diff --git a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
index 947e223fb28..3b874fc1748 100644
--- a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
@@ -34,3 +34,6 @@
   [Revoke blob URL after creating Request, will fetch]
     expected: FAIL
 
+  [Revoke blob URL after calling fetch, fetch should succeed]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 84425b4f48e..f1965bb869b 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -19627,9 +19627,9 @@
      {}
     ]
    ],
-   "web-share/share-image-manual.https.html": [
+   "web-share/share-image-manual.tentative.https.html": [
     [
-     "web-share/share-image-manual.https.html",
+     "web-share/share-image-manual.tentative.https.html",
      {}
     ]
    ],
@@ -165739,6 +165739,18 @@
      {}
     ]
    ],
+   "css/css-values/percentage-rem-low.html": [
+    [
+     "css/css-values/percentage-rem-low.html",
+     [
+      [
+       "/css/reference/ref-filled-green-100px-square-only.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-values/q-unit-case-insensitivity-001.html": [
     [
      "css/css-values/q-unit-case-insensitivity-001.html",
@@ -309677,6 +309689,12 @@
      }
     ]
    ],
+   "compat/webkit-box-ignore-box-pack.html": [
+    [
+     "compat/webkit-box-ignore-box-pack.html",
+     {}
+    ]
+   ],
    "compat/webkit-box-removing-triggering-anonymous-merge.html": [
     [
      "compat/webkit-box-removing-triggering-anonymous-merge.html",
@@ -333019,6 +333037,14 @@
      {}
     ]
    ],
+   "css/selectors/focus-visible-011.html": [
+    [
+     "css/selectors/focus-visible-011.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
    "css/selectors/focus-within-009.html": [
     [
      "css/selectors/focus-within-009.html",
@@ -369575,6 +369601,14 @@
      {}
     ]
    ],
+   "media-source/mediasource-replay.html": [
+    [
+     "media-source/mediasource-replay.html",
+     {
+      "timeout": "long"
+     }
+    ]
+   ],
    "media-source/mediasource-seek-beyond-duration.html": [
     [
      "media-source/mediasource-seek-beyond-duration.html",
@@ -462389,7 +462423,7 @@
    "support"
   ],
   "README.md": [
-   "f728d502e17783c92114c904597eb3cc9b8c473a",
+   "320176c40ce4d4fc3bfdbd6a637c87e59143cb20",
    "support"
   ],
   "WebCryptoAPI/META.yml": [
@@ -468048,6 +468082,10 @@
    "06e728342cdb63a72b420423b40b6e32ae3e2162",
    "reftest"
   ],
+  "compat/webkit-box-ignore-box-pack.html": [
+   "80b52fbf1fe13a7c9ec5288f301194e40a381430",
+   "testharness"
+  ],
   "compat/webkit-box-removing-triggering-anonymous-merge.html": [
    "8506425548b6ff97491e388dc1a1f3830aa790fc",
    "testharness"
@@ -606872,6 +606910,10 @@
    "d7dd4edb5880e9162a702e3c1ce0a5540dc42679",
    "testharness"
   ],
+  "css/css-values/percentage-rem-low.html": [
+   "d06e7522a68e08f2b70cf9ccd71517bbf582b112",
+   "reftest"
+  ],
   "css/css-values/q-unit-case-insensitivity-001.html": [
    "b4a08aa117952c6f92e2aec6f57843b46a460104",
    "reftest"
@@ -617940,6 +617982,10 @@
    "eb01204b29c8e30b651b083459c01983b99dd70d",
    "testharness"
   ],
+  "css/selectors/focus-visible-011.html": [
+   "f95458fc4d3e4a538ecf8788b87528a9a138db5c",
+   "testharness"
+  ],
   "css/selectors/focus-within-001-ref.html": [
    "2913775a2204eb173ba45251a84ab2c01cda35bc",
    "support"
@@ -619817,7 +619863,7 @@
    "support"
   ],
   "css/support/interpolation-testcommon.js": [
-   "24c47e136c8d98603238a09dbb64bd79cd6751d2",
+   "9e63b02cb703d44e909c0c525f3bd56708477dda",
    "support"
   ],
   "css/support/parsing-testcommon.js": [
@@ -660689,7 +660735,7 @@
    "support"
   ],
   "interfaces/media-capabilities.idl": [
-   "ef4582d9c8c7c1d970cf399e9a9287dae8ba4fab",
+   "e067fdc746dd85161fb8e0e7e8f254a3d3d0f5f9",
    "support"
   ],
   "interfaces/media-playback-quality.idl": [
@@ -660913,7 +660959,7 @@
    "support"
   ],
   "interfaces/web-nfc.idl": [
-   "25354795b259f48b841ac7d7811c2fd1c31600d0",
+   "b917d5e2c11c5b34344638e2d0a2c2526c76137b",
    "support"
   ],
   "interfaces/web-share.idl": [
@@ -663440,6 +663486,10 @@
    "0388565329ff0d734785715a7b7d720c53b3feaa",
    "testharness"
   ],
+  "media-source/mediasource-replay.html": [
+   "05a8c0a918ab94bc1d4303b85ef3500e3cea9ddb",
+   "testharness"
+  ],
   "media-source/mediasource-seek-beyond-duration.html": [
    "8b07c9f80172c14bcda78e3bf5ba9a7a4be3006c",
    "testharness"
@@ -712176,7 +712226,7 @@
    "c3941bb4065b28c7f8fd4f615b8ec595ea5281a7",
    "manual"
   ],
-  "web-share/share-image-manual.https.html": [
+  "web-share/share-image-manual.tentative.https.html": [
    "48ea4c378c194691b78d1b365999408322345a37",
    "manual"
   ],
diff --git a/tests/wpt/metadata/css/CSS2/linebox/inline-negative-margin-001.html.ini b/tests/wpt/metadata/css/CSS2/linebox/inline-negative-margin-001.html.ini
index 94a3570d26b..9f60026f6d9 100644
--- a/tests/wpt/metadata/css/CSS2/linebox/inline-negative-margin-001.html.ini
+++ b/tests/wpt/metadata/css/CSS2/linebox/inline-negative-margin-001.html.ini
@@ -5,9 +5,9 @@
   [[data-expected-height\] 7]
     expected: FAIL
 
-  [[data-expected-height\] 3]
+  [[data-expected-height\] 1]
     expected: FAIL
 
-  [[data-expected-height\] 4]
+  [[data-expected-height\] 2]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/css/compositing/mix-blend-mode/mix-blend-mode-animation.html.ini b/tests/wpt/metadata/css/compositing/mix-blend-mode/mix-blend-mode-animation.html.ini
new file mode 100644
index 00000000000..5496474410b
--- /dev/null
+++ b/tests/wpt/metadata/css/compositing/mix-blend-mode/mix-blend-mode-animation.html.ini
@@ -0,0 +1,2 @@
+[mix-blend-mode-animation.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-transforms/animation/perspective-interpolation.html.ini b/tests/wpt/metadata/css/css-transforms/animation/perspective-interpolation.html.ini
index 03f2f3fe9d1..c511d92d674 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/perspective-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/perspective-interpolation.html.ini
@@ -1,5 +1,4 @@
 [perspective-interpolation.html]
-  expected: CRASH
   [ perspective interpolation]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/encoding/single-byte-decoder.html.ini b/tests/wpt/metadata/encoding/single-byte-decoder.html.ini
index 939a36eb9d9..3d135f3bd66 100644
--- a/tests/wpt/metadata/encoding/single-byte-decoder.html.ini
+++ b/tests/wpt/metadata/encoding/single-byte-decoder.html.ini
@@ -2,6 +2,7 @@
   type: testharness
 
 [single-byte-decoder.html?document]
+  expected: TIMEOUT
   [ISO-8859-4: iso_8859-4:1988 (document.characterSet and document.inputEncoding)]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/content-type/response.window.js.ini b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
index 76fd3580131..25458f2a5c9 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 +312,21 @@
   [<iframe>: separate response Content-Type: */* text/html]
     expected: FAIL
 
-  [<iframe>: separate 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 */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;x=" text/plain]
+  [<iframe>: combined response Content-Type: */* text/html]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
+  [<iframe>: combined response Content-Type: text/html */*]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;x=" text/plain]
+  [<iframe>: separate response Content-Type: text/plain */*]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
+  [<iframe>: combined response Content-Type: text/html;" \\" 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..c7413d589dc 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 +56,9 @@
   [separate text/javascript x/x]
     expected: FAIL
 
-  [separate text/javascript error]
+  [separate text/javascript;charset=windows-1252 error text/javascript]
+    expected: FAIL
+
+  [separate text/javascript;charset=windows-1252  text/javascript]
     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 f9392e03143..536384f36e1 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,9 +11,6 @@
   [X-Content-Type-Options%3A%20nosniff%0C]
     expected: FAIL
 
-  [X-Content-Type-Options%3A%20%22nosniFF%22]
-    expected: FAIL
-
-  [X-Content-Type-Options%3A%20no%0D%0AX-Content-Type-Options%3A%20nosniff]
+  [X-Content-Type-Options%3A%20%2Cnosniff]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini b/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini
index f5fd1479f84..62068b05a2f 100644
--- a/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini
+++ b/tests/wpt/metadata/fetch/security/embedded-credentials.tentative.sub.html.ini
@@ -8,14 +8,8 @@
     expected: FAIL
 
   [Embedded credentials are treated as network errors in new windows.]
-    expected: TIMEOUT
-
-  [Embedded credentials matching the top-level are not treated as network errors for relative URLs.]
-    expected: TIMEOUT
-
-  [Embedded credentials matching the top-level are not treated as network errors for same-origin URLs.]
-    expected: TIMEOUT
-
-  [Embedded credentials matching the top-level are treated as network errors for cross-origin URLs.]
     expected: FAIL
 
+  [Embedded credentials matching the top-level are treated as network errors for cross-origin URLs.]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
new file mode 100644
index 00000000000..dc2e45516de
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
@@ -0,0 +1,4 @@
+[traverse_the_history_5.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-location-interface/location-protocol-setter-non-broken.html.ini b/tests/wpt/metadata/html/browsers/history/the-location-interface/location-protocol-setter-non-broken.html.ini
index 3a39a215f25..b23214f6f39 100644
--- a/tests/wpt/metadata/html/browsers/history/the-location-interface/location-protocol-setter-non-broken.html.ini
+++ b/tests/wpt/metadata/html/browsers/history/the-location-interface/location-protocol-setter-non-broken.html.ini
@@ -1,23 +1,8 @@
 [location-protocol-setter-non-broken.html]
   type: testharness
-  [Set data URL frame location.protocol to x]
-    expected: FAIL
-
-  [Set data URL frame location.protocol to data]
-    expected: FAIL
-
-  [Set data URL frame location.protocol to file]
-    expected: FAIL
-
-  [Set data URL frame location.protocol to ftp]
-    expected: FAIL
-
   [Set data URL frame location.protocol to gopher]
     expected: FAIL
 
-  [Set data URL frame location.protocol to http+x]
-    expected: FAIL
-
   [Set HTTP URL frame location.protocol to gopher]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini b/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
index fd369192a02..c757b400205 100644
--- a/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
+++ b/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
@@ -1,5 +1,5 @@
 [embedded-opener-remove-frame.html]
-  expected: TIMEOUT
+  expected: CRASH
   [opener and "removed" embedded documents]
     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-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 9df1ac56f2a..3f7e3e9544f 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
@@ -1,6 +1,5 @@
 [iframe_sandbox_popups_nonescaping-1.html]
   type: testharness
-  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: NOTRUN
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
index e440b1e38c6..dc856a3d5a3 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html.ini
@@ -1,6 +1,5 @@
 [iframe_sandbox_popups_nonescaping-3.html]
   type: testharness
-  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: NOTRUN
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini
index 47a7bbb7975..dce74c6dd71 100644
--- 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
@@ -1,5 +1,5 @@
 [form-double-submit.html]
   expected: ERROR
   [default submit action should supersede onclick submit()]
-    expected: TIMEOUT
+    expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-submission-algorithm.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-submission-algorithm.html.ini
index 127392316de..702af61a3c4 100644
--- a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-submission-algorithm.html.ini
+++ b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-submission-algorithm.html.ini
@@ -1,7 +1,11 @@
 [form-submission-algorithm.html]
+  expected: TIMEOUT
   [If form's firing submission events is true, then return; 'submit' event]
     expected: FAIL
 
   [If form's firing submission events is true, then return; 'invalid' event]
     expected: FAIL
 
+  [Cannot navigate (after constructing the entry list)]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini b/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini
new file mode 100644
index 00000000000..9e522297c94
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini
@@ -0,0 +1,7 @@
+[toggleEvent.html]
+  [Calling open twice on 'details' fires only one toggle event]
+    expected: FAIL
+
+  [Setting open=true to opened 'details' element should not fire a toggle event at the 'details' element]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
index 66bd350083b..a56bad443a2 100644
--- a/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
@@ -1,4 +1,5 @@
 [realtimeanalyser-fft-scaling.html]
+  expected: TIMEOUT
   [X 2048-point FFT peak position is not equal to 64. Got 0.]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/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/metadata/workers/semantics/multiple-workers/005.html.ini b/tests/wpt/metadata/workers/semantics/multiple-workers/005.html.ini
index 268949ced5c..f584fce5df1 100644
--- a/tests/wpt/metadata/workers/semantics/multiple-workers/005.html.ini
+++ b/tests/wpt/metadata/workers/semantics/multiple-workers/005.html.ini
@@ -1,4 +1,5 @@
 [005.html]
+  expected: ERROR
   [dedicated worker in shared worker in dedicated worker]
     expected: FAIL
 
diff --git a/tests/wpt/web-platform-tests/README.md b/tests/wpt/web-platform-tests/README.md
index f728d502e17..320176c40ce 100644
--- a/tests/wpt/web-platform-tests/README.md
+++ b/tests/wpt/web-platform-tests/README.md
@@ -251,27 +251,3 @@ If you spot an issue with a test and are not comfortable providing a
 pull request per above to fix it, please
 [file a new issue](https://github.com/web-platform-tests/wpt/issues/new).
 Thank you!
-
-Lint tool
----------
-
-We have a lint tool for catching common mistakes in test files. You
-can run it manually by starting the `lint` executable from the root of
-your local web-platform-tests working directory like this:
-
-```
-./wpt lint
-```
-
-The lint tool is also run automatically for every submitted pull
-request, and reviewers will not merge branches with tests that have
-lint errors, so you must fix any errors the lint tool reports.
-
-In the unusual case of error reports for things essential to a
-certain test or that for other exceptional reasons shouldn't prevent
-a merge of a test, update and commit the `lint.whitelist` file in the
-web-platform-tests root directory to suppress the error reports.
-
-For more details, see the [lint-tool documentation][lint-tool].
-
-[lint-tool]: https://web-platform-tests.org/writing-tests/lint-tool.html
diff --git a/tests/wpt/web-platform-tests/compat/webkit-box-ignore-box-pack.html b/tests/wpt/web-platform-tests/compat/webkit-box-ignore-box-pack.html
new file mode 100644
index 00000000000..80b52fbf1fe
--- /dev/null
+++ b/tests/wpt/web-platform-tests/compat/webkit-box-ignore-box-pack.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+#outer {
+  display: -webkit-box;
+  -webkit-box-orient: vertical;
+  -webkit-box-pack: center;
+  width: 100px;
+  height: 100px;
+}
+#inner {
+  width: 100px;
+  height: 200px;
+}
+</style>
+<div id="outer">
+  <div id="inner"></div>
+</div>
+<script>
+  test(function() {
+    var child = document.getElementById("inner");
+    assert_greater_than(child.offsetTop, 0);
+  }, "Child should be positioned at y-offset greater than 0 if children exceed bounds of parent");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-values/percentage-rem-low.html b/tests/wpt/web-platform-tests/css/css-values/percentage-rem-low.html
new file mode 100644
index 00000000000..d06e7522a68
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-values/percentage-rem-low.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>REM value with :root set to low percentage</title>
+<link rel="author" title="Jon Ege Ronnenberg" href="mailto:jon.ronnenberg+wpt@gmail.com">
+<link rel="help" href="https://drafts.csswg.org/css-values/#rem">
+<link rel="help" href="https://drafts.csswg.org/css-fonts/#length-percentage-size-value">
+<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
+<meta name="assert" content="When :root font-size is 25%, a 25rem length must be 100px, if the browser default for :root font-size is 16px.">
+<style>
+  :root {
+     /* default is 16px in all desktop browsers */
+     /* the math for 100px is: 16px * 0.25 = 4px/rem -> 100px / 4px/rem = 25rem = 100px */
+    font-size: 25%;
+  }
+  .rem {
+    width: 25rem;
+    height: 25rem;
+    background-color: green;
+  }
+</style>
+<p style="font-size:initial;">Test passes if there is a filled green square.</p>
+<div class="rem"></div>
diff --git a/tests/wpt/web-platform-tests/css/selectors/focus-visible-011.html b/tests/wpt/web-platform-tests/css/selectors/focus-visible-011.html
new file mode 100644
index 00000000000..f95458fc4d3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/selectors/focus-visible-011.html
@@ -0,0 +1,58 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8" />
+  <title>CSS Test (Selectors): :focus-visible matches even if preventDefault() is called</title>
+  <link rel="author" title="Alice Boxhall" href="aboxhall@chromium.org" />
+  <link rel="help" href="https://drafts.csswg.org/selectors-4/#the-focus-visible-pseudo" />
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <script src="/resources/testdriver.js"></script>
+  <script src="/resources/testdriver-vendor.js"></script>
+  <style>
+    button {
+      border: 0;
+    }
+
+    #next:focus-visible {
+      outline: darkgreen auto 5px;
+    }
+
+    #next:focus:not(:focus-visible) {
+      background-color: tomato;
+      outline: 0;
+    }
+  </style>
+</head>
+<body>
+  This test checks that <code>:focus-visible</code> matches after a keyboard event,
+  even if the event handler calls preventDefault() on the event.
+  <ul id="instructions">
+    <li>Click "Click here and press right arrow.".</li>
+    <li>Press the right arrow key.</li>
+    <li>If "Focus moves here." has a red background, then the test result is FAILURE.
+        If it has a green outline, then the test result is SUCCESS.</li>
+  </ul>
+  <br />
+  <button id="start" tabindex="0">Click here and press right arrow.</button>
+  <button id="next" tabindex="-1">Focus moves here.</button>
+  <script>
+    start.addEventListener('keydown', (e) => {
+      next.focus();
+    });
+
+    async_test(async function(t) {
+      next.addEventListener("focus", t.step_func(() => {
+        assert_equals(getComputedStyle(next).outlineColor, "rgb(0, 100, 0)");
+        t.done()
+      }));
+
+      // \ue014 -> ARROW_RIGHT
+      test_driver.send_keys(start, "\ue014").catch(t.step_func(() => {
+        assert_true(false, "send_keys not implemented yet");
+        t.done();
+      }));
+    }, ":focus-visible matches even if preventDefault() is called");
+  </script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/support/interpolation-testcommon.js b/tests/wpt/web-platform-tests/css/support/interpolation-testcommon.js
index 24c47e136c8..9e63b02cb70 100644
--- a/tests/wpt/web-platform-tests/css/support/interpolation-testcommon.js
+++ b/tests/wpt/web-platform-tests/css/support/interpolation-testcommon.js
@@ -284,7 +284,7 @@
           comparisonFunction(
               getComputedStyle(target).getPropertyValue(property),
               expectedValue);
-        }, `${testText} at (${expectation.at}) should be [${sanitizeUrls(expectedValue)}]`);
+        }, `${testText} at (${expectation.at}) should be [${sanitizeUrls(expectation.expect)}]`);
       };
       return target;
     });
diff --git a/tests/wpt/web-platform-tests/interfaces/media-capabilities.idl b/tests/wpt/web-platform-tests/interfaces/media-capabilities.idl
index ef4582d9c8c..e067fdc746d 100644
--- a/tests/wpt/web-platform-tests/interfaces/media-capabilities.idl
+++ b/tests/wpt/web-platform-tests/interfaces/media-capabilities.idl
@@ -34,6 +34,27 @@ dictionary VideoConfiguration {
   required unsigned long long bitrate;
   required double framerate;
   boolean hasAlphaChannel;
+  HdrMetadataType hdrMetadataType;
+  ColorGamut colorGamut;
+  TransferFunction transferFunction;
+};
+
+enum HdrMetadataType {
+  "smpteSt2086",
+  "smpteSt2094-10",
+  "smpteSt2094-40"
+};
+
+enum ColorGamut {
+  "srgb",
+  "p3",
+  "rec2020"
+};
+
+enum TransferFunction {
+  "srgb",
+  "pq",
+  "hlg"
 };
 
 dictionary AudioConfiguration {
@@ -80,23 +101,3 @@ interface MediaCapabilities {
   [NewObject] Promise<MediaCapabilitiesDecodingInfo> decodingInfo(MediaDecodingConfiguration configuration);
   [NewObject] Promise<MediaCapabilitiesInfo> encodingInfo(MediaEncodingConfiguration configuration);
 };
-
-[Exposed=Window]
-interface ScreenLuminance {
-  readonly attribute double min;
-  readonly attribute double max;
-  readonly attribute double maxAverage;
-};
-
-enum ScreenColorGamut {
-  "srgb",
-  "p3",
-  "rec2020",
-};
-
-partial interface Screen {
-  readonly attribute ScreenColorGamut colorGamut;
-  readonly attribute ScreenLuminance? luminance;
-
-  attribute EventHandler onchange;
-};
diff --git a/tests/wpt/web-platform-tests/interfaces/web-nfc.idl b/tests/wpt/web-platform-tests/interfaces/web-nfc.idl
index 25354795b25..b917d5e2c11 100644
--- a/tests/wpt/web-platform-tests/interfaces/web-nfc.idl
+++ b/tests/wpt/web-platform-tests/interfaces/web-nfc.idl
@@ -53,9 +53,8 @@ interface NDEFReader : EventTarget {
   constructor();
 
   attribute EventHandler onreading;
-  attribute EventHandler onerror;
 
-  void scan(optional NDEFScanOptions options={});
+  Promise<void> scan(optional NDEFScanOptions options={});
 };
 
 [SecureContext, Exposed=Window]
@@ -71,17 +70,6 @@ dictionary NDEFReadingEventInit : EventInit {
   required NDEFMessageInit message;
 };
 
-[SecureContext, Exposed=Window]
-interface NDEFErrorEvent : Event {
-  constructor(DOMString type, NDEFErrorEventInit errorEventInitDict);
-
-  readonly attribute DOMException error;
-};
-
-dictionary NDEFErrorEventInit : EventInit {
-  required DOMException error;
-};
-
 dictionary NDEFPushOptions {
   NDEFPushTarget target = "any";
   unrestricted double timeout = Infinity;
diff --git a/tests/wpt/web-platform-tests/media-source/mediasource-replay.html b/tests/wpt/web-platform-tests/media-source/mediasource-replay.html
new file mode 100644
index 00000000000..05a8c0a918a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/media-source/mediasource-replay.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<!-- Copyright © 2019 Igalia S.L -->
+<html>
+<head>
+    <title>MediaSource replay test case.</title>
+    <meta name="timeout" content="long">
+    <meta charset="utf-8">
+    <link rel="author" title="Alicia Boya García" href="mailto:aboya@igalia.com">
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="mediasource-util.js"></script>
+</head>
+<body>
+<div id="log"></div>
+<script>
+    mediasource_testafterdataloaded(function (test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData) {
+        mediaElement.addEventListener('error', test.unreached_func("Unexpected event 'error'"));
+
+        test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer');
+
+        sourceBuffer.appendBuffer(mediaData);
+
+        test.waitForExpectedEvents(function () {
+            mediaSource.endOfStream();
+
+            // Start playing near the end.
+            mediaElement.currentTime = 6.2;
+            mediaElement.play();
+            test.expectEvent(mediaElement, 'ended', 'mediaElement');
+        });
+
+        test.waitForExpectedEvents(function () {
+            mediaElement.play();
+            assert_equals(mediaElement.currentTime, 0, "currentTime");
+            // If currentTime is able to advance, the player did not get stuck and it's a pass.
+            test.waitForCurrentTimeChange(mediaElement, test.step_func_done());
+        });
+    }, "Test replaying video after 'ended'");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/web-share/share-image-manual.https.html b/tests/wpt/web-platform-tests/web-share/share-image-manual.tentative.https.html
similarity index 100%
rename from tests/wpt/web-platform-tests/web-share/share-image-manual.https.html
rename to tests/wpt/web-platform-tests/web-share/share-image-manual.tentative.https.html
diff --git a/tests/wpt/webgl/meta/conformance2/rendering/canvas-resizing-with-pbo-bound.html.ini b/tests/wpt/webgl/meta/conformance2/rendering/canvas-resizing-with-pbo-bound.html.ini
index 0e7c48f1481..436b6e96fe7 100644
--- a/tests/wpt/webgl/meta/conformance2/rendering/canvas-resizing-with-pbo-bound.html.ini
+++ b/tests/wpt/webgl/meta/conformance2/rendering/canvas-resizing-with-pbo-bound.html.ini
@@ -1,4 +1,5 @@
 [canvas-resizing-with-pbo-bound.html]
+  expected: TIMEOUT
   [WebGL test #0: Unable to fetch WebGL rendering context for Canvas]
     expected: FAIL