transformation-002.tentative.html]
   [linebreak only]
     expected: FAIL
 
-  [spaces linebreak]
-    expected: FAIL
-
-  [linebreak spaces]
-    expected: FAIL
-
   [spaces linebreak spaces]
     expected: FAIL
 
   [multiple linebreaks]
     expected: FAIL
 
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
   [multiple linebreaks + spaces]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-003.html.ini b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-003.tentative.html.ini
similarity index 82%
rename from tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-003.html.ini
rename to tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-003.tentative.html.ini
index 11fba4c9d3b..71316b6e711 100644
--- a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-003.html.ini
+++ b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-003.tentative.html.ini
@@ -1,20 +1,19 @@
-[seg-break-transformation-003.html]
-  type: testharness
+[seg-break-transformation-003.tentative.html]
   [linebreak only]
     expected: FAIL
 
-  [spaces linebreak]
-    expected: FAIL
-
-  [linebreak spaces]
-    expected: FAIL
-
   [spaces linebreak spaces]
     expected: FAIL
 
   [multiple linebreaks]
     expected: FAIL
 
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
   [multiple linebreaks + spaces]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-004.html.ini b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini
similarity index 84%
rename from tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-004.html.ini
rename to tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini
index d907a616824..3d66d0b5240 100644
--- a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-004.html.ini
+++ b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini
@@ -1,21 +1,8 @@
-[seg-break-transformation-004.html]
-  type: testharness
-  [linebreak only ₩２４]
-    expected: FAIL
-
-  [spaces linebreak ₩２４]
-    expected: FAIL
-
-  [linebreak spaces ₩２４]
-    expected: FAIL
-
+[seg-break-transformation-004.tentative.html]
   [spaces linebreak spaces ₩２４]
     expected: FAIL
 
-  [multiple linebreaks ₩２４]
-    expected: FAIL
-
-  [multiple linebreaks + spaces ₩２４]
+  [spaces linebreak ₩２４]
     expected: FAIL
 
   [linebreak only ２４₩]
@@ -24,18 +11,27 @@
   [spaces linebreak ２４₩]
     expected: FAIL
 
-  [linebreak spaces ２４₩]
-    expected: FAIL
-
   [spaces linebreak spaces ２４₩]
     expected: FAIL
 
-  [multiple linebreaks ２４₩]
+  [linebreak only ₩２４]
+    expected: FAIL
+
+  [multiple linebreaks ₩２４]
+    expected: FAIL
+
+  [linebreak spaces ₩２４]
     expected: FAIL
 
   [multiple linebreaks + spaces ２４₩]
     expected: FAIL
 
-  [multiple linebreaks + spaces ２４��]
+  [linebreak spaces ２４₩]
+    expected: FAIL
+
+  [multiple linebreaks + spaces ₩２４]
+    expected: FAIL
+
+  [multiple linebreaks ２４₩]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-008.html.ini b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-008.tentative.html.ini
similarity index 82%
rename from tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-008.html.ini
rename to tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-008.tentative.html.ini
index e4c439cd73e..202edfd93ea 100644
--- a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-008.html.ini
+++ b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-008.tentative.html.ini
@@ -1,20 +1,19 @@
-[seg-break-transformation-008.html]
-  type: testharness
+[seg-break-transformation-008.tentative.html]
   [linebreak only]
     expected: FAIL
 
-  [spaces linebreak]
-    expected: FAIL
-
-  [linebreak spaces]
-    expected: FAIL
-
   [spaces linebreak spaces]
     expected: FAIL
 
   [multiple linebreaks]
     expected: FAIL
 
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
   [multiple linebreaks + spaces]
     expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-009.tentative.html.ini b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-009.tentative.html.ini
new file mode 100644
index 00000000000..78891de80d8
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-009.tentative.html.ini
@@ -0,0 +1,19 @@
+[seg-break-transformation-009.tentative.html]
+  [linebreak only]
+    expected: FAIL
+
+  [spaces linebreak spaces]
+    expected: FAIL
+
+  [multiple linebreaks]
+    expected: FAIL
+
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
+  [multiple linebreaks + spaces]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-016.tentative.html.ini b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-016.tentative.html.ini
new file mode 100644
index 00000000000..bdeb155f422
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-016.tentative.html.ini
@@ -0,0 +1,19 @@
+[seg-break-transformation-016.tentative.html]
+  [linebreak only]
+    expected: FAIL
+
+  [spaces linebreak spaces]
+    expected: FAIL
+
+  [multiple linebreaks]
+    expected: FAIL
+
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
+  [multiple linebreaks + spaces]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-017.tentative.html.ini b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-017.tentative.html.ini
new file mode 100644
index 00000000000..6a104b7c781
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-017.tentative.html.ini
@@ -0,0 +1,19 @@
+[seg-break-transformation-017.tentative.html]
+  [linebreak only]
+    expected: FAIL
+
+  [spaces linebreak spaces]
+    expected: FAIL
+
+  [multiple linebreaks]
+    expected: FAIL
+
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
+  [multiple linebreaks + spaces]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-018.tentative.html.ini b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-018.tentative.html.ini
new file mode 100644
index 00000000000..d2dade8bef3
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-018.tentative.html.ini
@@ -0,0 +1,2 @@
+[seg-break-transformation-018.tentative.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-019.tentative.html.ini b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-019.tentative.html.ini
new file mode 100644
index 00000000000..03cf9febb53
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/css-text/white-space/seg-break-transformation-019.tentative.html.ini
@@ -0,0 +1,2 @@
+[seg-break-transformation-019.tentative.html]
+  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 f8e7e539aae..4a1e8110f6f 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
@@ -2,6 +2,3 @@
   [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/elementFromPoint-001.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/elementFromPoint-001.html.ini
deleted file mode 100644
index e38782d8c85..00000000000
--- a/tests/wpt/metadata-layout-2020/css/cssom-view/elementFromPoint-001.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[elementFromPoint-001.html]
-  [CSSOM View - 5 - extensions to the Document interface]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
index 171592fc08f..6ef8bb1049f 100644
--- a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
+++ b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-iframes.html.ini
@@ -2,3 +2,6 @@
   [elementsFromPoint on the root document for points in iframe elements]
     expected: FAIL
 
+  [elementsFromPoint on inner documents]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-invalid-cases.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
deleted file mode 100644
index e181af5397f..00000000000
--- a/tests/wpt/metadata-layout-2020/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[elementsFromPoint-invalid-cases.html]
-  [The root element is the last element returned for otherwise empty queries within the viewport]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/css/cssom-view/matchMedia-display-none-iframe.html.ini b/tests/wpt/metadata-layout-2020/css/cssom-view/matchMedia-display-none-iframe.html.ini
new file mode 100644
index 00000000000..e6e1f29e274
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/css/cssom-view/matchMedia-display-none-iframe.html.ini
@@ -0,0 +1,2 @@
+[matchMedia-display-none-iframe.html]
+  expected: ERROR
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 d776797d105..ca517f6f61e 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
@@ -312,24 +312,18 @@
   [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html */*]
-    expected: FAIL
-
   [<iframe>: separate response Content-Type: text/html;x=" text/plain]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
-    expected: FAIL
-
   [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
   [<iframe>: combined response Content-Type: */* text/html]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;charset=gbk text/plain text/html]
+  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;" text/plain]
+  [<iframe>: combined 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 b2ffc8abf78..d2df9b78483 100644
--- a/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/fetch/content-type/script.window.js.ini
@@ -56,6 +56,3 @@
   [separate text/javascript x/x]
     expected: FAIL
 
-  [separate text/javascript error]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini
index 58de838d890..7277f622b20 100644
--- a/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata-layout-2020/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,6 +11,6 @@
   [X-Content-Type-Options%3A%20nosniff%2C%2C%40%23%24%23%25%25%26%5E%26%5E*()()11!]
     expected: FAIL
 
-  [X-Content-Type-Options%3A%20%22nosniFF%22]
+  [X-Content-Type-Options%3A%20%2Cnosniff]
     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
index dec4c579137..16fa2c5cfc1 100644
--- 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
@@ -1,5 +1,4 @@
 [creating_browsing_context_test_01.html]
-  expected: TIMEOUT
   [first argument: absolute url]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata-layout-2020/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini b/tests/wpt/metadata-layout-2020/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini
index 6852d7663de..c12c0f8ae48 100644
--- a/tests/wpt/metadata-layout-2020/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini
@@ -1,8 +1,4 @@
 [skip-document-with-fragment.html]
-  expected: TIMEOUT
   [Autofocus elements in iframed documents with URL fragments should be skipped.]
     expected: FAIL
 
-  [Autofocus elements in top-level browsing context's documents with URI fragments should be skipped.]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini
index e63fe7c263e..c6f45be1eb2 100644
--- a/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini
+++ b/tests/wpt/metadata-layout-2020/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini
@@ -1,5 +1,5 @@
 [iframe_sandbox_popups_escaping-2.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 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 1b74d6e073d..0c89d5253df 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
@@ -1,4 +1,5 @@
 [iframe_sandbox_popups_nonescaping-1.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/forms/form-submission-0/form-double-submit.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit.html.ini
deleted file mode 100644
index b193c33c2b6..00000000000
--- a/tests/wpt/metadata-layout-2020/html/semantics/forms/form-submission-0/form-double-submit.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[form-double-submit.html]
-  [default submit action should supersede onclick submit()]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini b/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
new file mode 100644
index 00000000000..178680e5d14
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
@@ -0,0 +1,2 @@
+[script-onerror-insertion-point-2.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/module-static-import-delayed.html.ini b/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/module-static-import-delayed.html.ini
new file mode 100644
index 00000000000..fca4d908c89
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/html/webappapis/dynamic-markup-insertion/document-write/module-static-import-delayed.html.ini
@@ -0,0 +1,4 @@
+[module-static-import-delayed.html]
+  [document.write in an imported module]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/selection/textcontrols/selectionchange.tentative.html.ini b/tests/wpt/metadata-layout-2020/selection/textcontrols/selectionchange.tentative.html.ini
new file mode 100644
index 00000000000..c87f1b4d2a2
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/selection/textcontrols/selectionchange.tentative.html.ini
@@ -0,0 +1,2 @@
+[selectionchange.tentative.html]
+  expected: ERROR
diff --git a/tests/wpt/metadata-layout-2020/uievents/interface/click-event.htm.ini b/tests/wpt/metadata-layout-2020/uievents/interface/click-event.htm.ini
new file mode 100644
index 00000000000..146f6e339f5
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/uievents/interface/click-event.htm.ini
@@ -0,0 +1,4 @@
+[click-event.htm]
+  [synthetic click event is a PointerEvent]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
index afb8ad280f1..22bd6cbbe1a 100644
--- a/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
+++ b/tests/wpt/metadata-layout-2020/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
@@ -296,3 +296,9 @@
   [X SNR (-288.33093763692256 dB) is not greater than or equal to 65.737. Got -288.33093763692256.]
     expected: FAIL
 
+  [X Stitched sine-wave buffers at sample rate 43800 does not equal [0,0.06264832615852356,0.12505052983760834,0.18696144223213196,0.24813786149024963,0.308339387178421,0.36732959747314453,0.4248766601085663,0.480754554271698,0.5347436666488647,0.5866320133209229,0.6362156271934509,0.6832997798919678,0.7276994585990906,0.7692402601242065,0.8077589869499207...\] with an element-wise tolerance of {"absoluteThreshold":0.0038986,"relativeThreshold":0}.\n\tIndex\tActual\t\t\tExpected\t\tAbsError\t\tRelError\t\tTest threshold\n\t[28696\]\t1.3765744018554688e+2\t9.3139332532882690e-1\t1.3672604686021805e+2\t1.4679732304496292e+2\t3.8985999999999999e-3\n\t[28697\]\t7.0477002859115601e-1\t9.0675884485244751e-1\t2.0198881626129150e-1\t2.2275913536212616e-1\t3.8985999999999999e-3\n\tMax AbsError of 1.3672604686021805e+2 at index of 28696.\n\tMax RelError of 1.4679732304496292e+2 at index of 28696.\n]
+    expected: FAIL
+
+  [X SNR (0.7170499654840768 dB) is not greater than or equal to 65.737. Got 0.7170499654840768.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata-layout-2020/webdriver/tests/get_current_url/iframe.py.ini b/tests/wpt/metadata-layout-2020/webdriver/tests/get_current_url/iframe.py.ini
new file mode 100644
index 00000000000..01329cbd8bb
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/webdriver/tests/get_current_url/iframe.py.ini
@@ -0,0 +1,13 @@
+[iframe.py]
+  [test_origin[same_origin\]]
+    expected: ERROR
+
+  [test_origin[cross_origin\]]
+    expected: ERROR
+
+  [test_iframe]
+    expected: ERROR
+
+  [test_nested_iframe]
+    expected: ERROR
+
diff --git a/tests/wpt/metadata-layout-2020/webmessaging/with-ports/017.html.ini b/tests/wpt/metadata-layout-2020/webmessaging/with-ports/017.html.ini
deleted file mode 100644
index 064cf47545b..00000000000
--- a/tests/wpt/metadata-layout-2020/webmessaging/with-ports/017.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[017.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, about:blank]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata-layout-2020/webmessaging/with-ports/018.html.ini b/tests/wpt/metadata-layout-2020/webmessaging/with-ports/018.html.ini
new file mode 100644
index 00000000000..663a1f8fa30
--- /dev/null
+++ b/tests/wpt/metadata-layout-2020/webmessaging/with-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/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 281db812ef7..cc5831a4c56 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -127315,6 +127315,21 @@
        {}
       ]
      ],
+     "hidpi": {
+      "simple-bg-color.html": [
+       "07bea44d21964b832cd9e4b4f32098ec41a2c206",
+       [
+        null,
+        [
+         [
+          "/css/css-backgrounds/hidpi/simple-bg-color-ref.html",
+          "=="
+         ]
+        ],
+        {}
+       ]
+      ]
+     },
      "inline-background-rtl-001.html": [
       "a7149e2f3c83acf175b5de4f8bcbf63a2c20d4f1",
       [
@@ -138363,7 +138378,7 @@
       ]
      ],
      "css-flexbox-row-reverse-wrap-reverse.html": [
-      "3d0d6a5fa21a4131eccac0ebea4cdfbff1bc6053",
+      "4aa864b8ffab1cc719636938aa9733db7dec05ed",
       [
        null,
        [
@@ -138376,7 +138391,7 @@
       ]
      ],
      "css-flexbox-row-reverse-wrap.html": [
-      "8242f221597a0d397826319eccd879058b39c077",
+      "41550e0dc2457ac299c5b9c445a3f00e50bdd137",
       [
        null,
        [
@@ -138389,7 +138404,7 @@
       ]
      ],
      "css-flexbox-row-reverse.html": [
-      "d5a857eaf252ed3e3fa46cd75e368fffb4f12bac",
+      "1b36e7e0621ceda4a936e719be7520ab1be49e2c",
       [
        null,
        [
@@ -138402,7 +138417,7 @@
       ]
      ],
      "css-flexbox-row-wrap-reverse.html": [
-      "94d4346ba5e7fa2e349cbb36f2a054097a8424e4",
+      "01048564df6efd31cfe60bfc766bfe7bed3fd98c",
       [
        null,
        [
@@ -138415,7 +138430,7 @@
       ]
      ],
      "css-flexbox-row-wrap.html": [
-      "22ed901ba8882070b64e150ab46d2f9dd20dc6e5",
+      "0cbc469c8fde1812ac4c16d6eb03c888923aa667",
       [
        null,
        [
@@ -138428,7 +138443,7 @@
       ]
      ],
      "css-flexbox-row.html": [
-      "15f4f69c3ba0e680f7679fccc499279ec444151e",
+      "f34b7aa10bd68ae9676f3d090876b612e75e1de6",
       [
        null,
        [
@@ -187572,7 +187587,7 @@
        ]
       ],
       "full-width-leading-spaces-004.html": [
-       "eb7d24f042c4cd952c0fb4b8826abf70633fdaab",
+       "f52ae6254c62c2a0a27fc091361297bbdfb90304",
        [
         null,
         [
@@ -188286,7 +188301,7 @@
         {}
        ]
       ],
-      "seg-break-transformation-018.html": [
+      "seg-break-transformation-018.tentative.html": [
        "2faf185856baf75b4820b57cd9b4ffe4161f7a29",
        [
         null,
@@ -188299,7 +188314,7 @@
         {}
        ]
       ],
-      "seg-break-transformation-019.html": [
+      "seg-break-transformation-019.tentative.html": [
        "afbba2642524209eda0378577305b5c0e48d1232",
        [
         null,
@@ -300659,6 +300674,12 @@
       "10324966edb042c1c7298ce22dad76766c2a777b",
       []
      ],
+     "hidpi": {
+      "simple-bg-color-ref.html": [
+       "d768c02b25a82e45cd8cb9e7120d2655d55f33d5",
+       []
+      ]
+     },
      "inset-box-shadow-scroll-ref.html": [
       "55be941bfc35e8d064e811335242fd06dc28da67",
       []
@@ -302854,7 +302875,7 @@
       []
      ],
      "css-flexbox-row-ref.html": [
-      "91eb06c19a680371ea93aa910ba23a9a40a651ce",
+      "21e7a010c7e63ef35c48c3da272daea2fa7f19b7",
       []
      ],
      "css-flexbox-test1-ref.html": [
@@ -350832,7 +350853,7 @@
     ]
    },
    "lint.ignore": [
-    "07c6fb7b85cbe5e2892b247032addc23b20f97e1",
+    "b457f02d14790794883a641f5c3a00fbc386ab9d",
     []
    ],
    "loading": {
@@ -416969,119 +416990,119 @@
         {}
        ]
       ],
-      "seg-break-transformation-000.html": [
+      "seg-break-transformation-000.tentative.html": [
        "cb7b0f30b566320c1022f61fde44bc09695badb1",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-001.html": [
+      "seg-break-transformation-001.tentative.html": [
        "1640878a00bd128dce6f55b76bcba8c852398b07",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-002.html": [
+      "seg-break-transformation-002.tentative.html": [
        "de51bf6f81e2c5ed0347c4ff1527131ab508cf65",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-003.html": [
+      "seg-break-transformation-003.tentative.html": [
        "15b98b69176f689cf28f944f4b6e78fb0485f761",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-004.html": [
+      "seg-break-transformation-004.tentative.html": [
        "e7a12b1337808032135eeacfbf76fc9930f272f7",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-005.html": [
+      "seg-break-transformation-005.tentative.html": [
        "92f91c3bf83734137c9e441ddd9865773faed99e",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-006.html": [
+      "seg-break-transformation-006.tentative.html": [
        "c4fed83d3d0cab5925e76dcf793dd1853d639fe3",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-007.html": [
+      "seg-break-transformation-007.tentative.html": [
        "4f4f4ab7a4c5b4ed028d15b3bbdcddf6dde354e7",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-008.html": [
+      "seg-break-transformation-008.tentative.html": [
        "6d04366bb6a85766fd9f8a089c7fcec1a17530f6",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-009.html": [
+      "seg-break-transformation-009.tentative.html": [
        "c7a79cecac463a88d149d03e15f14dbd8f042e12",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-010.html": [
+      "seg-break-transformation-010.tentative.html": [
        "43b4218df3bb9968f8e175e799d86cb40adb3639",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-011.html": [
+      "seg-break-transformation-011.tentative.html": [
        "d88a8efd34122972faf9275f7bb04821cde9afa1",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-012.html": [
+      "seg-break-transformation-012.tentative.html": [
        "2c8b186c3b97c2c129dbec543bd200d21b2cfe87",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-014.html": [
+      "seg-break-transformation-014.tentative.html": [
        "93dc18a8c9775d2c3d448fbef9213afa4fec4cd2",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-015.html": [
+      "seg-break-transformation-015.tentative.html": [
        "095fcd0dd92388603de0856bf19bc361964f759b",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-016.html": [
+      "seg-break-transformation-016.tentative.html": [
        "2cb36a5b1e8fc28c5ba42a3f8b45645fc45b8eb0",
        [
         null,
         {}
        ]
       ],
-      "seg-break-transformation-017.html": [
+      "seg-break-transformation-017.tentative.html": [
        "52b7ce1f6ab15ac1833067cdf957b1e4c6b4af21",
        [
         null,
@@ -521083,7 +521104,7 @@
       ]
      ],
      "animation-timeline-computed.html": [
-      "02836d714b59081b3a14c2bd124d2ac254d23d58",
+      "8d539789cf8a775f35b57fb1572a04734a4242fa",
       [
        null,
        {}
@@ -521937,6 +521958,15 @@
       {}
      ]
     ],
+    "textcontrols": {
+     "selectionchange.tentative.html": [
+      "061d21f20466eefdf573a76ba3a911c10e36eb69",
+      [
+       null,
+       {}
+      ]
+     ]
+    },
     "toString-ff-bug-001.html": [
      "985be73b5ca2baba2e8f85d12b806805dbf556ff",
      [
@@ -524361,21 +524391,21 @@
       ]
      ],
      "declarative-shadow-dom-attachment.tentative.html": [
-      "99a255bfa2187dd394de252ed5670a0d95896795",
+      "c4a35d341c1f688e9690851982b6cb6a9ef7fa7f",
       [
        null,
        {}
       ]
      ],
      "declarative-shadow-dom-basic.tentative.html": [
-      "aaca71b9580b5b73927ad45c1f46b4faa83bbbf0",
+      "6e3c16a9d82dfa798fed4c54ecb9561832548d07",
       [
        null,
        {}
       ]
      ],
      "declarative-shadow-dom-opt-in.tentative.html": [
-      "eb87fc95e712e1ef2362f388d762f8598c761bd7",
+      "2d6bf5f3f2d90970f109aa4213bc8de79775811c",
       [
        null,
        {}
@@ -524417,7 +524447,7 @@
       ]
      ],
      "setinnerhtml.tentative.html": [
-      "076fdac2b0dda4fadfb1584a8b7650f736e7a908",
+      "c65bf04a06c97343025aa1e795a8e440edbe763b",
       [
        null,
        {}
@@ -534952,7 +534982,7 @@
     ],
     "interface": {
      "click-event.htm": [
-      "2f9b483b94c9c2b648cc180c1bb643826913f710",
+      "8542f98cb13ea53426af1eb9f6025c4c5c8b7f58",
       [
        null,
        {}
@@ -544839,7 +544869,7 @@
      ]
     ],
     "video-decoder.html": [
-     "f653ba03b09a51b9e25b90173b4d7002242e05e7",
+     "ff48625dc8c2a8718895831e6dd0c82b9c17d7c2",
      [
       null,
       {}
diff --git a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-003.html.ini b/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-003.html.ini
deleted file mode 100644
index f29da48a2a0..00000000000
--- a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-003.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-003.html]
-  [Miss float below something else]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-004.html.ini b/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-004.html.ini
deleted file mode 100644
index 4bfb0c2053a..00000000000
--- a/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-004.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[hit-test-floats-004.html]
-  [Miss float below something else]
-    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
new file mode 100644
index 00000000000..baa9f1a7541
--- /dev/null
+++ b/tests/wpt/metadata/css/CSS2/floats/hit-test-floats-005.html.ini
@@ -0,0 +1,4 @@
+[hit-test-floats-005.html]
+  [Miss clipped float]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini b/tests/wpt/metadata/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini
new file mode 100644
index 00000000000..8efb7024ae4
--- /dev/null
+++ b/tests/wpt/metadata/css/CSS2/normal-flow/hit-test-anonymous-block.html.ini
@@ -0,0 +1,4 @@
+[hit-test-anonymous-block.html]
+  [Hit test beside line of text inside anonymous block]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/white-space/full-width-leading-spaces-004.html.ini b/tests/wpt/metadata/css/css-text/white-space/full-width-leading-spaces-004.html.ini
index efe5fead06b..de1424d9ba6 100644
--- a/tests/wpt/metadata/css/css-text/white-space/full-width-leading-spaces-004.html.ini
+++ b/tests/wpt/metadata/css/css-text/white-space/full-width-leading-spaces-004.html.ini
@@ -1,3 +1,2 @@
 [full-width-leading-spaces-004.html]
-  expected:
-    if os == "mac": FAIL
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-001.tentative.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-001.tentative.html.ini
new file mode 100644
index 00000000000..c5c108bf204
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-001.tentative.html.ini
@@ -0,0 +1,19 @@
+[seg-break-transformation-001.tentative.html]
+  [linebreak only]
+    expected: FAIL
+
+  [spaces linebreak spaces]
+    expected: FAIL
+
+  [multiple linebreaks]
+    expected: FAIL
+
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
+  [multiple linebreaks + spaces]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-002.tentative.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-002.tentative.html.ini
new file mode 100644
index 00000000000..675ff4f386e
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-002.tentative.html.ini
@@ -0,0 +1,19 @@
+[seg-break-transformation-002.tentative.html]
+  [linebreak only]
+    expected: FAIL
+
+  [spaces linebreak spaces]
+    expected: FAIL
+
+  [multiple linebreaks]
+    expected: FAIL
+
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
+  [multiple linebreaks + spaces]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-003.tentative.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-003.tentative.html.ini
new file mode 100644
index 00000000000..71316b6e711
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-003.tentative.html.ini
@@ -0,0 +1,19 @@
+[seg-break-transformation-003.tentative.html]
+  [linebreak only]
+    expected: FAIL
+
+  [spaces linebreak spaces]
+    expected: FAIL
+
+  [multiple linebreaks]
+    expected: FAIL
+
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
+  [multiple linebreaks + spaces]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini
new file mode 100644
index 00000000000..3d66d0b5240
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-004.tentative.html.ini
@@ -0,0 +1,37 @@
+[seg-break-transformation-004.tentative.html]
+  [spaces linebreak spaces ₩２４]
+    expected: FAIL
+
+  [spaces linebreak ₩２４]
+    expected: FAIL
+
+  [linebreak only ２４₩]
+    expected: FAIL
+
+  [spaces linebreak ２４₩]
+    expected: FAIL
+
+  [spaces linebreak spaces ２４₩]
+    expected: FAIL
+
+  [linebreak only ₩２４]
+    expected: FAIL
+
+  [multiple linebreaks ₩２４]
+    expected: FAIL
+
+  [linebreak spaces ₩２４]
+    expected: FAIL
+
+  [multiple linebreaks + spaces ２４₩]
+    expected: FAIL
+
+  [linebreak spaces ２４₩]
+    expected: FAIL
+
+  [multiple linebreaks + spaces ₩２４]
+    expected: FAIL
+
+  [multiple linebreaks ２４₩]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-008.tentative.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-008.tentative.html.ini
new file mode 100644
index 00000000000..202edfd93ea
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-008.tentative.html.ini
@@ -0,0 +1,19 @@
+[seg-break-transformation-008.tentative.html]
+  [linebreak only]
+    expected: FAIL
+
+  [spaces linebreak spaces]
+    expected: FAIL
+
+  [multiple linebreaks]
+    expected: FAIL
+
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
+  [multiple linebreaks + spaces]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-009.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-009.html.ini
deleted file mode 100644
index 6fca037cff7..00000000000
--- a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-009.html.ini
+++ /dev/null
@@ -1,20 +0,0 @@
-[seg-break-transformation-009.html]
-  type: testharness
-  [linebreak only]
-    expected: FAIL
-
-  [spaces linebreak]
-    expected: FAIL
-
-  [linebreak spaces]
-    expected: FAIL
-
-  [spaces linebreak spaces]
-    expected: FAIL
-
-  [multiple linebreaks]
-    expected: FAIL
-
-  [multiple linebreaks + spaces]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-009.tentative.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-009.tentative.html.ini
new file mode 100644
index 00000000000..78891de80d8
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-009.tentative.html.ini
@@ -0,0 +1,19 @@
+[seg-break-transformation-009.tentative.html]
+  [linebreak only]
+    expected: FAIL
+
+  [spaces linebreak spaces]
+    expected: FAIL
+
+  [multiple linebreaks]
+    expected: FAIL
+
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
+  [multiple linebreaks + spaces]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-016.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-016.html.ini
deleted file mode 100644
index 4ceb0954a30..00000000000
--- a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-016.html.ini
+++ /dev/null
@@ -1,20 +0,0 @@
-[seg-break-transformation-016.html]
-  type: testharness
-  [linebreak only]
-    expected: FAIL
-
-  [spaces linebreak]
-    expected: FAIL
-
-  [linebreak spaces]
-    expected: FAIL
-
-  [spaces linebreak spaces]
-    expected: FAIL
-
-  [multiple linebreaks]
-    expected: FAIL
-
-  [multiple linebreaks + spaces]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-016.tentative.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-016.tentative.html.ini
new file mode 100644
index 00000000000..bdeb155f422
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-016.tentative.html.ini
@@ -0,0 +1,19 @@
+[seg-break-transformation-016.tentative.html]
+  [linebreak only]
+    expected: FAIL
+
+  [spaces linebreak spaces]
+    expected: FAIL
+
+  [multiple linebreaks]
+    expected: FAIL
+
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
+  [multiple linebreaks + spaces]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-017.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-017.html.ini
deleted file mode 100644
index 7c1e96b00c3..00000000000
--- a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-017.html.ini
+++ /dev/null
@@ -1,20 +0,0 @@
-[seg-break-transformation-017.html]
-  type: testharness
-  [linebreak only]
-    expected: FAIL
-
-  [spaces linebreak]
-    expected: FAIL
-
-  [linebreak spaces]
-    expected: FAIL
-
-  [spaces linebreak spaces]
-    expected: FAIL
-
-  [multiple linebreaks]
-    expected: FAIL
-
-  [multiple linebreaks + spaces]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-017.tentative.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-017.tentative.html.ini
new file mode 100644
index 00000000000..6a104b7c781
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-017.tentative.html.ini
@@ -0,0 +1,19 @@
+[seg-break-transformation-017.tentative.html]
+  [linebreak only]
+    expected: FAIL
+
+  [spaces linebreak spaces]
+    expected: FAIL
+
+  [multiple linebreaks]
+    expected: FAIL
+
+  [linebreak spaces]
+    expected: FAIL
+
+  [spaces linebreak]
+    expected: FAIL
+
+  [multiple linebreaks + spaces]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-018.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-018.html.ini
deleted file mode 100644
index 4dd2afd26f6..00000000000
--- a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-018.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[seg-break-transformation-018.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-018.tentative.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-018.tentative.html.ini
new file mode 100644
index 00000000000..d2dade8bef3
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-018.tentative.html.ini
@@ -0,0 +1,2 @@
+[seg-break-transformation-018.tentative.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-019.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-019.html.ini
deleted file mode 100644
index fcca9df48b3..00000000000
--- a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-019.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[seg-break-transformation-019.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-019.tentative.html.ini b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-019.tentative.html.ini
new file mode 100644
index 00000000000..03cf9febb53
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/seg-break-transformation-019.tentative.html.ini
@@ -0,0 +1,2 @@
+[seg-break-transformation-019.tentative.html]
+  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 f8e7e539aae..4a1e8110f6f 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
@@ -2,6 +2,3 @@
   [Hit test intersecting scaled box]
     expected: FAIL
 
-  [Hit test within unscaled box]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/cssom-view/elementFromPoint-001.html.ini b/tests/wpt/metadata/css/cssom-view/elementFromPoint-001.html.ini
deleted file mode 100644
index e38782d8c85..00000000000
--- a/tests/wpt/metadata/css/cssom-view/elementFromPoint-001.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[elementFromPoint-001.html]
-  [CSSOM View - 5 - extensions to the Document interface]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
index 171592fc08f..6ef8bb1049f 100644
--- a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
+++ b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
@@ -2,3 +2,6 @@
   [elementsFromPoint on the root document for points in iframe elements]
     expected: FAIL
 
+  [elementsFromPoint on inner documents]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-invalid-cases.html.ini b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
deleted file mode 100644
index e181af5397f..00000000000
--- a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-invalid-cases.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[elementsFromPoint-invalid-cases.html]
-  [The root element is the last element returned for otherwise empty queries within the viewport]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini b/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini
new file mode 100644
index 00000000000..e6e1f29e274
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini
@@ -0,0 +1,2 @@
+[matchMedia-display-none-iframe.html]
+  expected: ERROR
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 ab6c4d2daae..e0039329541 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -312,24 +312,18 @@
   [<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>: separate response Content-Type: text/html */*]
-    expected: FAIL
-
   [<iframe>: separate response Content-Type: text/html;x=" text/plain]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
-    expected: FAIL
-
   [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
   [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     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
+
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 b2ffc8abf78..d2df9b78483 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -56,6 +56,3 @@
   [separate text/javascript x/x]
     expected: FAIL
 
-  [separate text/javascript error]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
index 58de838d890..7277f622b20 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,6 +11,6 @@
   [X-Content-Type-Options%3A%20nosniff%2C%2C%40%23%24%23%25%25%26%5E%26%5E*()()11!]
     expected: FAIL
 
-  [X-Content-Type-Options%3A%20%22nosniFF%22]
+  [X-Content-Type-Options%3A%20%2Cnosniff]
     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
index dec4c579137..16fa2c5cfc1 100644
--- 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
@@ -1,5 +1,4 @@
 [creating_browsing_context_test_01.html]
-  expected: TIMEOUT
   [first argument: absolute url]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini b/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini
index 6852d7663de..c12c0f8ae48 100644
--- a/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini
+++ b/tests/wpt/metadata/html/interaction/focus/the-autofocus-attribute/skip-document-with-fragment.html.ini
@@ -1,8 +1,4 @@
 [skip-document-with-fragment.html]
-  expected: TIMEOUT
   [Autofocus elements in iframed documents with URL fragments should be skipped.]
     expected: FAIL
 
-  [Autofocus elements in top-level browsing context's documents with URI fragments should be skipped.]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini
index e63fe7c263e..c6f45be1eb2 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html.ini
@@ -1,5 +1,5 @@
 [iframe_sandbox_popups_escaping-2.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/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 3f7e3e9544f..4bc0524f105 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
@@ -1,5 +1,6 @@
 [iframe_sandbox_popups_nonescaping-1.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/forms/form-submission-0/form-double-submit.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini
deleted file mode 100644
index b193c33c2b6..00000000000
--- a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[form-double-submit.html]
-  [default submit action should supersede onclick submit()]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
new file mode 100644
index 00000000000..178680e5d14
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
@@ -0,0 +1,2 @@
+[script-onerror-insertion-point-2.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/module-static-import-delayed.html.ini b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/module-static-import-delayed.html.ini
new file mode 100644
index 00000000000..fca4d908c89
--- /dev/null
+++ b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/module-static-import-delayed.html.ini
@@ -0,0 +1,4 @@
+[module-static-import-delayed.html]
+  [document.write in an imported module]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/selection/textcontrols/selectionchange.tentative.html.ini b/tests/wpt/metadata/selection/textcontrols/selectionchange.tentative.html.ini
new file mode 100644
index 00000000000..c87f1b4d2a2
--- /dev/null
+++ b/tests/wpt/metadata/selection/textcontrols/selectionchange.tentative.html.ini
@@ -0,0 +1,2 @@
+[selectionchange.tentative.html]
+  expected: ERROR
diff --git a/tests/wpt/metadata/uievents/interface/click-event.htm.ini b/tests/wpt/metadata/uievents/interface/click-event.htm.ini
new file mode 100644
index 00000000000..146f6e339f5
--- /dev/null
+++ b/tests/wpt/metadata/uievents/interface/click-event.htm.ini
@@ -0,0 +1,4 @@
+[click-event.htm]
+  [synthetic click event is a PointerEvent]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
index 46675e26767..7ebe3535e43 100644
--- a/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
@@ -524,3 +524,9 @@
   [X SNR (-288.33093763692256 dB) is not greater than or equal to 65.737. Got -288.33093763692256.]
     expected: FAIL
 
+  [X Stitched sine-wave buffers at sample rate 43800 does not equal [0,0.06264832615852356,0.12505052983760834,0.18696144223213196,0.24813786149024963,0.308339387178421,0.36732959747314453,0.4248766601085663,0.480754554271698,0.5347436666488647,0.5866320133209229,0.6362156271934509,0.6832997798919678,0.7276994585990906,0.7692402601242065,0.8077589869499207...\] with an element-wise tolerance of {"absoluteThreshold":0.0038986,"relativeThreshold":0}.\n\tIndex\tActual\t\t\tExpected\t\tAbsError\t\tRelError\t\tTest threshold\n\t[28696\]\t1.3765744018554688e+2\t9.3139332532882690e-1\t1.3672604686021805e+2\t1.4679732304496292e+2\t3.8985999999999999e-3\n\t[28697\]\t7.0477002859115601e-1\t9.0675884485244751e-1\t2.0198881626129150e-1\t2.2275913536212616e-1\t3.8985999999999999e-3\n\tMax AbsError of 1.3672604686021805e+2 at index of 28696.\n\tMax RelError of 1.4679732304496292e+2 at index of 28696.\n]
+    expected: FAIL
+
+  [X SNR (0.7170499654840768 dB) is not greater than or equal to 65.737. Got 0.7170499654840768.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webdriver/tests/get_current_url/iframe.py.ini b/tests/wpt/metadata/webdriver/tests/get_current_url/iframe.py.ini
new file mode 100644
index 00000000000..01329cbd8bb
--- /dev/null
+++ b/tests/wpt/metadata/webdriver/tests/get_current_url/iframe.py.ini
@@ -0,0 +1,13 @@
+[iframe.py]
+  [test_origin[same_origin\]]
+    expected: ERROR
+
+  [test_origin[cross_origin\]]
+    expected: ERROR
+
+  [test_iframe]
+    expected: ERROR
+
+  [test_nested_iframe]
+    expected: ERROR
+
diff --git a/tests/wpt/metadata/webmessaging/with-ports/017.html.ini b/tests/wpt/metadata/webmessaging/with-ports/017.html.ini
deleted file mode 100644
index 064cf47545b..00000000000
--- a/tests/wpt/metadata/webmessaging/with-ports/017.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[017.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, about:blank]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/webmessaging/with-ports/018.html.ini b/tests/wpt/metadata/webmessaging/with-ports/018.html.ini
new file mode 100644
index 00000000000..663a1f8fa30
--- /dev/null
+++ b/tests/wpt/metadata/webmessaging/with-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/web-platform-tests/css/css-backgrounds/hidpi/simple-bg-color-ref.html b/tests/wpt/web-platform-tests/css/css-backgrounds/hidpi/simple-bg-color-ref.html
new file mode 100644
index 00000000000..d768c02b25a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-backgrounds/hidpi/simple-bg-color-ref.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<body>
+  <canvas id="canvas" width="400" height="800"></canvas>
+</body>
+<script>
+  var canvas = document.getElementById('canvas');
+  canvas.style.width = (canvas.width / 2) + 'px';
+  canvas.style.height = (canvas.height / 2) + 'px';
+  var ctx = canvas.getContext('2d');
+  ctx.scale(2, 2);
+  ctx.fillStyle = 'green';
+  ctx.fillRect(0, 0, 100, 150);
+  ctx.fillStyle = 'red';
+  ctx.fillRect(0, 150, 200, 250);
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-backgrounds/hidpi/simple-bg-color.html b/tests/wpt/web-platform-tests/css/css-backgrounds/hidpi/simple-bg-color.html
new file mode 100644
index 00000000000..07bea44d219
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-backgrounds/hidpi/simple-bg-color.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#background-color">
+<link rel="match" href="simple-bg-color-ref.html">
+<style>
+.box1 {
+  width: 100px;
+  height: 150px;
+  background-color: green;
+}
+.box2 {
+  width: 200px;
+  height: 250px;
+  background-color: red;
+}
+</style>
+<body>
+  <div class='box1'></div>
+  <div class='box2'></div>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-ref.html b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-ref.html
index 91eb06c19a6..21e7a010c7e 100644
--- a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-ref.html
@@ -4,27 +4,21 @@
     <meta charset="utf-8" />
     <title>CSS Reftest Reference</title>
     <link rel="author" title="Tsutomu ogaoga Ogasawara" href="mailto:info@ogaoga.org">
-    <style type="text/css">
-        .container {
-            color: white;
-        }
+
+    <style>
         .item {
-            writing-mode: vertical-rl;
-            background: green;
-            height: 3em;
-            width: 3em;
-            line-height: 1.5em;
+            width: 15px;
+            height: 45px;
+            float: left;
         }
     </style>
 </head>
-<body>
-  <p>The test passes if you see a tall green box with pairs of the 1-9 and a-i listed top to bottom in two columns.</p>
 
-  <div class="container">
-    <div class="item">１２３<br />ａｂｃ</div>
-    <div class="item">４５６<br />ｄｅｆ</div>
-    <div class="item">７８９<br />ｇｈｉ</div>
-  </div>
+<p>Pass condition: 4 rectangles, with colors in clockwise order starting from top-left: grey, orange, blue, yellow.
 
-</body>
-</html>
+<div style="height: 90px; width: 30px; border: 2px solid black;">
+    <div class="item" style="background: grey"></div>
+    <div class="item" style="background: orange"></div>
+    <div class="item" style="background: yellow"></div>
+    <div class="item" style="background: blue"></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse-wrap-reverse.html b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse-wrap-reverse.html
index 3d0d6a5fa21..4aa864b8ffa 100644
--- a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse-wrap-reverse.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse-wrap-reverse.html
@@ -18,39 +18,26 @@
             display: flex;
             flex-flow: row-reverse wrap-reverse;
             writing-mode: vertical-rl;
-            color: white;
-
-            height: 9em;
+            border: 2px solid black;
+            height: 90px;
         }
         .item {
-            background: green;
-            height: 3em;
-            width: 1.5em;
-            line-height: 1.5em;
+            width: 15px;
+            height: 45px;
 
             /* make sure UA that doesn't support writing mode and flexbox fails. */
             float: right;
         }
-        .error {
-            position: absolute;
-            background: red;
-            height: 9em;
-            width: 3em;
-            z-index: -1;
-        }
     </style>
 </head>
 <body>
-  <p>The test passes if you see a tall green box with pairs of the 1-9 and a-i listed top to bottom in two columns.</p>
+<p>Pass condition: 4 rectangles, with colors in clockwise order starting from top-left: grey, orange, blue, yellow.
 
-  <div class="error"></div>
   <div class="container">
-    <div class="item">ｇｈｉ</div>
-    <div class="item">ｄｅｆ</div>
-    <div class="item">ａｂｃ</div>
-    <div class="item">７８９</div>
-    <div class="item">４５６</div>
-    <div class="item">１２３</div>
+    <div class="item" style="background: yellow"></div>
+    <div class="item" style="background: grey"></div>
+    <div class="item" style="background: blue"></div>
+    <div class="item" style="background: orange"></div>
   </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse-wrap.html b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse-wrap.html
index 8242f221597..41550e0dc24 100644
--- a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse-wrap.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse-wrap.html
@@ -18,39 +18,26 @@
             display: flex;
             flex-flow: row-reverse wrap;
             writing-mode: vertical-rl;
-            color: white;
-
-            height: 9em;
+            border: 2px solid black;
+            height: 90px;
         }
         .item {
-            background: green;
-            height: 3em;
-            width: 1.5em;
-            line-height: 1.5em;
+            width: 15px;
+            height: 45px;
 
             /* make sure UA that doesn't support writing mode and flexbox fails. */
             float: right;
         }
-        .error {
-            position: absolute;
-            background: red;
-            height: 9em;
-            width: 3em;
-            z-index: -1;
-        }
     </style>
 </head>
 <body>
-  <p>The test passes if you see a tall green box with pairs of the 1-9 and a-i listed top to bottom in two columns.</p>
+<p>Pass condition: 4 rectangles, with colors in clockwise order starting from top-left: grey, orange, blue, yellow.
 
-  <div class="error"></div>
   <div class="container">
-    <div class="item">７８９</div>
-    <div class="item">４５６</div>
-    <div class="item">１２３</div>
-    <div class="item">ｇｈｉ</div>
-    <div class="item">ｄｅｆ</div>
-    <div class="item">ａｂｃ</div>
+    <div class="item" style="background: blue"></div>
+    <div class="item" style="background: orange"></div>
+    <div class="item" style="background: yellow"></div>
+    <div class="item" style="background: grey"></div>
   </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse.html b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse.html
index d5a857eaf25..1b36e7e0621 100644
--- a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-reverse.html
@@ -18,34 +18,35 @@
             display: flex;
             flex-flow: row-reverse;
             writing-mode: vertical-rl;
-            color: white;
+            border: 2px solid black;
+            height: 90px;
         }
         .item {
-            background: green;
-            height: 3em;
-            width: 3em;
-            line-height: 1.5em;
+            line-height: 0;
 
             /* make sure UA that doesn't support writing mode and flexbox fails. */
             float: right;
         }
-        .error {
-            position: absolute;
-            background: red;
-            height: 9em;
-            width: 3em;
-            z-index: -1;
+        .color-block {
+          display: inline-block;
+          width: 15px;
+          height: 45px;
         }
     </style>
 </head>
 <body>
-  <p>The test passes if you see a tall green box with pairs of the 1-9 and a-i listed top to bottom in two columns.</p>
-
-  <div class="error"></div>
+  <p>Pass condition: 4 rectangles, with colors in clockwise order starting from top-left: grey, orange, blue, yellow.
   <div class="container">
-    <div class="item">７８９<br />ｇｈｉ</div>
-    <div class="item">４５６<br />ｄｅｆ</div>
-    <div class="item">１２３<br />ａｂｃ</div>
+    <div class="item">
+      <span class=color-block style="background: blue;"></span>
+      <br />
+      <span class=color-block style="background: yellow;"></span>
+    </div>
+    <div class="item">
+      <span class=color-block style="background: orange;"></span>
+      <br />
+      <span class=color-block style="background: grey;"></span>
+    </div>
   </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-wrap-reverse.html b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-wrap-reverse.html
index 94d4346ba5e..01048564df6 100644
--- a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-wrap-reverse.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-wrap-reverse.html
@@ -18,39 +18,25 @@
             display: flex;
             flex-flow: row wrap-reverse;
             writing-mode: vertical-rl;
-            color: white;
-
-            height: 9em;
+            border: 2px solid black;
+            height: 90px;
         }
         .item {
-            background: green;
-            height: 3em;
-            width: 1.5em;
-            line-height: 1.5em;
+            width: 15px;
+            height: 45px;
 
             /* make sure UA that doesn't support writing mode and flexbox fails. */
             float: right;
         }
-        .error {
-            position: absolute;
-            background: red;
-            height: 9em;
-            width: 3em;
-            z-index: -1;
-        }
     </style>
 </head>
 <body>
-  <p>The test passes if you see a tall green box with pairs of the 1-9 and a-i listed top to bottom in two columns.</p>
-
-  <div class="error"></div>
+<p>Pass condition: 4 rectangles, with colors in clockwise order starting from top-left: grey, orange, blue, yellow.
   <div class="container">
-    <div class="item">ａｂｃ</div>
-    <div class="item">ｄｅｆ</div>
-    <div class="item">ｇｈｉ</div>
-    <div class="item">１２３</div>
-    <div class="item">４５６</div>
-    <div class="item">７８９</div>
+    <div class="item" style="background: grey"></div>
+    <div class="item" style="background: yellow"></div>
+    <div class="item" style="background: orange"></div>
+    <div class="item" style="background: blue"></div>
   </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-wrap.html b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-wrap.html
index 22ed901ba88..0cbc469c8fd 100644
--- a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-wrap.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row-wrap.html
@@ -18,39 +18,26 @@
             display: flex;
             flex-flow: row wrap;
             writing-mode: vertical-rl;
-            color: white;
-
-            height: 9em;
+            border: 2px solid black;
+            height: 90px;
         }
         .item {
-            background: green;
-            height: 3em;
-            width: 1.5em;
-            line-height: 1.5em;
+            width: 15px;
+            height: 45px;
 
             /* make sure UA that doesn't support writing mode and flexbox fails. */
             float: right;
         }
-        .error {
-            position: absolute;
-            background: red;
-            height: 9em;
-            width: 3em;
-            z-index: -1;
-        }
     </style>
 </head>
 <body>
-  <p>The test passes if you see a tall green box with pairs of the 1-9 and a-i listed top to bottom in two columns.</p>
+<p>Pass condition: 4 rectangles, with colors in clockwise order starting from top-left: grey, orange, blue, yellow.
 
-  <div class="error"></div>
   <div class="container">
-    <div class="item">１２３</div>
-    <div class="item">４５６</div>
-    <div class="item">７８９</div>
-    <div class="item">ａｂｃ</div>
-    <div class="item">ｄｅｆ</div>
-    <div class="item">ｇｈｉ</div>
+    <div class="item" style="background: orange"></div>
+    <div class="item" style="background: blue"></div>
+    <div class="item" style="background: grey"></div>
+    <div class="item" style="background: yellow"></div>
   </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row.html b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row.html
index 15f4f69c3ba..f34b7aa10bd 100644
--- a/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/css-flexbox-row.html
@@ -18,35 +18,35 @@
             display: flex;
             flex-flow: row;
             writing-mode: vertical-rl;
-            color: white;
+            border: 2px solid black;
+            height: 90px;
         }
         .item {
-            background: green;
-            height: 3em;
-            width: 3em;
-            line-height: 1.5em;
+            line-height: 0;
 
             /* make sure UA that doesn't support writing mode and flexbox fails. */
             float: right;
         }
-        .error {
-            position: absolute;
-            background: red;
-            height: 9em;
-            width: 3em;
-            z-index: -1;
+        .color-block {
+          display: inline-block;
+          width: 15px;
+          height: 45px;
         }
     </style>
 </head>
 <body>
-
-  <p>The test passes if you see a tall green box with pairs of the 1-9 and a-i listed top to bottom in two columns.</p>
-
-  <div class="error"></div>
+  <p>Pass condition: 4 rectangles, with colors in clockwise order starting from top-left: grey, orange, blue, yellow.
   <div class="container">
-    <div class="item">１２３<br />ａｂｃ</div>
-    <div class="item">４５６<br />ｄｅｆ</div>
-    <div class="item">７８９<br />ｇｈｉ</div>
+    <div class="item">
+      <span class=color-block style="background: orange;"></span>
+      <br />
+      <span class=color-block style="background: grey;"></span>
+    </div>
+    <div class="item">
+      <span class=color-block style="background: blue;"></span>
+      <br />
+      <span class=color-block style="background: yellow;"></span>
+    </div>
   </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/full-width-leading-spaces-004.html b/tests/wpt/web-platform-tests/css/css-text/white-space/full-width-leading-spaces-004.html
index eb7d24f042c..f52ae6254c6 100644
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/full-width-leading-spaces-004.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/full-width-leading-spaces-004.html
@@ -1,22 +1,22 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
-<title>CSS Text level 3 Test: handling leading ideographic space sequence</title>
+<title>CSS Text level 3 Test: handling trailing ideographic space sequence</title>
 <link rel="author" title="Javier Fernandez Garcia-Boente" href="mailto:jfernandez@igalia.com">
 <link rel="help" href="https://drafts.csswg.org/css-text-3/#white-space-phase-2">
 <link rel="match" href="reference/white-space-break-spaces-005-ref.html">
-<meta name="assert" content="Leading ideographic space sequences must account for intrinsic size.">
+<meta name="assert" content="Ideographic space sequences at the end of line must hang, and therefore not be taken into account for min content sizing.">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <style>
 .ref {
     width: 100px;
     height: 100px;
-    background: red;
+    background: green;
 }
 .test {
     width: min-content;
     font-size: 100px;
     line-height: 1;
-    background: green;
+    background: red;
 }
 </style>
 
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-000.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-000.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-000.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-000.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-001.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-001.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-001.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-001.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-002.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-002.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-002.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-002.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-003.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-003.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-003.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-003.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-004.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-004.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-004.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-004.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-005.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-005.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-005.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-005.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-006.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-006.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-006.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-006.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-007.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-007.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-007.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-007.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-008.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-008.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-008.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-008.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-009.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-009.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-009.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-009.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-010.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-010.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-010.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-010.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-011.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-011.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-011.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-011.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-012.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-012.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-012.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-012.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-014.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-014.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-014.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-014.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-015.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-015.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-015.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-015.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-016.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-016.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-016.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-016.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-017.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-017.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-017.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-017.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-018.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-018.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-018.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-018.tentative.html
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-019.html b/tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-019.tentative.html
similarity index 100%
rename from tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-019.html
rename to tests/wpt/web-platform-tests/css/css-text/white-space/seg-break-transformation-019.tentative.html
diff --git a/tests/wpt/web-platform-tests/lint.ignore b/tests/wpt/web-platform-tests/lint.ignore
index 07c6fb7b85c..b457f02d147 100644
--- a/tests/wpt/web-platform-tests/lint.ignore
+++ b/tests/wpt/web-platform-tests/lint.ignore
@@ -619,6 +619,8 @@ CSS-COLLIDING-SUPPORT-NAME: css/CSS2/normal-flow/support/replaced-min-max-1.png
 CSS-COLLIDING-SUPPORT-NAME: css/vendor-imports/mozilla/mozilla-central-reftests/ui3/support/replaced-min-max-1.png
 CSS-COLLIDING-REF-NAME: css/css-multicol/baseline-001-ref.html
 CSS-COLLIDING-REF-NAME: css/css-grid/subgrid/baseline-001-ref.html
+CSS-COLLIDING-REF-NAME: css/css-backgrounds/simple-bg-color-ref.html
+CSS-COLLIDING-REF-NAME: css/css-backgrounds/hidpi/simple-bg-color-ref.html
 
 CSS-COLLIDING-TEST-NAME: css/css-contain/inheritance.html
 CSS-COLLIDING-TEST-NAME: css/css-contain/content-visibility/inheritance.html
diff --git a/tests/wpt/web-platform-tests/scroll-animations/css/animation-timeline-computed.html b/tests/wpt/web-platform-tests/scroll-animations/css/animation-timeline-computed.html
index 02836d714b5..8d539789cf8 100644
--- a/tests/wpt/web-platform-tests/scroll-animations/css/animation-timeline-computed.html
+++ b/tests/wpt/web-platform-tests/scroll-animations/css/animation-timeline-computed.html
@@ -39,7 +39,7 @@ test(() => {
 }, 'The animation-timeline property shows up in CSSStyleDeclaration enumeration');
 
 test(() => {
-  let style = getComputedStyle(document.getElementById('target'));
+  let style = document.getElementById('target').style;
   assert_not_equals(style.cssText.indexOf('animation-timeline'), -1);
 }, 'The animation-timeline property shows up in CSSStyleDeclaration.cssText');
 </script>
diff --git a/tests/wpt/web-platform-tests/selection/textcontrols/selectionchange.tentative.html b/tests/wpt/web-platform-tests/selection/textcontrols/selectionchange.tentative.html
new file mode 100644
index 00000000000..061d21f2046
--- /dev/null
+++ b/tests/wpt/web-platform-tests/selection/textcontrols/selectionchange.tentative.html
@@ -0,0 +1,192 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Test selectionchange events from text controls</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="stylesheet" href="/fonts/ahem.css">
+<style>
+  input,
+  textarea {
+    font: 16px/1 Ahem;
+  }
+</style>
+
+<input id="input" value="XXXXXXXXXXXXXXXXXXX" width="200"><br>
+<textarea id="textarea" width="200">XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX</textarea>
+
+<script>
+  class SelectionChangeCollector {
+    constructor(target) {
+      this.events = [];
+      target.addEventListener("selectionchange", ev => {
+        this.events.push(ev);
+      });
+    }
+    clear() {
+      this.events.length = 0;
+    }
+  }
+
+  const data = {
+    input: new SelectionChangeCollector(input),
+    textarea: new SelectionChangeCollector(textarea),
+    async initialize() {
+      input.blur();
+      textarea.blur();
+      input.selectionStart = input.selectionEnd = 0;
+      textarea.selectionStart = textarea.selectionEnd = 0;
+      await this.spin();
+      this.input.clear();
+      this.textarea.clear();
+    },
+    spin() {
+      return new Promise(setTimeout);
+    },
+    async assert_empty_spin() {
+      // firing selectionchange must be asynchronous
+      assert_equals(this.input.events.length, 0);
+      assert_equals(this.textarea.events.length, 0);
+      await this.spin();
+    }
+  };
+
+  promise_test(async () => {
+    await data.initialize();
+
+    textarea.selectionStart = 1;
+
+    await data.assert_empty_spin();
+    assert_equals(data.textarea.events.length, 1);
+  }, "Modifying selectionStart value of the textarea element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    textarea.selectionEnd = 1;
+
+    await data.assert_empty_spin();
+    assert_equals(data.textarea.events.length, 1);
+  }, "Modifying selectionEnd value of the textarea element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    textarea.setSelectionRange(0, 4);
+
+    await data.assert_empty_spin();
+    assert_equals(data.textarea.events.length, 1);
+  }, "Calling setSelectionRange() on the textarea element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    input.select();
+
+    await data.assert_empty_spin();
+    assert_equals(data.input.events.length, 1);
+  }, "Calling select() on the input element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    textarea.select();
+
+    await data.assert_empty_spin();
+    assert_equals(data.textarea.events.length, 1);
+  }, "Calling select() on the textarea element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    input.selectionStart = 0;
+
+    await data.assert_empty_spin();
+    assert_equals(data.input.events.length, 0);
+  }, "Setting initial zero selectionStart value on the input element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    input.selectionEnd = 0;
+
+    await data.assert_empty_spin();
+    assert_equals(data.input.events.length, 0);
+  }, "Setting initial zero selectionEnd value on the input element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    textarea.selectionStart = 0;
+
+    await data.assert_empty_spin();
+    assert_equals(data.textarea.events.length, 0);
+  }, "Setting initial zero selectionStart value on the textarea element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    textarea.selectionStart = 2;
+    textarea.selectionStart = 2;
+
+    await data.assert_empty_spin();
+    assert_equals(data.textarea.events.length, 1);
+  }, "Setting the same selectionStart value twice on the textarea element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    textarea.selectionEnd = 0;
+
+    await data.assert_empty_spin();
+    assert_equals(data.textarea.events.length, 0);
+  }, "Setting initial zero selectionEnd value on the textarea element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    textarea.selectionEnd = 2;
+    textarea.selectionEnd = 2;
+
+    await data.assert_empty_spin();
+    assert_equals(data.textarea.events.length, 1);
+  }, "Setting the same selectionEnd value twice on the textarea element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    textarea.setSelectionRange(0, 0);
+
+    await data.assert_empty_spin();
+    assert_equals(data.textarea.events.length, 0);
+  }, "Setting initial zero selection range on the textarea element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    textarea.setSelectionRange(3, 3);
+    textarea.setSelectionRange(3, 3);
+
+    await data.assert_empty_spin();
+    assert_equals(data.textarea.events.length, 1);
+  }, "Setting the same selection range twice on the textarea element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    input.select();
+    input.select();
+
+    await data.assert_empty_spin();
+    assert_equals(data.input.events.length, 1);
+  }, "Calling select() twice on the input element");
+
+  promise_test(async () => {
+    await data.initialize();
+
+    textarea.select();
+    textarea.select();
+
+    await data.assert_empty_spin();
+    assert_equals(data.textarea.events.length, 1);
+  }, "Calling select() twice on the textarea element");
+</script>
diff --git a/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-attachment.tentative.html b/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-attachment.tentative.html
index 99a255bfa21..c4a35d341c1 100644
--- a/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-attachment.tentative.html
+++ b/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-attachment.tentative.html
@@ -18,7 +18,7 @@ function addDeclarativeShadowRoot(elementType, mode, delegatesFocus) {
   const declarativeString = `<${elementType} id=theelement>${getDeclarativeContent(mode, delegatesFocus)}
      <span class='lightdom'>${lightDomTextContent}</span></${elementType}>`;
   const wrapper = document.createElement('div');
-  wrapper.setInnerHTML(declarativeString, {allowShadowRoot: true});
+  wrapper.setInnerHTML(declarativeString, {includeShadowRoots: true});
   const element = wrapper.querySelector('#theelement');
   return {wrapper: wrapper, element: element};
 }
diff --git a/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-basic.tentative.html b/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-basic.tentative.html
index aaca71b9580..6e3c16a9d82 100644
--- a/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-basic.tentative.html
+++ b/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-basic.tentative.html
@@ -39,7 +39,7 @@ test(() => {
       </template>
       <div id="c1" slot="slot1"></div>
     </div>
-    `, {allowShadowRoot: true});
+    `, {includeShadowRoots: true});
   const host = div.querySelector('#host');
   const c1 = host.querySelector('#c1');
   assert_true(!!c1);
@@ -58,7 +58,7 @@ test(() => {
       <template shadowroot="invalid">
       </template>
     </div>
-    `, {allowShadowRoot: true});
+    `, {includeShadowRoots: true});
   const host = div.querySelector('#host');
   assert_equals(host.shadowRoot, null, "Shadow root was found");
   const tmpl = host.querySelector('template');
@@ -74,7 +74,7 @@ test(() => {
       <template shadowroot="closed">
       </template>
     </div>
-    `, {allowShadowRoot: true});
+    `, {includeShadowRoots: true});
   const host = div.querySelector('#host');
   assert_equals(host.shadowRoot, null, "Closed shadow root");
   assert_equals(host.querySelector('template'), null, "No template - converted to shadow root");
@@ -87,7 +87,7 @@ test(() => {
       <template shadowroot="open">
         <slot id="s1" name="slot1"></slot>
     </div>
-    `, {allowShadowRoot: true});
+    `, {includeShadowRoots: true});
   const host = div.querySelector('#host');
   assert_equals(host.querySelector('#s1'), null, "Should be inside shadow root");
   assert_equals(host.querySelector('template'), null, "No leftover template node");
@@ -103,7 +103,7 @@ test(() => {
       <template shadowroot="open" shadowrootdelegatesfocus>
       </template>
     </div>
-    `, {allowShadowRoot: true});
+    `, {includeShadowRoots: true});
   var host = div.querySelector('#host');
   assert_true(!!host.shadowRoot,"No shadow root found");
   assert_true(host.shadowRoot.delegatesFocus,"delegatesFocus should be true");
@@ -112,7 +112,7 @@ test(() => {
       <template shadowroot="open">
       </template>
     </div>
-    `, {allowShadowRoot: true});
+    `, {includeShadowRoots: true});
   host = div.querySelector('#host');
   assert_true(!!host.shadowRoot,"No shadow root found");
   assert_false(host.shadowRoot.delegatesFocus,"delegatesFocus should be false without the shadowrootdelegatesfocus attribute");
diff --git a/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-opt-in.tentative.html b/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-opt-in.tentative.html
index eb87fc95e71..2d6bf5f3f2d 100644
--- a/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-opt-in.tentative.html
+++ b/tests/wpt/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-opt-in.tentative.html
@@ -68,9 +68,9 @@ test(() => {
   const div = document.createElement('div');
   div.setInnerHTML(content);
   assert_dsd(div,false);
-  div.setInnerHTML(content, {allowShadowRoot: false});
+  div.setInnerHTML(content, {includeShadowRoots: false});
   assert_dsd(div,false);
-  div.setInnerHTML(content, {allowShadowRoot: true});
+  div.setInnerHTML(content, {includeShadowRoots: true});
   assert_dsd(div,true);
 }, 'setInnerHTML on element');
 
@@ -79,7 +79,7 @@ test(() => {
   const div = document.createElement('div');
   div.innerHTML = templateContent;
   assert_dsd(div.querySelector('#tmpl').content,false);
-  div.setInnerHTML(templateContent, {allowShadowRoot: true});
+  div.setInnerHTML(templateContent, {includeShadowRoots: true});
   assert_dsd(div.querySelector('#tmpl').content,true);
 }, 'setInnerHTML on element, with nested template content');
 
@@ -87,7 +87,7 @@ test(() => {
   const temp = document.createElement('template');
   temp.innerHTML = content;
   assert_dsd(temp.content,false, 'innerHTML should not allow declarative shadow content');
-  temp.setInnerHTML(content, {allowShadowRoot: true});
+  temp.setInnerHTML(content, {includeShadowRoots: true});
   assert_dsd(temp.content,true, 'setInnerHTML should allow declarative shadow content if enabled');
 }, 'setInnerHTML on template');
 
@@ -96,7 +96,7 @@ test(() => {
   const temp = document.createElement('template');
   temp.innerHTML = templateContent;
   assert_dsd(temp.content.querySelector('#tmpl').content,false);
-  temp.setInnerHTML(templateContent, {allowShadowRoot: true});
+  temp.setInnerHTML(templateContent, {includeShadowRoots: true});
   assert_dsd(temp.content.querySelector('#tmpl').content,true);
 }, 'setInnerHTML on template, with nested template content');
 
@@ -105,7 +105,7 @@ test(() => {
   const shadow = div.attachShadow({mode: 'open'});
   shadow.innerHTML = content;
   assert_dsd(shadow,false);
-  shadow.setInnerHTML(content, {allowShadowRoot: true});
+  shadow.setInnerHTML(content, {includeShadowRoots: true});
   assert_dsd(shadow,true);
 }, 'setInnerHTML on shadowRoot');
 
@@ -113,9 +113,9 @@ test(() => {
   const parser = new DOMParser();
   let fragment = parser.parseFromString(content, 'text/html');
   assert_dsd(fragment.body,false);
-  fragment = parser.parseFromString(content, 'text/html', {allowShadowRoot: false});
+  fragment = parser.parseFromString(content, 'text/html', {includeShadowRoots: false});
   assert_dsd(fragment.body,false);
-  fragment = parser.parseFromString(content, 'text/html', {allowShadowRoot: true});
+  fragment = parser.parseFromString(content, 'text/html', {includeShadowRoots: true});
   assert_dsd(fragment.body,true);
 }, 'DOMParser');
 
@@ -123,7 +123,7 @@ test(() => {
   const doc = document.implementation.createHTMLDocument('');
   doc.body.innerHTML = content;
   assert_dsd(doc.body,false);
-  doc.body.setInnerHTML(content, {allowShadowRoot: true});
+  doc.body.setInnerHTML(content, {includeShadowRoots: true});
   assert_dsd(doc.body,true);
 }, 'createHTMLDocument with setInnerHTML');
 
diff --git a/tests/wpt/web-platform-tests/shadow-dom/declarative/setinnerhtml.tentative.html b/tests/wpt/web-platform-tests/shadow-dom/declarative/setinnerhtml.tentative.html
index 076fdac2b0d..c65bf04a06c 100644
--- a/tests/wpt/web-platform-tests/shadow-dom/declarative/setinnerhtml.tentative.html
+++ b/tests/wpt/web-platform-tests/shadow-dom/declarative/setinnerhtml.tentative.html
@@ -23,7 +23,7 @@ function testElementType(allowsShadowDom, elementType, applyToShadow) {
       document.body.appendChild(wrapper);
     }
     const html = `<${elementType}><template shadowroot="open"><slot></slot></template><span></span></${elementType}>`;
-    wrapper.setInnerHTML(html, {allowShadowRoot: true});
+    wrapper.setInnerHTML(html, {includeShadowRoots: true});
     if (allowsShadowDom) {
       // Retrieve shadow root
       assert_true(!!wrapper.firstElementChild.shadowRoot,'No shadow root found');
diff --git a/tests/wpt/web-platform-tests/uievents/interface/click-event.htm b/tests/wpt/web-platform-tests/uievents/interface/click-event.htm
index 2f9b483b94c..8542f98cb13 100644
--- a/tests/wpt/web-platform-tests/uievents/interface/click-event.htm
+++ b/tests/wpt/web-platform-tests/uievents/interface/click-event.htm
@@ -1,7 +1,8 @@
 <!doctype html>
 <html>
   <head>
-    <title>Click event is a MouseEvent</title>
+    <title>Click event is a PointerEvent</title>
+    <link rel="help" href="https://github.com/w3c/pointerevents/pull/317">
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
   </head>
@@ -10,10 +11,14 @@
     <div id="log"></div>
     <script type="text/javascript">
     var clicktarget = document.querySelector("#clicktarget");
-    var t = async_test("synthetic click event is a MouseEvent");
+    var t = async_test("synthetic click event is a PointerEvent");
     clicktarget.addEventListener('click', t.step_func(function (e) {
-      assert_equals(e.constructor, window.MouseEvent);
-      assert_true(e instanceof window.MouseEvent);
+      assert_equals(e.constructor, window.PointerEvent);
+      assert_true(e instanceof window.PointerEvent);
+      // Since this click is not generated by a pointing device, pointerId and
+      // pointerType must have default values (0 and empty string)
+      assert_equals(e.pointerId, 0);
+      assert_equals(e.pointerType, "");
       t.done();
     }));
     document.querySelector('#clicktarget').click();
diff --git a/tests/wpt/web-platform-tests/webcodecs/video-decoder.html b/tests/wpt/web-platform-tests/webcodecs/video-decoder.html
index f653ba03b09..ff48625dc8c 100644
--- a/tests/wpt/web-platform-tests/webcodecs/video-decoder.html
+++ b/tests/wpt/web-platform-tests/webcodecs/video-decoder.html
@@ -116,6 +116,39 @@ promise_test(async t => {
   assert_equals(numOutputs, 1, "outputs");
 }, 'Decode VP9');
 
+promise_test(async t => {
+  let buffer = await vp9.buffer();
+
+  let decoder = new VideoDecoder({
+    output(frame) {
+      t.step(() => {
+        assert_unreached("reset() should prevent this output from arriving");
+      });
+    },
+    error(e) {
+      t.step(() => { throw e; });
+    }
+  });
+
+  decoder.configure({codec: vp9.codec});
+
+  decoder.decode(new EncodedVideoChunk({
+    type:'key',
+    timestamp:0,
+    data: view(buffer, vp9.frames[0])
+  }));
+
+  let flushPromise = decoder.flush();
+
+  decoder.reset()
+
+  assert_equals(decoder.decodeQueueSize, 0);
+
+  await promise_rejects_exactly(t, undefined, flushPromise);
+
+  endAfterEventLoopTurn();
+}, 'Verify reset() suppresses output and rejects flush');
+
 promise_test(t => {
   let decoder = new VideoDecoder(getDefaultCodecInit(t));