diff --git a/tests/wpt/meta/MANIFEST.json b/tests/wpt/meta/MANIFEST.json
index e50b0df3481..f481afa1bf9 100644
--- a/tests/wpt/meta/MANIFEST.json
+++ b/tests/wpt/meta/MANIFEST.json
@@ -2525,8 +2525,8 @@
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        {}
@@ -4284,6 +4284,15 @@
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+      "1f2360a1943fb470914ec1e2e106ebf14b14ef37",
+      [
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@@ -5636,6 +5645,15 @@
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+       [
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-      "45261e7ca7e01dd056df13cbc8a6816ba7ba9b22",
+      "3b2c07cc3bfea1bf09a4c170f08e10c5be495848",
       [
        "streams/writable-streams/close.any.html",
        {
@@ -813658,7 +815178,7 @@
      ]
     ],
     "should-sink-type-mismatch-violation-be-blocked-by-csp-001.html": [
-     "add14466e57d6c7ead8690a7f19d89565eaca7e6",
+     "13fd3549953a5b0dc8b52e7ce1619d3ef216cb75",
      [
       null,
       {
@@ -813694,7 +815214,7 @@
      ]
     ],
     "should-trusted-type-policy-creation-be-blocked-by-csp-002.html": [
-     "fc1906a7c99fdb82e9c2e6a7870471cf6ad3f6f0",
+     "4bfbb6514a01bd583bbac001b4b5cd27e9ef0e02",
      [
       null,
       {
@@ -813793,7 +815313,7 @@
      ]
     ],
     "trusted-types-navigation.html": [
-     "74a25fa3480c3779da87705812e26a3043edd2bc",
+     "f29405651f11a47d398cde6d01f57ce71afd97b3",
      [
       null,
       {}
@@ -813834,6 +815354,20 @@
       {}
      ]
     ],
+    "trusted-types-reporting-clipping-of-sample.html": [
+     "1e4a8470ad1f5b001f4bcd862b74b579758b59cc",
+     [
+      null,
+      {}
+     ]
+    ],
+    "trusted-types-reporting-clipping-of-sample.tentative.html": [
+     "203cff8611086c9642bc5d690c617486b5372dae",
+     [
+      null,
+      {}
+     ]
+    ],
     "trusted-types-reporting-for-DOMParser-parseFromString.html": [
      "0dccd3bac68d7a141eb10f58448960219dc5acd8",
      [
@@ -830023,7 +831557,7 @@
        ]
       ],
       "finishing-an-animation.html": [
-       "fbf6558f781e624ed9ea7c9470e78d75d0854cb2",
+       "d4f36becea496af2430c4a7a459622579f60ab4c",
        [
         null,
         {}
@@ -832254,7 +833788,7 @@
        ]
       ],
       "audiocontext-sinkid-constructor.https.html": [
-       "d2dc54aee6a7f93e846244e1f3ab88c3774cf917",
+       "6e1bdb22d52f3da2f57c10103291575af2695faa",
        [
         null,
         {}
@@ -845245,7 +846779,7 @@
       ]
      ],
      "add.https.any.js": [
-      "ad1df74b65aa34b672afd1480c2abc29d48df03f",
+      "be82df1dc280bbf1a2e880f3adb7a6a8aef60c16",
       [
        "webnn/conformance_tests/add.https.any.html?cpu",
        {
@@ -847060,7 +848594,7 @@
       ]
      ],
      "dequantizeLinear.https.any.js": [
-      "310dd03fcb5e46c9209951f6243e988f85c8e810",
+      "35c15055661d4cde7033faca57d6436795f02fc8",
       [
        "webnn/conformance_tests/dequantizeLinear.https.any.html?cpu",
        {
@@ -847171,7 +848705,7 @@
       ]
      ],
      "div.https.any.js": [
-      "1fb80fe17ed82cdfa65b98817b80f40b3b67a75b",
+      "1914c4829c47a622881d84f69f6c445cc1a37da4",
       [
        "webnn/conformance_tests/div.https.any.html?cpu",
        {
@@ -850038,6 +851572,117 @@
        }
       ]
      ],
+     "inputs-with-special-names.https.any.js": [
+      "2921cf1fe5ebfd33e504e81bf5367f4940a3ac3c",
+      [
+       "webnn/conformance_tests/inputs-with-special-names.https.any.html?cpu",
+       {
+        "script_metadata": [
+         [
+          "title",
+          "test input with special character names"
+         ],
+         [
+          "global",
+          "window"
+         ],
+         [
+          "variant",
+          "?cpu"
+         ],
+         [
+          "variant",
+          "?gpu"
+         ],
+         [
+          "variant",
+          "?npu"
+         ],
+         [
+          "script",
+          "../resources/utils.js"
+         ],
+         [
+          "timeout",
+          "long"
+         ]
+        ],
+        "timeout": "long"
+       }
+      ],
+      [
+       "webnn/conformance_tests/inputs-with-special-names.https.any.html?gpu",
+       {
+        "script_metadata": [
+         [
+          "title",
+          "test input with special character names"
+         ],
+         [
+          "global",
+          "window"
+         ],
+         [
+          "variant",
+          "?cpu"
+         ],
+         [
+          "variant",
+          "?gpu"
+         ],
+         [
+          "variant",
+          "?npu"
+         ],
+         [
+          "script",
+          "../resources/utils.js"
+         ],
+         [
+          "timeout",
+          "long"
+         ]
+        ],
+        "timeout": "long"
+       }
+      ],
+      [
+       "webnn/conformance_tests/inputs-with-special-names.https.any.html?npu",
+       {
+        "script_metadata": [
+         [
+          "title",
+          "test input with special character names"
+         ],
+         [
+          "global",
+          "window"
+         ],
+         [
+          "variant",
+          "?cpu"
+         ],
+         [
+          "variant",
+          "?gpu"
+         ],
+         [
+          "variant",
+          "?npu"
+         ],
+         [
+          "script",
+          "../resources/utils.js"
+         ],
+         [
+          "timeout",
+          "long"
+         ]
+        ],
+        "timeout": "long"
+       }
+      ]
+     ],
      "instance_normalization.https.any.js": [
       "2766f914b3dd66ef5f8120642bfaf30dc3a052fa",
       [
@@ -851593,7 +853238,7 @@
       ]
      ],
      "max.https.any.js": [
-      "9685572bcd7bfd02bae1bab4c9adb11af045d017",
+      "2da14e1545a5c4c44fe8c94e4688957b1f257ca9",
       [
        "webnn/conformance_tests/max.https.any.html?cpu",
        {
@@ -851704,7 +853349,7 @@
       ]
      ],
      "min.https.any.js": [
-      "e843b003a0b17804fc9dd4aacd5be260a354a47b",
+      "5e324e412bf291b9973c6a5fb9594015a911c899",
       [
        "webnn/conformance_tests/min.https.any.html?cpu",
        {
@@ -851815,7 +853460,7 @@
       ]
      ],
      "mul.https.any.js": [
-      "e64a70d099a45489d14f0cf8b0873cc3801b2042",
+      "277d3e2fa0d5e1005781ba400d4870c6459e6f6e",
       [
        "webnn/conformance_tests/mul.https.any.html?cpu",
        {
@@ -852805,7 +854450,7 @@
       ]
      ],
      "pow.https.any.js": [
-      "ae3524f3376d12aaf3d70a4a39704a91db3ffc90",
+      "f51feca4eacae6a0a36bd6125e78bb889aac011d",
       [
        "webnn/conformance_tests/pow.https.any.html?cpu",
        {
@@ -853027,7 +854672,7 @@
       ]
      ],
      "quantizeLinear.https.any.js": [
-      "5c4989fdf31f2c94d028cd8a74fe935c49f09986",
+      "0e9fe5e6b4a9f610b62ce3fae9add857fa8cba37",
       [
        "webnn/conformance_tests/quantizeLinear.https.any.html?cpu",
        {
@@ -856822,7 +858467,7 @@
       ]
      ],
      "sub.https.any.js": [
-      "565f532c8f06f7e2a1e7eaea4dfd27954e98465a",
+      "2f2fadf7282185eb92cbd7961ab3f1e9d35fd5a3",
       [
        "webnn/conformance_tests/sub.https.any.html?cpu",
        {
@@ -874989,6 +876634,13 @@
       {}
      ]
     ],
+    "outbound-rtp-encoding-index.https.html": [
+     "825fe6949c3d9b040763c51c088b75162a03b481",
+     [
+      null,
+      {}
+     ]
+    ],
     "promises-call.html": [
      "ee64b463ee22aca1b68e6875e124425c9e43743f",
      [
@@ -922168,7 +923820,7 @@
          ]
         ],
         "response_completed_cached.py": [
-         "3f5cbad1047df2bca9038b7ce069ced79c0a2473",
+         "2c7ea02d6011e30ff4ef19050b0cf88681eea653",
          [
           null,
           {}
@@ -922184,7 +923836,7 @@
          ]
         ],
         "response_started_cached.py": [
-         "57db04a3afe7ccc09dc771ad11e5d896c4535f6a",
+         "db34035fca15d5b7c2749c316ed6eb8905cabbe7",
          [
           null,
           {}
diff --git a/tests/wpt/meta/css/CSS2/linebox/animations/line-height-interpolation.html.ini b/tests/wpt/meta/css/CSS2/linebox/animations/line-height-interpolation.html.ini
index 7d12899961b..436384ff8d4 100644
--- a/tests/wpt/meta/css/CSS2/linebox/animations/line-height-interpolation.html.ini
+++ b/tests/wpt/meta/css/CSS2/linebox/animations/line-height-interpolation.html.ini
@@ -412,3 +412,36 @@
 
   [CSS Transitions: property <line-height> from [14q\] to [normal\] at (0.3) should be [14q\]]
     expected: FAIL
+
+  [Web Animations: property <line-height> from [1\] to [200%\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [1\] to [200%\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [1\] to [200%\] at (0.3) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [1\] to [200%\] at (0.5) should be [200%\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [1\] to [200%\] at (0.6) should be [200%\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [1\] to [200%\] at (1) should be [200%\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [1\] to [200%\] at (1.5) should be [200%\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [100%\] to [200%\] at (0) should be [100%\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [100%\] to [200%\] at (0.3) should be [130%\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [100%\] to [200%\] at (0.6) should be [160%\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [100%\] to [200%\] at (1) should be [200%\]]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/compositing/mix-blend-mode/mix-blend-mode-video-sibling.html.ini b/tests/wpt/meta/css/compositing/mix-blend-mode/mix-blend-mode-video-sibling.html.ini
new file mode 100644
index 00000000000..55551102b45
--- /dev/null
+++ b/tests/wpt/meta/css/compositing/mix-blend-mode/mix-blend-mode-video-sibling.html.ini
@@ -0,0 +1,2 @@
+[mix-blend-mode-video-sibling.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-interpolation.html.ini b/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-interpolation.html.ini
new file mode 100644
index 00000000000..7ef6ee39ddf
--- /dev/null
+++ b/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-interpolation.html.ini
@@ -0,0 +1,1344 @@
+[corner-shape-interpolation.html]
+  [CSS Transitions: property <corner-top-left-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [round\] to [bevel\] at (-0.3) should be [superellipse(1.4)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [round\] to [bevel\] at (0) should be [round\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [round\] to [bevel\] at (0.6) should be [superellipse(0.36)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [round\] to [bevel\] at (1) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [round\] to [bevel\] at (1.5) should be [superellipse(-0.46)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (-0.3) should be [superellipse(1.91)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0) should be [round\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (0.6) should be [superellipse(-0.18)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [initial\] to [scoop\] at (1.5) should be [superellipse(-2.95)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [inherit\] to [squircle\] at (-0.3) should be [superellipse(-0.45)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [inherit\] to [squircle\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [inherit\] to [squircle\] at (0.6) should be [superellipse(0.98)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [inherit\] to [squircle\] at (1) should be [squircle\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [inherit\] to [squircle\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [inherit\] to [squircle\] at (-0.3) should be [superellipse(-0.45)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [inherit\] to [squircle\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [inherit\] to [squircle\] at (0.6) should be [superellipse(0.98)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [inherit\] to [squircle\] at (1) should be [squircle\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [inherit\] to [squircle\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [inherit\] to [squircle\] at (-0.3) should be [superellipse(-0.45)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [inherit\] to [squircle\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [inherit\] to [squircle\] at (0.6) should be [superellipse(0.98)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [inherit\] to [squircle\] at (1) should be [squircle\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [inherit\] to [squircle\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [inherit\] to [squircle\] at (-0.3) should be [superellipse(-0.45)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [inherit\] to [squircle\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [inherit\] to [squircle\] at (0.6) should be [superellipse(0.98)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [inherit\] to [squircle\] at (1) should be [squircle\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [inherit\] to [squircle\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [inherit\] to [square\] at (-0.3) should be [superellipse(-0.69)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [inherit\] to [square\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [inherit\] to [square\] at (0.6) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [inherit\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [inherit\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [inherit\] to [square\] at (-0.3) should be [superellipse(-0.69)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [inherit\] to [square\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [inherit\] to [square\] at (0.6) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [inherit\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [inherit\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [inherit\] to [square\] at (-0.3) should be [superellipse(-0.69)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [inherit\] to [square\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [inherit\] to [square\] at (0.6) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [inherit\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [inherit\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [inherit\] to [square\] at (-0.3) should be [superellipse(-0.69)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [inherit\] to [square\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [inherit\] to [square\] at (0.6) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [inherit\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [inherit\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (-0.3) should be [superellipse(0.27)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (0.6) should be [superellipse(-0.56)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (1.5) should be [superellipse(-1.72)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (-0.3) should be [superellipse(0.27)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (0.6) should be [superellipse(-0.56)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (1.5) should be [superellipse(-1.72)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (-0.3) should be [superellipse(0.27)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (0.6) should be [superellipse(-0.56)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (1.5) should be [superellipse(-1.72)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (-0.3) should be [superellipse(0.27)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (0.6) should be [superellipse(-0.56)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (1) should be [scoop\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [inherit\] to [scoop\] at (1.5) should be [superellipse(-1.72)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (-0.3) should be [superellipse(0.69)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (0.6) should be [superellipse(-1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (1) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (1.5) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (-0.3) should be [superellipse(0.69)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (0.6) should be [superellipse(-1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (1) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (1.5) should be [notch\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (-0.3) should be [superellipse(0.69)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (0.6) should be [superellipse(-1.64)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (1) should be [notch\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (1.5) should be [notch\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (-0.3) should be [superellipse(0.69)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (0) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (0.6) should be [superellipse(-1.64)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (1) should be [notch\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [inherit\] to [notch\] at (1.5) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (-0.3) should be [notch\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (0) should be [notch\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (0.5) should be [bevel\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (0.8) should be [superellipse(1.64)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (1) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [notch\] to [square\] at (1.5) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-top-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-right-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (-0.3) should be [square\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0) should be [superellipse(3)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.5) should be [superellipse(0.16)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (0.8) should be [superellipse(-0.9)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1) should be [superellipse(-2)\]]
+    expected: FAIL
+
+  [Web Animations: property <corner-bottom-left-shape> from [superellipse(3)\] to [superellipse(-2)\] at (1.1) should be [superellipse(-2.99)\]]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-render-fuzzy.html.ini b/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-render-fuzzy.html.ini
index 19f68f62748..86a34e36ccb 100644
--- a/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-render-fuzzy.html.ini
+++ b/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-render-fuzzy.html.ini
@@ -45,3 +45,30 @@
 
 [corner-shape-render-fuzzy.html?corner-top-left-shape=bevel&border-radius=40px&border-width=10px]
   expected: FAIL
+
+[corner-shape-render-fuzzy.html?corner-shape=superellipse(3)&border-radius=40px&box-shadow=10px 10px 0 10px black]
+  expected: FAIL
+
+[corner-shape-render-fuzzy.html?corner-shape=superellipse(-7)&border-radius=20%&border-width=20px]
+  expected: FAIL
+
+[corner-shape-render-fuzzy.html?corner-top-left-shape=superellipse(-4)&border-radius=40%]
+  expected: FAIL
+
+[corner-shape-render-fuzzy.html?border-radius=40%&corner-shape=notch&box-shadow=10px%2010px%200%2010px%20yellow]
+  expected: FAIL
+
+[corner-shape-render-fuzzy.html?corner-shape=superellipse(-2)&border-radius=20%&border-width=20px]
+  expected: FAIL
+
+[corner-shape-render-fuzzy.html?border-radius=30%&corner-shape=superellipse(-1.5)&box-shadow=10px%2010px%200%2010px%20black]
+  expected: FAIL
+
+[corner-shape-render-fuzzy.html?corner-shape=superellipse(5)&border-radius=20%&border-width=20px]
+  expected: FAIL
+
+[corner-shape-render-fuzzy.html?corner-top-left-shape=superellipse(2.5)&border-radius=20%&border-width=10px]
+  expected: FAIL
+
+[corner-shape-render-fuzzy.html?corner-shape=superellipse(0.8)&border-radius=40px&border-width=10px&border-left-color=purple]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-render-precise.html.ini b/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-render-precise.html.ini
index a3cc011438a..f215c29e3f7 100644
--- a/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-render-precise.html.ini
+++ b/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-render-precise.html.ini
@@ -57,3 +57,33 @@
 
 [corner-shape-render-precise.html?corner-top-left-shape=bevel&border-radius=40px]
   expected: FAIL
+
+[corner-shape-render-precise.html?corner-bottom-right-shape=superellipse(0.8)&border-bottom-right-radius=50%]
+  expected: FAIL
+
+[corner-shape-render-precise.html?corner-top-left-shape=superellipse(0.5)&border-radius=40px]
+  expected: FAIL
+
+[corner-shape-render-precise.html?corner-shape=square&border-bottom-left-radius=5px]
+  expected: FAIL
+
+[corner-shape-render-precise.html?corner-top-left-shape=superellipse(-0.5)&border-radius=40px]
+  expected: FAIL
+
+[corner-shape-render-precise.html?corner-shape=superellipse(3)&border-top-right-radius=33px]
+  expected: FAIL
+
+[corner-shape-render-precise.html?corner-top-left-shape=superellipse(-4)&border-radius=40px]
+  expected: FAIL
+
+[corner-shape-render-precise.html?corner-shape=superellipse(2.3)&border-radius=40%]
+  expected: FAIL
+
+[corner-shape-render-precise.html?corner-top-right-shape=superellipse(-4)&border-top-right-radius=50px]
+  expected: FAIL
+
+[corner-shape-render-precise.html?border-radius=50%&corner-shape=bevel&box-shadow=10px%2010px%200%2010px%20black]
+  expected: FAIL
+
+[corner-shape-render-precise.html?border-top-left-radius=50%&corner-shape=superellipse(0.7)&border-left-width=30px&border-top-width=30px]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-square.html.ini b/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-square.html.ini
new file mode 100644
index 00000000000..e9b1a330d2b
--- /dev/null
+++ b/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-square.html.ini
@@ -0,0 +1,2 @@
+[corner-shape-square.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-straight.html.ini b/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-straight.html.ini
deleted file mode 100644
index 98a7e9f1256..00000000000
--- a/tests/wpt/meta/css/css-borders/tentative/corner-shape/corner-shape-straight.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[corner-shape-straight.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-borders/tentative/parsing/corner-shape-computed.html.ini b/tests/wpt/meta/css/css-borders/tentative/parsing/corner-shape-computed.html.ini
index 83214054c53..948a4ec2e2b 100644
--- a/tests/wpt/meta/css/css-borders/tentative/parsing/corner-shape-computed.html.ini
+++ b/tests/wpt/meta/css/css-borders/tentative/parsing/corner-shape-computed.html.ini
@@ -88,3 +88,27 @@
 
   [Property corner-shape value 'superellipse(0.5) superellipse(3) superellipse(1) superellipse(infinity)']
     expected: FAIL
+
+  [Property corner-top-left-shape value 'superellipse(-infinity)']
+    expected: FAIL
+
+  [Property corner-top-left-shape value 'superellipse( -1)']
+    expected: FAIL
+
+  [Property corner-shape value 'superellipse(-5) superellipse(3) superellipse(7) superellipse(-5.5)']
+    expected: FAIL
+
+  [Property corner-shape value 'bevel superellipse(1)']
+    expected: FAIL
+
+  [Property corner-shape value 'superellipse(-1) superellipse(3) square']
+    expected: FAIL
+
+  [Property corner-shape value 'superellipse(-1) superellipse(3) superellipse(0)']
+    expected: FAIL
+
+  [Property corner-shape value 'bevel superellipse(1) squircle     round']
+    expected: FAIL
+
+  [Property corner-shape value 'superellipse(-1) superellipse(3) superellipse(0) superellipse(infinity)']
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-borders/tentative/parsing/corner-shape-valid.html.ini b/tests/wpt/meta/css/css-borders/tentative/parsing/corner-shape-valid.html.ini
index e26a4c8d4ab..42caaaf6781 100644
--- a/tests/wpt/meta/css/css-borders/tentative/parsing/corner-shape-valid.html.ini
+++ b/tests/wpt/meta/css/css-borders/tentative/parsing/corner-shape-valid.html.ini
@@ -376,3 +376,105 @@
 
   [e.style['corner-shape'\] = "superellipse(0.5) superellipse(3) superellipse(1) superellipse(infinity)" should set the property value]
     expected: FAIL
+
+  [e.style['corner-top-left-shape'\] = "square" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-top-left-shape'\] = "superellipse(-infinity)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-top-left-shape'\] = "superellipse(-0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-top-left-shape'\] = "superellipse(-4)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-top-right-shape'\] = "square" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-top-right-shape'\] = "superellipse(-infinity)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-top-right-shape'\] = "superellipse(-0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-top-right-shape'\] = "superellipse(-4)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-bottom-left-shape'\] = "square" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-bottom-left-shape'\] = "superellipse(-infinity)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-bottom-left-shape'\] = "superellipse(-0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-bottom-left-shape'\] = "superellipse(-4)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-bottom-right-shape'\] = "square" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-bottom-right-shape'\] = "superellipse(-infinity)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-bottom-right-shape'\] = "superellipse(-0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-bottom-right-shape'\] = "superellipse(-4)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-start-start-shape'\] = "square" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-start-start-shape'\] = "superellipse(-infinity)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-start-start-shape'\] = "superellipse(-0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-start-start-shape'\] = "superellipse(-4)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-start-end-shape'\] = "square" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-start-end-shape'\] = "superellipse(-infinity)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-start-end-shape'\] = "superellipse(-0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-start-end-shape'\] = "superellipse(-4)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-end-start-shape'\] = "square" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-end-start-shape'\] = "superellipse(-infinity)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-end-start-shape'\] = "superellipse(-0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-end-start-shape'\] = "superellipse(-4)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-end-end-shape'\] = "square" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-end-end-shape'\] = "superellipse(-infinity)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-end-end-shape'\] = "superellipse(-0.5)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-end-end-shape'\] = "superellipse(-4)" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-shape'\] = "superellipse(0.5) superellipse(3) square" should set the property value]
+    expected: FAIL
+
+  [e.style['corner-shape'\] = "superellipse(-0.5) superellipse(3) square superellipse(-30)" should set the property value]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-easing/timing-functions-syntax-valid.html.ini b/tests/wpt/meta/css/css-easing/timing-functions-syntax-valid.html.ini
index d697a8f8af9..4620f3f5070 100644
--- a/tests/wpt/meta/css/css-easing/timing-functions-syntax-valid.html.ini
+++ b/tests/wpt/meta/css/css-easing/timing-functions-syntax-valid.html.ini
@@ -25,3 +25,6 @@
 
   [e.style['animation-timing-function'\] = "steps(calc(1), jump-none)" should set the property value]
     expected: FAIL
+
+  [e.style['animation-timing-function'\] = "cubic-bezier(0, sibling-index(), 1, sign(2em - 20px))" should set the property value]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-fonts/font-variant-emoji-004.html.ini b/tests/wpt/meta/css/css-fonts/font-variant-emoji-004.html.ini
deleted file mode 100644
index 61006a4ff60..00000000000
--- a/tests/wpt/meta/css/css-fonts/font-variant-emoji-004.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[font-variant-emoji-004.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-fonts/font-variation-settings-calc.html.ini b/tests/wpt/meta/css/css-fonts/font-variation-settings-calc.html.ini
index 1d2d3f28119..3a095adab62 100644
--- a/tests/wpt/meta/css/css-fonts/font-variation-settings-calc.html.ini
+++ b/tests/wpt/meta/css/css-fonts/font-variation-settings-calc.html.ini
@@ -10,3 +10,15 @@
 
   [Property font-variation-settings value '"wght" sibling-index()']
     expected: FAIL
+
+  [e.style['font-variation-settings'\] = "\\"wght\\" calc(10)" should set the property value]
+    expected: FAIL
+
+  [e.style['font-variation-settings'\] = "\\"wght\\" sign(2px)" should set the property value]
+    expected: FAIL
+
+  [Property font-variation-settings value '"wght" calc(10)']
+    expected: FAIL
+
+  [Property font-variation-settings value '"wght" sign(2px)']
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-fonts/parsing/font-stretch-computed.html.ini b/tests/wpt/meta/css/css-fonts/parsing/font-stretch-computed.html.ini
deleted file mode 100644
index 1e985cb770a..00000000000
--- a/tests/wpt/meta/css/css-fonts/parsing/font-stretch-computed.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[font-stretch-computed.html]
-  [Property font-stretch value 'calc(100% + (sign(20cqw - 10px) * 5%))']
-    expected: FAIL
diff --git a/tests/wpt/meta/css/css-fonts/parsing/font-stretch-valid.html.ini b/tests/wpt/meta/css/css-fonts/parsing/font-stretch-valid.html.ini
deleted file mode 100644
index 8d0d3962761..00000000000
--- a/tests/wpt/meta/css/css-fonts/parsing/font-stretch-valid.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[font-stretch-valid.html]
-  [e.style['font-stretch'\] = "calc(100% + (sign(20cqw - 10px) * 5%))" should set the property value]
-    expected: FAIL
diff --git a/tests/wpt/meta/css/css-fonts/parsing/font-width-computed.html.ini b/tests/wpt/meta/css/css-fonts/parsing/font-width-computed.html.ini
new file mode 100644
index 00000000000..91776d4f230
--- /dev/null
+++ b/tests/wpt/meta/css/css-fonts/parsing/font-width-computed.html.ini
@@ -0,0 +1,48 @@
+[font-width-computed.html]
+  [Property font-width value 'ultra-condensed']
+    expected: FAIL
+
+  [Property font-width value 'extra-condensed']
+    expected: FAIL
+
+  [Property font-width value 'condensed']
+    expected: FAIL
+
+  [Property font-width value 'semi-condensed']
+    expected: FAIL
+
+  [Property font-width value 'normal']
+    expected: FAIL
+
+  [Property font-width value 'semi-expanded']
+    expected: FAIL
+
+  [Property font-width value 'expanded']
+    expected: FAIL
+
+  [Property font-width value 'extra-expanded']
+    expected: FAIL
+
+  [Property font-width value 'ultra-expanded']
+    expected: FAIL
+
+  [Property font-width value '234.5%']
+    expected: FAIL
+
+  [Property font-width value 'calc(100%)']
+    expected: FAIL
+
+  [Property font-width value 'calc(0%)']
+    expected: FAIL
+
+  [Property font-width value 'calc(-100%)']
+    expected: FAIL
+
+  [Property font-width value 'calc(100% + 100%)']
+    expected: FAIL
+
+  [Property font-width value 'calc(100% + (sign(20cqw - 10px) * 5%))']
+    expected: FAIL
+
+  [Property font-stretch value 'calc(100% + (sign(20cqw - 10px) * 5%))']
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-fonts/parsing/font-width-valid.html.ini b/tests/wpt/meta/css/css-fonts/parsing/font-width-valid.html.ini
new file mode 100644
index 00000000000..02aa615b156
--- /dev/null
+++ b/tests/wpt/meta/css/css-fonts/parsing/font-width-valid.html.ini
@@ -0,0 +1,48 @@
+[font-width-valid.html]
+  [e.style['font-width'\] = "normal" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "ultra-condensed" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "extra-condensed" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "condensed" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "semi-condensed" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "semi-expanded" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "expanded" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "extra-expanded" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "ultra-expanded" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "234.5%" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "calc(100%)" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "calc(0%)" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "calc(-100%)" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "calc(100% + 100%)" should set the property value]
+    expected: FAIL
+
+  [e.style['font-width'\] = "calc(100% + (sign(20cqw - 10px) * 5%))" should set the property value]
+    expected: FAIL
+
+  [e.style['font-stretch'\] = "calc(100% + (sign(20cqw - 10px) * 5%))" should set the property value]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-016.html.ini b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-016.html.ini
new file mode 100644
index 00000000000..d540ae8a7bd
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-016.html.ini
@@ -0,0 +1,2 @@
+[grid-gap-decorations-016.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-017.html.ini b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-017.html.ini
new file mode 100644
index 00000000000..4e579e8d253
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-017.html.ini
@@ -0,0 +1,2 @@
+[grid-gap-decorations-017.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-018.html.ini b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-018.html.ini
new file mode 100644
index 00000000000..66237ae937d
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-018.html.ini
@@ -0,0 +1,2 @@
+[grid-gap-decorations-018.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-019.html.ini b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-019.html.ini
new file mode 100644
index 00000000000..87433c54943
--- /dev/null
+++ b/tests/wpt/meta/css/css-gaps/tentative/grid/grid-gap-decorations-019.html.ini
@@ -0,0 +1,2 @@
+[grid-gap-decorations-019.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/conic-gradient-angle-negative.html.ini b/tests/wpt/meta/css/css-images/conic-gradient-angle-negative.html.ini
deleted file mode 100644
index 2d32aca2dd1..00000000000
--- a/tests/wpt/meta/css/css-images/conic-gradient-angle-negative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[conic-gradient-angle-negative.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/conic-gradient-angle.html.ini b/tests/wpt/meta/css/css-images/conic-gradient-angle.html.ini
deleted file mode 100644
index f5905bc26fd..00000000000
--- a/tests/wpt/meta/css/css-images/conic-gradient-angle.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[conic-gradient-angle.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/conic-gradient-center.html.ini b/tests/wpt/meta/css/css-images/conic-gradient-center.html.ini
deleted file mode 100644
index 52c7e1636ef..00000000000
--- a/tests/wpt/meta/css/css-images/conic-gradient-center.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[conic-gradient-center.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/multiple-position-color-stop-conic.html.ini b/tests/wpt/meta/css/css-images/multiple-position-color-stop-conic.html.ini
deleted file mode 100644
index 7897d70c1a1..00000000000
--- a/tests/wpt/meta/css/css-images/multiple-position-color-stop-conic.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[multiple-position-color-stop-conic.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/normalization-conic-2.html.ini b/tests/wpt/meta/css/css-images/normalization-conic-2.html.ini
deleted file mode 100644
index 712f51069c5..00000000000
--- a/tests/wpt/meta/css/css-images/normalization-conic-2.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[normalization-conic-2.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/normalization-conic-degenerate.html.ini b/tests/wpt/meta/css/css-images/normalization-conic-degenerate.html.ini
deleted file mode 100644
index 7348a8278d8..00000000000
--- a/tests/wpt/meta/css/css-images/normalization-conic-degenerate.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[normalization-conic-degenerate.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/normalization-conic.html.ini b/tests/wpt/meta/css/css-images/normalization-conic.html.ini
deleted file mode 100644
index a5ac414e610..00000000000
--- a/tests/wpt/meta/css/css-images/normalization-conic.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[normalization-conic.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/out-of-range-color-stop-conic.html.ini b/tests/wpt/meta/css/css-images/out-of-range-color-stop-conic.html.ini
deleted file mode 100644
index fa1a353540c..00000000000
--- a/tests/wpt/meta/css/css-images/out-of-range-color-stop-conic.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[out-of-range-color-stop-conic.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-images/tiled-conic-gradients.html.ini b/tests/wpt/meta/css/css-images/tiled-conic-gradients.html.ini
deleted file mode 100644
index e2b676b1315..00000000000
--- a/tests/wpt/meta/css/css-images/tiled-conic-gradients.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[tiled-conic-gradients.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-013.html.ini b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-013.html.ini
new file mode 100644
index 00000000000..588e2afbb6c
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-013.html.ini
@@ -0,0 +1,2 @@
+[block-ellipsis-013.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-014.html.ini b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-014.html.ini
new file mode 100644
index 00000000000..29753f9013a
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-014.html.ini
@@ -0,0 +1,2 @@
+[block-ellipsis-014.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-015.html.ini b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-015.html.ini
new file mode 100644
index 00000000000..caf060b24ad
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-015.html.ini
@@ -0,0 +1,2 @@
+[block-ellipsis-015.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-016.html.ini b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-016.html.ini
new file mode 100644
index 00000000000..5771ee535b5
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-016.html.ini
@@ -0,0 +1,2 @@
+[block-ellipsis-016.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-017.html.ini b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-017.html.ini
new file mode 100644
index 00000000000..596140fc158
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-017.html.ini
@@ -0,0 +1,2 @@
+[block-ellipsis-017.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-018.html.ini b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-018.html.ini
new file mode 100644
index 00000000000..57323fe2c16
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-018.html.ini
@@ -0,0 +1,2 @@
+[block-ellipsis-018.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-019.tentative.html.ini b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-019.tentative.html.ini
new file mode 100644
index 00000000000..c10bca416a1
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-019.tentative.html.ini
@@ -0,0 +1,2 @@
+[block-ellipsis-019.tentative.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-020.tentative.html.ini b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-020.tentative.html.ini
new file mode 100644
index 00000000000..fda5182ba31
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-020.tentative.html.ini
@@ -0,0 +1,2 @@
+[block-ellipsis-020.tentative.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-021.tentative.html.ini b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-021.tentative.html.ini
new file mode 100644
index 00000000000..90627aef3b9
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/line-clamp/block-ellipsis-021.tentative.html.ini
@@ -0,0 +1,2 @@
+[block-ellipsis-021.tentative.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-overflow/root-scroll-button.html.ini b/tests/wpt/meta/css/css-overflow/root-scroll-button.html.ini
new file mode 100644
index 00000000000..12d581a2d25
--- /dev/null
+++ b/tests/wpt/meta/css/css-overflow/root-scroll-button.html.ini
@@ -0,0 +1,2 @@
+[root-scroll-button.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-ui/interactivity-inert-all.tentative.html.ini b/tests/wpt/meta/css/css-ui/interactivity-inert-all.tentative.html.ini
new file mode 100644
index 00000000000..a5eb92d53a8
--- /dev/null
+++ b/tests/wpt/meta/css/css-ui/interactivity-inert-all.tentative.html.ini
@@ -0,0 +1,3 @@
+[interactivity-inert-all.tentative.html]
+  [The 'all' shorthand should not set 'interactivity']
+    expected: FAIL
diff --git a/tests/wpt/meta/css/cssom/cssom-fontfacerule-constructors.html.ini b/tests/wpt/meta/css/cssom/cssom-fontfacerule-constructors.html.ini
index 8362bc77717..4355f90dec9 100644
--- a/tests/wpt/meta/css/cssom/cssom-fontfacerule-constructors.html.ini
+++ b/tests/wpt/meta/css/cssom/cssom-fontfacerule-constructors.html.ini
@@ -2,3 +2,5 @@
   [The style attribute must return a CSSStyleDeclaration block]
     expected: FAIL
 
+  [The style attribute must return a CSSFontFaceDescriptors block]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/cssom/getComputedStyle-resolved-min-size-auto.html.ini b/tests/wpt/meta/css/cssom/getComputedStyle-resolved-min-size-auto.html.ini
new file mode 100644
index 00000000000..558d7b5b647
--- /dev/null
+++ b/tests/wpt/meta/css/cssom/getComputedStyle-resolved-min-size-auto.html.ini
@@ -0,0 +1,21 @@
+[getComputedStyle-resolved-min-size-auto.html]
+  [Resolved value of min-width & min-height 'auto' keyword behaves as expected on element with id="block-box"]
+    expected: FAIL
+
+  [Resolved value of min-width & min-height 'auto' keyword behaves as expected on element with id="inline-box"]
+    expected: FAIL
+
+  [Resolved value of min-width & min-height 'auto' keyword behaves as expected on element with id="display-none"]
+    expected: FAIL
+
+  [Resolved value of min-width & min-height 'auto' keyword behaves as expected on element with id="display-none-valid-aspect-ratio"]
+    expected: FAIL
+
+  [Resolved value of min-width & min-height 'auto' keyword behaves as expected on element with id="display-none-subtree-valid-aspect-ratio"]
+    expected: FAIL
+
+  [Resolved value of min-width & min-height 'auto' keyword behaves as expected on element with id="display-none-subtree-flex-item"]
+    expected: FAIL
+
+  [Resolved value of min-width & min-height 'auto' keyword behaves as expected on element with id="display-none-subtree-grid-item"]
+    expected: FAIL
diff --git a/tests/wpt/meta/css/cssom/idlharness.html.ini b/tests/wpt/meta/css/cssom/idlharness.html.ini
index 3a9e207afdb..2787985ef75 100644
--- a/tests/wpt/meta/css/cssom/idlharness.html.ini
+++ b/tests/wpt/meta/css/cssom/idlharness.html.ini
@@ -571,3 +571,78 @@
 
   [CSSPageDescriptors interface: attribute page-orientation]
     expected: FAIL
+
+  [CSSPageDescriptors must be primary interface of sheet.cssRules[2\].style]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "margin" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "marginTop" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "marginRight" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "marginBottom" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "marginLeft" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "margin-top" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "margin-right" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "margin-bottom" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "margin-left" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "size" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "pageOrientation" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "page-orientation" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "marks" with the proper type]
+    expected: FAIL
+
+  [CSSPageDescriptors interface: sheet.cssRules[2\].style must inherit property "bleed" with the proper type]
+    expected: FAIL
+
+  [CSSStyleProperties must be primary interface of sheet.cssRules[4\].style]
+    expected: FAIL
+
+  [CSSStyleProperties interface: sheet.cssRules[4\].style must inherit property "cssFloat" with the proper type]
+    expected: FAIL
+
+  [CSSStyleProperties must be primary interface of sheet.cssRules[2\].cssRules[0\].style]
+    expected: FAIL
+
+  [CSSStyleProperties interface: sheet.cssRules[2\].cssRules[0\].style must inherit property "cssFloat" with the proper type]
+    expected: FAIL
+
+  [CSSStyleProperties must be primary interface of style_element.style]
+    expected: FAIL
+
+  [Stringification of style_element.style]
+    expected: FAIL
+
+  [CSSStyleProperties must be primary interface of svg_element.style]
+    expected: FAIL
+
+  [CSSStyleProperties interface: svg_element.style must inherit property "cssFloat" with the proper type]
+    expected: FAIL
+
+  [CSSStyleProperties must be primary interface of getComputedStyle(svg_element)]
+    expected: FAIL
+
+  [Stringification of getComputedStyle(svg_element)]
+    expected: FAIL
diff --git a/tests/wpt/meta/fetch/metadata/generated/css-font-face.https.sub.tentative.html.ini b/tests/wpt/meta/fetch/metadata/generated/css-font-face.https.sub.tentative.html.ini
index a02fcf871ab..12a2314e747 100644
--- a/tests/wpt/meta/fetch/metadata/generated/css-font-face.https.sub.tentative.html.ini
+++ b/tests/wpt/meta/fetch/metadata/generated/css-font-face.https.sub.tentative.html.ini
@@ -52,3 +52,6 @@
 
   [sec-fetch-storage-access - Cross-site]
     expected: FAIL
+
+  [sec-fetch-user]
+    expected: FAIL
diff --git a/tests/wpt/meta/fetch/metadata/generated/serviceworker.https.sub.html.ini b/tests/wpt/meta/fetch/metadata/generated/serviceworker.https.sub.html.ini
index 06cec1df48b..b47a84ff066 100644
--- a/tests/wpt/meta/fetch/metadata/generated/serviceworker.https.sub.html.ini
+++ b/tests/wpt/meta/fetch/metadata/generated/serviceworker.https.sub.html.ini
@@ -1,8 +1,5 @@
 [serviceworker.https.sub.html]
   expected: ERROR
-  [sec-fetch-site - Same origin, no options - registration]
-    expected: FAIL
-
   [sec-fetch-site - Same origin, no options - updating]
     expected: NOTRUN
 
diff --git a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/008.html.ini b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/008.html.ini
new file mode 100644
index 00000000000..c253f779d78
--- /dev/null
+++ b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/008.html.ini
@@ -0,0 +1,3 @@
+[008.html]
+  [Link with onclick form submit to javascript url and href navigation ]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini
index 2241163d563..6313c3e33dd 100644
--- a/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini
+++ b/tests/wpt/meta/html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/iframe-nosrc.html.ini
@@ -2,8 +2,5 @@
   [window.open]
     expected: FAIL
 
-  [form submission]
-    expected: FAIL
-
   [link click]
     expected: FAIL
diff --git a/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini b/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
new file mode 100644
index 00000000000..d6188c03424
--- /dev/null
+++ b/tests/wpt/meta/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
@@ -0,0 +1,3 @@
+[traverse_the_history_4.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/canvas/element/canvas-host/2d.canvas.host.size.large.html.ini b/tests/wpt/meta/html/canvas/element/canvas-host/2d.canvas.host.size.large.html.ini
new file mode 100644
index 00000000000..f6455f9bd76
--- /dev/null
+++ b/tests/wpt/meta/html/canvas/element/canvas-host/2d.canvas.host.size.large.html.ini
@@ -0,0 +1,2 @@
+[2d.canvas.host.size.large.html]
+  expected: CRASH
diff --git a/tests/wpt/meta/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html.ini b/tests/wpt/meta/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html.ini
index 2e8cf2714af..71e538c3416 100644
--- a/tests/wpt/meta/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html.ini
+++ b/tests/wpt/meta/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html.ini
@@ -22,3 +22,6 @@
 
   [Scrolling should still occur when beforematch sets visiblity:hidden on the target element.]
     expected: FAIL
+
+  [The hidden attribute should still be set inside the beforematch event handler.]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/interaction/focus/the-autofocus-attribute/document-with-fragment-valid.html.ini b/tests/wpt/meta/html/interaction/focus/the-autofocus-attribute/document-with-fragment-valid.html.ini
new file mode 100644
index 00000000000..b0c997e92a8
--- /dev/null
+++ b/tests/wpt/meta/html/interaction/focus/the-autofocus-attribute/document-with-fragment-valid.html.ini
@@ -0,0 +1,3 @@
+[document-with-fragment-valid.html]
+  [Autofocus elements in top-level browsing context's documents with URL fragments should be skipped.]
+    expected: FAIL
diff --git a/tests/wpt/meta/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini b/tests/wpt/meta/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
index b3b91068b8d..ddd65fdcec8 100644
--- a/tests/wpt/meta/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
+++ b/tests/wpt/meta/html/interaction/focus/the-autofocus-attribute/supported-elements.html.ini
@@ -1,5 +1,4 @@
 [supported-elements.html]
-  expected: TIMEOUT
   [Contenteditable element should support autofocus]
     expected: FAIL
 
@@ -10,7 +9,7 @@
     expected: FAIL
 
   [Area element should support autofocus]
-    expected: NOTRUN
+    expected: FAIL
 
   [Host element with delegatesFocus should support autofocus]
     expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/document-metadata/the-link-element/link-load-error-events.https.html.ini b/tests/wpt/meta/html/semantics/document-metadata/the-link-element/link-load-error-events.https.html.ini
index e827806f81e..12f49d23c83 100644
--- a/tests/wpt/meta/html/semantics/document-metadata/the-link-element/link-load-error-events.https.html.ini
+++ b/tests/wpt/meta/html/semantics/document-metadata/the-link-element/link-load-error-events.https.html.ini
@@ -7,12 +7,3 @@
 
   [Import of import of non-CSS stylesheet]
     expected: FAIL
-
-  [Load of http:// stylesheet]
-    expected: FAIL
-
-  [Import of http:// stylesheet]
-    expected: FAIL
-
-  [Import of import of http:// stylesheet]
-    expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
index 24903b5f66f..d7d0d3ef89d 100644
--- a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
+++ b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
@@ -1,4 +1,4 @@
 [iframe_sandbox_popups_escaping-1.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/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
index ef88bb2e2fd..1c4e58a8ba1 100644
--- a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,4 +1,4 @@
 [iframe_sandbox_popups_escaping-3.html]
-  expected: TIMEOUT
+  expected: CRASH
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
     expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
index 96d866bf3cc..e8872b3585b 100644
--- a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
+++ b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
@@ -1,4 +1,4 @@
 [iframe_sandbox_popups_nonescaping-1.html]
   expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: FAIL
+    expected: NOTRUN
diff --git a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
index 1ae1c2cc134..c6f1e5d7d84 100644
--- a/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
+++ b/tests/wpt/meta/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html.ini
@@ -1,4 +1,4 @@
 [iframe_sandbox_popups_nonescaping-2.html]
-  expected: CRASH
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: FAIL
+    expected: NOTRUN
diff --git a/tests/wpt/meta/html/semantics/forms/form-submission-0/form-submit-iframe-then-location-navigate.html.ini b/tests/wpt/meta/html/semantics/forms/form-submission-0/form-submit-iframe-then-location-navigate.html.ini
deleted file mode 100644
index d44f3ccff52..00000000000
--- a/tests/wpt/meta/html/semantics/forms/form-submission-0/form-submit-iframe-then-location-navigate.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[form-submit-iframe-then-location-navigate.html]
-  [Verifies that location navigations take precedence when following form submissions.]
-    expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/forms/form-submission-0/reparent-form-during-planned-navigation-task.html.ini b/tests/wpt/meta/html/semantics/forms/form-submission-0/reparent-form-during-planned-navigation-task.html.ini
new file mode 100644
index 00000000000..7682a4830bf
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/forms/form-submission-0/reparent-form-during-planned-navigation-task.html.ini
@@ -0,0 +1,4 @@
+[reparent-form-during-planned-navigation-task.html]
+  expected: TIMEOUT
+  [reparent-form-during-planned-navigation-task]
+    expected: TIMEOUT
diff --git a/tests/wpt/meta/html/semantics/permission-element/no-end-tag-no-contents.tentative.html.ini b/tests/wpt/meta/html/semantics/permission-element/no-children-rendered.tentative.html.ini
similarity index 66%
rename from tests/wpt/meta/html/semantics/permission-element/no-end-tag-no-contents.tentative.html.ini
rename to tests/wpt/meta/html/semantics/permission-element/no-children-rendered.tentative.html.ini
index 74c49933101..a5e1c4dbbda 100644
--- a/tests/wpt/meta/html/semantics/permission-element/no-end-tag-no-contents.tentative.html.ini
+++ b/tests/wpt/meta/html/semantics/permission-element/no-children-rendered.tentative.html.ini
@@ -1,3 +1,3 @@
-[no-end-tag-no-contents.tentative.html]
+[no-children-rendered.tentative.html]
   [The permission element should have no end tag or contents]
     expected: FAIL
diff --git a/tests/wpt/meta/html/semantics/permission-element/type-supported-feature-detect.tentative.html.ini b/tests/wpt/meta/html/semantics/permission-element/type-supported-feature-detect.tentative.html.ini
new file mode 100644
index 00000000000..48398cb92be
--- /dev/null
+++ b/tests/wpt/meta/html/semantics/permission-element/type-supported-feature-detect.tentative.html.ini
@@ -0,0 +1,39 @@
+[type-supported-feature-detect.tentative.html]
+  [Test HTMLPermissionElement and isTypeSupported existence]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should support type geolocation]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should support type camera]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should support type microphone]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should support type  camera  microphone ]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should support type  microphone  camera   ]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should support type  camera camera microphone]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should support type microphone microphone camera ]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should not support type invalid]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should not support type cameraa]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should not support type microphone geolocation]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should not support type camera geolocation]
+    expected: FAIL
+
+  [Test HTMLPermissionElement should not support type camera geolocation microphone]
+    expected: FAIL
diff --git a/tests/wpt/meta/mixed-content/gen/top.http-rp/opt-in/audio-tag.https.html.ini b/tests/wpt/meta/mixed-content/gen/top.http-rp/opt-in/audio-tag.https.html.ini
index becb376ab4c..e46ff8c1948 100644
--- a/tests/wpt/meta/mixed-content/gen/top.http-rp/opt-in/audio-tag.https.html.ini
+++ b/tests/wpt/meta/mixed-content/gen/top.http-rp/opt-in/audio-tag.https.html.ini
@@ -1,25 +1,25 @@
 [audio-tag.https.html]
   expected: TIMEOUT
   [Mixed-Content: Expects blocked for audio-tag to cross-http origin and keep-scheme redirection from https context.]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Mixed-Content: Expects blocked for audio-tag to cross-http origin and no-redirect redirection from https context.]
-    expected: FAIL
+    expected: NOTRUN
 
   [Mixed-Content: Expects blocked for audio-tag to cross-http origin and swap-scheme redirection from https context.]
-    expected: FAIL
+    expected: NOTRUN
 
   [Mixed-Content: Expects blocked for audio-tag to cross-https origin and swap-scheme redirection from https context.]
-    expected: FAIL
+    expected: NOTRUN
 
   [Mixed-Content: Expects blocked for audio-tag to same-http origin and keep-scheme redirection from https context.]
-    expected: FAIL
+    expected: NOTRUN
 
   [Mixed-Content: Expects blocked for audio-tag to same-http origin and no-redirect redirection from https context.]
-    expected: FAIL
+    expected: NOTRUN
 
   [Mixed-Content: Expects blocked for audio-tag to same-http origin and swap-scheme redirection from https context.]
-    expected: FAIL
+    expected: NOTRUN
 
   [Mixed-Content: Expects blocked for audio-tag to same-https origin and swap-scheme redirection from https context.]
-    expected: FAIL
+    expected: NOTRUN
diff --git a/tests/wpt/meta/resize-observer/eventloop.html.ini b/tests/wpt/meta/resize-observer/eventloop.html.ini
new file mode 100644
index 00000000000..6ed748ec951
--- /dev/null
+++ b/tests/wpt/meta/resize-observer/eventloop.html.ini
@@ -0,0 +1,3 @@
+[eventloop.html]
+  [test0: multiple notifications inside same event loop]
+    expected: FAIL
diff --git a/tests/wpt/meta/service-workers/idlharness.https.any.js.ini b/tests/wpt/meta/service-workers/idlharness.https.any.js.ini
index aba70ff3a35..f85e3c42ea4 100644
--- a/tests/wpt/meta/service-workers/idlharness.https.any.js.ini
+++ b/tests/wpt/meta/service-workers/idlharness.https.any.js.ini
@@ -108,21 +108,6 @@
   [Window interface: attribute caches]
     expected: FAIL
 
-  [ServiceWorkerContainer interface: operation register((TrustedScriptURL or USVString), optional RegistrationOptions)]
-    expected: TIMEOUT
-
-  [NavigationPreloadManager interface: operation enable()]
-    expected: TIMEOUT
-
-  [NavigationPreloadManager interface: operation disable()]
-    expected: TIMEOUT
-
-  [NavigationPreloadManager interface: operation setHeaderValue(ByteString)]
-    expected: TIMEOUT
-
-  [NavigationPreloadManager interface: operation getState()]
-    expected: TIMEOUT
-
 
 [idlharness.https.any.serviceworker.html]
   expected: ERROR
diff --git a/tests/wpt/meta/service-workers/service-worker/client-url-creation-url.https.html.ini b/tests/wpt/meta/service-workers/service-worker/client-url-creation-url.https.html.ini
new file mode 100644
index 00000000000..520d0d38e71
--- /dev/null
+++ b/tests/wpt/meta/service-workers/service-worker/client-url-creation-url.https.html.ini
@@ -0,0 +1,30 @@
+[client-url-creation-url.https.html]
+  [No navigation creation URL is same as window URL]
+    expected: FAIL
+
+  [Fragment only navigation doesn't change creation URL]
+    expected: FAIL
+
+  [Pushstate doesn't change creation URL]
+    expected: FAIL
+
+  [Replacestate doesn't change creation URL]
+    expected: FAIL
+
+  [Going back over pushstate to other pushstate via back]
+    expected: FAIL
+
+  [Query navigation changes creation URL]
+    expected: FAIL
+
+  [Reloading doesn't change creation URL]
+    expected: FAIL
+
+  [Reloading pushstate URL changes creation URL]
+    expected: FAIL
+
+  [Going back over pushstate to creation URL]
+    expected: FAIL
+
+  [Going back to new document changes creation URL]
+    expected: FAIL
diff --git a/tests/wpt/meta/streams/writable-streams/close.any.js.ini b/tests/wpt/meta/streams/writable-streams/close.any.js.ini
index 0c76bc311f8..5bd5376be2d 100644
--- a/tests/wpt/meta/streams/writable-streams/close.any.js.ini
+++ b/tests/wpt/meta/streams/writable-streams/close.any.js.ini
@@ -21,3 +21,9 @@
 
 [close.any.shadowrealm-in-shadowrealm.html]
   expected: ERROR
+
+[close.any.worker.html]
+  expected: CRASH
+
+[close.any.html]
+  expected: CRASH
diff --git a/tests/wpt/meta/trusted-types/should-sink-type-mismatch-violation-be-blocked-by-csp-001.html.ini b/tests/wpt/meta/trusted-types/should-sink-type-mismatch-violation-be-blocked-by-csp-001.html.ini
index 1a8c40bf9b8..d5be76e88b8 100644
--- a/tests/wpt/meta/trusted-types/should-sink-type-mismatch-violation-be-blocked-by-csp-001.html.ini
+++ b/tests/wpt/meta/trusted-types/should-sink-type-mismatch-violation-be-blocked-by-csp-001.html.ini
@@ -29,3 +29,6 @@
 
   [directive "require-trusted-types-for 'invalid' 'script' 'also-invalid" (unknown sink group)]
     expected: NOTRUN
+
+  [directive "require-trusted-types-for unquoted-invalid 'script' also-unquoted-invalid (unknown sink group)]
+    expected: NOTRUN
diff --git a/tests/wpt/meta/trusted-types/trusted-types-navigation.html.ini b/tests/wpt/meta/trusted-types/trusted-types-navigation.html.ini
index 1f1d8ce429b..3e4af38bdad 100644
--- a/tests/wpt/meta/trusted-types/trusted-types-navigation.html.ini
+++ b/tests/wpt/meta/trusted-types/trusted-types-navigation.html.ini
@@ -1,13 +1,13 @@
 [trusted-types-navigation.html]
   expected: TIMEOUT
   [Navigate a window via anchor with javascript:-urls in enforcing mode.]
-    expected: TIMEOUT
+    expected: FAIL
 
   [Navigate a window via anchor with javascript:-urls w/ default policy in enforcing mode.]
-    expected: NOTRUN
+    expected: FAIL
 
   [Navigate a window via anchor with javascript:-urls in report-only mode.]
-    expected: NOTRUN
+    expected: TIMEOUT
 
   [Navigate a window via anchor with javascript:-urls w/ default policy in report-only mode.]
     expected: NOTRUN
diff --git a/tests/wpt/meta/trusted-types/trusted-types-reporting-clipping-of-sample.html.ini b/tests/wpt/meta/trusted-types/trusted-types-reporting-clipping-of-sample.html.ini
new file mode 100644
index 00000000000..c60f2c7d1a7
--- /dev/null
+++ b/tests/wpt/meta/trusted-types/trusted-types-reporting-clipping-of-sample.html.ini
@@ -0,0 +1,37 @@
+[trusted-types-reporting-clipping-of-sample.html]
+  expected: TIMEOUT
+  [Clipping of violation sample for createPolicy(AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA)]
+    expected: TIMEOUT
+
+  [Clipping of violation sample for Element.innerHTML = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"]
+    expected: NOTRUN
+
+  [Clipping of violation sample for createPolicy(BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB)]
+    expected: NOTRUN
+
+  [Clipping of violation sample for Element.innerHTML = "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB"]
+    expected: NOTRUN
+
+  [Clipping of violation sample for createPolicy(CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC)]
+    expected: NOTRUN
+
+  [Clipping of violation sample for Element.innerHTML = "CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC"]
+    expected: NOTRUN
+
+  [Clipping of violation sample for createPolicy(ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ)]
+    expected: NOTRUN
+
+  [Clipping of violation sample for Element.innerHTML = "ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ"]
+    expected: NOTRUN
+
+  [Clipping of violation sample for createPolicy(ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ)]
+    expected: NOTRUN
+
+  [Clipping of violation sample for Element.innerHTML = "ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ"]
+    expected: NOTRUN
+
+  [Clipping of violation sample for createPolicy(℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉)]
+    expected: NOTRUN
+
+  [Clipping of violation sample for Element.innerHTML = "℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉℉"]
+    expected: NOTRUN
diff --git a/tests/wpt/meta/trusted-types/trusted-types-reporting-clipping-of-sample.tentative.html.ini b/tests/wpt/meta/trusted-types/trusted-types-reporting-clipping-of-sample.tentative.html.ini
new file mode 100644
index 00000000000..4070a88bf3a
--- /dev/null
+++ b/tests/wpt/meta/trusted-types/trusted-types-reporting-clipping-of-sample.tentative.html.ini
@@ -0,0 +1,25 @@
+[trusted-types-reporting-clipping-of-sample.tentative.html]
+  expected: TIMEOUT
+  [Clipping of violation sample for createPolicy(𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆)]
+    expected: TIMEOUT
+
+  [Clipping of violation sample for Element.innerHTML = "𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆𝐆"]
+    expected: NOTRUN
+
+  [Clipping of violation sample for createPolicy(H𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇)]
+    expected: NOTRUN
+
+  [Clipping of violation sample for Element.innerHTML = "H𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇𝐇"]
+    expected: NOTRUN
+
+  [Clipping of violation sample for createPolicy(𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈I)]
+    expected: NOTRUN
+
+  [Clipping of violation sample for Element.innerHTML = "𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈𝐈I"]
+    expected: NOTRUN
+
+  [Clipping of violation sample for createPolicy(𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉)]
+    expected: NOTRUN
+
+  [Clipping of violation sample for Element.innerHTML = "𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉𝐉"]
+    expected: NOTRUN
diff --git a/tests/wpt/meta/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini b/tests/wpt/meta/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
index 20a8f9a4320..1f70062991c 100644
--- a/tests/wpt/meta/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
+++ b/tests/wpt/meta/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
@@ -1,5 +1,4 @@
 [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/meta/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini b/tests/wpt/meta/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
index 2f165bcd916..ae183983ebf 100644
--- a/tests/wpt/meta/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
+++ b/tests/wpt/meta/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
@@ -718,3 +718,15 @@
 
   [X SNR (55.28431859691825 dB) is not greater than or equal to 65.737. Got 55.28431859691825.]
     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[14680\]\t-3.8465124000000000e+7\t2.0512369275093079e-1\t3.8465124205123693e+7\t1.8752160557010618e+8\t3.8985999999999999e-3\n\t[14681\]\t1.1480505578219891e-2\t1.4340442419052124e-1\t1.3192391861230135e-1\t9.1994315626575540e-1\t3.8985999999999999e-3\n\tMax AbsError of 3.8465124205123693e+7 at index of 14680.\n\tMax RelError of 1.8752160557010618e+8 at index of 14680.\n]
+    expected: FAIL
+
+  [X SNR (-108.26725683849378 dB) is not greater than or equal to 65.737. Got -108.26725683849378.]
+    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[14680\]\t1.6520574524194816e+17\t2.0512369275093079e-1\t1.6520574524194816e+17\t8.0539572502015859e+17\t3.8985999999999999e-3\n\t[14681\]\t1.1480505578219891e-2\t1.4340442419052124e-1\t1.3192391861230135e-1\t9.1994315626575540e-1\t3.8985999999999999e-3\n\tMax AbsError of 1.6520574524194816e+17 at index of 14680.\n\tMax RelError of 8.0539572502015859e+17 at index of 14680.\n]
+    expected: FAIL
+
+  [X SNR (-300.92641698386234 dB) is not greater than or equal to 65.737. Got -300.92641698386234.]
+    expected: FAIL
diff --git a/tests/wpt/meta/workers/constructors/Worker/Worker-constructor.html.ini b/tests/wpt/meta/workers/constructors/Worker/Worker-constructor.html.ini
new file mode 100644
index 00000000000..80f9a4f15b8
--- /dev/null
+++ b/tests/wpt/meta/workers/constructors/Worker/Worker-constructor.html.ini
@@ -0,0 +1,2 @@
+[Worker-constructor.html]
+  expected: ERROR
diff --git a/tests/wpt/tests/.azure-pipelines.yml b/tests/wpt/tests/.azure-pipelines.yml
index 56b67ef6057..5e37bc4d3f4 100644
--- a/tests/wpt/tests/.azure-pipelines.yml
+++ b/tests/wpt/tests/.azure-pipelines.yml
@@ -71,7 +71,7 @@ jobs:
   displayName: './wpt test-jobs'
   condition: eq(variables['Build.Reason'], 'PullRequest')
   pool:
-    vmImage: 'ubuntu-20.04'
+    vmImage: 'ubuntu-24.04'
   steps:
   - task: UsePythonVersion@0
     inputs:
diff --git a/tests/wpt/tests/.taskcluster.yml b/tests/wpt/tests/.taskcluster.yml
index 18c82321f92..9ade5168bbb 100644
--- a/tests/wpt/tests/.taskcluster.yml
+++ b/tests/wpt/tests/.taskcluster.yml
@@ -57,7 +57,7 @@ tasks:
             owner: ${owner}
             source: ${event.repository.clone_url}
           payload:
-            image: ghcr.io/web-platform-tests/wpt:1
+            image: ghcr.io/web-platform-tests/wpt:2
             maxRunTime: 7200
             artifacts:
               public/results:
diff --git a/tests/wpt/tests/IndexedDB/key-conversion-exceptions.any.js b/tests/wpt/tests/IndexedDB/key-conversion-exceptions.any.js
new file mode 100644
index 00000000000..08b99946c01
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/key-conversion-exceptions.any.js
@@ -0,0 +1,207 @@
+// META: global=window,worker
+// META: title=IndexedDB: Exceptions thrown during key conversion
+// META: script=resources/support.js
+// META: timeout=long
+
+'use strict';
+
+// Convenience function for tests that only need to run code in onupgradeneeded.
+function indexeddb_upgrade_only_test(upgrade_callback, description) {
+  indexeddb_test(upgrade_callback, t => t.done(), description);
+}
+
+// Key that throws during conversion.
+function throwing_key(name) {
+  const throws = [];
+  throws.length = 1;
+  const err = new Error('throwing from getter');
+  err.name = name;
+  Object.defineProperty(throws, '0', {
+    get: function() {
+      throw err;
+    },
+    enumerable: true,
+  });
+  return [throws, err];
+}
+
+const valid_key = [];
+const invalid_key = {};
+
+// Calls method on receiver with the specified number of args (default 1)
+// and asserts that the method fails appropriately (rethrowing if
+// conversion throws, or DataError if not a valid key), and that
+// the first argument is fully processed before the second argument
+// (if appropriate).
+function check_method(receiver, method, args) {
+  args = args || 1;
+  if (args < 2) {
+    const [key, err] = throwing_key('getter');
+    assert_throws_exactly(err, () => {
+      receiver[method](key);
+    }, 'key conversion with throwing getter should rethrow');
+
+    assert_throws_dom('DataError', () => {
+      receiver[method](invalid_key);
+    }, 'key conversion with invalid key should throw DataError');
+  } else {
+    const [key1, err1] = throwing_key('getter 1');
+    const [key2, err2] = throwing_key('getter 2');
+    assert_throws_exactly(err1, () => {
+      receiver[method](key1, key2);
+    }, 'first key conversion with throwing getter should rethrow');
+
+    assert_throws_dom('DataError', () => {
+      receiver[method](invalid_key, key2);
+    }, 'first key conversion with invalid key should throw DataError');
+
+    assert_throws_exactly(err2, () => {
+      receiver[method](valid_key, key2);
+    }, 'second key conversion with throwing getter should rethrow');
+
+    assert_throws_dom('DataError', () => {
+      receiver[method](valid_key, invalid_key);
+    }, 'second key conversion with invalid key should throw DataError');
+  }
+}
+
+// Static key comparison utility on IDBFactory.
+test(
+    t => check_method(indexedDB, 'cmp', 2),
+    'IDBFactory cmp() static with throwing/invalid keys');
+
+// Continue methods on IDBCursor.
+indexeddb_upgrade_only_test((t, db) => {
+  const store = db.createObjectStore('store');
+  store.put('a', 1).onerror = t.unreached_func('put should succeed');
+
+  const request = store.openCursor();
+  request.onerror = t.unreached_func('openCursor should succeed');
+  request.onsuccess = t.step_func(() => {
+    const cursor = request.result;
+    assert_not_equals(cursor, null, 'cursor should find a value');
+    check_method(cursor, 'continue');
+  });
+}, 'IDBCursor continue() method with throwing/invalid keys');
+
+indexeddb_upgrade_only_test((t, db) => {
+  const store = db.createObjectStore('store');
+  const index = store.createIndex('index', 'prop');
+  store.put({prop: 'a'}, 1).onerror = t.unreached_func('put should succeed');
+
+  const request = index.openCursor();
+  request.onerror = t.unreached_func('openCursor should succeed');
+  request.onsuccess = t.step_func(() => {
+    const cursor = request.result;
+    assert_not_equals(cursor, null, 'cursor should find a value');
+
+    check_method(cursor, 'continuePrimaryKey', 2);
+  });
+}, null, 'IDBCursor continuePrimaryKey() method with throwing/invalid keys');
+
+// Mutation methods on IDBCursor.
+indexeddb_upgrade_only_test((t, db) => {
+  const store = db.createObjectStore('store', {keyPath: 'prop'});
+  store.put({prop: 1}).onerror = t.unreached_func('put should succeed');
+
+  const request = store.openCursor();
+  request.onerror = t.unreached_func('openCursor should succeed');
+  request.onsuccess = t.step_func(() => {
+    const cursor = request.result;
+    assert_not_equals(cursor, null, 'cursor should find a value');
+
+    const value = {};
+    let err;
+    [value.prop, err] = throwing_key('getter');
+    assert_throws_exactly(err, () => {
+      cursor.update(value);
+    }, 'throwing getter should rethrow during clone');
+
+    // Throwing from the getter during key conversion is
+    // not possible since (1) a clone is used, (2) only own
+    // properties are cloned, and (3) only own properties
+    // are used for key path evaluation.
+
+    value.prop = invalid_key;
+    assert_throws_dom('DataError', () => {
+      cursor.update(value);
+    }, 'key conversion with invalid key should throw DataError');
+  });
+}, 'IDBCursor update() method with throwing/invalid keys');
+
+// Static constructors on IDBKeyRange
+['only', 'lowerBound', 'upperBound'].forEach((method) => {
+  test(
+      t => check_method(IDBKeyRange, method),
+      'IDBKeyRange ' + method + '() static with throwing/invalid keys');
+});
+
+test(
+    t => check_method(IDBKeyRange, 'bound', 2),
+    'IDBKeyRange bound() static with throwing/invalid keys');
+
+// Insertion methods on IDBObjectStore.
+['add', 'put'].forEach((method) => {
+  indexeddb_upgrade_only_test((t, db) => {
+    const out_of_line = db.createObjectStore('out-of-line keys');
+    const in_line = db.createObjectStore('in-line keys', {keyPath: 'prop'});
+    let [key, err] = throwing_key('getter');
+    assert_throws_exactly(err, () => {
+      out_of_line[method]('value', key);
+    }, 'key conversion with throwing getter should rethrow');
+
+    assert_throws_dom('DataError', () => {
+      out_of_line[method]('value', invalid_key);
+    }, 'key conversion with invalid key should throw DataError');
+
+    const value = {};
+    [value.prop, err] = throwing_key('getter');
+    assert_throws_exactly(err, () => {
+      in_line[method](value);
+    }, 'throwing getter should rethrow during clone');
+
+    // Throwing from the getter during key conversion is
+    // not possible since (1) a clone is used, (2) only own
+    // properties are cloned, and (3) only own properties
+    // are used for key path evaluation.
+
+    value.prop = invalid_key;
+    assert_throws_dom('DataError', () => {
+      in_line[method](value);
+    }, 'key conversion with invalid key should throw DataError');
+  }, `IDBObjectStore ${method}() method with throwing/invalid keys`);
+});
+
+// Generic (key-or-key-path) methods on IDBObjectStore.
+['delete',
+ 'get',
+ 'getKey',
+ 'getAll',
+ 'getAllKeys',
+ 'count',
+ 'openCursor',
+ 'openKeyCursor',
+].forEach(method => {
+  indexeddb_upgrade_only_test((t, db) => {
+    const store = db.createObjectStore('store');
+
+    check_method(store, method);
+  }, `IDBObjectStore ${method}() method with throwing/invalid keys`);
+});
+
+// Generic (key-or-key-path) methods on IDBIndex.
+['get',
+ 'getKey',
+ 'getAll',
+ 'getAllKeys',
+ 'count',
+ 'openCursor',
+ 'openKeyCursor',
+].forEach((method) => {
+  indexeddb_upgrade_only_test((t, db) => {
+    const store = db.createObjectStore('store');
+    const index = store.createIndex('index', 'keyPath');
+
+    check_method(index, method);
+  }, `IDBIndex ${method}() method with throwing/invalid keys`);
+});
diff --git a/tests/wpt/tests/IndexedDB/key-conversion-exceptions.htm b/tests/wpt/tests/IndexedDB/key-conversion-exceptions.htm
deleted file mode 100644
index 9fdab58eb12..00000000000
--- a/tests/wpt/tests/IndexedDB/key-conversion-exceptions.htm
+++ /dev/null
@@ -1,199 +0,0 @@
-<!doctype html>
-<meta charset=utf-8>
-<title>IndexedDB: Exceptions thrown during key conversion</title>
-<meta name=timeout content=long>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-<script>
-
-// Convenience function for tests that only need to run code in onupgradeneeded.
-function indexeddb_upgrade_only_test(upgrade_callback, description) {
-  indexeddb_test(upgrade_callback, t => { t.done(); }, description);
-}
-
-// Key that throws during conversion.
-function throwing_key(name) {
-    var throws = [];
-    throws.length = 1;
-    const err = new Error('throwing from getter');
-    err.name = name;
-    Object.defineProperty(throws, '0', {get: function() {
-        throw err;
-    }, enumerable: true});
-    return [throws, err];
-}
-
-var valid_key = [];
-var invalid_key = {};
-
-// Calls method on receiver with the specified number of args (default 1)
-// and asserts that the method fails appropriately (rethrowing if
-// conversion throws, or DataError if not a valid key), and that
-// the first argument is fully processed before the second argument
-// (if appropriate).
-function check_method(receiver, method, args) {
-    args = args || 1;
-    if (args < 2) {
-        const [key, err] = throwing_key('getter');
-        assert_throws_exactly(err, () => {
-            receiver[method](key);
-        }, 'key conversion with throwing getter should rethrow');
-
-        assert_throws_dom('DataError', () => {
-            receiver[method](invalid_key);
-        }, 'key conversion with invalid key should throw DataError');
-    } else {
-        const [key1, err1] = throwing_key('getter 1');
-        const [key2, err2] = throwing_key('getter 2');
-        assert_throws_exactly(err1, () => {
-            receiver[method](key1, key2);
-        }, 'first key conversion with throwing getter should rethrow');
-
-        assert_throws_dom('DataError', () => {
-            receiver[method](invalid_key, key2);
-        }, 'first key conversion with invalid key should throw DataError');
-
-        assert_throws_exactly(err2, () => {
-            receiver[method](valid_key, key2);
-        }, 'second key conversion with throwing getter should rethrow');
-
-        assert_throws_dom('DataError', () => {
-            receiver[method](valid_key, invalid_key);
-        }, 'second key conversion with invalid key should throw DataError');
-    }
-}
-
-// Static key comparison utility on IDBFactory.
-test(t => {
-    check_method(indexedDB, 'cmp', 2);
-}, 'IDBFactory cmp() static with throwing/invalid keys');
-
-// Continue methods on IDBCursor.
-indexeddb_upgrade_only_test((t, db) => {
-    var store = db.createObjectStore('store');
-    store.put('a', 1).onerror = t.unreached_func('put should succeed');
-
-    var request = store.openCursor();
-    request.onerror = t.unreached_func('openCursor should succeed');
-    request.onsuccess = t.step_func(() => {
-        var cursor = request.result;
-        assert_not_equals(cursor, null, 'cursor should find a value');
-        check_method(cursor, 'continue');
-    });
-}, 'IDBCursor continue() method with throwing/invalid keys');
-
-indexeddb_upgrade_only_test((t, db) => {
-    var store = db.createObjectStore('store');
-    var index = store.createIndex('index', 'prop');
-    store.put({prop: 'a'}, 1).onerror = t.unreached_func('put should succeed');
-
-    var request = index.openCursor();
-    request.onerror = t.unreached_func('openCursor should succeed');
-    request.onsuccess = t.step_func(() => {
-        var cursor = request.result;
-        assert_not_equals(cursor, null, 'cursor should find a value');
-
-        check_method(cursor, 'continuePrimaryKey', 2);
-    });
-}, null, 'IDBCursor continuePrimaryKey() method with throwing/invalid keys');
-
-// Mutation methods on IDBCursor.
-indexeddb_upgrade_only_test((t, db) => {
-    var store = db.createObjectStore('store', {keyPath: 'prop'});
-    store.put({prop: 1}).onerror = t.unreached_func('put should succeed');
-
-    var request = store.openCursor();
-    request.onerror = t.unreached_func('openCursor should succeed');
-    request.onsuccess = t.step_func(() => {
-        var cursor = request.result;
-        assert_not_equals(cursor, null, 'cursor should find a value');
-
-        var value = {};
-        var err;
-        [value.prop, err] = throwing_key('getter');
-        assert_throws_exactly(err, () => {
-            cursor.update(value);
-        }, 'throwing getter should rethrow during clone');
-
-        // Throwing from the getter during key conversion is
-        // not possible since (1) a clone is used, (2) only own
-        // properties are cloned, and (3) only own properties
-        // are used for key path evaluation.
-
-        value.prop = invalid_key;
-        assert_throws_dom('DataError', () => {
-            cursor.update(value);
-        }, 'key conversion with invalid key should throw DataError');
-    });
-}, 'IDBCursor update() method with throwing/invalid keys');
-
-// Static constructors on IDBKeyRange
-['only', 'lowerBound', 'upperBound'].forEach(method => {
-    test(t => {
-        check_method(IDBKeyRange, method);
-    }, 'IDBKeyRange ' + method + '() static with throwing/invalid keys');
-});
-
-test(t => {
-    check_method(IDBKeyRange, 'bound', 2);
-}, 'IDBKeyRange bound() static with throwing/invalid keys');
-
-// Insertion methods on IDBObjectStore.
-['add', 'put'].forEach(method => {
-    indexeddb_upgrade_only_test((t, db) => {
-        var out_of_line = db.createObjectStore('out-of-line keys');
-        var in_line = db.createObjectStore('in-line keys', {keyPath: 'prop'});
-        var [key, err] = throwing_key('getter');
-        assert_throws_exactly(err, () => {
-            out_of_line[method]('value', key);
-        }, 'key conversion with throwing getter should rethrow');
-
-        assert_throws_dom('DataError', () => {
-            out_of_line[method]('value', invalid_key);
-        }, 'key conversion with invalid key should throw DataError');
-
-        var value = {};
-        [value.prop, err] = throwing_key('getter');
-        assert_throws_exactly(err, () => {
-            in_line[method](value);
-        }, 'throwing getter should rethrow during clone');
-
-        // Throwing from the getter during key conversion is
-        // not possible since (1) a clone is used, (2) only own
-        // properties are cloned, and (3) only own properties
-        // are used for key path evaluation.
-
-        value.prop = invalid_key;
-        assert_throws_dom('DataError', () => {
-            in_line[method](value);
-        }, 'key conversion with invalid key should throw DataError');
-    }, `IDBObjectStore ${method}() method with throwing/invalid keys`);
-});
-
-// Generic (key-or-key-path) methods on IDBObjectStore.
-[
-    'delete', 'get', 'getKey', 'getAll', 'getAllKeys', 'count', 'openCursor',
-    'openKeyCursor'
-].forEach(method => {
-    indexeddb_upgrade_only_test((t, db) => {
-        var store = db.createObjectStore('store');
-
-        check_method(store, method);
-    }, `IDBObjectStore ${method}() method with throwing/invalid keys`);
-});
-
-// Generic (key-or-key-path) methods on IDBIndex.
-[
-    'get', 'getKey', 'getAll', 'getAllKeys', 'count', 'openCursor',
-    'openKeyCursor'
-].forEach(method => {
-    indexeddb_upgrade_only_test((t, db) => {
-        var store = db.createObjectStore('store');
-        var index = store.createIndex('index', 'keyPath');
-
-        check_method(index, method);
-    }, `IDBIndex ${method}() method with throwing/invalid keys`);
-});
-
-</script>
diff --git a/tests/wpt/tests/IndexedDB/key_invalid.any.js b/tests/wpt/tests/IndexedDB/key_invalid.any.js
new file mode 100644
index 00000000000..2d673ed5e91
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/key_invalid.any.js
@@ -0,0 +1,134 @@
+// META: global=window,worker
+// META: title=Invalid key
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#key-construct
+
+'use strict';
+
+const invalid_key = (desc, key) => {
+  async_test(t => {
+    const db = createdb_for_multiple_tests();
+    let objStore = null;
+    let objStore2 = null;
+
+    const is_cloneable = o => {
+      try {
+        self.postMessage(o, '*');
+        return true;
+      } catch (ex) {
+        return false;
+      }
+    };
+
+    db.setTest(t).onupgradeneeded = t.step_func(e => {
+      objStore = objStore || e.target.result.createObjectStore('store');
+      assert_throws_dom('DataError', () => {
+        objStore.add('value', key);
+      });
+
+      if (is_cloneable(key)) {
+        objStore2 = objStore2 || e.target.result.createObjectStore('store2', {
+          keyPath: ['x', 'keypath'],
+        });
+        assert_throws_dom('DataError', () => {
+          objStore.add('value', key);
+        });
+      }
+      t.done();
+    });
+  }, 'Invalid key - ' + desc);
+};
+
+const fake_array = {
+  length: 0,
+  constructor: Array,
+};
+
+const ArrayClone = function() {};
+ArrayClone.prototype = Array;
+const ArrayClone_instance = new ArrayClone();
+
+// booleans
+invalid_key('true', true);
+invalid_key('false', false);
+
+// null/NaN/undefined
+invalid_key('null', null);
+invalid_key('NaN', NaN);
+invalid_key('undefined', undefined);
+invalid_key('undefined2');
+
+// functions
+invalid_key('function() {}', function() {});
+
+// objects
+invalid_key('{}', {});
+invalid_key('{ obj: 1 }', {obj: 1});
+invalid_key('Math', Math);
+invalid_key('self', self);
+invalid_key('{length:0,constructor:Array}', fake_array);
+invalid_key('Array clone’s instance', ArrayClone_instance);
+invalid_key('Array (object)', Array);
+invalid_key('String (object)', String);
+invalid_key('new String()', new String());
+invalid_key('new Number()', new Number());
+invalid_key('new Boolean()', new Boolean());
+
+// arrays
+invalid_key('[{}]', [{}]);
+invalid_key('[[], [], [], [[ Date ]]]', [[], [], [], [[Date]]]);
+invalid_key('[undefined]', [undefined]);
+invalid_key('[,1]', [, 1]);
+
+if (typeof document !== 'undefined') {
+  invalid_key(
+      'document.getElementsByTagName("script")',
+      document.getElementsByTagName('script'));
+}
+
+//  dates
+invalid_key('new Date(NaN)', new Date(NaN));
+invalid_key('new Date(Infinity)', new Date(Infinity));
+
+// regexes
+invalid_key('/foo/', /foo/);
+invalid_key('new RegExp()', new RegExp());
+
+const sparse = [];
+sparse[10] = 'hei';
+invalid_key('sparse array', sparse);
+
+const sparse2 = [];
+sparse2[0] = 1;
+sparse2[''] = 2;
+sparse2[2] = 3;
+invalid_key('sparse array 2', sparse2);
+
+invalid_key('[[1], [3], [7], [[ sparse array ]]]', [
+  [1],
+  [3],
+  [7],
+  [[sparse2]],
+]);
+
+// sparse3
+invalid_key('[1,2,3,,]', [
+  1,
+  2,
+  3,
+  ,
+]);
+
+const recursive = [];
+recursive.push(recursive);
+invalid_key('array directly contains self', recursive);
+
+const recursive2 = [];
+recursive2.push([recursive2]);
+invalid_key('array indirectly contains self', recursive2);
+
+const recursive3 = [recursive];
+invalid_key('array member contains self', recursive3);
+
+invalid_key('proxy of an array', new Proxy([1, 2, 3], {}));
diff --git a/tests/wpt/tests/IndexedDB/key_invalid.htm b/tests/wpt/tests/IndexedDB/key_invalid.htm
deleted file mode 100644
index cf649b07d05..00000000000
--- a/tests/wpt/tests/IndexedDB/key_invalid.htm
+++ /dev/null
@@ -1,131 +0,0 @@
-<!DOCTYPE html>
-<!-- Submitted from TestTWF Paris -->
-<meta charset=utf-8">
-<title>Invalid key</title>
-<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#key-construct">
-<link rel=assert title="A value is said to be a valid key if it is one of the following types: Array JavaScript objects [ECMA-262], DOMString [WEBIDL], Date [ECMA-262] or float [WEBIDL]. However Arrays are only valid keys if every item in the array is defined and is a valid key (i.e. sparse arrays can not be valid keys) and if the Array doesn't directly or indirectly contain itself. Any non-numeric properties are ignored, and thus does not affect whether the Array is a valid key. Additionally, if the value is of type float, it is only a valid key if it is not NaN, and if the value is of type Date it is only a valid key if its [[PrimitiveValue]] internal property, as defined by [ECMA-262], is not NaN. Conforming user agents must support all valid keys as keys.">
-<!-- original author -->
-<link rel=author href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
-<!-- some additions by Baptiste Fontaine (batifon@yahoo.fr) -->
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<script src=resources/support.js></script>
-
-<script>
-    var db        = createdb_for_multiple_tests(),
-        // cache for ObjectStores
-        objStore  = null,
-        objStore2 = null;
-
-    function is_cloneable(o) {
-        try {
-            self.postMessage(o, '*');
-            return true;
-        } catch (ex) {
-            return false;
-        }
-    }
-
-    function invalid_key(desc, key) {
-        var t = async_test(document.title + " - " + desc);
-
-        // set the current test, and run it
-        db.setTest(t).onupgradeneeded = function(e) {
-            objStore = objStore || e.target.result.createObjectStore("store");
-            assert_throws_dom('DataError', function() {
-                objStore.add("value", key);
-            });
-
-            if (is_cloneable(key)) {
-                objStore2 = objStore2 || e.target.result.createObjectStore("store2", { keyPath: ["x", "keypath"] });
-                assert_throws_dom('DataError', function() {
-                    objStore2.add({ x: "value", keypath: key });
-                });
-            }
-            this.done();
-        };
-    }
-
-    var fake_array = {
-        length      : 0,
-        constructor : Array
-    };
-
-    var ArrayClone = function(){};
-    ArrayClone.prototype = Array;
-    var ArrayClone_instance = new ArrayClone();
-
-    // booleans
-    invalid_key( 'true'  , true );
-    invalid_key( 'false' , false );
-
-    // null/NaN/undefined
-    invalid_key( 'null'      , null );
-    invalid_key( 'NaN'       , NaN );
-    invalid_key( 'undefined' , undefined );
-    invalid_key( 'undefined2');
-
-    // functions
-    invalid_key( 'function() {}', function(){} );
-
-    // objects
-    invalid_key( '{}'                           , {} );
-    invalid_key( '{ obj: 1 }'                   , { obj: 1 });
-    invalid_key( 'Math'                         , Math );
-    invalid_key( 'window'                       , window );
-    invalid_key( '{length:0,constructor:Array}' , fake_array );
-    invalid_key( 'Array clone’s instance'       , ArrayClone_instance );
-    invalid_key( 'Array (object)'               , Array );
-    invalid_key( 'String (object)'              , String );
-    invalid_key( 'new String()'                 , new String() );
-    invalid_key( 'new Number()'                 , new Number() );
-    invalid_key( 'new Boolean()'                , new Boolean() );
-
-    // arrays
-    invalid_key( '[{}]'                     , [{}] );
-    invalid_key( '[[], [], [], [[ Date ]]]' , [ [], [], [], [[ Date ]] ] );
-    invalid_key( '[undefined]'              , [undefined] );
-    invalid_key( '[,1]'                     , [,1] );
-
-    invalid_key( 'document.getElements'
-                +'ByTagName("script")'      , document.getElementsByTagName("script") );
-
-    //  dates
-    invalid_key( 'new Date(NaN)'      , new Date(NaN) );
-    invalid_key( 'new Date(Infinity)' , new Date(Infinity) );
-
-    // regexes
-    invalid_key( '/foo/'        , /foo/ );
-    invalid_key( 'new RegExp()' , new RegExp() );
-
-    var sparse = [];
-    sparse[10] = "hei";
-    invalid_key('sparse array', sparse);
-
-    var sparse2 = [];
-    sparse2[0]  = 1;
-    sparse2[""] = 2;
-    sparse2[2]  = 3;
-    invalid_key('sparse array 2', sparse2);
-
-    invalid_key('[[1], [3], [7], [[ sparse array ]]]', [ [1], [3], [7], [[ sparse2 ]] ]);
-
-    // sparse3
-    invalid_key( '[1,2,3,,]', [1,2,3,,] );
-
-    var recursive = [];
-    recursive.push(recursive);
-    invalid_key('array directly contains self', recursive);
-
-    var recursive2 = [];
-    recursive2.push([recursive2]);
-    invalid_key('array indirectly contains self', recursive2);
-
-    var recursive3 = [recursive];
-    invalid_key('array member contains self', recursive3);
-
-    invalid_key('proxy of an array', new Proxy([1,2,3], {}));
-
-</script>
-
-<div id=log></div>
diff --git a/tests/wpt/tests/IndexedDB/key_valid.any.js b/tests/wpt/tests/IndexedDB/key_valid.any.js
new file mode 100644
index 00000000000..8c015d331ba
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/key_valid.any.js
@@ -0,0 +1,68 @@
+// META: global=window,worker
+// META: title=Valid key
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#key-construct
+
+'use strict';
+
+const valid_key = (desc, key) => {
+  async_test(t => {
+    let db;
+    const open_rq = createdb(t);
+    open_rq.onupgradeneeded = t.step_func(e => {
+      db = e.target.result;
+      const store = db.createObjectStore('store');
+      assert_true(store.add('value', key) instanceof IDBRequest);
+
+      const store2 = db.createObjectStore('store2', {
+        keyPath: ['x', 'keypath'],
+      });
+      assert_true(store2.add({x: 'v', keypath: key}) instanceof IDBRequest);
+    });
+
+    open_rq.onsuccess = t.step_func(e => {
+      const rq =
+          db.transaction('store', 'readonly').objectStore('store').get(key);
+      rq.onsuccess = t.step_func(e => {
+        assert_equals(e.target.result, 'value');
+        const rq2 =
+            db.transaction('store2', 'readonly').objectStore('store2').get([
+              'v', key
+            ]);
+        rq2.onsuccess = t.step_func(e => {
+          assert_equals(e.target.result.x, 'v');
+          assert_key_equals(e.target.result.keypath, key);
+          t.done();
+        });
+      });
+    });
+  }, 'Valid key - ' + desc);
+};
+
+// Date
+valid_key('new Date()', new Date());
+valid_key('new Date(0)', new Date(0));
+
+// Array
+valid_key('[]', []);
+valid_key('new Array()', new Array());
+
+valid_key('["undefined"]', ['undefined']);
+
+// Float
+valid_key('Infinity', Infinity);
+valid_key('-Infinity', -Infinity);
+valid_key('0', 0);
+valid_key('1.5', 1.5);
+valid_key('3e38', 3e38);
+valid_key('3e-38', 3e38);
+
+// String
+valid_key('"foo"', 'foo');
+valid_key('"\\n"', '\n');
+valid_key('""', '');
+valid_key('"\\""', '"');
+valid_key('"\\u1234"', '\u1234');
+valid_key('"\\u0000"', '\u0000');
+valid_key('"NaN"', 'NaN');
diff --git a/tests/wpt/tests/IndexedDB/key_valid.html b/tests/wpt/tests/IndexedDB/key_valid.html
deleted file mode 100644
index 0cca54cdbb3..00000000000
--- a/tests/wpt/tests/IndexedDB/key_valid.html
+++ /dev/null
@@ -1,75 +0,0 @@
-<!DOCTYPE html>
-<!-- Submitted from TestTWF Paris -->
-<meta charset=utf-8">
-<meta name="timeout" content="long">
-<title>Valid key</title>
-<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#key-construct">
-<link rel=assert title="A value is said to be a valid key if it is one of the following types: Array JavaScript objects [ECMA-262], DOMString [WEBIDL], Date [ECMA-262] or float [WEBIDL]. However Arrays are only valid keys if every item in the array is defined and is a valid key (i.e. sparse arrays can not be valid keys) and if the Array doesn't directly or indirectly contain itself. Any non-numeric properties are ignored, and thus does not affect whether the Array is a valid key. Additionally, if the value is of type float, it is only a valid key if it is not NaN, and if the value is of type Date it is only a valid key if its [[PrimitiveValue]] internal property, as defined by [ECMA-262], is not NaN. Conforming user agents must support all valid keys as keys.">
-<link rel=author href="mailto:batifon@yahoo.fr" title="Baptiste Fontaine">
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<script src=resources/support.js></script>
-
-<script>
-    function valid_key(desc, key) {
-        var db;
-        var t = async_test(document.title + " - " + desc);
-        var open_rq = createdb(t);
-
-        open_rq.onupgradeneeded = function(e) {
-            db = e.target.result;
-
-            store = db.createObjectStore("store");
-            assert_true(store.add('value', key) instanceof IDBRequest);
-
-            store2 = db.createObjectStore("store2", { keyPath: ["x", "keypath"] });
-            assert_true(store2.add({ x: 'v', keypath: key }) instanceof IDBRequest);
-        };
-        open_rq.onsuccess = function(e) {
-            var rq = db.transaction("store", "readonly")
-                       .objectStore("store")
-                       .get(key)
-            rq.onsuccess = t.step_func(function(e) {
-                assert_equals(e.target.result, 'value')
-                var rq = db.transaction("store2", "readonly")
-                           .objectStore("store2")
-                           .get(['v', key])
-                rq.onsuccess = t.step_func(function(e) {
-                    assert_equals(e.target.result.x, 'v');
-                    assert_key_equals(e.target.result.keypath, key);
-                    t.done()
-                })
-            })
-        }
-    }
-
-    // Date
-    valid_key( 'new Date()'    , new Date() );
-    valid_key( 'new Date(0)'   , new Date(0) );
-
-    // Array
-    valid_key( '[]'            , [] );
-    valid_key( 'new Array()'   , new Array() );
-
-    valid_key( '["undefined"]' , ['undefined'] );
-
-    // Float
-    valid_key( 'Infinity'      , Infinity );
-    valid_key( '-Infinity'     , -Infinity );
-    valid_key( '0'             , 0 );
-    valid_key( '1.5'           , 1.5 );
-    valid_key( '3e38'          , 3e38 );
-    valid_key( '3e-38'         , 3e38 );
-
-    // String
-    valid_key( '"foo"'         , "foo" );
-    valid_key( '"\\n"'         , "\n" );
-    valid_key( '""'            , "" );
-    valid_key( '"\\""'         , "\"" );
-    valid_key( '"\\u1234"'     , "\u1234" );
-    valid_key( '"\\u0000"'     , "\u0000" );
-    valid_key( '"NaN"'         , "NaN" );
-
-</script>
-
-<div id=log></div>
diff --git a/tests/wpt/tests/IndexedDB/keyorder.any.js b/tests/wpt/tests/IndexedDB/keyorder.any.js
new file mode 100644
index 00000000000..fe3eb11fa92
--- /dev/null
+++ b/tests/wpt/tests/IndexedDB/keyorder.any.js
@@ -0,0 +1,169 @@
+// META: global=window,worker
+// META: title=Key sort order
+// META: script=resources/support.js
+
+// Spec: https://w3c.github.io/IndexedDB/#key-construct
+
+'use strict';
+
+const global_db = createdb_for_multiple_tests();
+
+const keysort = (desc, unsorted, expected) => {
+  async_test(t => {
+    const store_name = 'store-' + Date.now() + Math.random();
+
+    // The database test
+    const open_rq = global_db.setTest(t);
+    open_rq.onupgradeneeded = t.step_func(e => {
+      const db = e.target.result;
+      const objStore = db.createObjectStore(store_name);
+
+      for (let i = 0; i < unsorted.length; i++)
+        objStore.add('value', unsorted[i]);
+    });
+
+    open_rq.onsuccess = t.step_func(e => {
+      const db = e.target.result;
+      const actual_keys = [];
+      const rq =
+          db.transaction(store_name).objectStore(store_name).openCursor();
+
+      rq.onsuccess = t.step_func(e => {
+        const cursor = e.target.result;
+
+        if (cursor) {
+          actual_keys.push(cursor.key);
+          cursor.continue();
+        } else {
+          assert_key_equals(actual_keys, expected, 'keyorder array');
+          assert_equals(actual_keys.length, expected.length, 'array length');
+
+          t.done();
+        }
+      });
+    });
+  }, `Database readback sort - ${desc}`);
+
+  // The IDBKey.cmp test
+  test(() => {
+    const sorted = unsorted.slice(0).sort((a, b) => indexedDB.cmp(a, b));
+    assert_key_equals(sorted, expected, 'sorted array');
+  }, `IDBKey.cmp sort - ${desc}`);
+};
+
+const now = new Date();
+const one_sec_ago = new Date(now - 1000);
+const one_min_future = new Date(now.getTime() + 1000 * 60);
+
+keysort('String < Array', [[0], 'yo', '', []], ['', 'yo', [], [0]]);
+
+keysort(
+    'float < String', [Infinity, 'yo', 0, '', 100],
+    [0, 100, Infinity, '', 'yo']);
+
+keysort(
+    'float < Date', [now, 0, 9999999999999, -0.22],
+    [-0.22, 0, 9999999999999, now]);
+
+keysort(
+    'float < Date < String < Array', [[], '', now, [0], '-1', 0, 9999999999999],
+    [0, 9999999999999, now, '', '-1', [], [0]]);
+
+keysort(
+    'Date(1 sec ago) < Date(now) < Date(1 minute in future)',
+    [now, one_sec_ago, one_min_future], [one_sec_ago, now, one_min_future]);
+
+keysort(
+    '-1.1 < 1 < 1.01337 < 1.013373 < 2', [1.013373, 2, 1.01337, -1.1, 1],
+    [-1.1, 1, 1.01337, 1.013373, 2]);
+
+keysort(
+    '-Infinity < -0.01 < 0 < Infinity', [0, -0.01, -Infinity, Infinity],
+    [-Infinity, -0.01, 0, Infinity]);
+
+keysort(
+    '"" < "a" < "ab" < "b" < "ba"', ['a', 'ba', '', 'b', 'ab'],
+    ['', 'a', 'ab', 'b', 'ba']);
+
+keysort(
+    'Arrays', [[[0]], [0], [], [0, 0], [0, [0]]],
+    [[], [0], [0, 0], [0, [0]], [[0]]]);
+
+const big_array = [];
+const bigger_array = [];
+for (let i = 0; i < 10000; i++) {
+  big_array.push(i);
+  bigger_array.push(i);
+}
+bigger_array.push(0);
+
+keysort(
+    'Array.length: 10,000 < Array.length: 10,001',
+    [bigger_array, [0, 2, 3], [0], [9], big_array],
+    [[0], big_array, bigger_array, [0, 2, 3], [9]]);
+
+keysort(
+    'Infinity inside arrays',
+    [
+      [Infinity, 1],
+      [Infinity, Infinity],
+      [1, 1],
+      [1, Infinity],
+      [1, -Infinity],
+      [-Infinity, Infinity],
+    ],
+    [
+      [-Infinity, Infinity],
+      [1, -Infinity],
+      [1, 1],
+      [1, Infinity],
+      [Infinity, 1],
+      [Infinity, Infinity],
+    ]);
+
+keysort(
+    'Test different stuff at once',
+    [
+      now,
+      [0, []],
+      'test',
+      1,
+      ['a', [1, [-1]]],
+      ['b', 'a'],
+      [0, 2, 'c'],
+      ['a', [1, 2]],
+      [],
+      [0, [], 3],
+      ['a', 'b'],
+      [1, 2],
+      ['a', 'b', 'c'],
+      one_sec_ago,
+      [0, 'b', 'c'],
+      Infinity,
+      -Infinity,
+      2.55,
+      [0, now],
+      [1],
+    ],
+    [
+      -Infinity,
+      1,
+      2.55,
+      Infinity,
+      one_sec_ago,
+      now,
+      'test',
+      [],
+      [0, 2, 'c'],
+      [0, now],
+      [0, 'b', 'c'],
+      [0, []],
+      [0, [], 3],
+      [1],
+      [1, 2],
+      ['a', 'b'],
+      ['a', 'b', 'c'],
+      ['a', [1, 2]],
+      ['a', [1, [-1]]],
+      ['b', 'a'],
+    ]);
diff --git a/tests/wpt/tests/IndexedDB/keyorder.htm b/tests/wpt/tests/IndexedDB/keyorder.htm
deleted file mode 100644
index 7e8b3d41264..00000000000
--- a/tests/wpt/tests/IndexedDB/keyorder.htm
+++ /dev/null
@@ -1,175 +0,0 @@
-<!DOCTYPE html>
-<!-- Submitted from TestTWF Paris -->
-<meta charset="utf-8">
-<title>Key sort order</title>
-<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#key-construct">
-<link rel=assert title="For purposes of comparison, all Arrays are greater than all DOMString, Date and float values; all DOMString values are greater than all Date and float values; and all Date values are greater than all float values. Values of type float are compared to other float values numerically. Values of type Date are compared to other Date values chronologically. Values of type DOMString are compared to other values of type DOMString by using the algorithm defined by step 4 of section 11.8.5, The Abstract Relational Comparison Algorithm, of the ECMAScript Language Specification [ECMA-262]. Values of type Array are compared to other values of type Array as follows:
-
-1. Let A be the first Array value and B be the second Array value.
-2. Let length be the lesser of A's length and B's length.
-3. Let i be 0.
-4. If the ith value of A is less than the ith value of B, then A is less than B. Skip the remaining steps.
-5. If the ith value of A is greater than the ith value of B, then A is greater than B. Skip the remaining steps.
-6. Increase i by 1.
-7. If i is not equal to length, go back to step 4. Otherwise continue to next step.
-8. If A's length is less than B's length, then A is less than B. If A's length is greater than B's length, then A is greater than B. Otherwise A and B are equal.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="resources/support.js"></script>
-
-<script>
-    var global_db = createdb_for_multiple_tests();
-
-    function keysort(desc, unsorted, expected) {
-        var db,
-            t = async_test("Database readback sort - " + desc),
-            store_name = 'store-' + Date.now() + Math.random();
-
-        // The database test
-        var open_rq = global_db.setTest(t);
-        open_rq.onupgradeneeded = function(e) {
-            db = e.target.result;
-            var objStore = db.createObjectStore(store_name);
-
-            for (var i = 0; i < unsorted.length; i++)
-                objStore.add("value", unsorted[i]);
-        };
-
-        open_rq.onsuccess = function(e) {
-            var actual_keys = [],
-              rq = db.transaction(store_name)
-                     .objectStore(store_name)
-                     .openCursor();
-
-            rq.onsuccess = t.step_func(function(e) {
-                var cursor = e.target.result;
-
-                if (cursor) {
-                    actual_keys.push(cursor.key);
-                    cursor.continue();
-                }
-                else {
-                    assert_key_equals(actual_keys, expected, "keyorder array");
-                    assert_equals(actual_keys.length, expected.length, "array length");
-
-                    t.done();
-                }
-            });
-        };
-
-        // The IDBKey.cmp test
-        test(function () {
-            var sorted = unsorted.slice(0).sort(function(a, b) { return indexedDB.cmp(a, b)});
-            assert_key_equals(sorted, expected, "sorted array");
-
-        }, "IDBKey.cmp sorted - " + desc);
-    }
-
-    var now = new Date(),
-        one_sec_ago = new Date(now - 1000),
-        one_min_future = new Date(now.getTime() + (1000*60));
-
-    keysort('String < Array',
-        [ [0], "yo", "", [] ],
-        [ "", "yo", [], [0] ]);
-
-    keysort('float < String',
-        [ Infinity, "yo", 0, "", 100 ],
-        [ 0, 100, Infinity, "", "yo" ]);
-
-    keysort('float < Date',
-        [ now, 0, 9999999999999, -0.22 ],
-        [ -0.22, 0, 9999999999999, now ]);
-
-    keysort('float < Date < String < Array',
-        [ [], "", now, [0], "-1", 0, 9999999999999, ],
-        [ 0, 9999999999999, now, "", "-1", [], [0] ]);
-
-
-    keysort('Date(1 sec ago) < Date(now) < Date(1 minute in future)',
-        [ now, one_sec_ago, one_min_future ],
-        [ one_sec_ago, now, one_min_future ]);
-
-    keysort('-1.1 < 1 < 1.01337 < 1.013373 < 2',
-        [ 1.013373, 2, 1.01337, -1.1, 1 ],
-        [ -1.1, 1, 1.01337, 1.013373, 2 ]);
-
-    keysort('-Infinity < -0.01 < 0 < Infinity',
-        [ 0, -0.01, -Infinity, Infinity ],
-        [ -Infinity, -0.01, 0, Infinity ]);
-
-    keysort('"" < "a" < "ab" < "b" < "ba"',
-        [ "a", "ba", "", "b", "ab" ],
-        [ "", "a", "ab", "b", "ba" ]);
-
-    keysort('Arrays',
-        [ [[0]], [0], [], [0, 0], [0, [0]] ],
-        [ [], [0], [0, 0], [0, [0]], [[0]] ]);
-
-    var big_array = [], bigger_array = [];
-    for (var i=0; i < 10000; i++) {
-        big_array.push(i);
-        bigger_array.push(i);
-    }
-    bigger_array.push(0);
-
-    keysort('Array.length: 10,000 < Array.length: 10,001',
-        [ bigger_array, [0, 2, 3], [0], [9], big_array ],
-        [ [0], big_array, bigger_array, [0, 2, 3], [9] ]);
-
-    keysort('Infinity inside arrays',
-        [ [Infinity, 1], [Infinity, Infinity], [1, 1],
-            [1, Infinity], [1, -Infinity], [-Infinity, Infinity] ],
-        [ [-Infinity, Infinity], [1, -Infinity], [1, 1],
-            [1, Infinity], [Infinity, 1], [Infinity, Infinity] ]);
-
-
-    keysort('Test different stuff at once',
-        [
-          now,
-          [0, []],
-          "test",
-          1,
-          ["a", [1, [-1]]],
-          ["b", "a"],
-          [ 0, 2, "c"],
-          ["a", [1, 2]],
-          [],
-          [0, [], 3],
-          ["a", "b"],
-          [ 1, 2 ],
-          ["a", "b", "c"],
-          one_sec_ago,
-          [ 0, "b", "c"],
-          Infinity,
-          -Infinity,
-          2.55,
-          [ 0, now ],
-          [1]
-        ],
-        [
-          -Infinity,
-          1,
-          2.55,
-          Infinity,
-          one_sec_ago,
-          now,
-          "test",
-          [],
-          [0 ,2, "c"],
-          [0, now],
-          [0, "b", "c"],
-          [0, []],
-          [0, [], 3],
-          [1],
-          [1, 2],
-          ["a", "b"],
-          ["a", "b", "c"],
-          ["a", [1, 2]],
-          ["a", [1, [-1]]],
-          ["b", "a"]
-        ]);
-
-</script>
-
-<div id="log"></div>
diff --git a/tests/wpt/tests/ai/language_detection/detector.https.tentative.any.js b/tests/wpt/tests/ai/language_detection/detector.https.tentative.any.js
index 8c02df18cbe..8e4bedd05bb 100644
--- a/tests/wpt/tests/ai/language_detection/detector.https.tentative.any.js
+++ b/tests/wpt/tests/ai/language_detection/detector.https.tentative.any.js
@@ -22,6 +22,10 @@ promise_test(async t => {
   }
 }, 'Simple LanguageDetector.detect() call');
 
+promise_test(async t => {
+  testMonitor(LanguageDetector.create);
+}, 'LanguageDetector.create() notifies its monitor on downloadprogress');
+
 promise_test(async t => {
   const controller = new AbortController();
   controller.abort();
@@ -82,19 +86,18 @@ promise_test(async t => {
       detector.measureInputUsage('hello', {signal: controller.signal});
 
   await promise_rejects_dom(t, 'AbortError', measureInputUsagePromise);
-}, 'Translator.measureInputUsage() call with an aborted signal.');
+}, 'LanguageDetector.measureInputUsage() call with an aborted signal.');
 
 promise_test(async t => {
   const detector = await LanguageDetector.create();
   await testAbortPromise(t, signal => {
     return detector.measureInputUsage('hello', {signal});
   });
-}, 'Aborting Translator.measureInputUsage().');
+}, 'Aborting LanguageDetector.measureInputUsage().');
 
 promise_test(async () => {
-  const expected_languages = ['en', 'es'];
-  const detector = await languageDetector.create({
-    expectedInputLanguages: expected_languages
-  });
-  assert_array_equals(detector.expectedInputLanguages(), expected_languages);
+  const expectedLanguages = ['en', 'es'];
+  const detector = await LanguageDetector.create(
+      {expectedInputLanguages: expectedLanguages});
+  assert_array_equals(detector.expectedInputLanguages, expectedLanguages);
 }, 'Creating LanguageDetector with expectedInputLanguages');
diff --git a/tests/wpt/tests/ai/resources/util.js b/tests/wpt/tests/ai/resources/util.js
index 49d677edae2..6433404580b 100644
--- a/tests/wpt/tests/ai/resources/util.js
+++ b/tests/wpt/tests/ai/resources/util.js
@@ -25,3 +25,33 @@ const testAbortPromise = async (t, method) => {
     await promise_rejects_exactly(t, err, anotherPromise);
   }
 };
+
+async function testMonitor(createFunc, options = {}) {
+  let created = false;
+  const progressEvents = [];
+  function monitor(m) {
+    m.addEventListener('downloadprogress', e => {
+      // No progress events should be fired after `createFunc` resolves.
+      assert_false(created);
+
+      progressEvents.push(e);
+    });
+  }
+
+  await createFunc({...options, monitor});
+  created = true;
+
+  assert_greater_than_equal(progressEvents.length, 2);
+  assert_equals(progressEvents.at(0).loaded, 0);
+  assert_equals(progressEvents.at(-1).loaded, 1);
+
+  let lastProgressEventLoaded = -1;
+  for (const progressEvent of progressEvents) {
+    assert_equals(progressEvent.total, 1);
+    assert_less_than_equal(progressEvent.loaded, progressEvent.total);
+
+    // Progress events should have monotonically increasing `loaded` values.
+    assert_greater_than(progressEvent.loaded, lastProgressEventLoaded);
+    lastProgressEventLoaded = progressEvent.loaded;
+  }
+}
diff --git a/tests/wpt/tests/ai/translator/translator_translate.tentative.https.any.js b/tests/wpt/tests/ai/translator/translator_translate.tentative.https.any.js
index 5a800c00c69..a8aad5e03e1 100644
--- a/tests/wpt/tests/ai/translator/translator_translate.tentative.https.any.js
+++ b/tests/wpt/tests/ai/translator/translator_translate.tentative.https.any.js
@@ -108,39 +108,9 @@ promise_test(async t => {
 }, 'Aborting Translator.translate().');
 
 promise_test(async t => {
-  let monitorCalled = false;
-  let createdTranslator = false;
-  const progressEvents = [];
-  function monitor(m) {
-    monitorCalled = true;
-
-    m.addEventListener('downloadprogress', e => {
-      // No progress events should have been fired after we've created the
-      // translator.
-      assert_false(createdTranslator);
-
-      progressEvents.push(e);
-    });
-  }
-
-  await createTranslator({sourceLanguage: 'en', targetLanguage: 'ja', monitor});
-  createdTranslator = true;
-
-  // Monitor callback must be called.
-  assert_true(monitorCalled);
-
-  // Must have at least 2 progress events, one for 0 and one for 1.
-  assert_greater_than_equal(progressEvents.length, 2);
-
-  // 0 should be the first event and 1 should be the last event.
-  assert_equals(progressEvents.at(0).loaded, 0);
-  assert_equals(progressEvents.at(-1).loaded, 1);
-
-  // All progress events must have a total of 1.
-  for (const progressEvent of progressEvents) {
-    assert_equals(progressEvent.total, 1);
-  }
-}, 'Translator.create() monitor option is called correctly.');
+  await testMonitor(
+      createTranslator, {sourceLanguage: 'en', targetLanguage: 'ja'});
+}, 'Translator.create() notifies its monitor on downloadprogress');
 
 promise_test(async t => {
   const translator =
diff --git a/tests/wpt/tests/content-security-policy/navigation/to-javascript-parent-initiated-child-csp.html b/tests/wpt/tests/content-security-policy/navigation/to-javascript-parent-initiated-child-csp.html
index 41945fa460f..41c57c6e046 100644
--- a/tests/wpt/tests/content-security-policy/navigation/to-javascript-parent-initiated-child-csp.html
+++ b/tests/wpt/tests/content-security-policy/navigation/to-javascript-parent-initiated-child-csp.html
@@ -24,7 +24,7 @@
 
   const kIframeURLPath = "support/frame-with-csp.sub.html";
 
-  // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/Sources#unsafe-inline
+  // https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Content-Security-Policy#unsafe-inline
   document.getElementById("iframeWithScriptSrcUnsafeInline").src =
     encodeURIWithApostrophes(kIframeURLPath + "?csp=script-src 'unsafe-inline'");
   document.getElementById("iframeWithScriptSrcNone").src =
diff --git a/tests/wpt/tests/cookie-store/cookieStore_special_names.https.any.js b/tests/wpt/tests/cookie-store/cookieStore_special_names.https.any.js
index 6b18c4f0668..e2a3df7fe33 100644
--- a/tests/wpt/tests/cookie-store/cookieStore_special_names.https.any.js
+++ b/tests/wpt/tests/cookie-store/cookieStore_special_names.https.any.js
@@ -62,3 +62,33 @@ promise_test(async testCase => {
     }
     assert_true(exceptionThrown, "No exception thrown.");
 }, 'cookieStore.set with malformed name.');
+
+promise_test(async testCase => {
+  // Nameless cookies cannot have a __Host- prefix
+  await cookieStore.delete('');
+
+  const currentUrl = new URL(self.location.href);
+  const currentDomain = currentUrl.hostname;
+
+  await promise_rejects_js(testCase, TypeError, cookieStore.set(
+      { name: '',
+        value: '__Host-nameless-cookie',
+        domain: `.${currentDomain}` }));
+  const cookie = await cookieStore.get('');
+  assert_equals(cookie, null);
+}, 'cookieStore.set a nameless cookie cannot have __Host- prefix');
+
+promise_test(async testCase => {
+  // Nameless cookies cannot have a __Secure- prefix
+  await cookieStore.delete('');
+
+  const currentUrl = new URL(self.location.href);
+  const currentDomain = currentUrl.hostname;
+
+  await promise_rejects_js(testCase, TypeError, cookieStore.set(
+      { name: '',
+        value: '__Secure-nameless-cookie',
+        domain: `.${currentDomain}` }));
+  const cookie = await cookieStore.get('');
+  assert_equals(cookie, null);
+}, 'cookieStore.set a nameless cookie cannot have __Secure- prefix');
diff --git a/tests/wpt/tests/cookies/partitioned-cookies/partitioned-cookies-parallel-iframes.embed.tentative.https.html b/tests/wpt/tests/cookies/partitioned-cookies/partitioned-cookies-parallel-iframes.embed.tentative.https.html
index 68de567afee..e92a15bcc29 100644
--- a/tests/wpt/tests/cookies/partitioned-cookies/partitioned-cookies-parallel-iframes.embed.tentative.https.html
+++ b/tests/wpt/tests/cookies/partitioned-cookies/partitioned-cookies-parallel-iframes.embed.tentative.https.html
@@ -102,6 +102,9 @@ promise_test( async() => {
   assert_false(iframe2.contentWindow.document.cookie.includes(partitionedCookie),
       iframe2.contentWindow.document.cookie);
 
+  erase_cookie_from_js("partitionedCookie", "Secure; Path=/; SameSite=None; Partitioned");
+  erase_cookie_from_js("second", "Secure; Path=/; SameSite=None; Partitioned");
+
 }, "Partitioned cookies set in same-site contexts are available in other same-site documents.");
 </script>
 </body>
diff --git a/tests/wpt/tests/css/CSS2/linebox/animations/line-height-interpolation.html b/tests/wpt/tests/css/CSS2/linebox/animations/line-height-interpolation.html
index a0570f82a90..39b768541d7 100644
--- a/tests/wpt/tests/css/CSS2/linebox/animations/line-height-interpolation.html
+++ b/tests/wpt/tests/css/CSS2/linebox/animations/line-height-interpolation.html
@@ -183,4 +183,21 @@ test_no_interpolation({
   from: '14q',
   to: 'normal',
 });
+
+test_no_interpolation({
+  property: 'line-height',
+  from: '1',
+  to: '200%',
+});
+
+test_interpolation({
+  property: 'line-height',
+  from: '100%',
+  to: '200%',
+}, [
+  {at: 0, expect: '100%'},
+  {at: 0.3, expect: '130%'},
+  {at: 0.6, expect: '160%'},
+  {at: 1, expect: '200%'},
+]);
 </script>
diff --git a/tests/wpt/tests/css/css-anchor-position/anchor-position-005-print-ref.html b/tests/wpt/tests/css/css-anchor-position/anchor-position-005-print-ref.html
index 94a1f8e55d3..2c8824bbc35 100644
--- a/tests/wpt/tests/css/css-anchor-position/anchor-position-005-print-ref.html
+++ b/tests/wpt/tests/css/css-anchor-position/anchor-position-005-print-ref.html
@@ -1,5 +1,10 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <p>There should be a green square below, and no red.</p>
 <div style="width:100px; height:100px; background:green;"></div>
 
diff --git a/tests/wpt/tests/css/css-anchor-position/anchor-position-005-print.html b/tests/wpt/tests/css/css-anchor-position/anchor-position-005-print.html
index eeae841405a..98c663e3918 100644
--- a/tests/wpt/tests/css/css-anchor-position/anchor-position-005-print.html
+++ b/tests/wpt/tests/css/css-anchor-position/anchor-position-005-print.html
@@ -3,6 +3,11 @@
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <link rel="help" href="https://drafts.csswg.org/css-anchor-1/#anchor-pos">
 <link rel="match" href="anchor-position-005-print-ref.html">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <p>There should be a green square below, and no red.</p>
 <div style="width:100px; height:100px; background:red;">
   <div style="anchor-name:--first; width:50px; height:100px; background:green;"></div>
diff --git a/tests/wpt/tests/css/css-anchor-position/position-area-in-grid.html b/tests/wpt/tests/css/css-anchor-position/position-area-in-grid.html
index 85dd4f48306..b258f57bc8a 100644
--- a/tests/wpt/tests/css/css-anchor-position/position-area-in-grid.html
+++ b/tests/wpt/tests/css/css-anchor-position/position-area-in-grid.html
@@ -99,8 +99,8 @@
   }
 
   test_position_area("span-bottom span-left", {left:"auto", right:"auto", top:"auto", bottom:"auto"},
-                  {left:200, top:150, width:50, height:150});
+                  {left:100, top:150, width:150, height:150});
 
   test_position_area("span-bottom span-left", {left:"10px", right:"10px", top:"10px", bottom:"10px"},
-                  {left:210, top:160, width:30, height:130});
+                  {left:110, top:160, width:130, height:130});
 </script>
diff --git a/tests/wpt/tests/css/css-anchor-position/position-area-scrolling-006.html b/tests/wpt/tests/css/css-anchor-position/position-area-scrolling-006.html
index 0d49a030359..fb478385ef3 100644
--- a/tests/wpt/tests/css/css-anchor-position/position-area-scrolling-006.html
+++ b/tests/wpt/tests/css/css-anchor-position/position-area-scrolling-006.html
@@ -16,16 +16,11 @@
     height: 50%;
     background: cyan;
   }
-  #container.thicker > .pos {
-    border-width: thick;
-  }
 </style>
 <div id="scrollable" style="position:relative; overflow:scroll; scrollbar-width:none; width:500px; height:500px; background:yellow;">
-  <div style="width:2000px; height:2000px;">
-    <div id="container">
-      <div style="anchor-name:--anchor; margin:200px; width:50px; height:1000px; background:gray;"></div>
-      <div id="anchored" style="position-area:top left;"></div>
-    </div>
+  <div style="display: flow-root; width:2000px; height:2000px;">
+    <div style="anchor-name:--anchor; margin:200px; width:50px; height:1000px; background:gray;"></div>
+    <div id="anchored" style="position-area:top left;"></div>
   </div>
 </div>
 <script>
diff --git a/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-interpolation.html b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-interpolation.html
new file mode 100644
index 00000000000..2ba9d43cb1f
--- /dev/null
+++ b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-interpolation.html
@@ -0,0 +1,130 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>corner-shape interpolation</title>
+<link rel="help" href="https://drafts.csswg.org/css-borders-4/#corner-shape-interpolation">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/interpolation-testcommon.js"></script>
+
+<style>
+.parent {
+  corner-shape: bevel;
+  padding: 10px;
+}
+
+.target {
+  display: inline-block;
+  width: 100px;
+  height: 100px;
+  background-color: black;
+  corner-shape: bevel superellipse(3) superellipse(-2.5) square;
+}
+
+.expected {
+  background-color: green;
+}
+</style>
+<body>
+<script>
+
+function test_corner_shape_interpolation({from, to}, expected) {
+  for (const corner of ['top-left', 'top-right', 'bottom-right', 'bottom-left']) {
+    test_interpolation({property: `corner-${corner}-shape`, from, to}, expected);
+  }
+}
+
+test_corner_shape_interpolation({
+  from: 'round',
+  to: 'bevel',
+}, [
+  {at: -0.3, expect: 'superellipse(1.4)'},
+  {at: 0, expect: 'round'},
+  {at: 0.6, expect: 'superellipse(0.36)'},
+  {at: 1, expect: 'bevel'},
+  {at: 1.5, expect: 'superellipse(-0.46)'},
+]);
+test_corner_shape_interpolation({
+  from: 'initial',
+  to: 'scoop',
+}, [
+  {at: -0.3, expect: 'superellipse(1.91)'},
+  {at: 0, expect: 'round'},
+  {at: 0.5, expect: 'bevel'},
+  {at: 0.6, expect: 'superellipse(-0.18)'},
+  {at: 1, expect: 'scoop'},
+  {at: 1.5, expect: 'superellipse(-2.95)'},
+]);
+
+test_interpolation({
+  property: 'corner-top-left-shape',
+  from: 'inherit',
+  to: 'squircle',
+}, [
+  {at: -0.3, expect: 'superellipse(-0.45)'},
+  {at: 0, expect: 'bevel'},
+  {at: 0.6, expect: 'superellipse(0.98)'},
+  {at: 1, expect: 'squircle'},
+  {at: 1.5, expect: 'square'},
+]);
+test_interpolation({
+  property: 'corner-top-right-shape',
+  from: 'inherit',
+  to: 'square',
+}, [
+  {at: -0.3, expect: 'superellipse(-0.69)'},
+  {at: 0, expect: 'bevel'},
+  {at: 0.6, expect: 'superellipse(1.64)'},
+  {at: 1, expect: 'square'},
+  {at: 1.5, expect: 'square'},
+]);
+test_interpolation({
+  property: 'corner-bottom-right-shape',
+  from: 'inherit',
+  to: 'scoop',
+}, [
+  {at: -0.3, expect: 'superellipse(0.27)'},
+  {at: 0, expect: 'bevel'},
+  {at: 0.6, expect: 'superellipse(-0.56)'},
+  {at: 1, expect: 'scoop'},
+  {at: 1.5, expect: 'superellipse(-1.72)'},
+]);
+test_interpolation({
+  property: 'corner-bottom-left-shape',
+  from: 'inherit',
+  to: 'notch',
+}, [
+  {at: -0.3, expect: 'superellipse(0.69)'},
+  {at: 0, expect: 'bevel'},
+  {at: 0.6, expect: 'superellipse(-1.64)'},
+  {at: 1, expect: 'notch'},
+  {at: 1.5, expect: 'notch'},
+]);
+
+test_corner_shape_interpolation({
+  from: 'notch',
+  to: 'square',
+}, [
+  {at: -0.3, expect: 'notch'},
+  {at: 0, expect: 'notch'},
+  {at: 0.5, expect: 'bevel'},
+  {at: 0.8, expect: 'superellipse(1.64)'},
+  {at: 1, expect: 'square'},
+  {at: 1.5, expect: 'square'},
+]);
+
+
+test_corner_shape_interpolation({
+  from: 'superellipse(3)',
+  to: 'superellipse(-2)',
+}, [
+  {at: -0.3, expect: 'square'},
+  {at: 0, expect: 'superellipse(3)'},
+  {at: 0.5, expect: 'superellipse(0.16)'},
+  {at: 0.8, expect: 'superellipse(-0.9)'},
+  {at: 1, expect: 'superellipse(-2)'},
+  {at: 1.1, expect: 'superellipse(-2.99)'},
+]);
+
+</script>
+</body>
diff --git a/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-notch.html b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-notch.html
index 79f64070bd8..30acefe527f 100644
--- a/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-notch.html
+++ b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-notch.html
@@ -10,7 +10,7 @@
         height: 100px;
         border-radius: 25px;
         box-sizing: border-box;
-        corner-shape: notch superellipse(0.00001) round superellipse(0);
+        corner-shape: notch superellipse(-100) round superellipse(-infinity);
     }
 </style>
 <div class=target></div>
diff --git a/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-render-fuzzy.html b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-render-fuzzy.html
index 5c276b6d5ac..dd1a32a15ae 100644
--- a/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-render-fuzzy.html
+++ b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-render-fuzzy.html
@@ -7,19 +7,22 @@
 <meta name="variant" content="?corner-shape=scoop&border-radius=20%&border-width=20px&border-top-color=rebeccapurple&border-bottom-color=blue">
 <meta name="variant" content="?corner-shape=scoop&border-radius=20%&border-width=20px">
 <meta name="variant" content="?corner-top-left-shape=notch&border-radius=40px&border-width=10px&border-color=blue&border-left-color=yellow">
-<meta name="variant" content="?corner-shape=superellipse(0.25)&border-radius=20%&border-width=20px">
+<meta name="variant" content="?corner-shape=superellipse(-2)&border-radius=20%&border-width=20px">
 <meta name="variant" content="?corner-top-left-shape=bevel&border-radius=40px&border-width=10px">
 <meta name="variant" content="?corner-top-left-shape=scoop&corner-top-right-shape=scoop&border-radius=50%">
 <meta name="variant" content="?corner-shape=squircle&border-radius=25%&border-width=20px">
 <meta name="variant" content="?corner-shape=squircle&border-radius=25%&box-shadow=10px 10px 0 10px black">
 <meta name="variant" content="?corner-shape=squircle&border-radius=50%">
-<meta name="variant" content="?corner-shape=superellipse(0.05)&border-radius=20%&border-width=20px">
-<meta name="variant" content="?corner-shape=superellipse(40)&border-radius=20%&border-width=20px">
+<meta name="variant" content="?corner-shape=superellipse(-7)&border-radius=20%&border-width=20px">
+<meta name="variant" content="?corner-shape=superellipse(5)&border-radius=20%&border-width=20px">
 <meta name="variant" content="?corner-top-left-shape=bevel&corner-bottom-right-shape=bevel&border-radius=40px&border-width=10px">
-<meta name="variant" content="?corner-top-left-shape=superellipse(0.3)&border-radius=40%">
-<meta name="variant" content="?corner-top-left-shape=superellipse(6)&border-radius=20%&border-width=10px">
+<meta name="variant" content="?corner-top-left-shape=superellipse(-4)&border-radius=40%">
+<meta name="variant" content="?corner-top-left-shape=superellipse(2.5)&border-radius=20%&border-width=10px">
 <meta name="variant" content="?corner-top-right-shape=scoop&border-radius=20%&border-width=10px">
-<meta name="variant" content="?corner-shape=superellipse(1.8)&border-radius=40px&border-width=10px&border-left-color=purple">
+<meta name="variant" content="?corner-shape=superellipse(0.8)&border-radius=40px&border-width=10px&border-left-color=purple">
+<meta name="variant" content="?corner-shape=superellipse(3)&border-radius=40px&box-shadow=10px 10px 0 10px black">
+<meta name="variant" content="?border-radius=30%&corner-shape=superellipse(-1.5)&box-shadow=10px%2010px%200%2010px%20black">
+<meta name="variant" content="?border-radius=40%&corner-shape=notch&box-shadow=10px%2010px%200%2010px%20yellow">
 <style>
   body {
     margin: 0;
diff --git a/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-render-precise.html b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-render-precise.html
index 81cb56d341f..07aa70d070d 100644
--- a/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-render-precise.html
+++ b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-render-precise.html
@@ -6,17 +6,16 @@
 <meta name="fuzzy" content="maxDifference=0-180;totalPixels=0-350">
 <meta name="variant" content="?corner-shape=squircle&border-top-left-radius=30%">
 <meta name="variant" content="?corner-shape=squircle&border-top-right-radius=30px">
-<meta name="variant" content="?corner-shape=straight&border-bottom-left-radius=5px">
-<meta name="variant" content="?corner-shape=superellipse(5.2)&border-radius=40%">
-<meta name="variant" content="?corner-shape=superellipse(8)&border-top-right-radius=33px">
-<meta name="variant" content="?corner-top-right-shape=superellipse(0.1)&border-top-right-radius=50px">
-<meta name="variant" content="?corner-bottom-right-shape=superellipse(1.9)&border-bottom-right-radius=50%">
+<meta name="variant" content="?corner-shape=square&border-bottom-left-radius=5px">
+<meta name="variant" content="?corner-shape=superellipse(2.3)&border-radius=40%">
+<meta name="variant" content="?corner-shape=superellipse(3)&border-top-right-radius=33px">
+<meta name="variant" content="?corner-top-right-shape=superellipse(-4)&border-top-right-radius=50px">
+<meta name="variant" content="?corner-bottom-right-shape=superellipse(0.8)&border-bottom-right-radius=50%">
 <meta name="variant" content="?corner-top-left-shape=bevel&border-radius=40px">
 <meta name="variant" content="?corner-top-left-shape=scoop&border-radius=40px">
-<meta name="variant" content="?corner-top-left-shape=superellipse(0.2)&border-radius=40px">
-<meta name="variant" content="?corner-top-left-shape=superellipse(1.2)&border-radius=40px">
-<meta name="variant" content="?corner-top-left-shape=superellipse(0.8)&border-radius=40px">
-<meta name="variant" content="?corner-shape=superellipse(8)&border-radius=10px&box-shadow=10px 10px 0 10px black">
+<meta name="variant" content="?corner-top-left-shape=superellipse(-4)&border-radius=40px">
+<meta name="variant" content="?corner-top-left-shape=superellipse(0.5)&border-radius=40px">
+<meta name="variant" content="?corner-top-left-shape=superellipse(-0.5)&border-radius=40px">
 <meta name="variant" content="?corner-shape=squircle&border-top-left-radius=25%&border-width=10px">
 <meta name="variant" content="?corner-bottom-left-shape=bevel&border-bottom-left-radius=30px">
 <meta name="variant" content="?corner-top-left-shape=bevel&border-width=10px&border-color=black">
@@ -24,6 +23,8 @@
 <meta name="variant" content="?corner-bottom-left-shape=bevel&border-width=10px&border-radius=20px">
 <meta name="variant" content="?corner-bottom-right-shape=bevel&border-width=10px&border-radius=20px">
 <meta name="variant" content="?corner-bottom-right-shape=bevel&corner-bottom-left-shape=bevel">
+<meta name="variant" content="?border-top-left-radius=50%&corner-shape=superellipse(0.7)&border-left-width=30px&border-top-width=30px">
+<meta name="variant" content="?border-radius=50%&corner-shape=bevel&box-shadow=10px%2010px%200%2010px%20black">
 <style>
   body {
     margin: 0;
diff --git a/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-straight-ref.html b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-square-ref.html
similarity index 100%
rename from tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-straight-ref.html
rename to tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-square-ref.html
diff --git a/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-square.html b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-square.html
new file mode 100644
index 00000000000..13ab05cc7f6
--- /dev/null
+++ b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-square.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<head>
+<title>CSS Borders and Box Decorations 4: 'corner-shape: square'</title>
+<link rel="match" href="corner-shape-square-ref.html">
+<meta name="fuzzy" content="maxDifference=0-60;totalPixels=0-80">
+<style>
+    .target {
+        background: green;
+        width: 100px;
+        height: 100px;
+        border-radius: 25px;
+        border: 10px solid black;
+        box-sizing: border-box;
+        corner-shape: square superellipse(24) round square;
+    }
+</style>
+<div class=target></div>
diff --git a/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-straight.html b/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-straight.html
deleted file mode 100644
index 04cd37b5a31..00000000000
--- a/tests/wpt/tests/css/css-borders/tentative/corner-shape/corner-shape-straight.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!DOCTYPE html>
-<head>
-<title>CSS Borders and Box Decorations 4: 'corner-shape: straight'</title>
-<link rel="match" href="corner-shape-straight-ref.html">
-<meta name="fuzzy" content="maxDifference=0-32;totalPixels=0-32">
-<style>
-    .target {
-        background: green;
-        width: 100px;
-        height: 100px;
-        border-radius: 25px;
-        border: 10px solid black;
-        box-sizing: border-box;
-        corner-shape: straight superellipse(1200) round straight;
-    }
-</style>
-<div class=target></div>
diff --git a/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/corner-shape.js b/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/corner-shape.js
index de471f95dfc..1e242e607a0 100644
--- a/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/corner-shape.js
+++ b/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/corner-shape.js
@@ -127,7 +127,7 @@ function render_rect_with_corner_shapes(style, ctx, width, height) {
       ctx.save();
       ctx.translate(...offset);
       ctx.beginPath();
-      ctx.lineTo(params['top-right'].inner_rect[0], -spread);
+      ctx.lineTo(params['top-right'].inner_rect[0], params['top-right'].inner_rect[1]);
       draw_inner_corner_from_params(params['top-right']);
       ctx.lineTo(params['top-right'].inner_rect[2], params['top-right'].inner_rect[3])
       ctx.lineTo(params['bottom-right'].inner_rect[0], params['bottom-right'].inner_rect[1])
diff --git a/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/corner-utils.js b/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/corner-utils.js
index bacaaa8a6e4..b62fd21501b 100644
--- a/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/corner-utils.js
+++ b/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/corner-utils.js
@@ -22,13 +22,10 @@ function compute_inner_curvature(curvature, outer_length, inner_length) {
   if (curvature === 0)
     return 0;
   if (curvature < 1)
-    return 1 /
-        compute_inner_curvature(1 / curvature, outer_length, inner_length);
+    return 1 / compute_inner_curvature(1 / curvature, outer_length, inner_length);
   const target_length = (inner_length - outer_length) / Math.SQRT2;
   return Math.log(0.5) /
-      Math.log(
-          (Math.pow(0.5, 1 / curvature) * outer_length + target_length) /
-          inner_length);
+      Math.log((superellipse(curvature).x * outer_length + target_length) / inner_length);
 }
 
 /**
@@ -107,8 +104,6 @@ function resolve_corner_params(style, width, height, outset = null) {
   return Object.fromEntries(
       Object.entries(params).map(([corner, {outer, inset}]) => {
         const outer_rect = outer;
-        if (outset !== null)
-          inset = [-outset, -outset];
         const shape = style[`corner-${corner}-shape`];
         const s1 = Math.sign(outer[2] - outer[0]);
         const s2 = Math.sign(outer[3] - outer[1]);
@@ -120,7 +115,7 @@ function resolve_corner_params(style, width, height, outset = null) {
           offset.reverse();
         }
 
-        const inner_rect = [
+        let inner_rect = [
           outer_rect[0] + inner_offset[0] * offset[0],
           outer_rect[1] + inner_offset[1] * offset[1],
           outer_rect[2] + inner_offset[2] * offset[1],
@@ -128,7 +123,16 @@ function resolve_corner_params(style, width, height, outset = null) {
         ];
 
         let inner_shape = shape;
-        if (shape > 2 || shape < 0.5) {
+        if (outset) {
+          const new_width = width + outset * 2;
+          const new_height = height + outset * 2;
+          inner_rect = [
+            (outer_rect[0] / width) * new_width - outset,
+            (outer_rect[1] / height) * new_height - outset,
+            (outer_rect[2] / width) * new_width - outset,
+            (outer_rect[3] / height) * new_height - outset
+          ]
+        } else if (shape > 2 || shape < 0.5) {
           const outer_length = Math.hypot(
             outer_rect[2] - outer_rect[0], outer_rect[3] - outer_rect[1]);
           const inner_length = Math.hypot(
diff --git a/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/resolve-corner-style.js b/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/resolve-corner-style.js
index 93e5112ea40..26f18a02a33 100644
--- a/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/resolve-corner-style.js
+++ b/tests/wpt/tests/css/css-borders/tentative/corner-shape/resources/resolve-corner-style.js
@@ -3,28 +3,33 @@
 // found in the LICENSE file.
 
 const keywords = {
-  notch: 0,
-  scoop: 0.5,
-  bevel: 1,
-  round: 2,
-  squircle: 4,
-  straight: 1000,
+  notch: -16,
+  scoop: -1,
+  bevel: 0,
+  round: 1,
+  squircle: 2,
+  square: 16,
 };
 
 function resolve_corner_style(style, w, h) {
   ['top', 'bottom'].forEach((vSide) => ['left', 'right'].forEach((hSide) => {
-    let shape = style[`corner-${vSide}-${hSide}-shape`] ||
+    let shape_param = style[`corner-${vSide}-${hSide}-shape`] ||
         style['corner-shape'] || 'round';
-    const match = shape.match(/superellipse\((\.?[0-9]+(.[0-9]+)?)\)/);
-    shape = match ? +match[1] : keywords[shape];
+    const match = shape_param.match(/superellipse\((-?(infinity|[0-9]*(\.[0-9]+)?))\)/i);
+    shape_param = match ? match[1] : keywords[shape_param];
     const hWidth = parseFloat(style[`border-${hSide}-width`] || style['border-width'] || 0);
     const vWidth = parseFloat(style[`border-${vSide}-width`] || style['border-width'] || 0);
     let radius =
         style[`border-${vSide}-${hSide}-radius`] || style['border-radius'] || 0;
     if (!Array.isArray(radius))
       radius = [radius, radius];
-    if (shape > 1000)
+    let shape = 0;
+    if (shape_param >= keywords["square"] || shape_param == "infinity")
       shape = 1000;
+    else if (shape_param <= keywords["notch"] || shape_param == "-infinity")
+      shape = 0;
+    else
+     shape = Math.pow(2, shape_param);
     if (String(radius[0]).endsWith('%'))
       radius[0] = (parseFloat(radius[0]) * w) / 100;
     if (String(radius[1]).endsWith('%'))
diff --git a/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-computed.html b/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-computed.html
index 1d084e23397..e1b458fd06e 100644
--- a/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-computed.html
+++ b/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-computed.html
@@ -15,12 +15,12 @@ test_computed_value("corner-top-left-shape", "round");
 test_computed_value("corner-top-left-shape", "scoop");
 test_computed_value("corner-top-left-shape", "superellipse(5)");
 test_computed_value("corner-top-left-shape", "superellipse(0.2)");
-test_computed_value("corner-top-left-shape", "superellipse(0)", "notch");
-test_computed_value("corner-top-left-shape", "superellipse(infinity)", "straight");
-test_computed_value("corner-top-left-shape", "superellipse(2)", "round");
-test_computed_value("corner-top-left-shape", "superellipse(1)", "bevel");
-test_computed_value("corner-top-left-shape", "superellipse(4)", "squircle");
-test_computed_value("corner-top-left-shape", "superellipse( .5)", "scoop");
+test_computed_value("corner-top-left-shape", "superellipse(-infinity)", "notch");
+test_computed_value("corner-top-left-shape", "superellipse(infinity)", "square");
+test_computed_value("corner-top-left-shape", "superellipse(1)", "round");
+test_computed_value("corner-top-left-shape", "superellipse(0)", "bevel");
+test_computed_value("corner-top-left-shape", "superellipse(2)", "squircle");
+test_computed_value("corner-top-left-shape", "superellipse( -1)", "scoop");
 test_computed_value("corner-top-right-shape", "round");
 test_computed_value("corner-top-right-shape", "superellipse(5)");
 test_computed_value("corner-bottom-right-shape", "scoop");
@@ -28,14 +28,14 @@ test_computed_value("corner-bottom-left-shape", "superellipse(5)");
 test_computed_value("corner-shape", "superellipse(5) round");
 test_computed_value("corner-shape", "round");
 test_computed_value("corner-shape", "bevel superellipse(0.1) round squircle");
-test_computed_value("corner-shape", "superellipse(0.1) superellipse(3) superellipse(7) superellipse(0.1)");
+test_computed_value("corner-shape", "superellipse(-5) superellipse(3) superellipse(7) superellipse(-5.5)");
 test_computed_value("corner-shape", "round round round round", "round");
 test_computed_value("corner-shape", "round scoop");
 test_computed_value("corner-shape", "round scoop round scoop", "round scoop");
-test_computed_value("corner-shape", "bevel superellipse(2)", "bevel round");
-test_computed_value("corner-shape", "superellipse(0.5) superellipse(3) straight", "scoop superellipse(3) straight");
-test_computed_value("corner-shape", "superellipse(0.5) superellipse(3) superellipse(1)", "scoop superellipse(3) bevel");
-test_computed_value("corner-shape", "bevel superellipse(2) squircle     round", "bevel round squircle");
-test_computed_value("corner-shape", "superellipse(0.5) superellipse(3) superellipse(1) superellipse(infinity)", "scoop superellipse(3) bevel straight");
+test_computed_value("corner-shape", "bevel superellipse(1)", "bevel round");
+test_computed_value("corner-shape", "superellipse(-1) superellipse(3) square", "scoop superellipse(3) square");
+test_computed_value("corner-shape", "superellipse(-1) superellipse(3) superellipse(0)", "scoop superellipse(3) bevel");
+test_computed_value("corner-shape", "bevel superellipse(1) squircle     round", "bevel round squircle");
+test_computed_value("corner-shape", "superellipse(-1) superellipse(3) superellipse(0) superellipse(infinity)", "scoop superellipse(3) bevel square");
 
 </script>
diff --git a/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-invalid.html b/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-invalid.html
index 582617a634a..6aee773f4a4 100644
--- a/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-invalid.html
+++ b/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-invalid.html
@@ -17,6 +17,8 @@ test_invalid_value("corner-shape", "round round round round round");
 test_invalid_value("corner-shape", "superellipse(8 8)");
 test_invalid_value("corner-shape", "superellipse(,)");
 test_invalid_value("corner-shape", "superellipse(4,0.1)");
+test_invalid_value("corner-shape", "straight");
+test_invalid_value("corner-shape", "nonsense");
 test_invalid_value("corner-shape", "superellipse(foo)");
 test_invalid_value("corner-shape", "superellipse(1 abc)");
 test_invalid_value("corner-shape", "superellipse(1) / bevel");
diff --git a/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-valid.html b/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-valid.html
index 32aaa89fc5b..0ad14c81a74 100644
--- a/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-valid.html
+++ b/tests/wpt/tests/css/css-borders/tentative/parsing/corner-shape-valid.html
@@ -15,7 +15,7 @@
         test_valid_value(prop, "notch");
         test_valid_value(prop, "bevel");
         test_valid_value(prop, "squircle");
-        test_valid_value(prop, "straight");
+        test_valid_value(prop, "square");
         test_valid_value(prop, "superellipse(2)");
         test_valid_value(prop, "superellipse(.5)", "superellipse(0.5)");
         test_valid_value(prop, "superellipse(7)");
@@ -23,6 +23,9 @@
         test_valid_value(prop, "superellipse(  0)", "superellipse(0)");
         test_valid_value(prop, "superellipse(2 )", "superellipse(2)");
         test_valid_value(prop, "superellipse(infinity)");
+        test_valid_value(prop, "superellipse(-infinity)");
+        test_valid_value(prop, "superellipse(-0.5)");
+        test_valid_value(prop, "superellipse(-4)");
         test_valid_value(prop, "superellipse(calc(0.5 * 4))", "superellipse(calc(2))");
     }
 
@@ -40,7 +43,8 @@
     test_valid_value("corner-shape", "round scoop");
     test_valid_value("corner-shape", "round scoop round scoop", "round scoop");
     test_valid_value("corner-shape", "bevel superellipse(2)");
-    test_valid_value("corner-shape", "superellipse(0.5) superellipse(3) straight");
+    test_valid_value("corner-shape", "superellipse(0.5) superellipse(3) square");
+    test_valid_value("corner-shape", "superellipse(-0.5) superellipse(3) square superellipse(-30)");
     test_valid_value("corner-shape", "superellipse(0.5) superellipse(3) superellipse(1)");
     test_valid_value("corner-shape", "bevel superellipse(2) squircle     round", "bevel superellipse(2) squircle round");
     test_valid_value("corner-shape", "superellipse(0.5) superellipse(3) superellipse(1) superellipse(infinity)");
diff --git a/tests/wpt/tests/css/css-break/block-001-wm-vlr-print.html b/tests/wpt/tests/css/css-break/block-001-wm-vlr-print.html
index 6cd5ea07c7b..bfb48428dd5 100644
--- a/tests/wpt/tests/css/css-break/block-001-wm-vlr-print.html
+++ b/tests/wpt/tests/css/css-break/block-001-wm-vlr-print.html
@@ -11,6 +11,10 @@
   margin: 0.5in;
 }
 
+:root {
+  print-color-adjust: exact;
+}
+
 html,body {
   color:black; background-color:white; font:20px/1 monospace; padding:0; margin:0;
   writing-mode: vertical-lr;
diff --git a/tests/wpt/tests/css/css-break/block-001-wm-vrl-print.html b/tests/wpt/tests/css/css-break/block-001-wm-vrl-print.html
index 6e073121c6a..60ee504dd77 100644
--- a/tests/wpt/tests/css/css-break/block-001-wm-vrl-print.html
+++ b/tests/wpt/tests/css/css-break/block-001-wm-vrl-print.html
@@ -11,6 +11,10 @@
   margin: 0.5in;
 }
 
+:root {
+  print-color-adjust: exact;
+}
+
 html,body {
   color:black; background-color:white; font:20px/1 monospace; padding:0; margin:0;
   writing-mode: vertical-rl;
diff --git a/tests/wpt/tests/css/css-break/block-002-wm-vlr-print.html b/tests/wpt/tests/css/css-break/block-002-wm-vlr-print.html
index 99949623c39..d427242dc40 100644
--- a/tests/wpt/tests/css/css-break/block-002-wm-vlr-print.html
+++ b/tests/wpt/tests/css/css-break/block-002-wm-vlr-print.html
@@ -11,6 +11,10 @@
   margin: 0.5in;
 }
 
+:root {
+  print-color-adjust: exact;
+}
+
 html,body {
   color:black; background-color:white; font:20px/1 monospace; padding:0; margin:0;
   writing-mode: vertical-lr;
diff --git a/tests/wpt/tests/css/css-break/block-002-wm-vrl-print.html b/tests/wpt/tests/css/css-break/block-002-wm-vrl-print.html
index 084b5325b7a..0ca2b73012f 100644
--- a/tests/wpt/tests/css/css-break/block-002-wm-vrl-print.html
+++ b/tests/wpt/tests/css/css-break/block-002-wm-vrl-print.html
@@ -11,6 +11,10 @@
   margin: 0.5in;
 }
 
+:root {
+  print-color-adjust: exact;
+}
+
 html,body {
   color:black; background-color:white; font:20px/1 monospace; padding:0; margin:0;
   writing-mode: vertical-rl;
diff --git a/tests/wpt/tests/css/css-break/break-inside-avoid-multicol-001-print-ref.html b/tests/wpt/tests/css/css-break/break-inside-avoid-multicol-001-print-ref.html
index baf114d35c9..0e6f2500d92 100644
--- a/tests/wpt/tests/css/css-break/break-inside-avoid-multicol-001-print-ref.html
+++ b/tests/wpt/tests/css/css-break/break-inside-avoid-multicol-001-print-ref.html
@@ -10,6 +10,9 @@
     size: 5in 3in;
     margin: 0.5in;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-break/break-inside-avoid-multicol-001-print.html b/tests/wpt/tests/css/css-break/break-inside-avoid-multicol-001-print.html
index a97ac9f5cda..0398110fe3d 100644
--- a/tests/wpt/tests/css/css-break/break-inside-avoid-multicol-001-print.html
+++ b/tests/wpt/tests/css/css-break/break-inside-avoid-multicol-001-print.html
@@ -13,6 +13,9 @@
     size: 5in 3in;
     margin: 0.5in;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-break/break-nested-float-in-table-001-print-ref.html b/tests/wpt/tests/css/css-break/break-nested-float-in-table-001-print-ref.html
index 3459e25edd6..ffd4196708f 100644
--- a/tests/wpt/tests/css/css-break/break-nested-float-in-table-001-print-ref.html
+++ b/tests/wpt/tests/css/css-break/break-nested-float-in-table-001-print-ref.html
@@ -10,6 +10,10 @@
   <style>
   @page { size:5in 3in; margin:0.5in; }
 
+  :root {
+    print-color-adjust: exact;
+  }
+
   html, body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-break/break-nested-float-in-table-001-print.html b/tests/wpt/tests/css/css-break/break-nested-float-in-table-001-print.html
index e4e0a578e9a..320f28687a7 100644
--- a/tests/wpt/tests/css/css-break/break-nested-float-in-table-001-print.html
+++ b/tests/wpt/tests/css/css-break/break-nested-float-in-table-001-print.html
@@ -13,6 +13,9 @@
   <style>
   @page { size:5in 3in; margin:0.5in; }
 
+  :root {
+    print-color-adjust: exact;
+  }
   html, body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-063-print-ref.html b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-063-print-ref.html
index 4eeea8dcb59..a1fd5f401e8 100644
--- a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-063-print-ref.html
+++ b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-063-print-ref.html
@@ -6,6 +6,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-063-print.html b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-063-print.html
index 1225792abac..aa83978be20 100644
--- a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-063-print.html
+++ b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-063-print.html
@@ -8,6 +8,9 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-064-print-ref.html b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-064-print-ref.html
index bc659553edd..2ea14e37d1e 100644
--- a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-064-print-ref.html
+++ b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-064-print-ref.html
@@ -6,6 +6,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-064-print.html b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-064-print.html
index 969c3a3010b..67f52d85d64 100644
--- a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-064-print.html
+++ b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-064-print.html
@@ -8,6 +8,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-075-print-ref.html b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-075-print-ref.html
index 65b68b27e5f..fb211111e51 100644
--- a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-075-print-ref.html
+++ b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-075-print-ref.html
@@ -6,6 +6,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-075-print.html b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-075-print.html
index f1f3c79377b..92ecefb3f47 100644
--- a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-075-print.html
+++ b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-075-print.html
@@ -10,6 +10,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-076-print-ref.html b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-076-print-ref.html
index a14e3ed0162..454c5973b01 100644
--- a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-076-print-ref.html
+++ b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-076-print-ref.html
@@ -6,6 +6,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-076-print.html b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-076-print.html
index a6caab736b5..74c74262445 100644
--- a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-076-print.html
+++ b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-076-print.html
@@ -10,6 +10,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-080-print-ref.html b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-080-print-ref.html
index de6bd49c922..127ac1730fb 100644
--- a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-080-print-ref.html
+++ b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-080-print-ref.html
@@ -8,6 +8,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-080-print.html b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-080-print.html
index 4fd577cc421..31fd4a25113 100644
--- a/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-080-print.html
+++ b/tests/wpt/tests/css/css-break/flexbox/multi-line-row-flex-fragmentation-080-print.html
@@ -10,6 +10,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-060-print-ref.html b/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-060-print-ref.html
index 56c38817e42..88ab65eda66 100644
--- a/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-060-print-ref.html
+++ b/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-060-print-ref.html
@@ -6,6 +6,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-060-print.html b/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-060-print.html
index 15890801979..ea1f2d690e1 100644
--- a/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-060-print.html
+++ b/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-060-print.html
@@ -8,6 +8,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-065-print-ref.html b/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-065-print-ref.html
index 07d0c637667..86746d05c25 100644
--- a/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-065-print-ref.html
+++ b/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-065-print-ref.html
@@ -8,6 +8,9 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-065-print.html b/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-065-print.html
index 14a5dc6ac0c..99997a6e4e9 100644
--- a/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-065-print.html
+++ b/tests/wpt/tests/css/css-break/flexbox/single-line-column-flex-fragmentation-065-print.html
@@ -10,6 +10,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-042-print-ref.html b/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-042-print-ref.html
index 5f65fbaf687..80d3923e233 100644
--- a/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-042-print-ref.html
+++ b/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-042-print-ref.html
@@ -6,6 +6,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-042-print.html b/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-042-print.html
index f8a2934ac5a..6762604e534 100644
--- a/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-042-print.html
+++ b/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-042-print.html
@@ -8,6 +8,11 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+
+  :root {
+    print-color-adjust: exact;
+  }
+
   body { margin: 0; }
 
   .flexbox {
diff --git a/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-045-print-ref.html b/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-045-print-ref.html
index 07d0c637667..86746d05c25 100644
--- a/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-045-print-ref.html
+++ b/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-045-print-ref.html
@@ -8,6 +8,9 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-045-print.html b/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-045-print.html
index f51d0d161f8..c6da1a7e4e0 100644
--- a/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-045-print.html
+++ b/tests/wpt/tests/css/css-break/flexbox/single-line-row-flex-fragmentation-045-print.html
@@ -10,6 +10,9 @@
 
   <style>
   @page { size: 5in 3in; margin: 0.5in; }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-001-print-ref.html b/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-001-print-ref.html
index dd78a266f42..e48009315de 100644
--- a/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-001-print-ref.html
+++ b/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-001-print-ref.html
@@ -8,6 +8,10 @@
 <style>
 @page { size:5in 3in; margin:0.5in; }
 
+:root {
+  print-color-adjust: exact;
+}
+
 html, body {
   margin: 0;
   font: 20px/1 Ahem;
diff --git a/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-001-print.html b/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-001-print.html
index cd1026faf64..94517e917ca 100644
--- a/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-001-print.html
+++ b/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-001-print.html
@@ -11,6 +11,10 @@
 <style>
 @page { size:5in 3in; margin:0.5in; }
 
+:root {
+  print-color-adjust: exact;
+}
+
 html, body {
   margin: 0;
   font: 20px/1 Ahem;
diff --git a/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-002-print-ref.html b/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-002-print-ref.html
index cb1701418d0..205e73b6b8b 100644
--- a/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-002-print-ref.html
+++ b/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-002-print-ref.html
@@ -7,6 +7,10 @@
 <style>
 @page { size:5in 3in; margin:0.5in; }
 
+:root {
+  print-color-adjust: exact;
+}
+
 html, body {
   margin: 0;
 }
diff --git a/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-002-print.html b/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-002-print.html
index e2c6b7711ae..9692dde778d 100644
--- a/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-002-print.html
+++ b/tests/wpt/tests/css/css-break/float-with-large-margin-bottom-cross-page-002-print.html
@@ -10,6 +10,10 @@
 <style>
 @page { size:5in 3in; margin:0.5in; }
 
+:root {
+  print-color-adjust: exact;
+}
+
 html, body {
   margin: 0;
 }
diff --git a/tests/wpt/tests/css/css-break/grid/monolithic-overflow-print-ref.html b/tests/wpt/tests/css/css-break/grid/monolithic-overflow-print-ref.html
index 58cc0828d2c..d4b5629d243 100644
--- a/tests/wpt/tests/css/css-break/grid/monolithic-overflow-print-ref.html
+++ b/tests/wpt/tests/css/css-break/grid/monolithic-overflow-print-ref.html
@@ -1,5 +1,10 @@
 <!DOCTYPE html>
 <link rel="author" title="Psychpsyo" href="mailto:psychpsyo@gmail.com" />
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <p style="height: 50vh">Test passes if there is two purple rectangles at the start of both page 2 and 3 when printing the page (Ctrl+P, with "print backgrounds" enabled).</p>
 <div style="display:grid; grid-template-columns:1fr 1fr; break-before:page;">
   <div style="contain:size; height:75vh;">
diff --git a/tests/wpt/tests/css/css-break/grid/monolithic-overflow-print.html b/tests/wpt/tests/css/css-break/grid/monolithic-overflow-print.html
index 9b174caf96c..11ce95a34e7 100644
--- a/tests/wpt/tests/css/css-break/grid/monolithic-overflow-print.html
+++ b/tests/wpt/tests/css/css-break/grid/monolithic-overflow-print.html
@@ -2,6 +2,11 @@
 <link rel="author" title="Psychpsyo" href="mailto:psychpsyo@gmail.com">
 <link rel="help" href="https://issues.chromium.org/issues/327643792">
 <link rel="match" href="./monolithic-overflow-print-ref.html">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <p style="height: 50vh">Test passes if there is two purple rectangles at the start of both page 2 and 3 when printing the page (Ctrl+P, with "print backgrounds" enabled).</p>
 <div style="display:grid; grid-template-columns:1fr 1fr;">
   <div style="contain:size; height:75vh;">
diff --git a/tests/wpt/tests/css/css-break/ink-overflow-001-print.html b/tests/wpt/tests/css/css-break/ink-overflow-001-print.html
index 495153d3d42..7d7e8518999 100644
--- a/tests/wpt/tests/css/css-break/ink-overflow-001-print.html
+++ b/tests/wpt/tests/css/css-break/ink-overflow-001-print.html
@@ -9,6 +9,10 @@
   margin: 0.5in;
 }
 
+:root {
+  print-color-adjust: exact;
+}
+
 html,body {
   color:black; background-color:white; font:20px/1 monospace; padding:0; margin:0;
 }
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-001a-print-ref.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-001a-print-ref.html
index d4229ebb873..dd0e61badef 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-001a-print-ref.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-001a-print-ref.html
@@ -5,6 +5,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 .table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-001a-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-001a-print.html
index 4f2123b6487..c7300590ff1 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-001a-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-001a-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-001b-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-001b-print.html
index d445206a2b8..193a222f039 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-001b-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-001b-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-001c-print-ref.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-001c-print-ref.html
index d7778e340ab..60f4e1b9203 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-001c-print-ref.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-001c-print-ref.html
@@ -5,6 +5,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 .table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-001c-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-001c-print.html
index 4615270c400..1bf8c68ff78 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-001c-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-001c-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-001d-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-001d-print.html
index ad120c24818..27c07c87818 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-001d-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-001d-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-002a-print-ref.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-002a-print-ref.html
index d7272352a15..94777453f42 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-002a-print-ref.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-002a-print-ref.html
@@ -5,6 +5,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 .table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-002a-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-002a-print.html
index 88ea8cd6977..f7e0d4b612b 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-002a-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-002a-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-002b-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-002b-print.html
index 97e102e3cd7..a483e72a2b8 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-002b-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-002b-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-002c-print-ref.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-002c-print-ref.html
index 18c1e0d5a9b..427791d8418 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-002c-print-ref.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-002c-print-ref.html
@@ -5,6 +5,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 .table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-002c-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-002c-print.html
index 29fccdef999..183a0f7e9a5 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-002c-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-002c-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-002d-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-002d-print.html
index 67aa7624b76..66b870333f6 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-002d-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-002d-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-003a-print-ref.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-003a-print-ref.html
index bf99e5b41e2..bfd817a9411 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-003a-print-ref.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-003a-print-ref.html
@@ -5,6 +5,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 .table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-003a-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-003a-print.html
index c6190855b01..e2451f8bab9 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-003a-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-003a-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-003b-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-003b-print.html
index a1d3b21298e..451c7c81502 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-003b-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-003b-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-003c-print-ref.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-003c-print-ref.html
index 50738fbaa8a..793880e203f 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-003c-print-ref.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-003c-print-ref.html
@@ -5,6 +5,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 .table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-003c-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-003c-print.html
index 9c4f8d3873a..d907f904d60 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-003c-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-003c-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/table/table-fragmentation-003d-print.html b/tests/wpt/tests/css/css-break/table/table-fragmentation-003d-print.html
index 1903a68c58d..009ea5a97e8 100644
--- a/tests/wpt/tests/css/css-break/table/table-fragmentation-003d-print.html
+++ b/tests/wpt/tests/css/css-break/table/table-fragmentation-003d-print.html
@@ -7,6 +7,9 @@
 
 <style>
 @page { size: 5in 3in; margin: 0.5in; }
+:root {
+  print-color-adjust: exact;
+}
 body { margin: 0; }
 
 table {
diff --git a/tests/wpt/tests/css/css-break/transform-023-print-ref.html b/tests/wpt/tests/css/css-break/transform-023-print-ref.html
index 7204e1d6571..856e6435fb8 100644
--- a/tests/wpt/tests/css/css-break/transform-023-print-ref.html
+++ b/tests/wpt/tests/css/css-break/transform-023-print-ref.html
@@ -1,4 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <p>There should be a green square on the second page, and no red.</p>
 <div style="break-before:page; width:100px; height:100px; background:green;"></div>
diff --git a/tests/wpt/tests/css/css-break/transform-023-print.html b/tests/wpt/tests/css/css-break/transform-023-print.html
index 7650571abe1..53abb1939bb 100644
--- a/tests/wpt/tests/css/css-break/transform-023-print.html
+++ b/tests/wpt/tests/css/css-break/transform-023-print.html
@@ -2,6 +2,11 @@
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1371426">
 <link rel="match" href="transform-023-print-ref.html">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <p>There should be a green square on the second page, and no red.</p>
 <div style="break-before:page; width:100px; height:100px; background:red;">
   <div style="position:absolute; width:0; height:0; transform:translateX(49px);">
diff --git a/tests/wpt/tests/css/css-break/transform-024-print-ref.html b/tests/wpt/tests/css/css-break/transform-024-print-ref.html
index 766c415a1be..582794ca046 100644
--- a/tests/wpt/tests/css/css-break/transform-024-print-ref.html
+++ b/tests/wpt/tests/css/css-break/transform-024-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="height:100vh; background:yellow;">
diff --git a/tests/wpt/tests/css/css-break/transform-024-print.html b/tests/wpt/tests/css/css-break/transform-024-print.html
index 510b4c2e44f..22b6cd12075 100644
--- a/tests/wpt/tests/css/css-break/transform-024-print.html
+++ b/tests/wpt/tests/css/css-break/transform-024-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1371426">
 <link rel="match" href="transform-024-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="position:relative; z-index:1; height:100vh;">
diff --git a/tests/wpt/tests/css/css-color/WEB_FEATURES.yml b/tests/wpt/tests/css/css-color/WEB_FEATURES.yml
index a7e2044aeaa..275611f531e 100644
--- a/tests/wpt/tests/css/css-color/WEB_FEATURES.yml
+++ b/tests/wpt/tests/css/css-color/WEB_FEATURES.yml
@@ -26,3 +26,6 @@ features:
 - name: hwb
   files:
   - hwb-*
+- name: relative-color
+  files:
+  - relative-*
diff --git a/tests/wpt/tests/css/css-color/parsing/WEB_FEATURES.yml b/tests/wpt/tests/css/css-color/parsing/WEB_FEATURES.yml
index cc8273c2adc..0bb97b1e1d9 100644
--- a/tests/wpt/tests/css/css-color/parsing/WEB_FEATURES.yml
+++ b/tests/wpt/tests/css/css-color/parsing/WEB_FEATURES.yml
@@ -3,3 +3,7 @@ features:
   files:
   - "*-color-mix-*"
   - color-mix-out-of-gamut.html
+- name: relative-color
+  files:
+  - "relative-*"
+  - "*-relative-*"
diff --git a/tests/wpt/tests/css/css-conditional/container-queries/multiple-style-containers-comma-separated-queries.html b/tests/wpt/tests/css/css-conditional/container-queries/multiple-style-containers-comma-separated-queries.html
index 23ea471c417..daa64aaa42f 100644
--- a/tests/wpt/tests/css/css-conditional/container-queries/multiple-style-containers-comma-separated-queries.html
+++ b/tests/wpt/tests/css/css-conditional/container-queries/multiple-style-containers-comma-separated-queries.html
@@ -6,7 +6,7 @@
 <script src="support/cq-testcommon.js"></script>
 <style>
   #combined {
-    container-type: inline-size:
+    container-type: inline-size;
     --foo: qux;
   }
   #outer {
diff --git a/tests/wpt/tests/css/css-contain/content-visibility/content-visibility-auto-img-001-ref.html b/tests/wpt/tests/css/css-contain/content-visibility/content-visibility-auto-img-001-ref.html
new file mode 100644
index 00000000000..d47ced1c33d
--- /dev/null
+++ b/tests/wpt/tests/css/css-contain/content-visibility/content-visibility-auto-img-001-ref.html
@@ -0,0 +1,5 @@
+<!doctype HTML>
+<meta charset="utf8">
+<title>CSS Reference Case</title>
+<link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
+<img id="myImg" src="resources/dice.png">
diff --git a/tests/wpt/tests/css/css-contain/content-visibility/content-visibility-auto-img-001.html b/tests/wpt/tests/css/css-contain/content-visibility/content-visibility-auto-img-001.html
new file mode 100644
index 00000000000..ba6fdd316dc
--- /dev/null
+++ b/tests/wpt/tests/css/css-contain/content-visibility/content-visibility-auto-img-001.html
@@ -0,0 +1,49 @@
+<!doctype HTML>
+<html class="reftest-wait">
+<meta charset="utf8">
+<title>CSS Test: img with content-visibility:auto honors its object-fit (restoring its aspect ratio) when coming back from offscreen</title>
+<link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
+<link rel="help" href="https://drafts.csswg.org/css-contain-2/#content-visibility">
+<link rel="help" href="https://drafts.csswg.org/css-contain-2/#containment-size">
+<link rel="match" href="content-visibility-auto-img-001-ref.html">
+<meta name="assert" content="img elements honor their aspect-ratio and object-fit even after briefly having their aspect-ratio suppressed by content-visibility:auto">
+
+<script src="/common/reftest-wait.js"></script>
+
+<style>
+body {
+  /* body needs to be tall enough so that we can programmatically scroll.  Use
+     'overflow:hidden' to suppress scrollbars so they don't interfere with the
+     reftest snapshot. */
+    height: 400vh;
+    overflow: hidden;
+}
+img {
+  width: 500px;  /* Much wider than the image's actual intrinsic width. */
+  height: 210px; /* The image's actual intrinsic height. */
+  object-fit: contain;
+  object-position: 0 0;
+  content-visibility: auto;
+}
+</style>
+<img id="myImg" src="resources/dice.png">
+
+<script>
+
+function runTest() {
+  // Scroll to the very end:
+  document.documentElement.scrollTop = document.documentElement.scrollHeight;
+
+  // Double-rAF to flush paints, and then scroll back to top
+  // and take screenshot:
+  requestAnimationFrame(()=>{
+    requestAnimationFrame(()=>{
+      document.documentElement.scrollTop = 0;
+      takeScreenshot();
+    });
+  });
+}
+
+window.onload = runTest;
+</script>
+</html>
diff --git a/tests/wpt/tests/css/css-easing/linear-timing-functions-chrome-405004975-crash.html b/tests/wpt/tests/css/css-easing/linear-timing-functions-chrome-406926307-crash.html
similarity index 71%
rename from tests/wpt/tests/css/css-easing/linear-timing-functions-chrome-405004975-crash.html
rename to tests/wpt/tests/css/css-easing/linear-timing-functions-chrome-406926307-crash.html
index 510b51716ce..32d48dca76b 100644
--- a/tests/wpt/tests/css/css-easing/linear-timing-functions-chrome-405004975-crash.html
+++ b/tests/wpt/tests/css/css-easing/linear-timing-functions-chrome-406926307-crash.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html>
-<title>Chrome crash bug 405004975</title>
-<link rel="help" href="https://crbug.com/405004975">
+<title>Chrome crash bug 406926307</title>
+<link rel="help" href="https://crbug.com/406926307">
 <style>
   div {
     transition-timing-function: linear(0, 0.25, sibling-index());
diff --git a/tests/wpt/tests/css/css-easing/timing-functions-syntax-valid.html b/tests/wpt/tests/css/css-easing/timing-functions-syntax-valid.html
index b858f45f4a4..3ebe1f513be 100644
--- a/tests/wpt/tests/css/css-easing/timing-functions-syntax-valid.html
+++ b/tests/wpt/tests/css/css-easing/timing-functions-syntax-valid.html
@@ -21,6 +21,7 @@ test_valid_value("animation-timing-function", "cubic-bezier(0.1, 0.2, 0.8, 0.9)"
 test_valid_value("animation-timing-function", "cubic-bezier(0, -2, 1, 3)");
 test_valid_value("animation-timing-function", "cubic-bezier(0, 0.7, 1, 1.3)");
 test_valid_value("animation-timing-function", "cubic-bezier(calc(-2), calc(0.7 / 2), calc(1.5), calc(0))", "cubic-bezier(calc(-2), calc(0.35), calc(1.5), calc(0))");
+test_valid_value("animation-timing-function", "cubic-bezier(0, sibling-index(), 1, sign(2em - 20px))");
 
 test_valid_value("animation-timing-function", "steps(4, start)");
 test_valid_value("animation-timing-function", "steps(2, end)", "steps(2)");
diff --git a/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-002-ref.html b/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-002-ref.html
new file mode 100644
index 00000000000..59db32c67a9
--- /dev/null
+++ b/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-002-ref.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Reference: Testing safe overflow-position for align-self in absolutely positioned boxes in reverse flex containers w/ item margin</title>
+  <link rel="author" title="Mihir Iyer" href="mailto:miyer@mozilla.com">
+  <link rel="author" title="Alison Maher" href="mailto:almaher@microsoft.com">
+  <meta charset="utf-8">
+  <style>
+    .flex {
+      display: flex;
+      height: 50px;
+      width: 50px;
+      border: 3px solid black;
+      vertical-align: top;
+      margin: 20px;
+      position: relative;
+    }
+    .child {
+      border: 2px dotted purple;
+      background: teal;
+      width: 65px;
+      height: 65px;
+      align-self: start;
+      position: absolute;
+      background: yellow;
+      margin: 5px;
+    }
+    .rowDir {
+      flex-direction: row-reverse;
+    }
+    .colDir {
+      flex-direction: column-reverse;
+    }
+    .vertRL {
+      writing-mode: vertical-rl;
+    }
+  </style>
+</head>
+<body>
+  <div class="flex rowDir"><div class="child"></div></div>
+  <div class="flex colDir"><div class="child"></div></div>
+  <div class="flex rowDir vertRL"><div class="child"></div></div>
+  <div class="flex colDir vertRL"><div class="child"></div></div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-002.html b/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-002.html
new file mode 100644
index 00000000000..a474254fbd2
--- /dev/null
+++ b/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-002.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>CSS Test: Testing safe overflow-position for align-self in absolutely positioned boxes in reverse flex containers w/ item margin</title>
+  <link rel="author" title="Mihir Iyer" href="mailto:miyer@mozilla.com">
+  <link rel="author" title="Alison Maher" href="mailto:almaher@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-flexbox/#abspos-items">
+  <link rel="match" href="flex-abspos-staticpos-align-self-safe-002-ref.html">
+  <meta charset="utf-8">
+  <style>
+    .flex {
+      display: flex;
+      height: 50px;
+      width: 50px;
+      border: 3px solid black;
+      vertical-align: top;
+      margin: 20px;
+      position: relative;
+    }
+    .child {
+      border: 2px dotted purple;
+      background: teal;
+      width: 65px;
+      height: 65px;
+      align-self: safe center;
+      position: absolute;
+      background: yellow;
+      margin: 5px;
+    }
+    .rowDir {
+      flex-direction: row-reverse;
+    }
+    .colDir {
+      flex-direction: column-reverse;
+    }
+    .vertRL {
+      writing-mode: vertical-rl;
+    }
+  </style>
+</head>
+<body>
+  <div class="flex rowDir"><div class="child"></div></div>
+  <div class="flex colDir"><div class="child"></div></div>
+  <div class="flex rowDir vertRL"><div class="child"></div></div>
+  <div class="flex colDir vertRL"><div class="child"></div></div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-003-ref.html b/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-003-ref.html
new file mode 100644
index 00000000000..d0499adcf0f
--- /dev/null
+++ b/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-003-ref.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Reference: Testing safe overflow-position for align-self in absolutely positioned boxes in flex containers when item doesn't overflow</title>
+  <link rel="author" title="Mihir Iyer" href="mailto:miyer@mozilla.com">
+  <link rel="author" title="Alison Maher" href="mailto:almaher@microsoft.com">
+  <meta charset="utf-8">
+  <style>
+    .flex {
+      display: flex;
+      height: 50px;
+      width: 50px;
+      border: 3px solid black;
+      vertical-align: top;
+      margin: 20px;
+      position: relative;
+    }
+    .child {
+      border: 2px dotted purple;
+      background: teal;
+      width: 25px;
+      height: 25px;
+      align-self: end;
+      position: absolute;
+      background: yellow;
+    }
+    .rowDir {
+      flex-direction: row;
+    }
+    .colDir {
+      flex-direction: column;
+    }
+    .vertRL {
+      writing-mode: vertical-rl;
+    }
+  </style>
+</head>
+<body>
+  <div class="flex rowDir"><div class="child"></div></div>
+  <div class="flex colDir"><div class="child"></div></div>
+  <div class="flex rowDir vertRL"><div class="child"></div></div>
+  <div class="flex colDir vertRL"><div class="child"></div></div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-003.html b/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-003.html
new file mode 100644
index 00000000000..cfcc8b58fdf
--- /dev/null
+++ b/tests/wpt/tests/css/css-flexbox/abspos/flex-abspos-staticpos-align-self-safe-003.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>CSS Test: Testing safe overflow-position for align-self in absolutely positioned boxes in flex containers when item doesn't overflow</title>
+  <link rel="author" title="Mihir Iyer" href="mailto:miyer@mozilla.com">
+  <link rel="author" title="Alison Maher" href="mailto:almaher@microsoft.com">
+  <link rel="help" href="https://drafts.csswg.org/css-flexbox/#abspos-items">
+  <link rel="match" href="flex-abspos-staticpos-align-self-safe-003-ref.html">
+  <meta charset="utf-8">
+  <style>
+    .flex {
+      display: flex;
+      height: 50px;
+      width: 50px;
+      border: 3px solid black;
+      vertical-align: top;
+      margin: 20px;
+      position: relative;
+    }
+    .child {
+      border: 2px dotted purple;
+      background: teal;
+      width: 25px;
+      height: 25px;
+      align-self: safe end;
+      position: absolute;
+      background: yellow;
+    }
+    .rowDir {
+      flex-direction: row;
+    }
+    .colDir {
+      flex-direction: column;
+    }
+    .vertRL {
+      writing-mode: vertical-rl;
+    }
+  </style>
+</head>
+<body>
+  <div class="flex rowDir"><div class="child"></div></div>
+  <div class="flex colDir"><div class="child"></div></div>
+  <div class="flex rowDir vertRL"><div class="child"></div></div>
+  <div class="flex colDir vertRL"><div class="child"></div></div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-flexbox/alignment/flex-content-alignment-with-abspos-001.html b/tests/wpt/tests/css/css-flexbox/alignment/flex-content-alignment-with-abspos-001.html
new file mode 100644
index 00000000000..1a70500f2c5
--- /dev/null
+++ b/tests/wpt/tests/css/css-flexbox/alignment/flex-content-alignment-with-abspos-001.html
@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>CSS Flex Layout Test: dynamic content alignment with abspos elements.</title>
+<link rel="author" title="Alison Maher" href="mailto:almaher@microsoft.com">
+<link rel="help" href="https://drafts.csswg.org/css-grid/#alignment">
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#content-distribution">
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#propdef-align-content">
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#propdef-justify-content">
+<meta name="assert" content="Test that dynamically changing alignment for abspos flex items works as expected." />
+
+<style>
+body {
+  margin: 0px;
+  width: 800px;
+}
+
+.flex {
+  display: flex;
+  width: 100%;
+  height: 600px;
+  background: gray;
+  position: relative;
+}
+
+#item {
+  width: 140px;
+  height: 60px;
+  border: 1px solid purple;
+  position: absolute;
+}
+</style>
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/check-layout-th.js"></script>
+<script>
+  function updateAlignmentAndCheckLayout() {
+    let item = document.getElementById("item");
+    item.style.alignSelf = "center";
+    let container = document.getElementById("container");
+    container.style.justifyContent = "center";
+    checkLayout('.flex');
+  }
+</script>
+</head>
+
+<body onload="updateAlignmentAndCheckLayout()">
+
+  <div class="flex" id="container" data-expected-width="800" data-expected-height="600">
+    <div id="item" data-offset-x="329" data-offset-y="269" data-expected-width="142" data-expected-height="62"></div>
+  </div>
+
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-001-print.html b/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-001-print.html
index 2fbf939f6a5..29796771451 100644
--- a/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-001-print.html
+++ b/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-001-print.html
@@ -13,6 +13,10 @@
   <style>
   @page { size:5in 3in; margin:0.5in; }
 
+  :root {
+    print-color-adjust: exact;
+  }
+
   html, body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-002-print.html b/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-002-print.html
index cc6037a8713..06daebec289 100644
--- a/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-002-print.html
+++ b/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-002-print.html
@@ -13,6 +13,10 @@
   <style>
   @page { size:5in 3in; margin:0.5in; }
 
+  :root {
+    print-color-adjust: exact;
+  }
+
   html, body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-print-ref.html b/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-print-ref.html
index d4a678d0746..6b32a2066ab 100644
--- a/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-print-ref.html
+++ b/tests/wpt/tests/css/css-flexbox/break-nested-float-in-flex-item-print-ref.html
@@ -10,6 +10,10 @@
   <style>
   @page { size:5in 3in; margin:0.5in; }
 
+  :root {
+    print-color-adjust: exact;
+  }
+
   html, body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-font-loading/WEB_FEATURES.yml b/tests/wpt/tests/css/css-font-loading/WEB_FEATURES.yml
new file mode 100644
index 00000000000..22137bf8279
--- /dev/null
+++ b/tests/wpt/tests/css/css-font-loading/WEB_FEATURES.yml
@@ -0,0 +1,4 @@
+features:
+- name: font-metric-overrides
+  files:
+  - fontface-override-descriptor-getter-setter.sub.html
diff --git a/tests/wpt/tests/css/css-fonts/WEB_FEATURES.yml b/tests/wpt/tests/css/css-fonts/WEB_FEATURES.yml
index dd313f81ed6..856ded1a75b 100644
--- a/tests/wpt/tests/css/css-fonts/WEB_FEATURES.yml
+++ b/tests/wpt/tests/css/css-fonts/WEB_FEATURES.yml
@@ -31,3 +31,8 @@ features:
 - name: font-variant-position
   files:
   - font-variant-position-*
+- name: font-metric-overrides
+  files:
+  - ascent-descent-override.html
+  - line-gap-override.html
+  - metrics-override-normal-keyword.html
diff --git a/tests/wpt/tests/css/css-fonts/font-variant-emoji-003-ref.html b/tests/wpt/tests/css/css-fonts/font-variant-emoji-003-ref.html
index 1e8cdb89cfa..f14584c1323 100644
--- a/tests/wpt/tests/css/css-fonts/font-variant-emoji-003-ref.html
+++ b/tests/wpt/tests/css/css-fonts/font-variant-emoji-003-ref.html
@@ -3,6 +3,11 @@
 <title>CSS Fonts: font-variant-emoji web font test</title>
 <link rel="stylesheet" type="text/css" href="support/css/variation-sequences.css" />
 <style>
+  div {
+    height: 2em;
+    font: 24px/1.5 serif;
+  }
+
   .color {
     font-family: "ColorEmojiFont";
   }
@@ -15,13 +20,13 @@
 <p>Emoji Default</p>
 <div>
   <span class="color">&#x1fae8;</span>
-  <span class="mono">&#x1fae8;</span>
+  <span class="mono">&#x1fae8;&#xfe0e;</span>
   <span class="color">&#x1fae8;</span>
 </div>
 
 <p>Text Default</p>
 <div>
-  <span class="color">&#x2139;</span>
+  <span class="color">&#x2139;&#xfe0f;</span>
   <span class="mono">&#x2139;</span>
   <span class="mono">&#x2139;</span>
 </div>
diff --git a/tests/wpt/tests/css/css-fonts/font-variant-emoji-003.html b/tests/wpt/tests/css/css-fonts/font-variant-emoji-003.html
index e197afa7c40..a8f3f15e19b 100644
--- a/tests/wpt/tests/css/css-fonts/font-variant-emoji-003.html
+++ b/tests/wpt/tests/css/css-fonts/font-variant-emoji-003.html
@@ -7,6 +7,19 @@
 <meta name="assert" content="font-variant-emoji sets an emoji's presentation for the emoji default and text default emoji codepoints and affects the fallback font selection."/>
 <link rel="stylesheet" type="text/css" href="support/css/variation-sequences.css" />
 <style>
+    div {
+      height: 2em;
+      font: 24px/1.5 serif;
+    }
+
+    .color-first span {
+      font-family: ColorEmojiFont, MonoEmojiFont;
+    }
+
+    .mono-first span {
+      font-family: MonoEmojiFont, ColorEmojiFont;
+    }
+
     .emoji {
       font-variant-emoji: emoji;
     }
@@ -26,7 +39,7 @@
 See https://www.unicode.org/Public/15.1.0/ucd/emoji/emoji-data.txt.
 So when font-variant-emoji is set to `unicode`, the codepoint
 should be displayed in color. -->
-<div style="font-family: MonoEmojiFont, ColorEmojiFont;">
+<div class="mono-first">
   <span class="emoji">&#x1fae8;</span>
   <span class="text">&#x1fae8;</span>
   <span class="unicode">&#x1fae8;</span>
@@ -38,7 +51,7 @@ should be displayed in color. -->
 See https://www.unicode.org/Public/15.1.0/ucd/emoji/emoji-data.txt.
 So when font-variant-emoji is set to `unicode`, the codepoint
 should be displayed in monochrome. -->
-<div style="font-family: ColorEmojiFont, MonoEmojiFont;">
+<div class="color-first">
   <span class="emoji">&#x2139;</span>
   <span class="text">&#x2139;</span>
   <span class="unicode">&#x2139;</span>
diff --git a/tests/wpt/tests/css/css-fonts/font-variant-emoji-004-ref.html b/tests/wpt/tests/css/css-fonts/font-variant-emoji-004-ref.html
index b15c8227cc4..633a94c4e51 100644
--- a/tests/wpt/tests/css/css-fonts/font-variant-emoji-004-ref.html
+++ b/tests/wpt/tests/css/css-fonts/font-variant-emoji-004-ref.html
@@ -3,6 +3,11 @@
 <title>CSS Fonts: font-variant-emoji web font test</title>
 <link rel="stylesheet" type="text/css" href="support/css/variation-sequences.css" />
 <style>
+  div {
+    height: 2em;
+    font: 24px/1.5 serif;
+  }
+
   .color {
     font-family: "ColorEmojiFont";
   }
@@ -13,17 +18,17 @@
 </style>
 
 <p>Variation Selector 15</p>
-<div class="mono">
-  <span>&#x1fae8;</span>
-  <span>&#x1fae8;</span>
-  <span>&#x1fae8;</span>
-  <span>&#x2139;</span>
+<div>
+  <span class="mono">&#x1fae8;&#xfe0e;</span>
+  <span class="mono">&#x1fae8;&#xfe0e;</span>
+  <span class="mono">&#x1fae8;&#xfe0e;</span>
+  <span class="mono">&#x2139;</span>
 </div>
 
 <p>Variation Selector 16</p>
-<div class="color">
-  <span>&#x1fae8;</span>
-  <span>&#x1fae8;</span>
-  <span>&#x1fae8;</span>
-  <span>&#x2139;</span>
-</div>
\ No newline at end of file
+<div>
+  <span class="color">&#x1fae8;</span>
+  <span class="color">&#x1fae8;</span>
+  <span class="color">&#x1fae8;</span>
+  <span class="color">&#x2139;&#xfe0f;</span>
+</div>
diff --git a/tests/wpt/tests/css/css-fonts/font-variant-emoji-004.html b/tests/wpt/tests/css/css-fonts/font-variant-emoji-004.html
index d76828dff01..39a910f03de 100644
--- a/tests/wpt/tests/css/css-fonts/font-variant-emoji-004.html
+++ b/tests/wpt/tests/css/css-fonts/font-variant-emoji-004.html
@@ -7,6 +7,19 @@
 <meta name="assert" content="Variation Selector 15 (U+FE0E) or Variation Selector 16 (U+FE0F) in the contents of an element override the rendering specified by font-variant-emoji property."/>
 <link rel="stylesheet" type="text/css" href="support/css/variation-sequences.css" />
 <style>
+    div {
+      height: 2em;
+      font: 24px/1.5 serif;
+    }
+
+    .color-first span {
+      font-family: ColorEmojiFont, MonoEmojiFont;
+    }
+
+    .mono-first span {
+      font-family: MonoEmojiFont, ColorEmojiFont;
+    }
+
     .emoji {
       font-variant-emoji: emoji;
     }
@@ -21,7 +34,7 @@
 </style>
 
 <p>Variation Selector 15</p>
-<div style="font-family: ColorEmojiFont, MonoEmojiFont;">
+<div class="color-first">
   <span class="text">&#x1fae8;&#xfe0e;</span>
   <span class="emoji">&#x1fae8;&#xfe0e;</span>
   <span class="unicode">&#x1fae8;&#xfe0e;</span>
@@ -29,7 +42,7 @@
 </div>
 
 <p>Variation Selector 16</p>
-<div style="font-family: MonoEmojiFont, ColorEmojiFont;">
+<div class="mono-first">
   <span class="text">&#x1fae8;&#xfe0f;</span>
   <span class="emoji">&#x1fae8;&#xfe0f;</span>
   <span class="unicode">&#x1fae8;&#xfe0f;</span>
diff --git a/tests/wpt/tests/css/css-fonts/font-variation-settings-calc.html b/tests/wpt/tests/css/css-fonts/font-variation-settings-calc.html
index e3f5178952e..f9ecbfe1941 100644
--- a/tests/wpt/tests/css/css-fonts/font-variation-settings-calc.html
+++ b/tests/wpt/tests/css/css-fonts/font-variation-settings-calc.html
@@ -11,6 +11,10 @@
 <script>
   test_valid_value('font-variation-settings', '"wght" sign(1em - 1px)');
   test_valid_value('font-variation-settings', '"wght" sibling-index()');
+  test_valid_value('font-variation-settings', '"wght" calc(10)');
+  test_valid_value('font-variation-settings', '"wght" sign(2px)', '"wght" calc(1)');
   test_computed_value('font-variation-settings', '"wght" sign(1em - 1px)', '"wght" 1');
   test_computed_value('font-variation-settings', '"wght" sibling-index()', '"wght" 1');
+  test_computed_value('font-variation-settings', '"wght" calc(10)', '"wght" 10');
+  test_computed_value('font-variation-settings', '"wght" sign(2px)', '"wght" 1');
 </script>
diff --git a/tests/wpt/tests/css/css-fonts/parsing/font-stretch-computed.html b/tests/wpt/tests/css/css-fonts/parsing/font-stretch-computed.html
deleted file mode 100644
index 42e1989b1ae..00000000000
--- a/tests/wpt/tests/css/css-fonts/parsing/font-stretch-computed.html
+++ /dev/null
@@ -1,41 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Fonts Module Level 4: getComputedStyle().fontStretch</title>
-<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-stretch-prop">
-<meta name="assert" content="font-stretch computed value is a percentage.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/computed-testcommon.js"></script>
-<style>
-  #container {
-    container-type: inline-size;
-    width: 10px;
-  }
-</style>
-</head>
-<body>
-<div id="container">
-  <div id="target"></div>
-</div>
-<script>
-test_computed_value('font-stretch', 'ultra-condensed', '50%');
-test_computed_value('font-stretch', 'extra-condensed', '62.5%');
-test_computed_value('font-stretch', 'condensed', '75%');
-test_computed_value('font-stretch', 'semi-condensed', '87.5%');
-test_computed_value('font-stretch', 'normal', '100%');
-test_computed_value('font-stretch', 'semi-expanded', '112.5%');
-test_computed_value('font-stretch', 'expanded', '125%');
-test_computed_value('font-stretch', 'extra-expanded', '150%');
-test_computed_value('font-stretch', 'ultra-expanded', '200%');
-
-test_computed_value('font-stretch', '234.5%');
-test_computed_value('font-stretch', 'calc(100%)', '100%');
-test_computed_value('font-stretch', 'calc(0%)', '0%');
-test_computed_value('font-stretch', 'calc(-100%)', '0%');
-test_computed_value('font-stretch', 'calc(100% + 100%)', '200%');
-test_computed_value('font-stretch', 'calc(100% + (sign(20cqw - 10px) * 5%))', '95%');
-</script>
-</body>
-</html>
diff --git a/tests/wpt/tests/css/css-fonts/parsing/font-stretch-invalid.html b/tests/wpt/tests/css/css-fonts/parsing/font-stretch-invalid.html
deleted file mode 100644
index 0f7f7c88975..00000000000
--- a/tests/wpt/tests/css/css-fonts/parsing/font-stretch-invalid.html
+++ /dev/null
@@ -1,21 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Fonts Module Level 4: parsing font-stretch with invalid values</title>
-<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-stretch-prop">
-<meta name="assert" content="font-stretch supports only the grammar 'normal | <percentage [0,∞]> | ultra-condensed | extra-condensed | condensed | semi-condensed | semi-expanded | expanded | extra-expanded | ultra-expanded'.">
-<meta name="assert" content="Values less than 0% are invalid.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_invalid_value('font-stretch', 'auto');
-test_invalid_value('font-stretch', 'normal, ultra-condensed');
-test_invalid_value('font-stretch', 'condensed expanded');
-test_invalid_value('font-stretch', '-50%');
-</script>
-</body>
-</html>
diff --git a/tests/wpt/tests/css/css-fonts/parsing/font-stretch-valid.html b/tests/wpt/tests/css/css-fonts/parsing/font-stretch-valid.html
deleted file mode 100644
index 90cde603133..00000000000
--- a/tests/wpt/tests/css/css-fonts/parsing/font-stretch-valid.html
+++ /dev/null
@@ -1,32 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Fonts Module Level 4: parsing font-stretch with valid values</title>
-<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-stretch-prop">
-<meta name="assert" content="font-stretch supports the full grammar 'normal | <percentage [0,∞]> | ultra-condensed | extra-condensed | condensed | semi-condensed | semi-expanded | expanded | extra-expanded | ultra-expanded'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_valid_value('font-stretch', 'normal');
-test_valid_value('font-stretch', 'ultra-condensed');
-test_valid_value('font-stretch', 'extra-condensed');
-test_valid_value('font-stretch', 'condensed');
-test_valid_value('font-stretch', 'semi-condensed');
-test_valid_value('font-stretch', 'semi-expanded');
-test_valid_value('font-stretch', 'expanded');
-test_valid_value('font-stretch', 'extra-expanded');
-test_valid_value('font-stretch', 'ultra-expanded');
-
-test_valid_value('font-stretch', '234.5%');
-test_valid_value('font-stretch', 'calc(100%)');
-test_valid_value('font-stretch', 'calc(0%)');
-test_valid_value('font-stretch', 'calc(-100%)');
-test_valid_value('font-stretch', 'calc(100% + 100%)', 'calc(200%)');
-test_valid_value('font-stretch', 'calc(100% + (sign(20cqw - 10px) * 5%))', 'calc(100% + (5% * sign(20cqw - 10px)))');
-</script>
-</body>
-</html>
diff --git a/tests/wpt/tests/css/css-fonts/parsing/font-width-computed.html b/tests/wpt/tests/css/css-fonts/parsing/font-width-computed.html
new file mode 100644
index 00000000000..4e38a5d5e9a
--- /dev/null
+++ b/tests/wpt/tests/css/css-fonts/parsing/font-width-computed.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Fonts Module Level 4: getComputedStyle().fontWidth</title>
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-width-prop">
+<meta name="assert" content="font-width computed value is a percentage.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/computed-testcommon.js"></script>
+<style>
+  #container {
+    container-type: inline-size;
+    width: 10px;
+  }
+</style>
+</head>
+<body>
+<div id="container">
+  <div id="target"></div>
+</div>
+<script>
+for (const property of ['font-width','font-stretch']) {
+  test_computed_value(property, 'ultra-condensed', '50%');
+  test_computed_value(property, 'extra-condensed', '62.5%');
+  test_computed_value(property, 'condensed', '75%');
+  test_computed_value(property, 'semi-condensed', '87.5%');
+  test_computed_value(property, 'normal', '100%');
+  test_computed_value(property, 'semi-expanded', '112.5%');
+  test_computed_value(property, 'expanded', '125%');
+  test_computed_value(property, 'extra-expanded', '150%');
+  test_computed_value(property, 'ultra-expanded', '200%');
+
+  test_computed_value(property, '234.5%');
+  test_computed_value(property, 'calc(100%)', '100%');
+  test_computed_value(property, 'calc(0%)', '0%');
+  test_computed_value(property, 'calc(-100%)', '0%');
+  test_computed_value(property, 'calc(100% + 100%)', '200%');
+  test_computed_value(property, 'calc(100% + (sign(20cqw - 10px) * 5%))', '95%');
+}
+</script>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-fonts/parsing/font-width-invalid.html b/tests/wpt/tests/css/css-fonts/parsing/font-width-invalid.html
new file mode 100644
index 00000000000..7f30eab3e5b
--- /dev/null
+++ b/tests/wpt/tests/css/css-fonts/parsing/font-width-invalid.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Fonts Module Level 4: parsing font-width with invalid values</title>
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-width-prop">
+<meta name="assert" content="font-width supports only the grammar 'normal | <percentage [0,∞]> | ultra-condensed | extra-condensed | condensed | semi-condensed | semi-expanded | expanded | extra-expanded | ultra-expanded'.">
+<meta name="assert" content="Values less than 0% are invalid.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+for (const property of ['font-width','font-stretch']) {
+    test_invalid_value(property, 'auto');
+    test_invalid_value(property, 'normal, ultra-condensed');
+    test_invalid_value(property, 'condensed expanded');
+    test_invalid_value(property, '-50%');
+}
+</script>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-fonts/parsing/font-width-valid.html b/tests/wpt/tests/css/css-fonts/parsing/font-width-valid.html
new file mode 100644
index 00000000000..44cbb37fd60
--- /dev/null
+++ b/tests/wpt/tests/css/css-fonts/parsing/font-width-valid.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Fonts Module Level 4: parsing font-width with valid values</title>
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-width-prop">
+<meta name="assert" content="font-width supports the full grammar 'normal | <percentage [0,∞]> | ultra-condensed | extra-condensed | condensed | semi-condensed | semi-expanded | expanded | extra-expanded | ultra-expanded'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+for (const property of ['font-width','font-stretch']) {
+    test_valid_value(property, 'normal');
+    test_valid_value(property, 'ultra-condensed');
+    test_valid_value(property, 'extra-condensed');
+    test_valid_value(property, 'condensed');
+    test_valid_value(property, 'semi-condensed');
+    test_valid_value(property, 'semi-expanded');
+    test_valid_value(property, 'expanded');
+    test_valid_value(property, 'extra-expanded');
+    test_valid_value(property, 'ultra-expanded');
+
+    test_valid_value(property, '234.5%');
+    test_valid_value(property, 'calc(100%)');
+    test_valid_value(property, 'calc(0%)');
+    test_valid_value(property, 'calc(-100%)');
+    test_valid_value(property, 'calc(100% + 100%)', 'calc(200%)');
+    test_valid_value(property, 'calc(100% + (sign(20cqw - 10px) * 5%))', 'calc(100% + (5% * sign(20cqw - 10px)))');
+}
+</script>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-016-ref.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-016-ref.html
new file mode 100644
index 00000000000..1d368aba9d4
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-016-ref.html
@@ -0,0 +1,111 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/#lists-repeat">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  body {
+    margin: 0px;
+  }
+
+  .grid-container {
+    display: grid;
+    grid-gap: 10px;
+    grid-template-columns: repeat(5, 100px);
+    height: 540px;
+    width: 540px;
+  }
+
+  .row-gap {
+    height: 0px;
+    width: 540px;
+    position: absolute;
+  }
+
+  .row-gap1 {
+    border-bottom: 5px dashed red;
+    top: 102.5px;
+  }
+
+  .row-gap2 {
+    border-bottom: 5px groove red;
+    top: 212.5px;
+  }
+
+  .row-gap3 {
+    border-bottom: 5px ridge red;
+    top: 322.5px;
+  }
+
+  .row-gap4 {
+    border-bottom: 5px dashed red;
+    top: 432.5px;
+  }
+
+  .col-gap {
+    width: 0px;
+    height: 540px;
+    position: absolute;
+    top: 0px;
+  }
+
+  .col-gap1 {
+    border-left: 5px solid blue;
+    left: 102.5px;
+  }
+
+  .col-gap2 {
+    border-left: 5px dotted blue;
+    left: 212.5px;
+  }
+
+  .col-gap3 {
+    border-left: 5px double blue;
+    left: 322.5px;
+  }
+
+  .col-gap4 {
+    border-left: 5px solid blue;
+    left: 432.5px;
+  }
+
+  .item {
+    background: gray;
+    opacity: 0.5;
+  }
+</style>
+<div class="grid-container">
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+</div>
+
+<div class="row-gap row-gap1"> </div>
+<div class="row-gap row-gap2"> </div>
+<div class="row-gap row-gap3"> </div>
+<div class="row-gap row-gap4"> </div>
+
+<div class="col-gap col-gap1"> </div>
+<div class="col-gap col-gap2"> </div>
+<div class="col-gap col-gap3"> </div>
+<div class="col-gap col-gap4"> </div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-016.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-016.html
new file mode 100644
index 00000000000..a0618e44b56
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-016.html
@@ -0,0 +1,60 @@
+<!DOCTYPE html>
+<title>
+  CSS Gap Decorations: Grid gaps are painted with multiple line-style values for *-rule-style.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/#lists-repeat">
+<link rel="match" href="grid-gap-decorations-016-ref.html">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  body {
+    margin: 0px;
+  }
+
+  .grid-container {
+    display: grid;
+    grid-gap: 10px;
+    grid-template-columns: repeat(5, 100px);
+    height: 540px;
+    width: 540px;
+
+    column-rule-color: blue;
+    column-rule-style: solid dotted double;
+    column-rule-width: 5px;
+
+    row-rule-color: red;
+    row-rule-style: dashed groove ridge;
+    row-rule-width: 5px;
+  }
+
+  .item {
+    background: gray;
+    opacity: 0.5;
+  }
+</style>
+<div class="grid-container">
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-017-ref.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-017-ref.html
new file mode 100644
index 00000000000..2aa226eb092
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-017-ref.html
@@ -0,0 +1,135 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/#lists-repeat">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  body {
+    margin: 0px;
+  }
+
+  .grid-container {
+    display: grid;
+    grid-gap: 10px;
+    grid-template-columns: repeat(6, 100px);
+    height: 650px;
+    width: 650px;
+  }
+
+  .row-gap {
+    height: 0px;
+    width: 650px;
+    position: absolute;
+
+  }
+
+  .row-gap1 {
+    border-bottom: 5px double red;
+    top: 102.5px;
+  }
+
+  .row-gap2 {
+    border-bottom: 5px solid red;
+    top: 212.5px;
+  }
+
+  .row-gap3 {
+    border-bottom: 5px dotted red;
+    top: 322.5px;
+  }
+
+  .row-gap4 {
+    border-bottom: 5px ridge red;
+    top: 432.5px;
+  }
+
+  .row-gap5 {
+    border-bottom: 5px ridge red;
+    top: 542.5px;
+  }
+
+  .col-gap {
+    width: 0px;
+    height: 650px;
+    position: absolute;
+    top: 0px;
+  }
+
+  .col-gap1 {
+    border-left: 5px solid blue;
+    left: 102.5px;
+  }
+
+  .col-gap2 {
+    border-left: 5px groove blue;
+    left: 212.5px;
+  }
+
+  .col-gap3 {
+    border-left: 5px double blue;
+    left: 322.5px;
+  }
+
+  .col-gap4 {
+    border-left: 5px dotted blue;
+    left: 432.5px;
+  }
+
+  .col-gap5 {
+    border-left: 5px dotted blue;
+    left: 542.5px;
+  }
+
+  .item {
+    background: gray;
+    opacity: 0.5;
+  }
+</style>
+<div class="grid-container">
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+</div>
+
+<div class="row-gap row-gap1"> </div>
+<div class="row-gap row-gap2"> </div>
+<div class="row-gap row-gap3"> </div>
+<div class="row-gap row-gap4"> </div>
+<div class="row-gap row-gap5"> </div>
+
+<div class="col-gap col-gap1"> </div>
+<div class="col-gap col-gap2"> </div>
+<div class="col-gap col-gap3"> </div>
+<div class="col-gap col-gap4"> </div>
+<div class="col-gap col-gap5"> </div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-017.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-017.html
new file mode 100644
index 00000000000..be0f7fc2751
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-017.html
@@ -0,0 +1,69 @@
+<!DOCTYPE html>
+<title>
+  CSS Gap Decorations: Grid gaps are painted with multiple line-style values for *-rule-style.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/#lists-repeat">
+<link rel="match" href="grid-gap-decorations-017-ref.html">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  body {
+    margin: 0px;
+  }
+  .grid-container {
+    display: grid;
+    grid-gap: 10px;
+    grid-template-columns: repeat(6, 100px);
+    height: 650px;
+    width: 650px;
+
+    column-rule-color: blue;
+    column-rule-style: solid repeat(auto, groove double) repeat(2, dotted);
+    column-rule-width: 5px;
+
+    row-rule-color: red;
+    row-rule-style: repeat(auto, double solid) dotted repeat(2, ridge);
+    row-rule-width: 5px;
+  }
+  .item {
+    background: gray;
+    opacity: 0.5;
+  }
+</style>
+<div class="grid-container">
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-018-ref.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-018-ref.html
new file mode 100644
index 00000000000..6fcc175e68d
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-018-ref.html
@@ -0,0 +1,134 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/#lists-repeat">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  body {
+    margin: 0px;
+  }
+
+  .grid-container {
+    display: grid;
+    grid-gap: 10px;
+    grid-template-columns: repeat(6, 100px);
+    height: 650px;
+    width: 650px;
+  }
+
+  .row-gap {
+    height: 0px;
+    width: 650px;
+    position: absolute;
+  }
+
+  .row-gap1 {
+    border-bottom: 8px solid red;
+    top: 101px;
+  }
+
+  .row-gap2 {
+    border-bottom: 5px solid red;
+    top: 212.5px;
+  }
+
+  .row-gap3 {
+    border-bottom: 2px solid red;
+    top: 324px;
+  }
+
+  .row-gap4 {
+    border-bottom: 8px solid red;
+    top: 431px;
+  }
+
+  .row-gap5 {
+    border-bottom: 5px solid red;
+    top: 542.5px;
+  }
+
+  .col-gap {
+    width: 0px;
+    height: 650px;
+    position: absolute;
+    top: 0px;
+  }
+
+  .col-gap1 {
+    border-left: 2px solid blue;
+    left: 104px;
+  }
+
+  .col-gap2 {
+    border-left: 5px solid blue;
+    left: 212.5px;
+  }
+
+  .col-gap3 {
+    border-left: 8px solid blue;
+    left: 321px;
+  }
+
+  .col-gap4 {
+    border-left: 2px solid blue;
+    left: 434px;
+  }
+
+  .col-gap5 {
+    border-left: 5px solid blue;
+    left: 542.5px;
+  }
+
+  .item {
+    background: gray;
+    opacity: 0.5;
+  }
+</style>
+<div class="grid-container">
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+</div>
+
+<div class="row-gap row-gap1"> </div>
+<div class="row-gap row-gap2"> </div>
+<div class="row-gap row-gap3"> </div>
+<div class="row-gap row-gap4"> </div>
+<div class="row-gap row-gap5"> </div>
+
+<div class="col-gap col-gap1"> </div>
+<div class="col-gap col-gap2"> </div>
+<div class="col-gap col-gap3"> </div>
+<div class="col-gap col-gap4"> </div>
+<div class="col-gap col-gap5"> </div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-018.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-018.html
new file mode 100644
index 00000000000..dc5e2e38e0b
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-018.html
@@ -0,0 +1,71 @@
+<!DOCTYPE html>
+<title>
+  CSS Gap Decorations: Grid gaps are painted with multiple line-width values for *-rule-width.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/#lists-repeat">
+<link rel="match" href="grid-gap-decorations-018-ref.html">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  body {
+    margin: 0px;
+  }
+
+  .grid-container {
+    display: grid;
+    grid-gap: 10px;
+    grid-template-columns: repeat(6, 100px);
+    height: 650px;
+    width: 650px;
+
+    column-rule-color: blue;
+    column-rule-style: solid;
+    column-rule-width: 2px 5px 8px;
+
+    row-rule-color: red;
+    row-rule-style: solid;
+    row-rule-width: 8px 5px 2px;
+  }
+
+  .item {
+    background: gray;
+    opacity: 0.5;
+  }
+</style>
+<div class="grid-container">
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-019-ref.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-019-ref.html
new file mode 100644
index 00000000000..0705ba075ab
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-019-ref.html
@@ -0,0 +1,137 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/#lists-repeat">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  body {
+    margin: 0px;
+  }
+
+  .grid-container {
+    display: grid;
+    grid-gap: 10px;
+    grid-template-columns: repeat(6, 100px);
+    height: 650px;
+    width: 650px;
+  }
+
+  .row-gap {
+    height: 0px;
+    width: 650px;
+    position: absolute;
+
+  }
+
+  .row-gap1 {
+    border-bottom: 10px solid red;
+    top: 100px;
+  }
+
+  .row-gap2 {
+    border-bottom: 8px solid red;
+    top: 211px;
+  }
+
+  .row-gap3 {
+    border-bottom: 2px solid red;
+    top: 324px;
+  }
+
+  .row-gap4 {
+    border-bottom: 2px solid red;
+    top: 434px;
+  }
+
+  .row-gap5 {
+    border-bottom: 5px solid red;
+    top: 542.5px;
+  }
+
+  .col-gap {
+    width: 0px;
+    height: 650px;
+    position: absolute;
+    top: 0px;
+  }
+
+  .col-gap1 {
+    border-left: 2px solid blue;
+    left: 104px;
+  }
+
+  .col-gap2 {
+    border-left: 5px solid blue;
+    left: 212.5px;
+  }
+
+  .col-gap3 {
+    border-left: 2px solid blue;
+    left: 324px;
+  }
+
+  .col-gap4 {
+    border-left: 10px solid blue;
+    left: 430px;
+  }
+
+  .col-gap5 {
+    border-left: 10px solid blue;
+    left: 540px;
+  }
+
+  .item {
+    background: gray;
+    opacity: 0.5;
+  }
+</style>
+<div class="grid-container">
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+</div>
+
+
+<div class="row-gap row-gap1"> </div>
+<div class="row-gap row-gap2"> </div>
+<div class="row-gap row-gap3"> </div>
+<div class="row-gap row-gap4"> </div>
+<div class="row-gap row-gap5"> </div>
+
+
+<div class="col-gap col-gap1"> </div>
+<div class="col-gap col-gap2"> </div>
+<div class="col-gap col-gap3"> </div>
+<div class="col-gap col-gap4"> </div>
+<div class="col-gap col-gap5"> </div>
diff --git a/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-019.html b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-019.html
new file mode 100644
index 00000000000..637e0467a80
--- /dev/null
+++ b/tests/wpt/tests/css/css-gaps/tentative/grid/grid-gap-decorations-019.html
@@ -0,0 +1,71 @@
+<!DOCTYPE html>
+<title>
+  CSS Gap Decorations: Grid gaps are painted with multiple line-width values for *-rule-width.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
+<link rel="match" href="grid-gap-decorations-019-ref.html">
+<link rel="author" title="Sam Davis Omekara Jr." href="mailto:samomekarajr@microsoft.com">
+<style>
+  body {
+    margin: 0px;
+  }
+
+  .grid-container {
+    display: grid;
+    grid-gap: 10px;
+    grid-template-columns: repeat(6, 100px);
+    height: 650px;
+    width: 650px;
+
+    column-rule-color: blue;
+    column-rule-style: solid;
+    column-rule-width: 2px repeat(auto, 5px 2px) repeat(2, 10px);
+
+    row-rule-color: red;
+    row-rule-style: solid;
+    row-rule-width: repeat(auto, 10px 8px) repeat(2, 2px) 5px;
+  }
+
+  .item {
+    background: gray;
+    opacity: 0.5;
+  }
+</style>
+<div class="grid-container">
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+  <div class="item"></div>
+</div>
diff --git a/tests/wpt/tests/css/css-grid/grid-extrinsically-sized-mutations.html b/tests/wpt/tests/css/css-grid/grid-extrinsically-sized-mutations.html
new file mode 100644
index 00000000000..75600046e82
--- /dev/null
+++ b/tests/wpt/tests/css/css-grid/grid-extrinsically-sized-mutations.html
@@ -0,0 +1,121 @@
+<!DOCTYPE html>
+<html>
+<head>
+<link rel="author" title="Sammy Gill" href="mailto:sammy.gill@apple.com">
+<link rel="help" href="https://drafts.csswg.org/css-grid-2/#layout-algorithm">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+<meta name="assert" content="Tests that an extrinsically sized grid responds to various changes to both the grid and its constraints.">
+<style>
+.container {
+  width: 50px;
+}
+.grid {
+  display: grid;
+  grid-template-columns: 100%;
+  grid-template-rows: 50px;
+  height: 50px;
+  outline: 1px solid blue;
+  font: 10px/1 Ahem;
+}
+
+.alignStart {
+  align-items: start;
+}
+
+.fixedHeight {
+  height: 100px;
+}
+
+.percentHeight {
+  height: 100%;
+}
+
+.percentRow {
+  grid-template-rows: 100%;
+}
+</style>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+function mutateContent() {
+  document.getElementById("one").style.width = "10px";
+  document.getElementById("two").style.alignItems = "stretch";
+  document.getElementById("three").style.gridTemplateRows = "30px";
+  document.getElementById("four").style.height = "10px";
+  document.getElementById("five").innerHTML += " x x x x x x";
+  document.getElementById("six").style.height = "50px";
+  document.getElementById("seven").style.gridTemplateColumns = "20%";
+
+  document.getElementById("eight").innerHTML += "<div class='test' data-expected-height='40'>x x x x</div>";
+}
+</script>
+</head>
+<body>
+
+<!-- Inline constraint on the grid changes -->
+<div class="container" id="one">
+  <div class="grid alignStart">
+    <div class="test" data-expected-height="40">x x x x</div>
+  </div>
+</div>
+
+<!-- Alignment of grid items changes -->
+<div class="container">
+  <div id="two" class="grid alignStart">
+    <div class="test" data-expected-height="50">x x x</div>
+  </div>
+</div>
+
+<!-- grid-template-rows changes to different fixed size. -->
+<div id="three" class="grid">
+  <div class="test" data-expected-height="30">xx</div>
+</div>
+
+<!-- Grid block size changes with % based rows -->
+<div id="four" class="grid percentRow">
+  <div class="test" data-expected-height="10">xx</div>
+</div>
+
+<!-- Grid item content changes -->
+<div class="container">
+  <div class="grid alignStart">
+    <div id="five" class="test" data-expected-height="30">x x x</div>
+  </div>
+</div>
+
+<!-- Grid with % height and rows has fixed block constraint changed -->
+<div class="container fixedHeight" id="six">
+  <div class="grid percentRow percentHeight">
+    <div class="test" data-expected-height="50">xx</div>
+  </div>
+</div>
+
+<!-- grid-template-columns changes to different % value -->
+<div class="container">
+  <div id="seven" class="grid alignStart">
+    <div class="test" data-expected-height="30">x x x</div>
+  </div>
+</div>
+
+<!-- Grid has new item added -->
+<div class="container">
+  <div id="eight" class="grid alignStart" style="grid-template-columns: 50% 50%;">
+    <div>xx xx</div>
+  </div>
+</div>
+</body>
+<script>
+document.body.offsetHeight;
+mutateContent();
+document.body.offsetHeight;
+
+let tests = document.querySelectorAll(".test");
+tests.forEach((element) => {
+  test(function() {
+    let expectedHeight = element.getAttribute("data-expected-height");
+    assert_equals(element.offsetHeight, Number(expectedHeight), "height");
+  });
+});
+</script>
+</html>
+
diff --git a/tests/wpt/tests/css/css-grid/grid-fragmentation-between-rows-001-print-ref.tentative.html b/tests/wpt/tests/css/css-grid/grid-fragmentation-between-rows-001-print-ref.tentative.html
index 78464712c5c..ba97d33c8b6 100644
--- a/tests/wpt/tests/css/css-grid/grid-fragmentation-between-rows-001-print-ref.tentative.html
+++ b/tests/wpt/tests/css/css-grid/grid-fragmentation-between-rows-001-print-ref.tentative.html
@@ -1,4 +1,9 @@
 <!DOCTYPE html>
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <div style="height:40vh">
   Test passes if there is two purple boxes on both page 1 and page 2 in print mode. (Ctrl+P, with "print backgrounds" enabled)
 </div>
diff --git a/tests/wpt/tests/css/css-grid/grid-fragmentation-between-rows-001-print.tentative.html b/tests/wpt/tests/css/css-grid/grid-fragmentation-between-rows-001-print.tentative.html
index 01fd97528fc..af345718e6e 100644
--- a/tests/wpt/tests/css/css-grid/grid-fragmentation-between-rows-001-print.tentative.html
+++ b/tests/wpt/tests/css/css-grid/grid-fragmentation-between-rows-001-print.tentative.html
@@ -2,6 +2,11 @@
 <link rel="author" title="Psychpsyo" href="mailto:psychpsyo@gmail.com">
 <link rel="help" href="https://www.w3.org/TR/css-grid-1/#pagination">
 <link rel="match" href="./grid-fragmentation-between-rows-001-print-ref.tentative.html">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <div style="height: 40vh">
   Test passes if there is two purple boxes on both page 1 and page 2 in print mode. (Ctrl+P, with "print backgrounds" enabled)
 </div>
diff --git a/tests/wpt/tests/css/css-images/conic-gradient-angle-negative.html b/tests/wpt/tests/css/css-images/conic-gradient-angle-negative.html
index 5a7030d0ff0..faf9a2d2033 100644
--- a/tests/wpt/tests/css/css-images/conic-gradient-angle-negative.html
+++ b/tests/wpt/tests/css/css-images/conic-gradient-angle-negative.html
@@ -3,7 +3,7 @@
 <title>Conic gradient with negative angle parameter</title>
 <link rel="help" href="https://drafts.csswg.org/css-images-4/#conic-gradients">
 <meta name="assert" content="Rendering of conic-gradient with negative center parameter">
-<meta name="fuzzy" content="maxDifference=1;totalPixels=40000">
+<meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-40000">
 <link rel="match" href="reference/200x200-blue-black-green-red.html">
 <style>
   #gradient {
diff --git a/tests/wpt/tests/css/css-images/conic-gradient-angle.html b/tests/wpt/tests/css/css-images/conic-gradient-angle.html
index ba37ec15e1e..500d39366c9 100644
--- a/tests/wpt/tests/css/css-images/conic-gradient-angle.html
+++ b/tests/wpt/tests/css/css-images/conic-gradient-angle.html
@@ -3,7 +3,7 @@
 <title>Conic gradient with custom angle parameter</title>
 <link rel="help" href="https://drafts.csswg.org/css-images-4/#conic-gradients">
 <meta name="assert" content="Rendering of conic-gradient with custom center parameter">
-<meta name="fuzzy" content="maxDifference=1;totalPixels=40000">
+<meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-40000">
 <link rel="match" href="reference/200x200-blue-black-green-red.html">
 <style>
   #gradient {
diff --git a/tests/wpt/tests/css/css-images/conic-gradient-center.html b/tests/wpt/tests/css/css-images/conic-gradient-center.html
index 7e810270567..fb2fcd994c4 100644
--- a/tests/wpt/tests/css/css-images/conic-gradient-center.html
+++ b/tests/wpt/tests/css/css-images/conic-gradient-center.html
@@ -3,7 +3,7 @@
 <title>Conic gradient with custom center parameter</title>
 <link rel="help" href="https://drafts.csswg.org/css-images-4/#conic-gradients">
 <meta name="assert" content="Rendering of conic-gradient with custom center parameter">
-<meta name="fuzzy" content="maxDifference=1;totalPixels=40000">
+<meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-40000">
 <link rel="match" href="conic-gradient-center-ref.html">
 <style>
   #gradient {
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-infinity-003-ref.html b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-003-ref.html
new file mode 100644
index 00000000000..798df7bbbb6
--- /dev/null
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-003-ref.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<title>All boxes should have a lime background.</title>
+<style>
+  div {
+    width: 100px;
+    height: 100px;
+    background: radial-gradient(circle at 0% 100%, lime 100%, red 0);
+  }
+</style>
+<div>This should be a lime background.</div>
+<div>This should be a lime background.</div>
+<div>This should be a lime background.</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-images/gradient/gradient-infinity-003.html b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-003.html
new file mode 100644
index 00000000000..74008e41691
--- /dev/null
+++ b/tests/wpt/tests/css/css-images/gradient/gradient-infinity-003.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<link rel="match" href="gradient-infinity-003-ref.html">
+<link rel="author" title="CGQAQ" href="mailto:m.jason.liu@gmail.com">
+<link rel="author" title="一丝" href="mailto:yiorsi@gmail.com">
+<link rel="help" href="https://www.w3.org/TR/css-color-4/#interpolation">
+<title>All boxes should have a lime background.</title>
+<style>
+  div {
+    width: 100px;
+    height: 100px;
+  }
+  .test1 {
+    --size1: calc(Infinity * 1px);
+    background: radial-gradient(circle at 0% var(--size1), lime var(--size1), red 0);
+  }
+  .test2 {
+    --size2: calc(Infinity * 1%);
+    background: radial-gradient(circle at 0% var(--size2), lime var(--size2), red 0);
+  }
+  .test3 {
+    --size3: calc(16777200px * 150);
+    background: radial-gradient(circle at 0% var(--size3), lime var(--size3), red 0);
+  }
+</style>
+<div class="test1">This should be a lime background.</div>
+<div class="test2">This should be a lime background.</div>
+<div class="test3">This should be a lime background.</div>
\ No newline at end of file
diff --git a/tests/wpt/tests/css/css-images/multiple-position-color-stop-conic.html b/tests/wpt/tests/css/css-images/multiple-position-color-stop-conic.html
index 41aa505c879..50ec959e221 100644
--- a/tests/wpt/tests/css/css-images/multiple-position-color-stop-conic.html
+++ b/tests/wpt/tests/css/css-images/multiple-position-color-stop-conic.html
@@ -2,7 +2,7 @@
 <title>Conic gradient with a two position color stop</title>
 <link rel="help" href="https://drafts.csswg.org/css-images-4/#color-stop-syntax">
 <meta name="assert" content="A color stop with two positions create a hard transition">
-<meta name="fuzzy" content="maxDifference=1;totalPixels=10000">
+<meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-10000">
 <link rel="match" href="reference/100x100-blue-green.html">
 <style>
 #target {
diff --git a/tests/wpt/tests/css/css-images/normalization-conic-2.html b/tests/wpt/tests/css/css-images/normalization-conic-2.html
index 9856f6b8f2c..a42829537ad 100644
--- a/tests/wpt/tests/css/css-images/normalization-conic-2.html
+++ b/tests/wpt/tests/css/css-images/normalization-conic-2.html
@@ -3,7 +3,7 @@
 <title>Conic gradient stop normalization</title>
 <link rel="help" href="https://drafts.csswg.org/css-images-4/#conic-gradients">
 <meta name="assert" content="Rendering of conic-gradient with normalized color stops">
-<meta name="fuzzy" content="maxDifference=1;totalPixels=10000">
+<meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-10000">
 <link rel="match" href="reference/100x100-blue.html">
 <style>
   #gradient {
diff --git a/tests/wpt/tests/css/css-images/normalization-conic-degenerate.html b/tests/wpt/tests/css/css-images/normalization-conic-degenerate.html
index 6905c39ef9d..047aaecd46f 100644
--- a/tests/wpt/tests/css/css-images/normalization-conic-degenerate.html
+++ b/tests/wpt/tests/css/css-images/normalization-conic-degenerate.html
@@ -3,7 +3,7 @@
 <title>Conic gradient stop normalization</title>
 <link rel="help" href="https://www.w3.org/TR/css-images-3/#repeating-gradients">
 <meta name="assert" content="Rendering of repeating-conic-gradient w/ stops at the same place">
-<meta name="fuzzy" content="maxDifference=1;totalPixels=10000">
+<meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-10000">
 <link rel="match" href="reference/100x100-blue.html">
 <style>
   #gradient {
diff --git a/tests/wpt/tests/css/css-images/normalization-conic.html b/tests/wpt/tests/css/css-images/normalization-conic.html
index 21fb8bae8a6..3631c8e0df3 100644
--- a/tests/wpt/tests/css/css-images/normalization-conic.html
+++ b/tests/wpt/tests/css/css-images/normalization-conic.html
@@ -3,7 +3,7 @@
 <title>Conic gradient stop normalization</title>
 <link rel="help" href="https://drafts.csswg.org/css-images-4/#conic-gradients">
 <meta name="assert" content="Rendering of conic-gradient with normalized color stops">
-<meta name="fuzzy" content="maxDifference=1;totalPixels=10000">
+<meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-10000">
 <link rel="match" href="reference/100x100-blue.html">
 <style>
   #gradient {
diff --git a/tests/wpt/tests/css/css-images/out-of-range-color-stop-conic.html b/tests/wpt/tests/css/css-images/out-of-range-color-stop-conic.html
index 1fe59a5a6b9..16bdccb948c 100644
--- a/tests/wpt/tests/css/css-images/out-of-range-color-stop-conic.html
+++ b/tests/wpt/tests/css/css-images/out-of-range-color-stop-conic.html
@@ -3,7 +3,7 @@
 <title>Conic gradient with out-of-range stops</title>
 <link rel="help" href="https://drafts.csswg.org/css-images-4/#conic-gradients">
 <meta name="assert" content="Rendering of conic-gradient with stops positioned outside of [0, 1]">
-<meta name="fuzzy" content="maxDifference=1;totalPixels=40000">
+<meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-40000">
 <link rel="match" href="reference/200x200-blue-black-green-red.html">
 <style>
   #gradient {
diff --git a/tests/wpt/tests/css/css-images/tiled-conic-gradients.html b/tests/wpt/tests/css/css-images/tiled-conic-gradients.html
index eab48b83e92..c5902c07c9a 100644
--- a/tests/wpt/tests/css/css-images/tiled-conic-gradients.html
+++ b/tests/wpt/tests/css/css-images/tiled-conic-gradients.html
@@ -3,7 +3,7 @@
 <title>Checkerboard using conic gradients</title>
 <link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#propdef-background-size">
 <meta name="assert" content="Gradients are correctly repeated.">
-<meta name="fuzzy" content="maxDifference=1;totalPixels=40000">
+<meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-40000">
 <link rel="match" href="tiled-conic-gradients-ref.html">
 <style>
   #gradient {
diff --git a/tests/wpt/tests/css/css-inline/animation/WEB_FEATURES.yml b/tests/wpt/tests/css/css-inline/animation/WEB_FEATURES.yml
new file mode 100644
index 00000000000..45a7bc89e0f
--- /dev/null
+++ b/tests/wpt/tests/css/css-inline/animation/WEB_FEATURES.yml
@@ -0,0 +1,4 @@
+features:
+- name: alignment-baseline
+  files:
+  - alignment-baseline-*
diff --git a/tests/wpt/tests/css/css-inline/parsing/WEB_FEATURES.yml b/tests/wpt/tests/css/css-inline/parsing/WEB_FEATURES.yml
new file mode 100644
index 00000000000..1bf846df2aa
--- /dev/null
+++ b/tests/wpt/tests/css/css-inline/parsing/WEB_FEATURES.yml
@@ -0,0 +1,7 @@
+features:
+- name: alignment-baseline
+  files:
+  - alignment-baseline-*
+- name: baseline-shift
+  files:
+  - baseline-shift-*
diff --git a/tests/wpt/tests/css/css-inline/text-box-trim/WEB_FEATURES.yml b/tests/wpt/tests/css/css-inline/text-box-trim/WEB_FEATURES.yml
index e9a2fc218b3..f08cd6aa7fc 100644
--- a/tests/wpt/tests/css/css-inline/text-box-trim/WEB_FEATURES.yml
+++ b/tests/wpt/tests/css/css-inline/text-box-trim/WEB_FEATURES.yml
@@ -1,3 +1,3 @@
 features:
-- name: text-box-trim
+- name: text-box
   files: "**"
diff --git a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-001-print-ref.html b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-001-print-ref.html
index f142aeec84d..301ed7d76e7 100644
--- a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-001-print-ref.html
+++ b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-001-print-ref.html
@@ -6,6 +6,9 @@
     size: 400px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-001-print.html b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-001-print.html
index c565ac7cc86..3fc6c24bf54 100644
--- a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-001-print.html
+++ b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-001-print.html
@@ -10,6 +10,9 @@
     size: 400px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-002-print-ref.html b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-002-print-ref.html
index 0d73c1675aa..86d7ddfedda 100644
--- a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-002-print-ref.html
+++ b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-002-print-ref.html
@@ -6,6 +6,9 @@
     size: 400px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-002-print.html b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-002-print.html
index 50a370dbee2..b58c0db64b0 100644
--- a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-002-print.html
+++ b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-002-print.html
@@ -10,6 +10,9 @@
     size: 400px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-003-print-ref.html b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-003-print-ref.html
index 77fbb2630bf..5b0d41404bd 100644
--- a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-003-print-ref.html
+++ b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-003-print-ref.html
@@ -6,6 +6,9 @@
     size: 400px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-003-print.html b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-003-print.html
index 9707412fa7d..ac5ffc32617 100644
--- a/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-003-print.html
+++ b/tests/wpt/tests/css/css-inline/text-box-trim/not-at-page-edges-003-print.html
@@ -10,6 +10,9 @@
     size: 400px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-masking/mask-image/mask-under-border-radius.html b/tests/wpt/tests/css/css-masking/mask-image/mask-under-border-radius.html
new file mode 100644
index 00000000000..a33e71ae121
--- /dev/null
+++ b/tests/wpt/tests/css/css-masking/mask-image/mask-under-border-radius.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-mask-image">
+<link rel="help" href="https://crbug.com/368562242">
+<link rel="match" href="../../reference/ref-filled-green-100px-square-only.html">
+<p>Test passes if there is a filled green square.</p>
+<html style="overflow: hidden">
+  <div style="margin: 0 -20px; overflow: hidden; border-radius: 5px">
+    <div style="overflow: auto; scrollbar-width: none;
+                mask-image: linear-gradient(to right, transparent 20px, red 20px 120px, transparent 120px 100%)">
+      <div style="margin: -20px; height: 140px; background: green">
+        <div style="position: absolute"></div>
+      </div>
+    </div>
+  </div>
+</div>
diff --git a/tests/wpt/tests/css/css-multicol/column-balancing-paged-001-print-ref.html b/tests/wpt/tests/css/css-multicol/column-balancing-paged-001-print-ref.html
index f0ee4df8c9d..f832a0cf70a 100644
--- a/tests/wpt/tests/css/css-multicol/column-balancing-paged-001-print-ref.html
+++ b/tests/wpt/tests/css/css-multicol/column-balancing-paged-001-print-ref.html
@@ -6,6 +6,9 @@
   <link rel="author" title="Mozilla" href="https://www.mozilla.org/">
 
   <style>
+  :root {
+    print-color-adjust: exact;
+  }
   .inner {
     column-count: 2;
     column-rule: 3px solid green;
diff --git a/tests/wpt/tests/css/css-multicol/column-balancing-paged-001-print.html b/tests/wpt/tests/css/css-multicol/column-balancing-paged-001-print.html
index 933519ab5b0..1d6f6e87f02 100644
--- a/tests/wpt/tests/css/css-multicol/column-balancing-paged-001-print.html
+++ b/tests/wpt/tests/css/css-multicol/column-balancing-paged-001-print.html
@@ -9,6 +9,9 @@
   <link rel="help" href="https://drafts.csswg.org/css-break/#breaking-rules">
 
   <style>
+  :root {
+    print-color-adjust: exact;
+  }
   .outer {
     column-count: 1;
     column-rule: 6px solid black;
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-013.html b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-013.html
new file mode 100644
index 00000000000..c9fe0aba59f
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-013.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: block-ellipsis are placed at soft wrap opportunities, even if the line would not break</title>
+<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#block-ellipsis">
+<link rel="match" href="reference/block-ellipsis-001-ref.html">
+<meta name="assert" content="The block-ellipsis is placed after the last soft wrap opportunity in the line box that fits the ellipsis. This happens even with text-wrap: nowrap, since that only prevents line wrapping, rather than removing wrap opportunities.">
+<style>
+.clamp {
+  line-clamp: 2;
+  width: 63.1ch;
+  border: 1px solid black;
+  font-family: monospace;
+  white-space: pre;
+}
+</style>
+<div class="clamp">This time, Mark, who had always been the center of attention in
+any social gathering, walked into the room uncharacteristically quietly, barely speaking as he settled into a chair.</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-014.html b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-014.html
new file mode 100644
index 00000000000..4961cf3a7a2
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-014.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: the block-ellipsis can be placed at hyphenation opportunities, even if the line would not break</title>
+<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#block-ellipsis">
+<link rel="match" href="reference/block-ellipsis-014-ref.html">
+<meta name="assert" content="The block-ellipsis is placed after the last soft wrap opportunity in the line box that fits the ellipsis. This happens even with text-wrap: nowrap, since that only prevents line wrapping, rather than removing wrap opportunities.">
+<style>
+.clamp {
+  line-clamp: 2;
+  width: 63.1ch;
+  border: 1px solid black;
+  font-family: monospace;
+  white-space: pre;
+}
+</style>
+<div class="clamp">This time, Mark, who had always been the center of attention in
+any social gathering, walked into the room uncharacteristi&shy;cally quietly, barely speaking as he settled into a chair.</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-015.html b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-015.html
new file mode 100644
index 00000000000..0a0046711c0
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-015.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: the block-ellipsis can be inserted at wbr, even if the line would not break there</title>
+<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#block-ellipsis">
+<link rel="match" href="reference/block-ellipsis-015-ref.html">
+<meta name="assert" content="The block-ellipsis is placed after the last soft wrap opportunity in the line box that fits the ellipsis. This happens even with text-wrap: nowrap, since that only prevents line wrapping, rather than removing wrap opportunities.">
+<style>
+.clamp {
+  line-clamp: 2;
+  width: 63.1ch;
+  border: 1px solid black;
+  font-family: monospace;
+  white-space: pre;
+}
+</style>
+<div class="clamp">This time, Mark, who had always been the center of attention in
+any social gathering, walked into the room uncharacteristi<wbr>cally quietly, barely speaking as he settled into a chair.</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-016.html b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-016.html
new file mode 100644
index 00000000000..00e4c601e36
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-016.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: soft wrap opportunities created by overflow-wrap are ignored for inserting block-ellipsis</title>
+<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#block-ellipsis">
+<link rel="match" href="reference/block-ellipsis-001-ref.html">
+<meta name="assert" content="The block-ellipsis is placed after the last soft wrap opportunity in the line box that fits the ellipsis. This happens even with text-wrap: nowrap, since that only prevents line wrapping, rather than removing wrap opportunities.">
+<style>
+.clamp {
+  line-clamp: 2;
+  width: 63.1ch;
+  border: 1px solid black;
+  font-family: monospace;
+  white-space: pre;
+  overflow-wrap: anywhere;
+}
+</style>
+<div class="clamp">This time, Mark, who had always been the center of attention in
+any social gathering, walked into the room uncharacteristically quietly, barely speaking as he settled into a chair.</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-017.html b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-017.html
new file mode 100644
index 00000000000..05f7896f565
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-017.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: soft wrap opportunities created by word-break are not ignored for inserting block-ellipsis</title>
+<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#block-ellipsis">
+<link rel="match" href="reference/block-ellipsis-017-ref.html">
+<meta name="assert" content="The block-ellipsis is placed after the last soft wrap opportunity in the line box that fits the ellipsis. This happens even with text-wrap: nowrap, since that only prevents line wrapping, rather than removing wrap opportunities.">
+<style>
+.clamp {
+  line-clamp: 2;
+  width: 63.1ch;
+  border: 1px solid black;
+  font-family: monospace;
+  white-space: pre;
+  word-break: break-all;
+}
+</style>
+<div class="clamp">This time, Mark, who had always been the center of attention in
+any social gathering, walked into the room uncharacteristically quietly, barely speaking as he settled into a chair.</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-018.html b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-018.html
new file mode 100644
index 00000000000..9c4ae82d003
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-018.html
@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: block-ellipsis effect on a fully displaced line's height</title>
+<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#block-ellipsis">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square.xht">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<meta name="assert" content="If the block-ellipsis results in the entire contents of a line box being displaced, the line box is considered to contain a strut. The line box's height will not depend on the height of the displaced content.">
+<style>
+.container {
+  position: relative;
+  height: 100px;
+  width: 100px;
+  font: 25px Ahem;
+}
+.bg {
+  position: absolute;
+  top: 0;
+  left: 0;
+  color: green;
+  line-height: 25px;
+}
+.red {
+  color: red;
+}
+.large {
+  font-size: 1.5em;
+}
+.clamp {
+  position: absolute;
+  width: 100px;
+  bottom: 0;
+  left: 0;
+  line-clamp: 1;
+
+  color: transparent;
+  background: linear-gradient(to top, green 0, green 1lh, red 1lh);
+  background-position: left bottom;
+}
+</style>
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div class="container">
+  <div class="bg">
+    XXXX<br>
+    XXXX<br>
+    XXXX<br>
+    <span class="red">XXXX</span>
+  </div>
+  <div class="clamp">
+    <span class="red large">XXXXXXXXX XXX</span>
+  </div>
+</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-019.tentative.html b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-019.tentative.html
new file mode 100644
index 00000000000..afee5d6eddc
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-019.tentative.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: block-ellipsis and ::first-letter</title>
+<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#line-clamp">
+<link rel="stylesheet" href="/fonts/ahem.css">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square.xht">
+<meta name="assert" content="The block overflow ellipsis must not be included in the ::first-letter pseudoelement of the line-clamp container.">
+<style>
+.container {
+  position: relative;
+  font: 25px/25px Ahem;
+}
+.bg, .clamp {
+  position: absolute;
+  top: 0;
+  left: 0;
+}
+.bg {
+  height: 100px;
+  width: 100px;
+  color: red;
+  background-color: green;
+}
+.clamp {
+  max-width: 100px;
+  line-clamp: 1;
+  color: green;
+}
+.red, .clamp::first-letter {
+  color: red;
+}
+</style>
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div class="container">
+  <div class="bg">X</div>
+
+  <div class="clamp">
+    <span class="red">
+      0000000000<br>
+      0000000000
+    </span>
+  </div>
+
+</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-020.tentative.html b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-020.tentative.html
new file mode 100644
index 00000000000..473aad392c1
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-020.tentative.html
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: block-ellipsis and ::first-letter</title>
+<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#line-clamp">
+<link rel="stylesheet" href="/fonts/ahem.css">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square.xht">
+<meta name="assert" content="The block overflow ellipsis must not be included in the ::first-letter pseudoelement of a parent of the line-clamp container.">
+<style>
+.container {
+  position: relative;
+  font: 25px/25px Ahem;
+}
+.bg, .parent {
+  position: absolute;
+  top: 0;
+  left: 0;
+}
+.bg {
+  height: 100px;
+  width: 100px;
+  color: red;
+  background-color: green;
+}
+.parent::first-line, .red {
+  color: red;
+}
+.clamp {
+  max-width: 100px;
+  line-clamp: 1;
+  color: green;
+}
+</style>
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div class="container">
+  <div class="bg">X</div>
+
+  <div class="parent">
+    <div class="clamp">
+      <span class="red">
+        0000000000<br>
+        0000000000
+      </span>
+    </div>
+  </div>
+</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-021.tentative.html b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-021.tentative.html
new file mode 100644
index 00000000000..517245ac8b0
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/block-ellipsis-021.tentative.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: block-ellipsis and ::first-line</title>
+<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#line-clamp">
+<link rel="stylesheet" href="/fonts/ahem.css">
+<link rel="match" href="/css/reference/ref-filled-green-100px-square.xht">
+<meta name="assert" content="The block overflow ellipsis must not be included in the ::first-line pseudoelement of a child of the line-clamp container.">
+<style>
+.relative {
+  position: relative;
+  font: 25px/25px Ahem;
+}
+.bg, .clamp {
+  position: absolute;
+  top: 0;
+  left: 0;
+}
+.bg {
+  height: 100px;
+  width: 100px;
+  color: red;
+  background-color: green;
+}
+.clamp {
+  line-clamp: 3;
+  color: green;
+  max-width: 100px;
+}
+.child::first-letter, .red {
+  color: red;
+}
+</style>
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div class="relative">
+  <div class="bg">XXXX<br>XXXX<br>X</div>
+
+  <div class="clamp">
+    XXXX<br>
+    XXXX
+    <div class="child">
+      <span class="red">
+        XXXXXXXXXXXXX<br>
+        XXXXXXXXXXXXX
+      </span>
+    </div>
+  </div>
+</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-014-ref.html b/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-014-ref.html
new file mode 100644
index 00000000000..d135a74cfad
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-014-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Reference</title>
+<style>
+.clamp {
+  width: 63.1ch;
+  border: 1px solid black;
+  font-family: monospace;
+  white-space: pre
+}
+</style>
+<div class="clamp">This time, Mark, who had always been the center of attention in
+any social gathering, walked into the room uncharacteristi-…</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-015-ref.html b/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-015-ref.html
new file mode 100644
index 00000000000..baa8dd1a8d7
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-015-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Reference</title>
+<style>
+.clamp {
+  width: 63.1ch;
+  border: 1px solid black;
+  font-family: monospace;
+  white-space: pre
+}
+</style>
+<div class="clamp">This time, Mark, who had always been the center of attention in
+any social gathering, walked into the room uncharacteristi…</div>
diff --git a/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-017-ref.html b/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-017-ref.html
new file mode 100644
index 00000000000..7a801508e2e
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/line-clamp/reference/block-ellipsis-017-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Reference</title>
+<style>
+.clamp {
+  width: 63.1ch;
+  border: 1px solid black;
+  font-family: monospace;
+  white-space: pre
+}
+</style>
+<div class="clamp">This time, Mark, who had always been the center of attention in
+any social gathering, walked into the room uncharacteristicall…</div>
diff --git a/tests/wpt/tests/css/css-overflow/nested-scroll-markers-under-content-visibility-auto-ref.html b/tests/wpt/tests/css/css-overflow/nested-scroll-markers-under-content-visibility-auto-ref.html
new file mode 100644
index 00000000000..afb2d5d65a2
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/nested-scroll-markers-under-content-visibility-auto-ref.html
@@ -0,0 +1,65 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>::scroll-markers with content-visibility: auto ancestors and subscrollers (ref)</title>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-pseudo">
+<link rel="author" href="mailto:vmpstr@chromium.org">
+<style>
+  #scroller {
+    width: 600px;
+    height: 300px;
+    overflow: scroll;
+    scroll-marker-group: after;
+  }
+
+  .subscroller {
+    scroll-marker-group: after;
+    overflow: scroll;
+    width: 600px;
+    height: 100px;
+  }
+
+  .cv-placeholder {
+    contain: strict;
+    width: 100px;
+    height: 100px;
+  }
+
+  #scroller::scroll-marker-group {
+    border: 3px solid black;
+    padding: 5px;
+    height: 20px;
+    display: block;
+  }
+
+  .item {
+    height: 200px;
+  }
+
+  .item::scroll-marker {
+    content: "";
+    width: 10px;
+    height: 10px;
+    background-color: blue;
+    border-radius: 50%;
+    display: inline-block;
+  }
+
+  .spacer {
+    height: 10000px;
+  }
+</style>
+<div id="scroller">
+  <div class=cv-placeholder>
+    <div class=subscroller>
+      <div class=item></div> <div class=item></div> <div class=item></div>
+    </div>
+  </div>
+  <div class=item></div> <div class=item></div> <div class=item></div>
+  <div class=spacer></div>
+  <div class=cv-placeholder>
+    <div class=subscroller>
+      <div class=item></div> <div class=item></div> <div class=item></div>
+    </div>
+  </div>
+</div>
+
diff --git a/tests/wpt/tests/css/css-overflow/nested-scroll-markers-under-content-visibility-auto.html b/tests/wpt/tests/css/css-overflow/nested-scroll-markers-under-content-visibility-auto.html
new file mode 100644
index 00000000000..0cb62fec70e
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/nested-scroll-markers-under-content-visibility-auto.html
@@ -0,0 +1,67 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>::scroll-markers with content-visibility: auto ancestors and subscrollers</title>
+<link rel="match" href="nested-scroll-markers-under-content-visibility-auto-ref.html">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-pseudo">
+<link rel="author" href="mailto:vmpstr@chromium.org">
+<link rel="assert" content="::scroll-markers should be captured by subscrollers when in content-visibility-auto">
+<style>
+  #scroller {
+    width: 600px;
+    height: 300px;
+    overflow: scroll;
+    scroll-marker-group: after;
+  }
+
+  .subscroller {
+    scroll-marker-group: after;
+    overflow: scroll;
+    width: 600px;
+    height: 100px;
+  }
+
+  .cv {
+    content-visibility: auto;
+    width: 100px;
+    height: 100px;
+  }
+
+  #scroller::scroll-marker-group {
+    border: 3px solid black;
+    padding: 5px;
+    height: 20px;
+    display: block;
+  }
+
+  .item {
+    height: 200px;
+  }
+
+  .item::scroll-marker {
+    content: "";
+    width: 10px;
+    height: 10px;
+    background-color: blue;
+    border-radius: 50%;
+    display: inline-block;
+  }
+
+  .spacer {
+    height: 10000px;
+  }
+</style>
+<div id="scroller">
+  <div class=cv>
+    <div class=subscroller>
+      <div class=item></div> <div class=item></div> <div class=item></div>
+    </div>
+  </div>
+  <div class=item></div> <div class=item></div> <div class=item></div>
+  <div class=spacer></div>
+  <div class=cv>
+    <div class=subscroller>
+      <div class=item></div> <div class=item></div> <div class=item></div>
+    </div>
+  </div>
+</div>
+
diff --git a/tests/wpt/tests/css/css-overflow/resources/root-scroll-marker-activation-iframe.html b/tests/wpt/tests/css/css-overflow/resources/root-scroll-marker-activation-iframe.html
new file mode 100644
index 00000000000..1724f9c56ea
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/resources/root-scroll-marker-activation-iframe.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: ::scroll-marker with ::scroll-marker-group doesn't propagate scroll from frame</title>
+<style>
+  :root {
+    scroll-marker-group: before;
+  }
+
+  .item {
+    height: 100vh;
+  }
+
+  .item::scroll-marker {
+    content: '';
+    background-color: blue;
+    width: 20px;
+    height: 20px;
+    display: inline-block;
+    margin-left: 10px;
+  }
+</style>
+<div class=item></div>
+<div class=item></div>
+<div class=item></div>
+<div class=item></div>
+<div class=item></div>
diff --git a/tests/wpt/tests/css/css-overflow/root-scroll-button-activation.html b/tests/wpt/tests/css/css-overflow/root-scroll-button-activation.html
new file mode 100644
index 00000000000..bb377e52fde
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/root-scroll-button-activation.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: ::scroll-button on root element activation</title>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-buttons">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<style>
+  body {
+    margin: 0;
+  }
+
+  :root::scroll-button(block-end) {
+    content: "down";
+    position: absolute;
+    top: 0;
+  }
+
+  div {
+    width: 600px;
+    height: 300px;
+    margin-bottom: 20px;
+    background: green;
+  }
+</style>
+<div></div>
+<div></div>
+<div></div>
+<script>
+  promise_test(async t => {
+    await new test_driver.Actions()
+    .pointerMove(10, 10)
+    .pointerDown()
+    .pointerUp()
+    .pointerDown()
+    .pointerUp()
+    .send();
+    assert_equals(window.scrollY, 360);
+  });
+</script>
diff --git a/tests/wpt/tests/css/css-overflow/root-scroll-button-ref.html b/tests/wpt/tests/css/css-overflow/root-scroll-button-ref.html
new file mode 100644
index 00000000000..28fc31b7ca5
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/root-scroll-button-ref.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: ::scroll-button on root element</title>
+<style>
+  body {
+    margin: 0;
+  }
+
+  .item {
+    width: 600px;
+    height: 300px;
+    margin-bottom: 20px;
+    background: green;
+  }
+</style>
+<button style="position: absolute;">down</button>
+<div id="first" class="item"></div>
+<div class="item"></div>
+<div class="item"></div>
diff --git a/tests/wpt/tests/css/css-overflow/root-scroll-button.html b/tests/wpt/tests/css/css-overflow/root-scroll-button.html
new file mode 100644
index 00000000000..a4f96f45cbc
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/root-scroll-button.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Overflow: ::scroll-button on root element</title>
+<link rel="match" href="root-scroll-button-ref.html">
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-buttons">
+<style>
+  body {
+    margin: 0;
+  }
+
+  :root::scroll-button(block-end) {
+    content: "down";
+    position: absolute;
+    top: 0;
+  }
+
+  div {
+    width: 600px;
+    height: 300px;
+    margin-bottom: 20px;
+    background: green;
+  }
+</style>
+<div></div>
+<div></div>
+<div></div>
diff --git a/tests/wpt/tests/css/css-overflow/root-scroll-marker-activation-in-iframe.html b/tests/wpt/tests/css/css-overflow/root-scroll-marker-activation-in-iframe.html
new file mode 100644
index 00000000000..4aee04eac20
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/root-scroll-marker-activation-in-iframe.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<html class="reftest-wait">
+<title>CSS Overflow: ::scroll-marker with ::scroll-marker-group on root element doesn't propagate scrolling</title>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-pseudo">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="/dom/events/scrolling/scroll_support.js"></script>
+<style>
+  body {
+    margin: 0;
+  }
+
+  #container {
+    overflow: auto;
+    height: 600px;
+    position: relative;
+  }
+
+  iframe {
+    width: 600px;
+    height: 400px;
+    position: absolute;
+    top: 500px;
+    border: 2px solid black;
+  }
+</style>
+<div id="container">
+  <iframe id="target" onload="run_test()" src="resources/root-scroll-marker-activation-iframe.html"></iframe>
+</div>
+<script>
+  function run_test() {
+    promise_test(async t => {
+      const iframe = document.getElementById("target");
+      const container = document.getElementById("container");
+      const target = iframe.contentWindow;
+      const scrollEndPromise = waitForScrollEndFallbackToDelayWithoutScrollEvent(target);
+      await new test_driver.Actions()
+        .pointerMove(140, 510)
+        .pointerDown()
+        .pointerUp()
+        .send();
+      await scrollEndPromise;
+      assert_equals(container.scrollTop, 0, "scrolling is not propagated from iframe to the main frame");
+      assert_greater_than(target.scrollY, 0, "scroll marker activation scrolls iframe");
+      document.documentElement.classList.remove("reftest-wait");
+    });
+  }
+</script>
+</html>
diff --git a/tests/wpt/tests/css/css-overflow/scroll-marker-activation-crash.html b/tests/wpt/tests/css/css-overflow/scroll-marker-activation-crash.html
new file mode 100644
index 00000000000..1f2360a1943
--- /dev/null
+++ b/tests/wpt/tests/css/css-overflow/scroll-marker-activation-crash.html
@@ -0,0 +1,77 @@
+<!doctype html>
+<html class=test-wait>
+<meta charset="utf-8">
+<title>CSS Test: ::scroll-marker crash regression test</title>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-activation">
+<script src="/dom/events/scrolling/scroll_support.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<style>
+  body {
+    margin: 0;
+  }
+
+  #marker-scroller {
+    height: 300px;
+    overflow: auto;
+    scroll-snap-type: x mandatory;
+    position: relative;
+    scroll-marker-group: before;
+    white-space: nowrap;
+  }
+
+  #marker-scroller div {
+    scroll-snap-align: start;
+    box-sizing: border-box;
+    border-radius: 5px;
+    background: lightgray;
+    border: 1px solid black;
+    display: inline-block;
+    width: 500px;
+    height: 100%;
+  }
+
+  #marker-scroller::scroll-marker-group {
+    display: flex;
+    height: 100px;
+  }
+
+  #marker-scroller div::scroll-marker {
+    content: "";
+    width: 100px;
+    height: 100px;
+    box-sizing: border-box;
+    border-radius: 5px;
+    border: 1px solid black;
+    display: inline-block;
+  }
+  #marker-scroller div::scroll-marker:target-current {
+    background: blue;
+  }
+</style>
+<fakeelement>
+  <div id="marker-scroller">
+    <div>1</div>
+    <div id="target">2</div>
+    <div>3</div>
+  </div>
+</fakeelement>
+<script>
+  async function crash() {
+    const target = document.querySelector('#target');
+    const scroller = document.querySelector('#marker-scroller');
+    const scrollEndPromise = waitForScrollEndFallbackToDelayWithoutScrollEvent(scroller);
+    /* Crash regression test for https://issues.chromium.org/407958134 */
+    actions_promise = new test_driver.Actions()
+      .pointerMove(150, 50)
+      .pointerDown()
+      .pointerUp()
+      .send();
+    await actions_promise;
+    await scrollEndPromise;
+    document.documentElement.classList.remove('test-wait');
+  };
+  crash();
+</script>
+</html>
diff --git a/tests/wpt/tests/css/css-page/background-image-only-for-print-ref.html b/tests/wpt/tests/css/css-page/background-image-only-for-print-ref.html
index c3e5d8d1c5e..3271ab98ec6 100644
--- a/tests/wpt/tests/css/css-page/background-image-only-for-print-ref.html
+++ b/tests/wpt/tests/css/css-page/background-image-only-for-print-ref.html
@@ -1,4 +1,9 @@
 <!DOCTYPE html>
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <p>
   Should print a green rectangle but not display it on screen.
 </p>
diff --git a/tests/wpt/tests/css/css-page/background-image-only-for-print.html b/tests/wpt/tests/css/css-page/background-image-only-for-print.html
index f100f7eaeed..cb931a99302 100644
--- a/tests/wpt/tests/css/css-page/background-image-only-for-print.html
+++ b/tests/wpt/tests/css/css-page/background-image-only-for-print.html
@@ -13,6 +13,10 @@
     }
   }
 
+  :root {
+    print-color-adjust: exact;
+  }
+
   #target {
     background-image: url("/images/green.png");
     height: 50px;
diff --git a/tests/wpt/tests/css/css-page/basic-pagination-001-print-ref.html b/tests/wpt/tests/css/css-page/basic-pagination-001-print-ref.html
index 3487aa6eabb..df3da84637b 100644
--- a/tests/wpt/tests/css/css-page/basic-pagination-001-print-ref.html
+++ b/tests/wpt/tests/css/css-page/basic-pagination-001-print-ref.html
@@ -5,6 +5,9 @@
     size: 293px;
     margin: 5px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/basic-pagination-001-print.html b/tests/wpt/tests/css/css-page/basic-pagination-001-print.html
index 4bdf2ac6fdb..93293ff4879 100644
--- a/tests/wpt/tests/css/css-page/basic-pagination-001-print.html
+++ b/tests/wpt/tests/css/css-page/basic-pagination-001-print.html
@@ -7,6 +7,9 @@
     size: 293px;
     margin: 5px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   div {
     break-after: page;
   }
diff --git a/tests/wpt/tests/css/css-page/basic-pagination-002-print-ref.html b/tests/wpt/tests/css/css-page/basic-pagination-002-print-ref.html
index 90e0e26502b..cf040af63d7 100644
--- a/tests/wpt/tests/css/css-page/basic-pagination-002-print-ref.html
+++ b/tests/wpt/tests/css/css-page/basic-pagination-002-print-ref.html
@@ -5,6 +5,9 @@
     size: 293px;
     margin: 5px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/basic-pagination-002-print.html b/tests/wpt/tests/css/css-page/basic-pagination-002-print.html
index 4cf0de750da..f2d07730e1c 100644
--- a/tests/wpt/tests/css/css-page/basic-pagination-002-print.html
+++ b/tests/wpt/tests/css/css-page/basic-pagination-002-print.html
@@ -7,6 +7,9 @@
     size: 293px;
     margin: 5px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     break-before: page;
     break-after: page;
diff --git a/tests/wpt/tests/css/css-page/basic-pagination-003-print-ref.html b/tests/wpt/tests/css/css-page/basic-pagination-003-print-ref.html
index 6fd7ef2d453..9d3810213a5 100644
--- a/tests/wpt/tests/css/css-page/basic-pagination-003-print-ref.html
+++ b/tests/wpt/tests/css/css-page/basic-pagination-003-print-ref.html
@@ -5,6 +5,9 @@
     size: 293px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/basic-pagination-003-print.html b/tests/wpt/tests/css/css-page/basic-pagination-003-print.html
index 56f10d2dc72..6a133059f99 100644
--- a/tests/wpt/tests/css/css-page/basic-pagination-003-print.html
+++ b/tests/wpt/tests/css/css-page/basic-pagination-003-print.html
@@ -7,6 +7,9 @@
     size: 293px;
     margin: 5px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/basic-pagination-004-print-ref.html b/tests/wpt/tests/css/css-page/basic-pagination-004-print-ref.html
index 3487aa6eabb..df3da84637b 100644
--- a/tests/wpt/tests/css/css-page/basic-pagination-004-print-ref.html
+++ b/tests/wpt/tests/css/css-page/basic-pagination-004-print-ref.html
@@ -5,6 +5,9 @@
     size: 293px;
     margin: 5px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/basic-pagination-004-print.html b/tests/wpt/tests/css/css-page/basic-pagination-004-print.html
index 0d6f989b185..15e0a7eaf06 100644
--- a/tests/wpt/tests/css/css-page/basic-pagination-004-print.html
+++ b/tests/wpt/tests/css/css-page/basic-pagination-004-print.html
@@ -9,6 +9,9 @@
     size: 293px;
     margin: 5px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/basic-pagination-005-print.html b/tests/wpt/tests/css/css-page/basic-pagination-005-print.html
index 03c04a41c4d..1429f05f464 100644
--- a/tests/wpt/tests/css/css-page/basic-pagination-005-print.html
+++ b/tests/wpt/tests/css/css-page/basic-pagination-005-print.html
@@ -9,6 +9,9 @@
     size: 293px;
     margin: 5px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/body-background-slr-print-ref.html b/tests/wpt/tests/css/css-page/body-background-slr-print-ref.html
index d47a59af4d3..ca55f669e27 100644
--- a/tests/wpt/tests/css/css-page/body-background-slr-print-ref.html
+++ b/tests/wpt/tests/css/css-page/body-background-slr-print-ref.html
@@ -1,5 +1,8 @@
 <!DOCTYPE html>
 <style>
+:root {
+  print-color-adjust: exact;
+}
 body {
   margin: 20px;
   background: linear-gradient(lightgray 0%, lightgray 50%, white 50%, white 100%)
diff --git a/tests/wpt/tests/css/css-page/body-background-slr-print.html b/tests/wpt/tests/css/css-page/body-background-slr-print.html
index d7c1e91db7c..a99ea9e26bf 100644
--- a/tests/wpt/tests/css/css-page/body-background-slr-print.html
+++ b/tests/wpt/tests/css/css-page/body-background-slr-print.html
@@ -3,7 +3,10 @@
 <meta name="assert" content="Body's background is fragmented correctly in sideways-lr writing mode.">
 <link rel="match" href="body-background-slr-print-ref.html">
 <style>
-html { writing-mode: sideways-lr; }
+:root {
+  print-color-adjust: exact;
+  writing-mode: sideways-lr;
+}
 body {
   margin: 20px;
   background: linear-gradient(90deg, lightgray 0%, lightgray 50%, white 50%, white 100%)
diff --git a/tests/wpt/tests/css/css-page/body-background-srl-print-ref.html b/tests/wpt/tests/css/css-page/body-background-srl-print-ref.html
index 293bcbae7d5..81ff9e23925 100644
--- a/tests/wpt/tests/css/css-page/body-background-srl-print-ref.html
+++ b/tests/wpt/tests/css/css-page/body-background-srl-print-ref.html
@@ -1,5 +1,8 @@
 <!DOCTYPE html>
 <style>
+:root {
+  print-color-adjust: exact;
+}
 body {
   margin: 20px;
   background: linear-gradient(to bottom, white 0%, white 50%, lightgray 50%, lightgray 100%);
diff --git a/tests/wpt/tests/css/css-page/body-background-srl-print.html b/tests/wpt/tests/css/css-page/body-background-srl-print.html
index 1c5f1c33622..ebf5adb821b 100644
--- a/tests/wpt/tests/css/css-page/body-background-srl-print.html
+++ b/tests/wpt/tests/css/css-page/body-background-srl-print.html
@@ -3,7 +3,10 @@
 <meta name="assert" content="Body's background is fragmented correctly in sideways-rl writing mode.">
 <link rel="match" href="body-background-srl-print-ref.html">
 <style>
-html { writing-mode: sideways-rl; }
+:root {
+  print-color-adjust: exact;
+  writing-mode: sideways-rl;
+}
 body {
   margin: 20px;
   background: linear-gradient(to left, lightgray 0%, lightgray 50%, white 50%, white 100%);
diff --git a/tests/wpt/tests/css/css-page/body-background-vlr-print-ref.html b/tests/wpt/tests/css/css-page/body-background-vlr-print-ref.html
index 7b966a5b3d5..4c2f5438760 100644
--- a/tests/wpt/tests/css/css-page/body-background-vlr-print-ref.html
+++ b/tests/wpt/tests/css/css-page/body-background-vlr-print-ref.html
@@ -1,5 +1,8 @@
 <!DOCTYPE html>
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/body-background-vlr-print.html b/tests/wpt/tests/css/css-page/body-background-vlr-print.html
index 505e74400d5..eec1914ea02 100644
--- a/tests/wpt/tests/css/css-page/body-background-vlr-print.html
+++ b/tests/wpt/tests/css/css-page/body-background-vlr-print.html
@@ -3,7 +3,10 @@
 <meta name="assert" content="Body's background is fragmented correctly in vertical-lr writing mode.">
 <link rel="match" href="body-background-vlr-print-ref.html">
 <style>
-  html { writing-mode: vertical-lr; }
+  :root {
+    print-color-adjust: exact;
+    writing-mode: vertical-lr;
+  }
   body {
     margin: 0;
     background: linear-gradient(90deg, lightgray 0%, lightgray 50%, white 50%, white 100%)
diff --git a/tests/wpt/tests/css/css-page/body-background-vrl-print-ref.html b/tests/wpt/tests/css/css-page/body-background-vrl-print-ref.html
index bbc265e6cfa..77c12e92653 100644
--- a/tests/wpt/tests/css/css-page/body-background-vrl-print-ref.html
+++ b/tests/wpt/tests/css/css-page/body-background-vrl-print-ref.html
@@ -1,5 +1,8 @@
 <!DOCTYPE html>
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/body-background-vrl-print.html b/tests/wpt/tests/css/css-page/body-background-vrl-print.html
index 6f9df91c5dc..48ec7a70a5c 100644
--- a/tests/wpt/tests/css/css-page/body-background-vrl-print.html
+++ b/tests/wpt/tests/css/css-page/body-background-vrl-print.html
@@ -3,7 +3,10 @@
 <meta name="assert" content="Body's background is fragmented correctly in vertical-rl writing mode.">
 <link rel="match" href="body-background-vrl-print-ref.html">
 <style>
-  html { writing-mode: vertical-rl; }
+  :root {
+    print-color-adjust: exact;
+    writing-mode: vertical-rl;
+  }
   body {
     margin: 0;
     background: linear-gradient(90deg, lightgray 0%, lightgray 50%, white 50%, white 100%)
diff --git a/tests/wpt/tests/css/css-page/crashtests/match-media-listener-relayout-inside-fixed-size-overflow-hidden-print.html b/tests/wpt/tests/css/css-page/crashtests/match-media-listener-relayout-inside-fixed-size-overflow-hidden-print.html
index 77f9dc335fd..c749535875a 100644
--- a/tests/wpt/tests/css/css-page/crashtests/match-media-listener-relayout-inside-fixed-size-overflow-hidden-print.html
+++ b/tests/wpt/tests/css/css-page/crashtests/match-media-listener-relayout-inside-fixed-size-overflow-hidden-print.html
@@ -1,6 +1,11 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1507840">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <div style="position:relative; overflow:hidden; width:100px; height:100px;">
   <div style="position:absolute; width:100px; height:100px; background:green;">
     <div id="trouble"></div>
diff --git a/tests/wpt/tests/css/css-page/cssom/dynamic-001-print-ref.html b/tests/wpt/tests/css/css-page/cssom/dynamic-001-print-ref.html
index e697d8e23db..850bf80b720 100644
--- a/tests/wpt/tests/css/css-page/cssom/dynamic-001-print-ref.html
+++ b/tests/wpt/tests/css/css-page/cssom/dynamic-001-print-ref.html
@@ -5,6 +5,9 @@
     size: 700px 150px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/cssom/dynamic-001-print.html b/tests/wpt/tests/css/css-page/cssom/dynamic-001-print.html
index 90799d3a721..5cdf26454c1 100644
--- a/tests/wpt/tests/css/css-page/cssom/dynamic-001-print.html
+++ b/tests/wpt/tests/css/css-page/cssom/dynamic-001-print.html
@@ -5,6 +5,9 @@
 <link rel="match" href="dynamic-001-print-ref.html">
 <style id="sheet">
   @page { }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     background: green;
   }
diff --git a/tests/wpt/tests/css/css-page/cssom/margin-001.html b/tests/wpt/tests/css/css-page/cssom/margin-001.html
index 29c38b2f98e..a9fdb24caf7 100644
--- a/tests/wpt/tests/css/css-page/cssom/margin-001.html
+++ b/tests/wpt/tests/css/css-page/cssom/margin-001.html
@@ -67,8 +67,6 @@
     var pageRule = sheet.rules[2];
     var style = pageRule.style;
     assert_equals(style.length, 3);
-    assert_equals(style.color, "inherit");
-    assert_equals(style.columnCount, "7");
     assert_equals(style.marginLeft, "111px");
 
     assert_equals(pageRule.cssRules.length, 18);
diff --git a/tests/wpt/tests/css/css-page/cssom/page-002.html b/tests/wpt/tests/css/css-page/cssom/page-002.html
index 0060d295b4a..4669ec84a78 100644
--- a/tests/wpt/tests/css/css-page/cssom/page-002.html
+++ b/tests/wpt/tests/css/css-page/cssom/page-002.html
@@ -13,23 +13,18 @@
   var style = pageRule.style;
   test(()=> {
     assert_equals(style.length, 0);
-    style.setProperty("widows", "7");
-    assert_equals(style.length, 1);
-    assert_equals(style.widows, "7");
     style.setProperty("margin-left", "50%");
-    assert_equals(style.length, 2);
+    assert_equals(style.length, 1);
     assert_equals(style.marginLeft, "50%");
     style.setProperty("margin-left", "100px");
-    assert_equals(style.length, 2);
+    assert_equals(style.length, 1);
     assert_equals(style.marginLeft, "100px");
     style.setProperty("margin", "auto");
-    assert_equals(style.length, 5);
+    assert_equals(style.length, 4);
     assert_equals(style.marginLeft, "auto");
   }, "Add declarations");
 
   test(()=> {
-    assert_equals(style.length, 5);
-    style.removeProperty("widows");
     assert_equals(style.length, 4);
     style.removeProperty("margin");
     assert_equals(style.length, 0);
diff --git a/tests/wpt/tests/css/css-page/fixedpos-009-print-ref.html b/tests/wpt/tests/css/css-page/fixedpos-009-print-ref.html
index 31a6a6724fa..970308cfbbc 100644
--- a/tests/wpt/tests/css/css-page/fixedpos-009-print-ref.html
+++ b/tests/wpt/tests/css/css-page/fixedpos-009-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/fixedpos-009-print.html b/tests/wpt/tests/css/css-page/fixedpos-009-print.html
index 803a077c0a7..3b784670074 100644
--- a/tests/wpt/tests/css/css-page/fixedpos-009-print.html
+++ b/tests/wpt/tests/css/css-page/fixedpos-009-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="http://crbug.com/337791467">
 <link rel="match" href="fixedpos-009-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/fixedpos-010-print-ref.html b/tests/wpt/tests/css/css-page/fixedpos-010-print-ref.html
index 90bd5e7fc31..8eb61333a83 100644
--- a/tests/wpt/tests/css/css-page/fixedpos-010-print-ref.html
+++ b/tests/wpt/tests/css/css-page/fixedpos-010-print-ref.html
@@ -8,6 +8,9 @@
   @page large {
     size: 500px 400px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/fixedpos-010-print.html b/tests/wpt/tests/css/css-page/fixedpos-010-print.html
index cdd50828d86..d333f7279cd 100644
--- a/tests/wpt/tests/css/css-page/fixedpos-010-print.html
+++ b/tests/wpt/tests/css/css-page/fixedpos-010-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://drafts.csswg.org/css-position-3/#valdef-position-fixed">
 <link rel="match" href="fixedpos-010-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     size: 400px;
     margin: 0;
diff --git a/tests/wpt/tests/css/css-page/fixedpos-011-print-ref.html b/tests/wpt/tests/css/css-page/fixedpos-011-print-ref.html
index 8f0be4ea2fa..ba741eb940a 100644
--- a/tests/wpt/tests/css/css-page/fixedpos-011-print-ref.html
+++ b/tests/wpt/tests/css/css-page/fixedpos-011-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/fixedpos-011-print.html b/tests/wpt/tests/css/css-page/fixedpos-011-print.html
index 556965138cc..89154296dc4 100644
--- a/tests/wpt/tests/css/css-page/fixedpos-011-print.html
+++ b/tests/wpt/tests/css/css-page/fixedpos-011-print.html
@@ -7,6 +7,9 @@
   body {
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   .cover-me {
     position: absolute;
     z-index: -1;
diff --git a/tests/wpt/tests/css/css-page/fixedpos-with-iframe-print-ref.html b/tests/wpt/tests/css/css-page/fixedpos-with-iframe-print-ref.html
index 5c171404508..718d15dfee0 100644
--- a/tests/wpt/tests/css/css-page/fixedpos-with-iframe-print-ref.html
+++ b/tests/wpt/tests/css/css-page/fixedpos-with-iframe-print-ref.html
@@ -1,5 +1,10 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <p>The word "PASS" should be seen below.</p>
 <div style="position:absolute; background:blue;">
   <iframe src="data:text/html,PASS" style="width:8em; height:3em; background:yellow;"></iframe>
diff --git a/tests/wpt/tests/css/css-page/fixedpos-with-iframe-print.html b/tests/wpt/tests/css/css-page/fixedpos-with-iframe-print.html
index 5102d045c42..215643601b2 100644
--- a/tests/wpt/tests/css/css-page/fixedpos-with-iframe-print.html
+++ b/tests/wpt/tests/css/css-page/fixedpos-with-iframe-print.html
@@ -2,6 +2,11 @@
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1414873">
 <link rel="match" href="fixedpos-with-iframe-print-ref.html">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <p>The word "PASS" should be seen below.</p>
 <div style="position:fixed; background:blue;">
   <iframe src="data:text/html,PASS" style="width:8em; height:3em; background:yellow;"></iframe>
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/auto-margins-002-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/auto-margins-002-print-ref.html
index 56adf2a5401..57d966fc46d 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/auto-margins-002-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/auto-margins-002-print-ref.html
@@ -5,6 +5,9 @@
     margin: 0;
     size: 500px 440px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     display: grid;
     grid-template-columns: 100px auto 100px;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/auto-margins-002-print.html b/tests/wpt/tests/css/css-page/margin-boxes/auto-margins-002-print.html
index 5b424941cad..28d091ffa1a 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/auto-margins-002-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/auto-margins-002-print.html
@@ -106,6 +106,9 @@
       background: green;
     }
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     background: white;
   }
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/background-001-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/background-001-print-ref.html
index d43af0ca4bf..af1215c88eb 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/background-001-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/background-001-print-ref.html
@@ -4,6 +4,9 @@
   @page {
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/background-001-print.html b/tests/wpt/tests/css/css-page/margin-boxes/background-001-print.html
index 66560fce099..0e6db527320 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/background-001-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/background-001-print.html
@@ -12,6 +12,9 @@
       background: url(/images/green.png);
     }
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/content-001-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/content-001-print-ref.html
index 00c44928daa..ac79c15cc05 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/content-001-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/content-001-print-ref.html
@@ -5,6 +5,9 @@
     size: 400px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/content-001-print.html b/tests/wpt/tests/css/css-page/margin-boxes/content-001-print.html
index 11b5bd6f44d..cf61311491d 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/content-001-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/content-001-print.html
@@ -4,6 +4,9 @@
 <meta name="assert" content="Basic content property test, with just text, and various ways of expressing nothingness.">
 <link rel="match" href="content-001-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     size: 400px;
     margin: 100px;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/content-003-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/content-003-print-ref.html
index ba45b88cd4d..25390c7f3ca 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/content-003-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/content-003-print-ref.html
@@ -4,6 +4,9 @@
   @page {
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-003-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-003-print-ref.html
index c491cdde98e..fd761a19429 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-003-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-003-print-ref.html
@@ -3,7 +3,8 @@
 <meta name="flags" content="ahem">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <style>
-  html {
+  :root {
+    print-color-adjust: exact;
     font: 16px/1 Ahem;
   }
   @page {
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-003-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-003-print.html
index fe9f26da5d7..ed0d62f9530 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-003-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-003-print.html
@@ -6,6 +6,9 @@
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <link rel="match" href="dimensions-003-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 6em;
     width: 20em;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-004-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-004-print-ref.html
index 3f45190e330..4ce84aacf1f 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-004-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-004-print-ref.html
@@ -11,6 +11,9 @@
     width: 32em;
     height: 27em;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     display: grid;
     grid-template-columns: 7em auto 5em;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-004-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-004-print.html
index 80bcc43fb39..c45732790df 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-004-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-004-print.html
@@ -6,6 +6,9 @@
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <link rel="match" href="dimensions-004-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 4em 5em 8em 7em;
     width: 20em;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-005-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-005-print-ref.html
index 1749b1c7147..79774b8bc4d 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-005-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-005-print-ref.html
@@ -3,7 +3,8 @@
 <meta name="flags" content="ahem">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <style>
-  html {
+  :root {
+    print-color-adjust: exact;
     font: 16px/1 Ahem;
   }
   @page {
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-005-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-005-print.html
index 2823424f39a..6aafaf98a66 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-005-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-005-print.html
@@ -6,6 +6,9 @@
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <link rel="match" href="dimensions-005-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 6em;
     width: 20em;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-006-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-006-print-ref.html
index f6aa9e60f48..bd989f0d982 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-006-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-006-print-ref.html
@@ -3,7 +3,8 @@
 <meta name="flags" content="ahem">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <style>
-  html {
+  :root {
+    print-color-adjust: exact;
     font: 16px/1 Ahem;
   }
   @page {
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-006-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-006-print.html
index 6ea477f2c84..b06c41fae68 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-006-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-006-print.html
@@ -6,6 +6,9 @@
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <link rel="match" href="dimensions-006-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 6em;
     width: 20em;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-007-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-007-print-ref.html
index b91c086879a..bd67f064e89 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-007-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-007-print-ref.html
@@ -3,7 +3,8 @@
 <meta name="flags" content="ahem">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <style>
-  html {
+  :root {
+    print-color-adjust: exact;
     font: 16px/1 Ahem;
   }
   @page {
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-007-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-007-print.html
index cf7e5f50754..1f7edb53766 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-007-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-007-print.html
@@ -6,6 +6,9 @@
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <link rel="match" href="dimensions-007-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 12em 6em;
     width: 20em;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-008-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-008-print-ref.html
index 5bd141a28e1..fb96506d4d5 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-008-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-008-print-ref.html
@@ -3,7 +3,8 @@
 <meta name="flags" content="ahem">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <style>
-  html {
+  :root {
+    print-color-adjust: exact;
     font: 16px/1 Ahem;
   }
   @page {
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-008-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-008-print.html
index 8bdf0cdac0b..5d25535aa1e 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-008-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-008-print.html
@@ -6,6 +6,9 @@
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <link rel="match" href="dimensions-008-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 6em;
     width: 20em;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-009-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-009-print-ref.html
index 922d165efa1..b946f1eaaff 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-009-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-009-print-ref.html
@@ -3,7 +3,8 @@
 <meta name="flags" content="ahem">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <style>
-  html {
+  :root {
+    print-color-adjust: exact;
     font: 16px/1 Ahem;
   }
   @page {
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-009-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-009-print.html
index 602cc5680ec..10f796913f5 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-009-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-009-print.html
@@ -6,6 +6,9 @@
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <link rel="match" href="dimensions-009-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 6em;
     width: 20em;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-010-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-010-print-ref.html
index a4c0b4702d5..c2c98dd6d1a 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-010-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-010-print-ref.html
@@ -5,6 +5,9 @@
     size: 650px 500px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-010-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-010-print.html
index 1ebaa6d9288..28e8f87736c 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-010-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-010-print.html
@@ -4,6 +4,9 @@
 <meta name="assert" content="Zero min/max content min/max size.">
 <link rel="match" href="dimensions-010-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 100px;
     size: 650px 500px;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-011-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-011-print-ref.html
index 54983175e3d..dc84a0e6c87 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-011-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-011-print-ref.html
@@ -3,7 +3,8 @@
 <meta name="flags" content="ahem">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <style>
-  html {
+  :root {
+    print-color-adjust: exact;
     font: 16px/1 Ahem;
   }
   @page {
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-011-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-011-print.html
index e51d1fbd75e..9dbbae94a6f 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-011-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-011-print.html
@@ -6,6 +6,9 @@
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <link rel="match" href="dimensions-011-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 6em;
     width: 20em;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-012-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-012-print-ref.html
index e62880031a1..6dfa80b4406 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-012-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-012-print-ref.html
@@ -3,7 +3,8 @@
 <meta name="flags" content="ahem">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <style>
-  html {
+  :root {
+    print-color-adjust: exact;
     font: 16px/1 Ahem;
   }
   @page {
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-012-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-012-print.html
index 6b4ac2c28c7..1536312f85f 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-012-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-012-print.html
@@ -6,6 +6,9 @@
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <link rel="match" href="dimensions-012-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 4em 5em 8em 7em;
     width: 20em;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-013-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-013-print-ref.html
index a131b564fd6..1b7dfed8f70 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-013-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-013-print-ref.html
@@ -3,7 +3,8 @@
 <meta name="flags" content="ahem">
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <style>
-  html {
+  :root {
+    print-color-adjust: exact;
     font: 16px/1 Ahem;
   }
   @page {
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-013-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-013-print.html
index 4540b071906..d8fd801d147 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-013-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-013-print.html
@@ -6,6 +6,9 @@
 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
 <link rel="match" href="dimensions-013-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 6em;
     width: 20em;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-014-print.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-014-print.html
index d126f2d0c91..0a31e8f3665 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-014-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-014-print.html
@@ -7,7 +7,8 @@
 <!-- Note: Using the ref from the preceding test here. -->
 <link rel="match" href="dimensions-013-print-ref.html">
 <style>
-  html {
+  :root {
+    print-color-adjust: exact;
     writing-mode: vertical-rl;
   }
   @page {
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-015-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-015-print-ref.html
index d61359f8aae..d834df34ae3 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-015-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-015-print-ref.html
@@ -6,6 +6,9 @@
     height: 8in;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-015-print.tentative.html b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-015-print.tentative.html
index 1f7bf1fdc09..14905102014 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/dimensions-015-print.tentative.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/dimensions-015-print.tentative.html
@@ -21,6 +21,9 @@
       content: "";
     }
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/inapplicable-properties-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/inapplicable-properties-print-ref.html
index 157cb8effa4..a3cfc9cdca6 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/inapplicable-properties-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/inapplicable-properties-print-ref.html
@@ -5,6 +5,9 @@
     size: 400px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/inapplicable-properties-print.html b/tests/wpt/tests/css/css-page/margin-boxes/inapplicable-properties-print.html
index 9ca4087a164..df5d8acfea9 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/inapplicable-properties-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/inapplicable-properties-print.html
@@ -4,6 +4,9 @@
 <meta name="assert" content="Test that inapplicable properties are ignored.">
 <link rel="match" href="inapplicable-properties-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     size: 400px;
     margin: 100px;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/paint-order-001-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/paint-order-001-print-ref.html
index 2677aee123c..a3a889697ce 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/paint-order-001-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/paint-order-001-print-ref.html
@@ -5,6 +5,9 @@
     margin: 0;
     size: 500px 400px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     display: grid;
     grid-template-columns: 100px auto 100px;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/paint-order-001-print.html b/tests/wpt/tests/css/css-page/margin-boxes/paint-order-001-print.html
index 839762f0b9a..6b99a79ff16 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/paint-order-001-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/paint-order-001-print.html
@@ -4,6 +4,9 @@
 <meta name="assert" content="Test default vertical and horizontal alignment for all 16 margin boxes">
 <link rel="match" href="paint-order-001-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 100px;
     size: 500px 400px;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/paint-order-002-print.html b/tests/wpt/tests/css/css-page/margin-boxes/paint-order-002-print.html
index ac00e154fac..a5d687f879e 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/paint-order-002-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/paint-order-002-print.html
@@ -7,6 +7,9 @@
      difference. -->
 <link rel="match" href="paint-order-001-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 100px;
     size: 500px 400px;
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/paint-order-003-print-ref.html b/tests/wpt/tests/css/css-page/margin-boxes/paint-order-003-print-ref.html
index 92bfe8757f6..ef6b859e215 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/paint-order-003-print-ref.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/paint-order-003-print-ref.html
@@ -5,6 +5,9 @@
     size: 500px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/margin-boxes/paint-order-003-print.html b/tests/wpt/tests/css/css-page/margin-boxes/paint-order-003-print.html
index 0ce4618a148..4cdc4d5b4f6 100644
--- a/tests/wpt/tests/css/css-page/margin-boxes/paint-order-003-print.html
+++ b/tests/wpt/tests/css/css-page/margin-boxes/paint-order-003-print.html
@@ -4,6 +4,9 @@
 <meta name="assert" content="Test margin boxes with z-index.">
 <link rel="match" href="paint-order-003-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     size: 500px;
     margin: 50px;
diff --git a/tests/wpt/tests/css/css-page/media-queries-001-print-ref.html b/tests/wpt/tests/css/css-page/media-queries-001-print-ref.html
index 35af04dc3c4..d84d9ee8e88 100644
--- a/tests/wpt/tests/css/css-page/media-queries-001-print-ref.html
+++ b/tests/wpt/tests/css/css-page/media-queries-001-print-ref.html
@@ -5,6 +5,9 @@
     size: 10in;
     margin: 2in;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: green;
diff --git a/tests/wpt/tests/css/css-page/media-queries-001-print.html b/tests/wpt/tests/css/css-page/media-queries-001-print.html
index 01b2a00e470..61dae2a0243 100644
--- a/tests/wpt/tests/css/css-page/media-queries-001-print.html
+++ b/tests/wpt/tests/css/css-page/media-queries-001-print.html
@@ -7,6 +7,9 @@
     size: 10in;
     margin: 2in;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     width: 4in;
diff --git a/tests/wpt/tests/css/css-page/media-queries-003-print-ref.html b/tests/wpt/tests/css/css-page/media-queries-003-print-ref.html
index 99642ca5674..f1f901b85c8 100644
--- a/tests/wpt/tests/css/css-page/media-queries-003-print-ref.html
+++ b/tests/wpt/tests/css/css-page/media-queries-003-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin-right: 108px; }
 </style>
 <div style="position:absolute; right:0; bottom:0; width:100px; height:100px; background:green;"></div>
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-003-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-003-print.html
index 76905b180a1..c6bbefddc63 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-003-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-003-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="reference/monolithic-overflow-4-pages-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-004-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-004-print.html
index ea5a659bd84..e1c492a4220 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-004-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-004-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="reference/monolithic-overflow-4-pages-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="height:390vh;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-005-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-005-print.html
index bb0fc212fc0..d690fc3b834 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-005-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-005-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="reference/monolithic-overflow-4-pages-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="display:flex; flex-flow:column; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-006-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-006-print.html
index 1cbcdbbe1e5..416617ebc65 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-006-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-006-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="reference/monolithic-overflow-4-pages-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="display:flex; flex-flow:column; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-007-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-007-print.html
index 14a6f051fec..34fa065bb3c 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-007-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-007-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="reference/monolithic-overflow-4-pages-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="display:grid; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-008-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-008-print.html
index ff302dc30ca..576ced54595 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-008-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-008-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="reference/monolithic-overflow-4-pages-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="display:grid; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-009-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-009-print.html
index bdff66e791c..0a62f821178 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-009-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-009-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="reference/monolithic-overflow-4-pages-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="display:table; width:100%; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-010-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-010-print.html
index a75c932d30b..325d714e031 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-010-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-010-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="reference/monolithic-overflow-4-pages-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="display:table; width:100%; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-011-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-011-print.html
index 973a3aff4dc..b3388892cb9 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-011-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-011-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="reference/monolithic-overflow-4-pages-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="display:table; width:100%; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-012-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-012-print-ref.html
index e47ca880f93..2dd7adc644c 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-012-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-012-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-012-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-012-print.html
index 53ed74bc728..fb307d60ff6 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-012-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-012-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="monolithic-overflow-012-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="float:left; width:100%; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-013-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-013-print-ref.html
index e47ca880f93..2dd7adc644c 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-013-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-013-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-013-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-013-print.html
index b9a174879d7..3c16293c19e 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-013-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-013-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="monolithic-overflow-013-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="position:absolute; width:100%; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-014-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-014-print-ref.html
index a74e0d19a55..0aca6e03a48 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-014-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-014-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="display:flow-root; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-014-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-014-print.html
index d12ddf4c684..d993acc58d0 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-014-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-014-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="monolithic-overflow-014-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-015-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-015-print-ref.html
index db44a3ee21e..aa26df11c32 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-015-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-015-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="width:50px; height:350vh; background:hotpink;"></div>
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-015-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-015-print.html
index d52605605c9..a1b975df3bf 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-015-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-015-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="monolithic-overflow-015-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="display:inline-block; vertical-align:top; width:50px; height:350vh; background:hotpink;"></div><br>
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-016-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-016-print-ref.html
index a675fb966c5..62ce80590d1 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-016-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-016-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     line-height: 20px;
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-016-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-016-print.html
index 029523e924a..639296e6189 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-016-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-016-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="monolithic-overflow-016-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     line-height: 20px;
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-017-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-017-print-ref.html
index 45f839787e0..3fe43748594 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-017-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-017-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="line-height:20px;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-017-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-017-print.html
index c8ce9060fff..0183c82bf62 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-017-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-017-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="monolithic-overflow-017-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="display:table; width:100%; line-height:20px;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-018-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-018-print-ref.html
index cf31737d6c3..3e4d6c99564 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-018-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-018-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="width:20px; height:280vh; background:blue;"></div>
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-018-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-018-print.html
index 93da11dc62e..fb3164395c9 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-018-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-018-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="monolithic-overflow-018-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="contain:size; width:20px; height:280vh; background:blue;"></div>
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-019-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-019-print-ref.html
index f37740ae7e6..501a8b6a961 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-019-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-019-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="height:50vh; border:solid; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-019-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-019-print.html
index 3740b5d5b0b..af5ba41bfa6 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-019-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-019-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="monolithic-overflow-019-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="height:50vh; border:solid; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-020-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-020-print-ref.html
index 528c4980de5..6b40bcae957 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-020-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-020-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="float:right; width:20%; border:3px solid;">
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-020-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-020-print.html
index 403d932d643..a296ba4d3d7 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-020-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-020-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1402540">
 <link rel="match" href="monolithic-overflow-020-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <!-- Check that monolithic overflow doesn't disrupt layout of a sibling
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-021-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-021-print-ref.html
index 112b1ebdccf..e1dc3792df6 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-021-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-021-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-021-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-021-print.html
index 584c4943dcf..01355f5686b 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-021-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-021-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1451760">
 <link rel="match" href="monolithic-overflow-021-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-022-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-022-print-ref.html
index 64572dd6392..d70edf98fda 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-022-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-022-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-022-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-022-print.html
index d37c74ad8ac..a7bfc5a3477 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-022-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-022-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://www.w3.org/TR/css-break-3/#possible-breaks">
 <link rel="match" href="monolithic-overflow-022-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-023-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-023-print-ref.html
index bdc4eb1ab0e..4f841b3cc4e 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-023-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-023-print-ref.html
@@ -5,6 +5,9 @@
     size: 600px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-023-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-023-print.html
index c047d486575..4ccecf0c37b 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-023-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-023-print.html
@@ -7,6 +7,9 @@
     size: 600px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-024-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-024-print-ref.html
index fc964fde32d..4812447034f 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-024-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-024-print-ref.html
@@ -5,6 +5,9 @@
     size: 100px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-025-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-025-print-ref.html
index edbb9ac011a..cebca7e8381 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-025-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-025-print-ref.html
@@ -5,6 +5,9 @@
     size: 100px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-027-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-027-print-ref.html
index 560f137bf52..f18233d7ad0 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-027-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-027-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     color: white;
     margin: 0;
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-027-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-027-print.html
index c7cfd37e2e8..0713b2061f9 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-027-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-027-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://issues.chromium.org/41496759">
 <link rel="match" href="monolithic-overflow-027-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     color: white;
     margin: 0;
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-028-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-028-print-ref.html
index 560f137bf52..f18233d7ad0 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-028-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-028-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     color: white;
     margin: 0;
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-028-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-028-print.html
index c549db6410d..195110a0bec 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-028-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-028-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://issues.chromium.org/41496759">
 <link rel="match" href="monolithic-overflow-028-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     color: white;
     margin: 0;
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-029-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-029-print-ref.html
index 560f137bf52..f18233d7ad0 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-029-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-029-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     color: white;
     margin: 0;
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-029-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-029-print.html
index c869d87d683..b201533ac94 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-029-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-029-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://issues.chromium.org/41496759">
 <link rel="match" href="monolithic-overflow-029-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     color: white;
     margin: 0;
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-030-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-030-print-ref.html
index d8468e3b14d..ec371d46976 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-030-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-030-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-030-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-030-print.html
index e36f25434df..7915ec2995c 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-030-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-030-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://issues.chromium.org/41496759">
 <link rel="match" href="monolithic-overflow-030-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-031-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-031-print-ref.html
index c2d8b7ea5ff..22f144beb9f 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-031-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-031-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-031-print.html b/tests/wpt/tests/css/css-page/monolithic-overflow-031-print.html
index c1784900622..7cb16ffebc5 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-031-print.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-031-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://issues.chromium.org/40415661">
 <link rel="match" href="monolithic-overflow-031-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-032-print-ref.html b/tests/wpt/tests/css/css-page/monolithic-overflow-032-print-ref.html
index 36724ac929d..18b1a5a5303 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-032-print-ref.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-032-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/monolithic-overflow-032-print.tentative.html b/tests/wpt/tests/css/css-page/monolithic-overflow-032-print.tentative.html
index ad7ccf029f6..390276127b5 100644
--- a/tests/wpt/tests/css/css-page/monolithic-overflow-032-print.tentative.html
+++ b/tests/wpt/tests/css/css-page/monolithic-overflow-032-print.tentative.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://issues.chromium.org/40415661">
 <link rel="match" href="monolithic-overflow-032-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-background-001-print.html b/tests/wpt/tests/css/css-page/page-background-001-print.html
index e1bc2196940..354dc48a490 100644
--- a/tests/wpt/tests/css/css-page/page-background-001-print.html
+++ b/tests/wpt/tests/css/css-page/page-background-001-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="http://crbug.com/351332645">
 <link rel="match" href="page-background-001-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin-left: 100px;
     background: url(support/cat.png) no-repeat;
diff --git a/tests/wpt/tests/css/css-page/page-background-002-print.html b/tests/wpt/tests/css/css-page/page-background-002-print.html
index 240d468ce44..10bb6cab7fa 100644
--- a/tests/wpt/tests/css/css-page/page-background-002-print.html
+++ b/tests/wpt/tests/css/css-page/page-background-002-print.html
@@ -7,6 +7,9 @@
     size: 300px 50px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin-left: 100px;
     background: url(support/cat.png) no-repeat;
diff --git a/tests/wpt/tests/css/css-page/page-background-003-print.html b/tests/wpt/tests/css/css-page/page-background-003-print.html
index fbc72ecd7d7..e796400cdd1 100644
--- a/tests/wpt/tests/css/css-page/page-background-003-print.html
+++ b/tests/wpt/tests/css/css-page/page-background-003-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="http://crbug.com/351332645">
 <link rel="match" href="page-background-003-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     size: 500px 250px;
     margin: 0;
diff --git a/tests/wpt/tests/css/css-page/page-background-004-print-ref.html b/tests/wpt/tests/css/css-page/page-background-004-print-ref.html
index 0a93dfc0452..1b7ae5f7a4b 100644
--- a/tests/wpt/tests/css/css-page/page-background-004-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-background-004-print-ref.html
@@ -5,6 +5,9 @@
     size: 500px 300px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/page-background-004-print.html b/tests/wpt/tests/css/css-page/page-background-004-print.html
index dcf14565628..a700e1d32de 100644
--- a/tests/wpt/tests/css/css-page/page-background-004-print.html
+++ b/tests/wpt/tests/css/css-page/page-background-004-print.html
@@ -5,6 +5,9 @@
 <meta name="assert" content="The root element has a different background painting area and thus the background-clip property has no effect when specified on it.">
 <link rel="match" href="page-background-004-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     size: 500px 300px;
     margin: 50px;
diff --git a/tests/wpt/tests/css/css-page/page-background-005-print-ref.html b/tests/wpt/tests/css/css-page/page-background-005-print-ref.html
index c80558f2f8e..b39f9c90875 100644
--- a/tests/wpt/tests/css/css-page/page-background-005-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-background-005-print-ref.html
@@ -5,6 +5,9 @@
     size: 600px 300px;
     margin: 20px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-background-005-print.html b/tests/wpt/tests/css/css-page/page-background-005-print.html
index 9070564bdde..1b5d227fd5a 100644
--- a/tests/wpt/tests/css/css-page/page-background-005-print.html
+++ b/tests/wpt/tests/css/css-page/page-background-005-print.html
@@ -21,6 +21,9 @@
   @page content {
     background-origin: content-box;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-background-image-print-ref.html b/tests/wpt/tests/css/css-page/page-background-image-print-ref.html
index f38cc898380..44ade6ec4c0 100644
--- a/tests/wpt/tests/css/css-page/page-background-image-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-background-image-print-ref.html
@@ -1,6 +1,9 @@
 <!DOCTYPE html>
 
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   html {
     background-color: lime;
   }
diff --git a/tests/wpt/tests/css/css-page/page-background-image-print.html b/tests/wpt/tests/css/css-page/page-background-image-print.html
index 633cd4ec6c9..f9fe83a9d0c 100644
--- a/tests/wpt/tests/css/css-page/page-background-image-print.html
+++ b/tests/wpt/tests/css/css-page/page-background-image-print.html
@@ -7,6 +7,9 @@
 <link rel="match" href="page-background-image-print-ref.html">
 
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     background-image: url("/images/green.png");
     margin: 0px;
diff --git a/tests/wpt/tests/css/css-page/page-box-001-print-ref.html b/tests/wpt/tests/css/css-page/page-box-001-print-ref.html
index d9ab323877f..dc71c9ed673 100644
--- a/tests/wpt/tests/css/css-page/page-box-001-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-box-001-print-ref.html
@@ -4,6 +4,9 @@
   @page {
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 100px;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/page-box-001-print.html b/tests/wpt/tests/css/css-page/page-box-001-print.html
index 35c2f06c93b..f87dbe3ca38 100644
--- a/tests/wpt/tests/css/css-page/page-box-001-print.html
+++ b/tests/wpt/tests/css/css-page/page-box-001-print.html
@@ -7,6 +7,9 @@
     margin: 0;
     background: yellow;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 100px;
   }
diff --git a/tests/wpt/tests/css/css-page/page-box-002-print-ref.html b/tests/wpt/tests/css/css-page/page-box-002-print-ref.html
index e1ee4ab5d14..ab858280bc5 100644
--- a/tests/wpt/tests/css/css-page/page-box-002-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-box-002-print-ref.html
@@ -4,6 +4,9 @@
   @page {
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: #00f;
diff --git a/tests/wpt/tests/css/css-page/page-box-002-print.html b/tests/wpt/tests/css/css-page/page-box-002-print.html
index 3b87b6903dd..5557796a96e 100644
--- a/tests/wpt/tests/css/css-page/page-box-002-print.html
+++ b/tests/wpt/tests/css/css-page/page-box-002-print.html
@@ -3,6 +3,9 @@
 <link rel="help" href="https://drafts.csswg.org/css-page-3/#page-properties">
 <link rel="match" href="page-box-002-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   @page {
     margin: 0;
     background: #00f;
diff --git a/tests/wpt/tests/css/css-page/page-box-003-print-ref.html b/tests/wpt/tests/css/css-page/page-box-003-print-ref.html
index e1ee4ab5d14..ab858280bc5 100644
--- a/tests/wpt/tests/css/css-page/page-box-003-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-box-003-print-ref.html
@@ -4,6 +4,9 @@
   @page {
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: #00f;
diff --git a/tests/wpt/tests/css/css-page/page-box-003-print.html b/tests/wpt/tests/css/css-page/page-box-003-print.html
index 44cc13555b5..ff6c95cc54f 100644
--- a/tests/wpt/tests/css/css-page/page-box-003-print.html
+++ b/tests/wpt/tests/css/css-page/page-box-003-print.html
@@ -7,6 +7,9 @@
     margin: 0;
     background: #00f;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     background: linear-gradient(#f008, #f008);
   }
diff --git a/tests/wpt/tests/css/css-page/page-box-004-print-ref.html b/tests/wpt/tests/css/css-page/page-box-004-print-ref.html
index ab2fda9afb6..efae5d72693 100644
--- a/tests/wpt/tests/css/css-page/page-box-004-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-box-004-print-ref.html
@@ -11,6 +11,9 @@
   @page smaller {
     size: 400px 300px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-box-004-print.html b/tests/wpt/tests/css/css-page/page-box-004-print.html
index 91ea66090da..d2fd44db0a5 100644
--- a/tests/wpt/tests/css/css-page/page-box-004-print.html
+++ b/tests/wpt/tests/css/css-page/page-box-004-print.html
@@ -19,6 +19,9 @@
   @page smaller {
     size: 400px 300px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-box-005-print-ref.html b/tests/wpt/tests/css/css-page/page-box-005-print-ref.html
index 69e0061271d..f36320e247a 100644
--- a/tests/wpt/tests/css/css-page/page-box-005-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-box-005-print-ref.html
@@ -5,6 +5,9 @@
     size: 400px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-box-005-print.html b/tests/wpt/tests/css/css-page/page-box-005-print.html
index 02811b38fea..3636d878f5a 100644
--- a/tests/wpt/tests/css/css-page/page-box-005-print.html
+++ b/tests/wpt/tests/css/css-page/page-box-005-print.html
@@ -22,6 +22,9 @@
     color: black;
     background: cyan;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-box-006-print-ref.html b/tests/wpt/tests/css/css-page/page-box-006-print-ref.html
index c5081a41c48..f2806372b2a 100644
--- a/tests/wpt/tests/css/css-page/page-box-006-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-box-006-print-ref.html
@@ -5,6 +5,9 @@
     size: 400px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-box-006-print.html b/tests/wpt/tests/css/css-page/page-box-006-print.html
index eb6c2098978..208a0d6124e 100644
--- a/tests/wpt/tests/css/css-page/page-box-006-print.html
+++ b/tests/wpt/tests/css/css-page/page-box-006-print.html
@@ -11,6 +11,9 @@
   @page :first {
     background: white;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/page-box-007-print-ref.html b/tests/wpt/tests/css/css-page/page-box-007-print-ref.html
index 9f5550f8f58..68553d2d35a 100644
--- a/tests/wpt/tests/css/css-page/page-box-007-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-box-007-print-ref.html
@@ -5,6 +5,9 @@
     size: 400px 800px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-box-007-print.html b/tests/wpt/tests/css/css-page/page-box-007-print.html
index 2ed198b32ef..da8f79a9ad4 100644
--- a/tests/wpt/tests/css/css-page/page-box-007-print.html
+++ b/tests/wpt/tests/css/css-page/page-box-007-print.html
@@ -10,6 +10,9 @@
     padding: 5% 20% 15% 40%;
     background: red;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: hotpink;
diff --git a/tests/wpt/tests/css/css-page/page-box-008-print-ref.html b/tests/wpt/tests/css/css-page/page-box-008-print-ref.html
index 91ed0cec3fa..a0ec17f5c06 100644
--- a/tests/wpt/tests/css/css-page/page-box-008-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-box-008-print-ref.html
@@ -1,7 +1,8 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
-  html {
+  :root {
+    print-color-adjust: exact;
     writing-mode: vertical-rl;
   }
   @page {
diff --git a/tests/wpt/tests/css/css-page/page-box-008-print.html b/tests/wpt/tests/css/css-page/page-box-008-print.html
index c05f0e24af0..34ab16ba424 100644
--- a/tests/wpt/tests/css/css-page/page-box-008-print.html
+++ b/tests/wpt/tests/css/css-page/page-box-008-print.html
@@ -19,6 +19,9 @@
     padding-block-end: 20%;
     background: blue;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: hotpink;
diff --git a/tests/wpt/tests/css/css-page/page-box-009-print-ref.html b/tests/wpt/tests/css/css-page/page-box-009-print-ref.html
index 3c034171d3b..0c61bd205ad 100644
--- a/tests/wpt/tests/css/css-page/page-box-009-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-box-009-print-ref.html
@@ -5,6 +5,9 @@
     size: 400px 800px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-box-009-print.html b/tests/wpt/tests/css/css-page/page-box-009-print.html
index dc9ced3bdf9..6d0766f71ea 100644
--- a/tests/wpt/tests/css/css-page/page-box-009-print.html
+++ b/tests/wpt/tests/css/css-page/page-box-009-print.html
@@ -17,6 +17,9 @@
     padding-block-end: 20%;
     background: blue;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: hotpink;
diff --git a/tests/wpt/tests/css/css-page/page-box-011-print-ref.html b/tests/wpt/tests/css/css-page/page-box-011-print-ref.html
index 7a961619275..c54855df242 100644
--- a/tests/wpt/tests/css/css-page/page-box-011-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-box-011-print-ref.html
@@ -4,6 +4,9 @@
   @page {
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     box-sizing: border-box;
     height: 100vh;
diff --git a/tests/wpt/tests/css/css-page/page-box-011-print.html b/tests/wpt/tests/css/css-page/page-box-011-print.html
index d6e51736d3a..548f5e165d6 100644
--- a/tests/wpt/tests/css/css-page/page-box-011-print.html
+++ b/tests/wpt/tests/css/css-page/page-box-011-print.html
@@ -11,6 +11,9 @@
     padding: 10px;
     background: yellow;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-left-right-001-print-ref.html b/tests/wpt/tests/css/css-page/page-left-right-001-print-ref.html
index 1eb011bed8a..7544f7d254f 100644
--- a/tests/wpt/tests/css/css-page/page-left-right-001-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-left-right-001-print-ref.html
@@ -5,6 +5,9 @@
     size: 600px 300px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-left-right-001-print.html b/tests/wpt/tests/css/css-page/page-left-right-001-print.html
index 044696fcca2..6026e75cfe2 100644
--- a/tests/wpt/tests/css/css-page/page-left-right-001-print.html
+++ b/tests/wpt/tests/css/css-page/page-left-right-001-print.html
@@ -15,6 +15,9 @@
     margin-right: 500px;
     margin-top: 200px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/page-left-right-002-print-ref.html b/tests/wpt/tests/css/css-page/page-left-right-002-print-ref.html
index 3480039046a..69e377b45aa 100644
--- a/tests/wpt/tests/css/css-page/page-left-right-002-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-left-right-002-print-ref.html
@@ -5,7 +5,8 @@
     size: 600px 300px;
     margin: 0;
   }
-  html {
+  :root {
+    print-color-adjust: exact;
     direction: rtl;
   }
   body {
diff --git a/tests/wpt/tests/css/css-page/page-left-right-002-print.html b/tests/wpt/tests/css/css-page/page-left-right-002-print.html
index 59e23479e6f..02f1f513b9e 100644
--- a/tests/wpt/tests/css/css-page/page-left-right-002-print.html
+++ b/tests/wpt/tests/css/css-page/page-left-right-002-print.html
@@ -15,7 +15,8 @@
     margin-left: 500px;
     margin-top: 200px;
   }
-  html {
+  :root {
+    print-color-adjust: exact;
     direction: rtl;
   }
   body {
diff --git a/tests/wpt/tests/css/css-page/page-margin-001-print-ref.html b/tests/wpt/tests/css/css-page/page-margin-001-print-ref.html
index 12ebd76dc91..6e98f8cd9e5 100644
--- a/tests/wpt/tests/css/css-page/page-margin-001-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-margin-001-print-ref.html
@@ -4,6 +4,9 @@
   @page {
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-margin-001-print.html b/tests/wpt/tests/css/css-page/page-margin-001-print.html
index c59b3c64276..0d6c8ce95c4 100644
--- a/tests/wpt/tests/css/css-page/page-margin-001-print.html
+++ b/tests/wpt/tests/css/css-page/page-margin-001-print.html
@@ -6,6 +6,9 @@
   @page {
     margin: 10px 20px 30px 40px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-margin-002-print-ref.html b/tests/wpt/tests/css/css-page/page-margin-002-print-ref.html
index 2b565048558..d925856597a 100644
--- a/tests/wpt/tests/css/css-page/page-margin-002-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-margin-002-print-ref.html
@@ -4,7 +4,8 @@
   @page {
     margin: 0;
   }
-  html {
+  :root {
+    print-color-adjust: exact;
     writing-mode: vertical-rl;
   }
   body {
diff --git a/tests/wpt/tests/css/css-page/page-margin-002-print.html b/tests/wpt/tests/css/css-page/page-margin-002-print.html
index 944d7efcfd0..42d0f0bc147 100644
--- a/tests/wpt/tests/css/css-page/page-margin-002-print.html
+++ b/tests/wpt/tests/css/css-page/page-margin-002-print.html
@@ -6,7 +6,8 @@
   @page {
     margin: 10px 20px 30px 40px;
   }
-  html {
+  :root {
+    print-color-adjust: exact;
     writing-mode: vertical-rl;
   }
   body {
diff --git a/tests/wpt/tests/css/css-page/page-margin-003-print-ref.html b/tests/wpt/tests/css/css-page/page-margin-003-print-ref.html
index 52bf7360908..64a2482fd3b 100644
--- a/tests/wpt/tests/css/css-page/page-margin-003-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-margin-003-print-ref.html
@@ -4,7 +4,8 @@
   @page {
     margin: 0;
   }
-  html {
+  :root {
+    print-color-adjust: exact;
     writing-mode: vertical-lr;
   }
   body {
diff --git a/tests/wpt/tests/css/css-page/page-margin-003-print.html b/tests/wpt/tests/css/css-page/page-margin-003-print.html
index e7410c02e09..93c6a1dca64 100644
--- a/tests/wpt/tests/css/css-page/page-margin-003-print.html
+++ b/tests/wpt/tests/css/css-page/page-margin-003-print.html
@@ -6,7 +6,8 @@
   @page {
     margin: 10px 20px 30px 40px;
   }
-  html {
+  :root {
+    print-color-adjust: exact;
     writing-mode: vertical-lr;
   }
   body {
diff --git a/tests/wpt/tests/css/css-page/page-margin-004-print-ref.html b/tests/wpt/tests/css/css-page/page-margin-004-print-ref.html
index 24549d49542..d36d4862b3b 100644
--- a/tests/wpt/tests/css/css-page/page-margin-004-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-margin-004-print-ref.html
@@ -6,6 +6,9 @@
     size: 300px;
     margin: 10px 20px 30px 40px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-margin-004-print.html b/tests/wpt/tests/css/css-page/page-margin-004-print.html
index cb9343dcf17..c621d4063a9 100644
--- a/tests/wpt/tests/css/css-page/page-margin-004-print.html
+++ b/tests/wpt/tests/css/css-page/page-margin-004-print.html
@@ -9,6 +9,9 @@
     size: 300px;
     margin: 10px 20px 30px 40px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-margin-005-print-ref.html b/tests/wpt/tests/css/css-page/page-margin-005-print-ref.html
index bd1829be383..e710123bf6f 100644
--- a/tests/wpt/tests/css/css-page/page-margin-005-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-margin-005-print-ref.html
@@ -5,6 +5,9 @@
     size: 600px 300px;
     margin: 30px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: cyan;
diff --git a/tests/wpt/tests/css/css-page/page-margin-005-print.html b/tests/wpt/tests/css/css-page/page-margin-005-print.html
index 8ca80bc6972..3c888422eef 100644
--- a/tests/wpt/tests/css/css-page/page-margin-005-print.html
+++ b/tests/wpt/tests/css/css-page/page-margin-005-print.html
@@ -8,6 +8,9 @@
     size: 600px 300px;
     margin: 10% 5%;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: cyan;
diff --git a/tests/wpt/tests/css/css-page/page-margin-006-print-ref.html b/tests/wpt/tests/css/css-page/page-margin-006-print-ref.html
index fe7a2c66db2..09f782d056e 100644
--- a/tests/wpt/tests/css/css-page/page-margin-006-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-margin-006-print-ref.html
@@ -5,7 +5,8 @@
     size: 6in;
     margin: 0.5in;
   }
-  html {
+  :root {
+    print-color-adjust: exact;
     background: yellow;
     margin: 0.5in;
   }
diff --git a/tests/wpt/tests/css/css-page/page-margin-006-print.html b/tests/wpt/tests/css/css-page/page-margin-006-print.html
index 43621acf809..0526d058ae6 100644
--- a/tests/wpt/tests/css/css-page/page-margin-006-print.html
+++ b/tests/wpt/tests/css/css-page/page-margin-006-print.html
@@ -9,7 +9,8 @@
     margin: 13px;
     margin: inherit;
   }
-  html {
+  :root {
+    print-color-adjust: exact;
     background: yellow;
     margin: 0.5in;
   }
diff --git a/tests/wpt/tests/css/css-page/page-margin-007-print-ref.html b/tests/wpt/tests/css/css-page/page-margin-007-print-ref.html
index 20d16df19de..ea1314d5380 100644
--- a/tests/wpt/tests/css/css-page/page-margin-007-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-margin-007-print-ref.html
@@ -5,6 +5,9 @@
     size: 400px 200px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-margin-007-print.html b/tests/wpt/tests/css/css-page/page-margin-007-print.html
index c2045d0dac2..2f6432b36fb 100644
--- a/tests/wpt/tests/css/css-page/page-margin-007-print.html
+++ b/tests/wpt/tests/css/css-page/page-margin-007-print.html
@@ -13,6 +13,9 @@
   @page :left {
     margin: 50px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-margin-auto-and-non-zero-print-ref.html b/tests/wpt/tests/css/css-page/page-margin-auto-and-non-zero-print-ref.html
index 5f9be531886..bb23bbb2aff 100644
--- a/tests/wpt/tests/css/css-page/page-margin-auto-and-non-zero-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-margin-auto-and-non-zero-print-ref.html
@@ -5,6 +5,9 @@
     size: 20em 7em;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   .pagebox {
     break-before: page;
     display: flex;
diff --git a/tests/wpt/tests/css/css-page/page-margin-auto-and-non-zero-print.html b/tests/wpt/tests/css/css-page/page-margin-auto-and-non-zero-print.html
index 6287c2a1032..634bc12616f 100644
--- a/tests/wpt/tests/css/css-page/page-margin-auto-and-non-zero-print.html
+++ b/tests/wpt/tests/css/css-page/page-margin-auto-and-non-zero-print.html
@@ -27,6 +27,9 @@
     margin-bottom: auto;
     margin-right: auto;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/page-margin-auto-negative-print-ref.tentative.html b/tests/wpt/tests/css/css-page/page-margin-auto-negative-print-ref.tentative.html
index 9e816c12fb7..63a32ea9d07 100644
--- a/tests/wpt/tests/css/css-page/page-margin-auto-negative-print-ref.tentative.html
+++ b/tests/wpt/tests/css/css-page/page-margin-auto-negative-print-ref.tentative.html
@@ -5,6 +5,9 @@
     size: 300px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: green;
diff --git a/tests/wpt/tests/css/css-page/page-margin-auto-negative-print.tentative.html b/tests/wpt/tests/css/css-page/page-margin-auto-negative-print.tentative.html
index 452056a1003..64efb19bccb 100644
--- a/tests/wpt/tests/css/css-page/page-margin-auto-negative-print.tentative.html
+++ b/tests/wpt/tests/css/css-page/page-margin-auto-negative-print.tentative.html
@@ -10,6 +10,9 @@
     height: 340px;
     margin: auto;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/page-margin-auto-print-ref.html b/tests/wpt/tests/css/css-page/page-margin-auto-print-ref.html
index d7fda4ab6d9..e27de9353ff 100644
--- a/tests/wpt/tests/css/css-page/page-margin-auto-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-margin-auto-print-ref.html
@@ -5,6 +5,9 @@
     size: 20em 7em;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   .pagebox {
     break-before: page;
     display: flex;
diff --git a/tests/wpt/tests/css/css-page/page-margin-auto-print.html b/tests/wpt/tests/css/css-page/page-margin-auto-print.html
index 1c94ec4e498..14a23a31db2 100644
--- a/tests/wpt/tests/css/css-page/page-margin-auto-print.html
+++ b/tests/wpt/tests/css/css-page/page-margin-auto-print.html
@@ -28,6 +28,9 @@
     margin-bottom: 0;
     margin-right: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/page-margin-negative-print-ref.tentative.html b/tests/wpt/tests/css/css-page/page-margin-negative-print-ref.tentative.html
index 9e816c12fb7..63a32ea9d07 100644
--- a/tests/wpt/tests/css/css-page/page-margin-negative-print-ref.tentative.html
+++ b/tests/wpt/tests/css/css-page/page-margin-negative-print-ref.tentative.html
@@ -5,6 +5,9 @@
     size: 300px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: green;
diff --git a/tests/wpt/tests/css/css-page/page-margin-negative-print.tentative.html b/tests/wpt/tests/css/css-page/page-margin-negative-print.tentative.html
index 205a13f7a58..e8d48bccde5 100644
--- a/tests/wpt/tests/css/css-page/page-margin-negative-print.tentative.html
+++ b/tests/wpt/tests/css/css-page/page-margin-negative-print.tentative.html
@@ -8,6 +8,9 @@
     size: 300px;
     margin: -20px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/page-name-unnamed-trailing-001-print-ref.html b/tests/wpt/tests/css/css-page/page-name-unnamed-trailing-001-print-ref.html
index 6cb29e1c7c6..b6da8ba1aae 100644
--- a/tests/wpt/tests/css/css-page/page-name-unnamed-trailing-001-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-name-unnamed-trailing-001-print-ref.html
@@ -16,6 +16,9 @@
     margin: 20px;
     page-orientation: rotate-left;
 }
+:root {
+  print-color-adjust: exact;
+}
 body{
     margin: 0;
 }
diff --git a/tests/wpt/tests/css/css-page/page-name-unnamed-trailing-001-print.html b/tests/wpt/tests/css/css-page/page-name-unnamed-trailing-001-print.html
index 61baa23603f..7e78a9e3b21 100644
--- a/tests/wpt/tests/css/css-page/page-name-unnamed-trailing-001-print.html
+++ b/tests/wpt/tests/css/css-page/page-name-unnamed-trailing-001-print.html
@@ -16,6 +16,9 @@
     margin: 20px;
     page-orientation: rotate-left;
 }
+:root {
+  print-color-adjust: exact;
+}
 body{
     margin: 0;
 }
diff --git a/tests/wpt/tests/css/css-page/page-rule-declarations-000.html b/tests/wpt/tests/css/css-page/page-rule-declarations-000.html
index cbe53855a0a..a1a63c9f38c 100644
--- a/tests/wpt/tests/css/css-page/page-rule-declarations-000.html
+++ b/tests/wpt/tests/css/css-page/page-rule-declarations-000.html
@@ -8,6 +8,9 @@
 <script src="/resources/testharnessreport.js"></script>
 
 <style type="text/css">
+    :root {
+      print-color-adjust: exact;
+    }
 
     @page :visited { /* :visited is invalid for @page */
         color: red;
diff --git a/tests/wpt/tests/css/css-page/page-size-004-print-ref.html b/tests/wpt/tests/css/css-page/page-size-004-print-ref.html
index 0468a745b23..30a4e25ff36 100644
--- a/tests/wpt/tests/css/css-page/page-size-004-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-size-004-print-ref.html
@@ -8,6 +8,9 @@
   @page :first {
     size: 100px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-004-print.html b/tests/wpt/tests/css/css-page/page-size-004-print.html
index 125d7636d26..05fb8ba0978 100644
--- a/tests/wpt/tests/css/css-page/page-size-004-print.html
+++ b/tests/wpt/tests/css/css-page/page-size-004-print.html
@@ -10,6 +10,9 @@
   @page :first {
     size: 100px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-005-print-ref.html b/tests/wpt/tests/css/css-page/page-size-005-print-ref.html
index c2e07daa295..40127909c2b 100644
--- a/tests/wpt/tests/css/css-page/page-size-005-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-size-005-print-ref.html
@@ -8,6 +8,9 @@
   @page :first {
     size: 500px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-005-print.html b/tests/wpt/tests/css/css-page/page-size-005-print.html
index 37876ae230e..a3909f944a3 100644
--- a/tests/wpt/tests/css/css-page/page-size-005-print.html
+++ b/tests/wpt/tests/css/css-page/page-size-005-print.html
@@ -10,6 +10,9 @@
   @page :first {
     size: 500px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-007-print-ref.html b/tests/wpt/tests/css/css-page/page-size-007-print-ref.html
index 9498e2c17b2..a669ba05029 100644
--- a/tests/wpt/tests/css/css-page/page-size-007-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-size-007-print-ref.html
@@ -11,6 +11,9 @@
   @page larger {
     size: 640px 400px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-007-print.html b/tests/wpt/tests/css/css-page/page-size-007-print.html
index 50ab2f4d109..1a7b823fbfe 100644
--- a/tests/wpt/tests/css/css-page/page-size-007-print.html
+++ b/tests/wpt/tests/css/css-page/page-size-007-print.html
@@ -14,6 +14,9 @@
   @page larger {
     size: 640px 400px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-008-print-ref.html b/tests/wpt/tests/css/css-page/page-size-008-print-ref.html
index f50ad3531e4..19742482c6c 100644
--- a/tests/wpt/tests/css/css-page/page-size-008-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-size-008-print-ref.html
@@ -11,6 +11,9 @@
   @page larger {
     size: 640px 400px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-008-print.html b/tests/wpt/tests/css/css-page/page-size-008-print.html
index 683bdc3a50a..63600bf5ef7 100644
--- a/tests/wpt/tests/css/css-page/page-size-008-print.html
+++ b/tests/wpt/tests/css/css-page/page-size-008-print.html
@@ -14,6 +14,9 @@
   @page larger {
     size: 640px 400px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-009-print-ref.html b/tests/wpt/tests/css/css-page/page-size-009-print-ref.html
index 86ffa278c93..0157c5a68e7 100644
--- a/tests/wpt/tests/css/css-page/page-size-009-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-size-009-print-ref.html
@@ -8,6 +8,9 @@
   @page :first {
     size: 200px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-009-print.html b/tests/wpt/tests/css/css-page/page-size-009-print.html
index 48ead4eab38..b362ad58cdb 100644
--- a/tests/wpt/tests/css/css-page/page-size-009-print.html
+++ b/tests/wpt/tests/css/css-page/page-size-009-print.html
@@ -11,6 +11,9 @@
   @page smaller {
     size: 200px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-012-print-ref.html b/tests/wpt/tests/css/css-page/page-size-012-print-ref.html
index e85e5f07850..dd5e2288461 100644
--- a/tests/wpt/tests/css/css-page/page-size-012-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-size-012-print-ref.html
@@ -5,6 +5,9 @@
     size: 600px 400px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0; }
 </style>
 <div style="margin-left:auto; margin-right:50px; writing-mode:vertical-rl; height:400px; background:yellow;">
diff --git a/tests/wpt/tests/css/css-page/page-size-012-print.html b/tests/wpt/tests/css/css-page/page-size-012-print.html
index 737b37cbc3d..d4ddd996514 100644
--- a/tests/wpt/tests/css/css-page/page-size-012-print.html
+++ b/tests/wpt/tests/css/css-page/page-size-012-print.html
@@ -14,7 +14,8 @@
     margin-inline-start: 0;
     margin-block-start: 50px;
   }
-  html {
+  :root {
+    print-color-adjust: exact;
     writing-mode: vertical-rl;
   }
   body { margin: 0; }
diff --git a/tests/wpt/tests/css/css-page/page-size-013-print-ref.html b/tests/wpt/tests/css/css-page/page-size-013-print-ref.html
index 23c93e5c47a..3f2f3113693 100644
--- a/tests/wpt/tests/css/css-page/page-size-013-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-size-013-print-ref.html
@@ -5,6 +5,9 @@
     size: 300px 400px;
     margin: 50px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-013-print.html b/tests/wpt/tests/css/css-page/page-size-013-print.html
index 5768e2d54cb..a2fd9fe9993 100644
--- a/tests/wpt/tests/css/css-page/page-size-013-print.html
+++ b/tests/wpt/tests/css/css-page/page-size-013-print.html
@@ -10,6 +10,9 @@
     width: 200px;
     height: 300px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-014-print-ref.html b/tests/wpt/tests/css/css-page/page-size-014-print-ref.html
index 23c93e5c47a..3f2f3113693 100644
--- a/tests/wpt/tests/css/css-page/page-size-014-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-size-014-print-ref.html
@@ -5,6 +5,9 @@
     size: 300px 400px;
     margin: 50px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-014-print.html b/tests/wpt/tests/css/css-page/page-size-014-print.html
index f224bafaa87..4188e59cf61 100644
--- a/tests/wpt/tests/css/css-page/page-size-014-print.html
+++ b/tests/wpt/tests/css/css-page/page-size-014-print.html
@@ -10,6 +10,9 @@
     width: 40%;
     height: 60%;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-016-print-ref.html b/tests/wpt/tests/css/css-page/page-size-016-print-ref.html
index c9818f3af12..accd468bba8 100644
--- a/tests/wpt/tests/css/css-page/page-size-016-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-size-016-print-ref.html
@@ -5,6 +5,9 @@
     size: 7.5in 7in;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-016-print.tentative.html b/tests/wpt/tests/css/css-page/page-size-016-print.tentative.html
index 0fd12954c66..7c410a3cd28 100644
--- a/tests/wpt/tests/css/css-page/page-size-016-print.tentative.html
+++ b/tests/wpt/tests/css/css-page/page-size-016-print.tentative.html
@@ -16,6 +16,9 @@
        using viewport units. */
     size: 1234px;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/page-size-017-print-ref.html b/tests/wpt/tests/css/css-page/page-size-017-print-ref.html
index 72508e3d030..589460ef2b8 100644
--- a/tests/wpt/tests/css/css-page/page-size-017-print-ref.html
+++ b/tests/wpt/tests/css/css-page/page-size-017-print-ref.html
@@ -6,6 +6,9 @@
     size: 6in 5in;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
   }
diff --git a/tests/wpt/tests/css/css-page/page-size-017-print.tentative.html b/tests/wpt/tests/css/css-page/page-size-017-print.tentative.html
index e036e83f717..a63eac3052e 100644
--- a/tests/wpt/tests/css/css-page/page-size-017-print.tentative.html
+++ b/tests/wpt/tests/css/css-page/page-size-017-print.tentative.html
@@ -10,6 +10,9 @@
     size: 200vh 100vw; /* 6 by 5 inches */
     margin: 10vw; /* 0.5in */
   }
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     margin: 0;
     background: yellow;
diff --git a/tests/wpt/tests/css/css-page/reference/filled-green-100px-square-print-ref.html b/tests/wpt/tests/css/css-page/reference/filled-green-100px-square-print-ref.html
index d4834d1358a..52a58045776 100644
--- a/tests/wpt/tests/css/css-page/reference/filled-green-100px-square-print-ref.html
+++ b/tests/wpt/tests/css/css-page/reference/filled-green-100px-square-print-ref.html
@@ -1,4 +1,9 @@
 <!DOCTYPE html>
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
 <div style="width:100px; height:100px; background:green;"></div>
diff --git a/tests/wpt/tests/css/css-page/reference/monolithic-overflow-4-pages-print-ref.html b/tests/wpt/tests/css/css-page/reference/monolithic-overflow-4-pages-print-ref.html
index c115782d6ad..0a93575d028 100644
--- a/tests/wpt/tests/css/css-page/reference/monolithic-overflow-4-pages-print-ref.html
+++ b/tests/wpt/tests/css/css-page/reference/monolithic-overflow-4-pages-print-ref.html
@@ -2,6 +2,9 @@
 <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
 <style>
   body { margin: 0; }
+  :root {
+    print-color-adjust: exact;
+  }
 </style>
 <div style="background:yellow;">
   <div style="width:50px; height:350vh; background:hotpink;"></div>
diff --git a/tests/wpt/tests/css/css-page/resources/mq-frame-100px.html b/tests/wpt/tests/css/css-page/resources/mq-frame-100px.html
index ed823c09e89..48ee9e390a3 100644
--- a/tests/wpt/tests/css/css-page/resources/mq-frame-100px.html
+++ b/tests/wpt/tests/css/css-page/resources/mq-frame-100px.html
@@ -1,5 +1,8 @@
 <!DOCTYPE html>
 <style>
+:root {
+  print-color-adjust: exact;
+}
 body {
   margin: 0;
 }
diff --git a/tests/wpt/tests/css/css-page/root-element-display-none-print.html b/tests/wpt/tests/css/css-page/root-element-display-none-print.html
index d6802f62251..d7cc3062759 100644
--- a/tests/wpt/tests/css/css-page/root-element-display-none-print.html
+++ b/tests/wpt/tests/css/css-page/root-element-display-none-print.html
@@ -8,6 +8,9 @@
     border: solid red;
     background: hotpink;
   }
+  :root {
+    print-color-adjust: exact;
+  }
   html {
     display: none;
   }
diff --git a/tests/wpt/tests/css/css-page/subpixel-page-size-001-print.html b/tests/wpt/tests/css/css-page/subpixel-page-size-001-print.html
index 9054cd4513f..4108d9bdd28 100644
--- a/tests/wpt/tests/css/css-page/subpixel-page-size-001-print.html
+++ b/tests/wpt/tests/css/css-page/subpixel-page-size-001-print.html
@@ -9,6 +9,9 @@
     size: 400px 123.9px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
 </style>
 <div style="height:123.9px; background:red;">
   This page should not be printed.
diff --git a/tests/wpt/tests/css/css-page/subpixel-page-size-002-print.html b/tests/wpt/tests/css/css-page/subpixel-page-size-002-print.html
index 463cb21f25d..d71da40fa5e 100644
--- a/tests/wpt/tests/css/css-page/subpixel-page-size-002-print.html
+++ b/tests/wpt/tests/css/css-page/subpixel-page-size-002-print.html
@@ -9,6 +9,9 @@
     size: 400px 123.1px;
     margin: 0;
   }
+  :root {
+    print-color-adjust: exact;
+  }
 </style>
 <div style="height:123.1px; background:red;">
   This page should not be printed.
diff --git a/tests/wpt/tests/css/css-position/position-fixed-overflow-print-ref.html b/tests/wpt/tests/css/css-position/position-fixed-overflow-print-ref.html
index 0fb21d47f54..e97d667764a 100644
--- a/tests/wpt/tests/css/css-position/position-fixed-overflow-print-ref.html
+++ b/tests/wpt/tests/css/css-position/position-fixed-overflow-print-ref.html
@@ -1,6 +1,9 @@
 <!doctype html>
 <title>Test reference</title>
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0 }
 
   #outer, #inner {
diff --git a/tests/wpt/tests/css/css-position/position-fixed-overflow-print.html b/tests/wpt/tests/css/css-position/position-fixed-overflow-print.html
index cf5cf2ea530..497556bd9b9 100644
--- a/tests/wpt/tests/css/css-position/position-fixed-overflow-print.html
+++ b/tests/wpt/tests/css/css-position/position-fixed-overflow-print.html
@@ -6,6 +6,9 @@
 <link rel="help" href="https://drafts.csswg.org/css-position/#abspos-insets">
 <link rel="match" href="position-fixed-overflow-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body { margin: 0 }
 
   #outer, #inner {
diff --git a/tests/wpt/tests/css/css-position/sticky/position-sticky-offset-print.html b/tests/wpt/tests/css/css-position/sticky/position-sticky-offset-print.html
index 3954bbcf441..f74a30c7a98 100644
--- a/tests/wpt/tests/css/css-position/sticky/position-sticky-offset-print.html
+++ b/tests/wpt/tests/css/css-position/sticky/position-sticky-offset-print.html
@@ -1,6 +1,11 @@
 <!DOCTYPE html>
 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1485969">
-<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<link rel="match" href="../../reference/ref-filled-green-100px-square-print-ref.html">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
 <div id="scroller" style="position:relative; width:200px; height:100px; overflow:hidden;">
   <div style="position:absolute; width:1000px;">
diff --git a/tests/wpt/tests/css/css-properties-values-api/animation/custom-property-transition-number-percentage.html b/tests/wpt/tests/css/css-properties-values-api/animation/custom-property-transition-number-percentage.html
new file mode 100644
index 00000000000..5ec938182ee
--- /dev/null
+++ b/tests/wpt/tests/css/css-properties-values-api/animation/custom-property-transition-number-percentage.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<title>CSS Properties and Values API Test: Transitions between percentages and numbers are discrete</title>
+<link rel="help" href="https://drafts.css-houdini.org/css-properties-values-api-1/">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../resources/utils.js"></script>
+<div id="target"></div>
+<script>
+  transition_test({
+    syntax: "<number>|<percentage>",
+    from: "100",
+    to: "200%",
+    expected: "200%",
+    behavior: 'allow-discrete',
+  }, 'A custom property with <number>|<percentage> syntax should not transition between values of the different types');
+</script>
diff --git a/tests/wpt/tests/css/css-pseudo/WEB_FEATURES.yml b/tests/wpt/tests/css/css-pseudo/WEB_FEATURES.yml
index c197d348edf..780cca251d6 100644
--- a/tests/wpt/tests/css/css-pseudo/WEB_FEATURES.yml
+++ b/tests/wpt/tests/css/css-pseudo/WEB_FEATURES.yml
@@ -9,6 +9,18 @@ features:
 - name: marker
   files:
   - marker-*
+  - first-letter-exclude-block-child-marker.html
+  - first-letter-exclude-inline-child-marker.html
+  - first-letter-exclude-inline-marker.html
+  - first-letter-skip-marker.html
+  - first-line-and-marker.html
+  - outside-marker-paint-order.html
 - name: file-selector-button
   files:
   - file-selector-button-*
+- name: first-letter
+  files:
+  - first-letter-*
+- name: first-line
+  files:
+  - first-line-*
diff --git a/tests/wpt/tests/css/css-pseudo/parsing/WEB_FEATURES.yml b/tests/wpt/tests/css/css-pseudo/parsing/WEB_FEATURES.yml
new file mode 100644
index 00000000000..2a5edba05a1
--- /dev/null
+++ b/tests/wpt/tests/css/css-pseudo/parsing/WEB_FEATURES.yml
@@ -0,0 +1,4 @@
+features:
+- name: marker
+  files:
+  - marker-*
diff --git a/tests/wpt/tests/css/css-ruby/ruby-inlinize-fieldset-crash.html b/tests/wpt/tests/css/css-ruby/ruby-inlinize-fieldset-crash.html
index 5454362077c..09ad1821bad 100644
--- a/tests/wpt/tests/css/css-ruby/ruby-inlinize-fieldset-crash.html
+++ b/tests/wpt/tests/css/css-ruby/ruby-inlinize-fieldset-crash.html
@@ -6,3 +6,8 @@
 </object>
 </i>
 <rt>ô6Ì9ºÍ¶æ</ruby>
+
+<!-- The following is a testcase for a regression by the fix for the above.
+     crbug.com/406999114 -->
+<svg style="display:none" id="ref-parent"><path id="ref"></path></svg>
+<ruby><svg><use xlink:href="#ref"/></svg></ruby>
diff --git a/tests/wpt/tests/css/css-scoping/WEB_FEATURES.yml b/tests/wpt/tests/css/css-scoping/WEB_FEATURES.yml
new file mode 100644
index 00000000000..88e56feb543
--- /dev/null
+++ b/tests/wpt/tests/css/css-scoping/WEB_FEATURES.yml
@@ -0,0 +1,4 @@
+features:
+- name: has-slotted
+  files:
+  - has-slotted-*
diff --git a/tests/wpt/tests/css/css-scoping/has-slotted-001.html b/tests/wpt/tests/css/css-scoping/has-slotted-001.html
index e750d97a180..4e3de3f6adb 100644
--- a/tests/wpt/tests/css/css-scoping/has-slotted-001.html
+++ b/tests/wpt/tests/css/css-scoping/has-slotted-001.html
@@ -1,6 +1,5 @@
 <!doctype html>
 <meta charset="utf-8">
-<title>:has-slotted</title>
 <link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
 <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
 <p>Test passes if there is a filled green square.</p>
diff --git a/tests/wpt/tests/css/css-scoping/has-slotted-003.html b/tests/wpt/tests/css/css-scoping/has-slotted-003.html
index 7578413ff39..d13911e96b7 100644
--- a/tests/wpt/tests/css/css-scoping/has-slotted-003.html
+++ b/tests/wpt/tests/css/css-scoping/has-slotted-003.html
@@ -1,6 +1,5 @@
 <!doctype html>
 <meta charset="utf-8">
-<title>:has-slotted</title>
 <link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
 <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
 <p>Test passes if there is a filled green square.</p>
diff --git a/tests/wpt/tests/css/css-scoping/slotted-has-001.html b/tests/wpt/tests/css/css-scoping/slotted-has-001.html
index f70bac7eca3..dcb11ec32ea 100644
--- a/tests/wpt/tests/css/css-scoping/slotted-has-001.html
+++ b/tests/wpt/tests/css/css-scoping/slotted-has-001.html
@@ -1,6 +1,5 @@
 <!doctype html>
 <meta charset="utf-8">
-<title>:has-slotted</title>
 <link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
 <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
 <p>Test passes if there is a filled green square.</p>
diff --git a/tests/wpt/tests/css/css-scoping/slotted-has-002.html b/tests/wpt/tests/css/css-scoping/slotted-has-002.html
index 9ecbea5d413..5e709a96961 100644
--- a/tests/wpt/tests/css/css-scoping/slotted-has-002.html
+++ b/tests/wpt/tests/css/css-scoping/slotted-has-002.html
@@ -1,6 +1,5 @@
 <!doctype html>
 <meta charset="utf-8">
-<title>:has-slotted</title>
 <link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
 <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
 <p>Test passes if there is a filled green square.</p>
diff --git a/tests/wpt/tests/css/css-scoping/slotted-has-003.html b/tests/wpt/tests/css/css-scoping/slotted-has-003.html
index 1ea412492c5..548f2c5d421 100644
--- a/tests/wpt/tests/css/css-scoping/slotted-has-003.html
+++ b/tests/wpt/tests/css/css-scoping/slotted-has-003.html
@@ -1,6 +1,5 @@
 <!doctype html>
 <meta charset="utf-8">
-<title>:has-slotted</title>
 <link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
 <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
 <p>Test passes if there is a filled green square.</p>
diff --git a/tests/wpt/tests/css/css-scoping/slotted-has-004.html b/tests/wpt/tests/css/css-scoping/slotted-has-004.html
index adf50da13a9..7e76b1b6de6 100644
--- a/tests/wpt/tests/css/css-scoping/slotted-has-004.html
+++ b/tests/wpt/tests/css/css-scoping/slotted-has-004.html
@@ -1,6 +1,5 @@
 <!doctype html>
 <meta charset="utf-8">
-<title>:has-slotted</title>
 <link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
 <link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
 <p>Test passes if there is a filled green square.</p>
diff --git a/tests/wpt/tests/css/css-scrollbars/WEB_FEATURES.yml b/tests/wpt/tests/css/css-scrollbars/WEB_FEATURES.yml
new file mode 100644
index 00000000000..e3040abd869
--- /dev/null
+++ b/tests/wpt/tests/css/css-scrollbars/WEB_FEATURES.yml
@@ -0,0 +1,13 @@
+features:
+- name: scrollbar-color
+  files:
+  - input-scrollbar-color.html
+  - scrollbar-color-*
+  - scrollbar-width-paint-003.html
+  - transparent-on-root.html
+  - viewport-scrollbar-body.html
+  - viewport-scrollbar.html
+- name: scrollbar-width
+  files:
+  - scrollbar-width-*
+  - textarea-scrollbar-width-none.html
diff --git a/tests/wpt/tests/css/css-shapes/parsing/shape-outside-computed.html b/tests/wpt/tests/css/css-shapes/parsing/shape-outside-computed.html
index 19d69ee7388..97ac87e1e61 100644
--- a/tests/wpt/tests/css/css-shapes/parsing/shape-outside-computed.html
+++ b/tests/wpt/tests/css/css-shapes/parsing/shape-outside-computed.html
@@ -15,7 +15,9 @@
     font-size: 40px;
   }
 </style>
-<div id="target"></div>
+<div>
+  <div id="target"></div>
+</div>
 <script>
 // TODO: Add inset() tests
 
@@ -23,14 +25,16 @@ test_computed_value("shape-outside", "circle(at 10% 20%)");
 test_computed_value("shape-outside", "circle(at calc(75% + 0px) calc(75% + 0px))", "circle(at 75% 75%)");
 test_computed_value("shape-outside", "circle(calc(10px + 0.5em) at -50% 50%) border-box", "circle(30px at -50% 50%) border-box");
 test_computed_value("shape-outside", "circle(calc(10px - 0.5em) at 50% -50%) border-box", "circle(0px at 50% -50%) border-box");
+test_computed_value("shape-outside", "circle(at top 0% right calc(10% * sign(1em - 1px)))", "circle(at 90% 0%)");
+test_computed_value("shape-outside", "circle(at top 0% right calc(10% * sibling-index()))", "circle(at 90% 0%)");
 
 test_computed_value("shape-outside", "ellipse(60% closest-side at 50% 50%)");
 test_computed_value("shape-outside", "ellipse(calc(10px + 0.5em) calc(10px - 0.5em) at -50% 50%) padding-box", "ellipse(30px 0px at -50% 50%) padding-box");
 test_computed_value("shape-outside", "ellipse(calc(10px - 0.5em) calc(10px + 0.5em) at 50% -50%) border-box", "ellipse(0px 30px at 50% -50%) border-box");
 
-test_computed_value("polygon(evenodd, -10px, -20px, -30px, -40px, -50px, -60px) margin-box");
-test_computed_value("polygon(10%, 20%, 30%, 40%, 50%, 60%) content-box");
-test_computed_value("polygon(calc(10px - 0.5em), 20%, 30%, 40%, 50%, calc(10px - 0.5em))", "polygon(-10px, 20%, 30%, 40%, 50%, -10px)");
+test_computed_value("shape-outside", "polygon(evenodd, -10px, -20px, -30px, -40px, -50px, -60px) margin-box");
+test_computed_value("shape-outside", "polygon(10%, 20%, 30%, 40%, 50%, 60%) content-box");
+test_computed_value("shape-outside", "polygon(calc(10px - 0.5em), 20%, 30%, 40%, 50%, calc(10px - 0.5em))", "polygon(-10px, 20%, 30%, 40%, 50%, -10px)");
 </script>
 </body>
 </html>
diff --git a/tests/wpt/tests/css/css-shapes/parsing/shape-outside-valid-position.html b/tests/wpt/tests/css/css-shapes/parsing/shape-outside-valid-position.html
index 07b82ddda64..5a23d4f5986 100644
--- a/tests/wpt/tests/css/css-shapes/parsing/shape-outside-valid-position.html
+++ b/tests/wpt/tests/css/css-shapes/parsing/shape-outside-valid-position.html
@@ -31,6 +31,8 @@ test_valid_value("shape-outside", "circle(at right 40%)", "circle(at 100% 40%)")
 test_valid_value("shape-outside", "circle(at right 30% top 60px)", "circle(at calc(70%) 60px)");
 test_valid_value("shape-outside", "circle(at top)", "circle(at 50% 0%)");
 test_valid_value("shape-outside", "circle(at top center)","circle(at 50% 0%)");
+test_valid_value("shape-outside", "circle(at top 0% right calc(10% * sign(1em - 1px)))", "circle(at calc(100% - (10% * sign(1em - 1px))) 0%)");
+test_valid_value("shape-outside", "circle(at top 0% right calc(10% * sibling-index()))", "circle(at calc(100% - (10% * sibling-index())) 0%)");
 </script>
 </body>
 </html>
diff --git a/tests/wpt/tests/css/css-text/parsing/WEB_FEATURES.yml b/tests/wpt/tests/css/css-text/parsing/WEB_FEATURES.yml
index 8fa38638f17..b8da9745265 100644
--- a/tests/wpt/tests/css/css-text/parsing/WEB_FEATURES.yml
+++ b/tests/wpt/tests/css/css-text/parsing/WEB_FEATURES.yml
@@ -13,6 +13,10 @@ features:
   - white-space-collapse-*
 - name: text-wrap
   files:
+  # No wildcard here to avoid capturing text-wrap-mode-*.
   - text-wrap-computed.html
   - text-wrap-invalid.html
-  - text-wrap-pretty.html
+  - text-wrap-valid.html
+- name: text-wrap-mode
+  files:
+  - text-wrap-mode-*
diff --git a/tests/wpt/tests/css/css-text/text-autospace/text-autospace-break-001.html b/tests/wpt/tests/css/css-text/text-autospace/text-autospace-break-001.html
index fd843bc6636..6e540d8f1e1 100644
--- a/tests/wpt/tests/css/css-text/text-autospace/text-autospace-break-001.html
+++ b/tests/wpt/tests/css/css-text/text-autospace/text-autospace-break-001.html
@@ -7,7 +7,7 @@
 .test-container {
   font-family: Ahem;
   font-size: 40px;
-  width: 4em;
+  width: 4.1em;
   text-autospace: normal;
 }
 .test > span {
diff --git a/tests/wpt/tests/css/css-transforms/group/svg-transform-nested-019.html b/tests/wpt/tests/css/css-transforms/group/svg-transform-nested-019.html
index 4bb658d2f9c..319c2e28631 100644
--- a/tests/wpt/tests/css/css-transforms/group/svg-transform-nested-019.html
+++ b/tests/wpt/tests/css/css-transforms/group/svg-transform-nested-019.html
@@ -6,7 +6,7 @@
     <link rel="help" href="http://www.w3.org/TR/css-transforms-1/#svg-transform">
     <link rel="help" href="http://www.w3.org/TR/css-transforms-1/#two-d-transform-functions">
     <link rel="match" href="reference/svg-green-square-250x250-ref.html">
-    <meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-299">
+    <meta name="fuzzy" content="maxDifference=0-2;totalPixels=0-400">
     <meta name="flags" content="svg">
     <meta name="assert" content="Transforms on a parent element should be pre-multiplied to transforms on a child element.  The group of elements should be skewed vertically.  Additionally, the child rect should be translated.">
     <style type="text/css">
diff --git a/tests/wpt/tests/css/css-typed-om/background-image-gradient-ref.html b/tests/wpt/tests/css/css-typed-om/background-image-gradient-ref.html
new file mode 100644
index 00000000000..588b934c7e8
--- /dev/null
+++ b/tests/wpt/tests/css/css-typed-om/background-image-gradient-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<style>
+  div {
+    width: 100px;
+    height: 100px;
+    background-color: green;
+  }
+</style>
+<div id="target">
+</div>
+<p>
+  There should be a green rect above.
+</p>
diff --git a/tests/wpt/tests/css/css-typed-om/background-image-gradient.html b/tests/wpt/tests/css/css-typed-om/background-image-gradient.html
new file mode 100644
index 00000000000..00d7de91fb8
--- /dev/null
+++ b/tests/wpt/tests/css/css-typed-om/background-image-gradient.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<title>Set gradient to background-image</title>
+<link rel="help" href="https://drafts.css-houdini.org/css-typed-om/#the-stylepropertymap">
+<link rel="author" title="CGQAQ" href="mailto:cgqaq@chromium.org">
+<link rel="match" href="background-image-gradient-ref.html">
+<meta name="assert" content="Should show as green rect.">
+<style>
+  div {
+    width: 100px;
+    height: 100px;
+  }
+</style>
+<div id="target">
+</div>
+<script>
+  target.attributeStyleMap.set('background-image', 'linear-gradient(green, green)');
+  target.attributeStyleMap.set('background-color', 'red');
+</script>
+<p>
+  There should be a green rect above.
+</p>
diff --git a/tests/wpt/tests/css/css-ui/appearance-auto-001.html b/tests/wpt/tests/css/css-ui/appearance-auto-001.html
index deef1c5d0b5..60f90c58736 100644
--- a/tests/wpt/tests/css/css-ui/appearance-auto-001.html
+++ b/tests/wpt/tests/css/css-ui/appearance-auto-001.html
@@ -3,6 +3,7 @@
 <title>CSS Basic User Interface Test: appearance: auto</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="auto is supported.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/appearance-button-001.html b/tests/wpt/tests/css/css-ui/appearance-button-001.html
index 317f56b18ae..92e24c69113 100644
--- a/tests/wpt/tests/css/css-ui/appearance-button-001.html
+++ b/tests/wpt/tests/css/css-ui/appearance-button-001.html
@@ -3,6 +3,7 @@
 <title>CSS Basic User Interface Test: appearance: button</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="button is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/appearance-checkbox-001.html b/tests/wpt/tests/css/css-ui/appearance-checkbox-001.html
index 54ebef94f24..69df5739d79 100644
--- a/tests/wpt/tests/css/css-ui/appearance-checkbox-001.html
+++ b/tests/wpt/tests/css/css-ui/appearance-checkbox-001.html
@@ -3,6 +3,7 @@
 <title>CSS Basic User Interface Test: appearance: checkbox</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="checkbox is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/appearance-listbox-001.html b/tests/wpt/tests/css/css-ui/appearance-listbox-001.html
index b391754b749..dd5b0018889 100644
--- a/tests/wpt/tests/css/css-ui/appearance-listbox-001.html
+++ b/tests/wpt/tests/css/css-ui/appearance-listbox-001.html
@@ -3,6 +3,7 @@
 <title>CSS Basic User Interface Test: appearance: listbox</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="listbox is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/appearance-menulist-001.html b/tests/wpt/tests/css/css-ui/appearance-menulist-001.html
index b4586870e3d..40892b14b7b 100644
--- a/tests/wpt/tests/css/css-ui/appearance-menulist-001.html
+++ b/tests/wpt/tests/css/css-ui/appearance-menulist-001.html
@@ -3,6 +3,7 @@
 <title>CSS Basic User Interface Test: appearance: menulist</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="menulist is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/appearance-menulist-button-001.html b/tests/wpt/tests/css/css-ui/appearance-menulist-button-001.html
index a170eb31264..3f9cc6b6a56 100644
--- a/tests/wpt/tests/css/css-ui/appearance-menulist-button-001.html
+++ b/tests/wpt/tests/css/css-ui/appearance-menulist-button-001.html
@@ -3,6 +3,7 @@
 <title>CSS Basic User Interface Test: appearance: menulist-button</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="menulist-button is an alias to auto except on drop-down select.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/appearance-meter-001.html b/tests/wpt/tests/css/css-ui/appearance-meter-001.html
index da6f1ffa6ca..bdcf886a0fa 100644
--- a/tests/wpt/tests/css/css-ui/appearance-meter-001.html
+++ b/tests/wpt/tests/css/css-ui/appearance-meter-001.html
@@ -3,6 +3,7 @@
 <title>CSS Basic User Interface Test: appearance: meter</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="meter is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/appearance-progress-bar-001.html b/tests/wpt/tests/css/css-ui/appearance-progress-bar-001.html
index 1573f699115..3d1d626ea78 100644
--- a/tests/wpt/tests/css/css-ui/appearance-progress-bar-001.html
+++ b/tests/wpt/tests/css/css-ui/appearance-progress-bar-001.html
@@ -3,6 +3,7 @@
 <title>CSS Basic User Interface Test: appearance: progress-bar</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="progress-bar is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/appearance-radio-001.html b/tests/wpt/tests/css/css-ui/appearance-radio-001.html
index 5a64ba7b013..bf6f103191c 100644
--- a/tests/wpt/tests/css/css-ui/appearance-radio-001.html
+++ b/tests/wpt/tests/css/css-ui/appearance-radio-001.html
@@ -3,6 +3,7 @@
 <title>CSS Basic User Interface Test: appearance: radio</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="radio is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/appearance-searchfield-001.html b/tests/wpt/tests/css/css-ui/appearance-searchfield-001.html
index 78741411551..9ed4110ee03 100644
--- a/tests/wpt/tests/css/css-ui/appearance-searchfield-001.html
+++ b/tests/wpt/tests/css/css-ui/appearance-searchfield-001.html
@@ -3,6 +3,7 @@
 <title>CSS Basic User Interface Test: appearance: searchfield</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="searchfield is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/appearance-textarea-001.html b/tests/wpt/tests/css/css-ui/appearance-textarea-001.html
index 5c55ff9fbf6..890f2b20f9a 100644
--- a/tests/wpt/tests/css/css-ui/appearance-textarea-001.html
+++ b/tests/wpt/tests/css/css-ui/appearance-textarea-001.html
@@ -3,6 +3,7 @@
 <title>CSS Basic User Interface Test: appearance: textarea</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="textarea is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/interactivity-inert-all.tentative.html b/tests/wpt/tests/css/css-ui/interactivity-inert-all.tentative.html
new file mode 100644
index 00000000000..e0bfe76db64
--- /dev/null
+++ b/tests/wpt/tests/css/css-ui/interactivity-inert-all.tentative.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<title>CSS UI Test: The 'all' shorthand does not include 'interactivity'</title>
+<link rel="help" href="https://drafts.csswg.org/css-ui-4/#inertness">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/12049">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  #inert {
+    interactivity: inert;
+  }
+  #child {
+    all: initial;
+  }
+</style>
+<div id="inert">
+  <span id="child"></span>
+</div>
+<script>
+  test(() => {
+    assert_equals(getComputedStyle(child).interactivity, "inert");
+  }, "The 'all' shorthand should not set 'interactivity'");
+</script>
diff --git a/tests/wpt/tests/css/css-ui/webkit-appearance-auto-001.html b/tests/wpt/tests/css/css-ui/webkit-appearance-auto-001.html
index fb0261b020f..df73cba1334 100644
--- a/tests/wpt/tests/css/css-ui/webkit-appearance-auto-001.html
+++ b/tests/wpt/tests/css/css-ui/webkit-appearance-auto-001.html
@@ -7,6 +7,7 @@ Edit the appearance-* file instead and then run:
 <title>CSS Basic User Interface Test: -webkit-appearance: auto</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="auto is supported.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/webkit-appearance-button-001.html b/tests/wpt/tests/css/css-ui/webkit-appearance-button-001.html
index cf36b42384a..ac30091901a 100644
--- a/tests/wpt/tests/css/css-ui/webkit-appearance-button-001.html
+++ b/tests/wpt/tests/css/css-ui/webkit-appearance-button-001.html
@@ -7,6 +7,7 @@ Edit the appearance-* file instead and then run:
 <title>CSS Basic User Interface Test: -webkit-appearance: button</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="button is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/webkit-appearance-checkbox-001.html b/tests/wpt/tests/css/css-ui/webkit-appearance-checkbox-001.html
index 09dd3d76cd6..a0dea650255 100644
--- a/tests/wpt/tests/css/css-ui/webkit-appearance-checkbox-001.html
+++ b/tests/wpt/tests/css/css-ui/webkit-appearance-checkbox-001.html
@@ -7,6 +7,7 @@ Edit the appearance-* file instead and then run:
 <title>CSS Basic User Interface Test: -webkit-appearance: checkbox</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="checkbox is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/webkit-appearance-listbox-001.html b/tests/wpt/tests/css/css-ui/webkit-appearance-listbox-001.html
index 2a33758e2b5..189286b8c71 100644
--- a/tests/wpt/tests/css/css-ui/webkit-appearance-listbox-001.html
+++ b/tests/wpt/tests/css/css-ui/webkit-appearance-listbox-001.html
@@ -7,6 +7,7 @@ Edit the appearance-* file instead and then run:
 <title>CSS Basic User Interface Test: -webkit-appearance: listbox</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="listbox is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/webkit-appearance-menulist-001.html b/tests/wpt/tests/css/css-ui/webkit-appearance-menulist-001.html
index b9826c4bd27..c5dac6920ff 100644
--- a/tests/wpt/tests/css/css-ui/webkit-appearance-menulist-001.html
+++ b/tests/wpt/tests/css/css-ui/webkit-appearance-menulist-001.html
@@ -7,6 +7,7 @@ Edit the appearance-* file instead and then run:
 <title>CSS Basic User Interface Test: -webkit-appearance: menulist</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="menulist is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/webkit-appearance-menulist-button-001.html b/tests/wpt/tests/css/css-ui/webkit-appearance-menulist-button-001.html
index ba4016a495a..78d41248ed5 100644
--- a/tests/wpt/tests/css/css-ui/webkit-appearance-menulist-button-001.html
+++ b/tests/wpt/tests/css/css-ui/webkit-appearance-menulist-button-001.html
@@ -7,6 +7,7 @@ Edit the appearance-* file instead and then run:
 <title>CSS Basic User Interface Test: -webkit-appearance: menulist-button</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="menulist-button is an alias to auto except on drop-down select.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/webkit-appearance-meter-001.html b/tests/wpt/tests/css/css-ui/webkit-appearance-meter-001.html
index 05fb5ce25f2..496024d0505 100644
--- a/tests/wpt/tests/css/css-ui/webkit-appearance-meter-001.html
+++ b/tests/wpt/tests/css/css-ui/webkit-appearance-meter-001.html
@@ -7,6 +7,7 @@ Edit the appearance-* file instead and then run:
 <title>CSS Basic User Interface Test: -webkit-appearance: meter</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="meter is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/webkit-appearance-progress-bar-001.html b/tests/wpt/tests/css/css-ui/webkit-appearance-progress-bar-001.html
index b989502902d..47db33234da 100644
--- a/tests/wpt/tests/css/css-ui/webkit-appearance-progress-bar-001.html
+++ b/tests/wpt/tests/css/css-ui/webkit-appearance-progress-bar-001.html
@@ -7,6 +7,7 @@ Edit the appearance-* file instead and then run:
 <title>CSS Basic User Interface Test: -webkit-appearance: progress-bar</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="progress-bar is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/webkit-appearance-radio-001.html b/tests/wpt/tests/css/css-ui/webkit-appearance-radio-001.html
index 52d9fb22ac1..e10de4aca62 100644
--- a/tests/wpt/tests/css/css-ui/webkit-appearance-radio-001.html
+++ b/tests/wpt/tests/css/css-ui/webkit-appearance-radio-001.html
@@ -7,6 +7,7 @@ Edit the appearance-* file instead and then run:
 <title>CSS Basic User Interface Test: -webkit-appearance: radio</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="radio is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/webkit-appearance-searchfield-001.html b/tests/wpt/tests/css/css-ui/webkit-appearance-searchfield-001.html
index 8abd91e3c8f..af56298d4e4 100644
--- a/tests/wpt/tests/css/css-ui/webkit-appearance-searchfield-001.html
+++ b/tests/wpt/tests/css/css-ui/webkit-appearance-searchfield-001.html
@@ -7,6 +7,7 @@ Edit the appearance-* file instead and then run:
 <title>CSS Basic User Interface Test: -webkit-appearance: searchfield</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="searchfield is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-ui/webkit-appearance-textarea-001.html b/tests/wpt/tests/css/css-ui/webkit-appearance-textarea-001.html
index cf3a15f4db6..eba4d3044be 100644
--- a/tests/wpt/tests/css/css-ui/webkit-appearance-textarea-001.html
+++ b/tests/wpt/tests/css/css-ui/webkit-appearance-textarea-001.html
@@ -7,6 +7,7 @@ Edit the appearance-* file instead and then run:
 <title>CSS Basic User Interface Test: -webkit-appearance: textarea</title>
 <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching">
 <meta name="assert" content="textarea is an alias to auto.">
+<meta name="fuzzy" content="totalPixels=0-2;maxDifference=0-1">
 <link rel="match" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
diff --git a/tests/wpt/tests/css/css-values/calc-size/calc-size-no-body-height-quirk-001-ref.html b/tests/wpt/tests/css/css-values/calc-size/calc-size-no-body-height-quirk-001-ref.html
new file mode 100644
index 00000000000..0c0d6b3607b
--- /dev/null
+++ b/tests/wpt/tests/css/css-values/calc-size/calc-size-no-body-height-quirk-001-ref.html
@@ -0,0 +1,11 @@
+<!-- This test is intentionally in quirks mode. -->
+<title>calc-size() and the body fills html quirk</title>
+<style>
+
+div {
+  border: medium solid;
+}
+
+</style>
+
+<div>The bottom border of this box should be close to the text, not at the bottom of the viewport.</div>
diff --git a/tests/wpt/tests/css/css-values/calc-size/calc-size-no-body-height-quirk-001.html b/tests/wpt/tests/css/css-values/calc-size/calc-size-no-body-height-quirk-001.html
new file mode 100644
index 00000000000..70a2670ab87
--- /dev/null
+++ b/tests/wpt/tests/css/css-values/calc-size/calc-size-no-body-height-quirk-001.html
@@ -0,0 +1,15 @@
+<!-- This test is intentionally in quirks mode. -->
+<title>calc-size() and the body fills html quirk</title>
+<link rel="help" href="https://drafts.csswg.org/css-values-5/#calc-size">
+<link rel="help" href="https://quirks.spec.whatwg.org/#the-body-element-fills-the-html-element-quirk">
+<link rel="match" href="calc-size-no-body-height-quirk-001-ref.html">
+<style>
+
+body {
+  height: calc-size(auto, size);
+  border: medium solid;
+}
+
+</style>
+
+<body>The bottom border of this box should be close to the text, not at the bottom of the viewport.</body>
diff --git a/tests/wpt/tests/css/css-values/calc-size/calc-size-svg-001-crash.html b/tests/wpt/tests/css/css-values/calc-size/calc-size-svg-001-crash.html
new file mode 100644
index 00000000000..ec1e09a4315
--- /dev/null
+++ b/tests/wpt/tests/css/css-values/calc-size/calc-size-svg-001-crash.html
@@ -0,0 +1,10 @@
+<!DOCTYPE HTML>
+<style>
+
+image {
+  height: calc-size(auto, size * 0.5);
+}
+
+</style>
+
+<svg><image></image></svg>
diff --git a/tests/wpt/tests/css/css-view-transitions/capture-with-offscreen-child-translated.html b/tests/wpt/tests/css/css-view-transitions/capture-with-offscreen-child-translated.html
index 925bb8dbc45..d7f4f2b122a 100644
--- a/tests/wpt/tests/css/css-view-transitions/capture-with-offscreen-child-translated.html
+++ b/tests/wpt/tests/css/css-view-transitions/capture-with-offscreen-child-translated.html
@@ -30,6 +30,17 @@
   visibility: hidden;
   animation-duration: 500s;
 }
+
+::view-transtion-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+::view-transtion-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
 ::view-transition {
   background: pink;
 }
diff --git a/tests/wpt/tests/css/css-view-transitions/capture-with-offscreen-child.html b/tests/wpt/tests/css/css-view-transitions/capture-with-offscreen-child.html
index 7f8085cae2d..576c1a0a4ad 100644
--- a/tests/wpt/tests/css/css-view-transitions/capture-with-offscreen-child.html
+++ b/tests/wpt/tests/css/css-view-transitions/capture-with-offscreen-child.html
@@ -26,6 +26,22 @@
   visibility: hidden;
   animation-duration: 500s;
 }
+
+::view-transtion-group(*),
+::view-transtion-image-pair(*) {
+  animation-play-state: paused;
+}
+
+::view-transition-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+::view-transition-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
 ::view-transition {
   background: pink;
 }
@@ -44,4 +60,5 @@ function runTest() {
 }
 
 onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
+
 </script>
diff --git a/tests/wpt/tests/css/css-view-transitions/capture-with-opacity-zero-child.html b/tests/wpt/tests/css/css-view-transitions/capture-with-opacity-zero-child.html
index 2b0563ea31b..78bd49f24a2 100644
--- a/tests/wpt/tests/css/css-view-transitions/capture-with-opacity-zero-child.html
+++ b/tests/wpt/tests/css/css-view-transitions/capture-with-opacity-zero-child.html
@@ -24,6 +24,22 @@
   visibility: hidden;
   animation-duration: 500s;
 }
+
+::view-transtion-group(*),
+::view-transtion-image-pair(*) {
+  animation-play-state: paused;
+}
+
+::view-transition-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+::view-transition-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
 ::view-transition {
   background: pink;
 }
diff --git a/tests/wpt/tests/css/css-view-transitions/capture-with-visibility-hidden-child.html b/tests/wpt/tests/css/css-view-transitions/capture-with-visibility-hidden-child.html
index 2d176124996..ba49933390f 100644
--- a/tests/wpt/tests/css/css-view-transitions/capture-with-visibility-hidden-child.html
+++ b/tests/wpt/tests/css/css-view-transitions/capture-with-visibility-hidden-child.html
@@ -23,6 +23,23 @@
   visibility: hidden;
   animation-duration: 500s;
 }
+
+::view-transtion-group(*),
+::view-transtion-image-pair(*) {
+  animation-play-state: paused;
+}
+
+::view-transition-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+::view-transition-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
+
 ::view-transition {
   background: pink;
 }
diff --git a/tests/wpt/tests/css/css-view-transitions/capture-with-visibility-mixed-descendants.html b/tests/wpt/tests/css/css-view-transitions/capture-with-visibility-mixed-descendants.html
index 3a4811ada10..45776052491 100644
--- a/tests/wpt/tests/css/css-view-transitions/capture-with-visibility-mixed-descendants.html
+++ b/tests/wpt/tests/css/css-view-transitions/capture-with-visibility-mixed-descendants.html
@@ -34,6 +34,22 @@
   visibility: hidden;
   animation-duration: 500s;
 }
+
+::view-transtion-group(*),
+::view-transtion-image-pair(*) {
+  animation-play-state: paused;
+}
+
+::view-transition-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+::view-transition-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
 ::view-transition {
   background: pink;
 }
diff --git a/tests/wpt/tests/css/css-view-transitions/inline-with-offset-from-containing-block.html b/tests/wpt/tests/css/css-view-transitions/inline-with-offset-from-containing-block.html
index 6bbb8b49392..31f8449ff63 100644
--- a/tests/wpt/tests/css/css-view-transitions/inline-with-offset-from-containing-block.html
+++ b/tests/wpt/tests/css/css-view-transitions/inline-with-offset-from-containing-block.html
@@ -31,6 +31,12 @@
     margin: -10px 0 0 -10px;
     animation-play-state: paused;
   }
+  html::view-transition-image-pair(text),
+  html::view-transition-old(text),
+  html::view-transition-new(text) {
+    animation-play-state: paused;
+  }
+
 </style>
 
 <div class="outer">
diff --git a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-ident.html b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-ident.html
index 9cfc3f12ce8..51705ccdeac 100644
--- a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-ident.html
+++ b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-ident.html
@@ -20,7 +20,10 @@ div {
   view-transition-class: cls;
 }
 
-::view-transition-group(*) {
+::view-transition-group(*),
+::view-transition-image-pair(*),
+::view-transition-old(*),
+::view-transition-new(*) {
   animation-play-state: paused;
 }
 
diff --git a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-multiple-wildcard.html b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-multiple-wildcard.html
index 261c00f0875..c0f077a4250 100644
--- a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-multiple-wildcard.html
+++ b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-multiple-wildcard.html
@@ -20,7 +20,10 @@ div {
   view-transition-class: cls some-div;
 }
 
-::view-transition-group(*) {
+::view-transition-group(*),
+::view-transition-image-pair(*),
+::view-transition-old(*),
+::view-transition-new(*) {
   animation-play-state: paused;
 }
 
diff --git a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-multiple.html b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-multiple.html
index 7ff42edf366..f5c060c2095 100644
--- a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-multiple.html
+++ b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-multiple.html
@@ -20,7 +20,10 @@ div {
   view-transition-name: target;
 }
 
-::view-transition-group(*) {
+::view-transition-group(*),
+::view-transition-image-pair(*),
+::view-transition-old(*),
+::view-transition-new(*) {
   animation-play-state: paused;
 }
 
diff --git a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-wildcard-no-star.html b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-wildcard-no-star.html
index 96186cd8784..123168310b8 100644
--- a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-wildcard-no-star.html
+++ b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-wildcard-no-star.html
@@ -28,6 +28,17 @@
   ::view-transition-old(.cls) {
     left: 100px;
   }
+
+::view-transition-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+::view-transition-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
 </style>
 <div id=target></div>
 
diff --git a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-wildcard.html b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-wildcard.html
index f777e245ba6..11bdcbc12cb 100644
--- a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-wildcard.html
+++ b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-match-wildcard.html
@@ -20,7 +20,10 @@ div {
   view-transition-class: cls;
 }
 
-::view-transition-group(*) {
+::view-transition-group(*),
+::view-transition-image-pair(*),
+::view-transition-old(*),
+::view-transition-new(*) {
   animation-play-state: paused;
 }
 
diff --git a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-multiple-vt-classes.html b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-multiple-vt-classes.html
index fa7ae4eeb15..c28d6f90dfe 100644
--- a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-multiple-vt-classes.html
+++ b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-multiple-vt-classes.html
@@ -20,7 +20,10 @@ div {
   view-transition-name: target;
 }
 
-::view-transition-group(*) {
+::view-transition-group(*),
+::view-transition-image-pair(*),
+::view-transition-old(*),
+::view-transition-new(*) {
   animation-play-state: paused;
 }
 
diff --git a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-view-transition-image-pair.html b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-view-transition-image-pair.html
index 0473742260c..5cc971b9446 100644
--- a/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-view-transition-image-pair.html
+++ b/tests/wpt/tests/css/css-view-transitions/pseudo-with-classes-view-transition-image-pair.html
@@ -23,8 +23,20 @@
 
 ::view-transition-image-pair(target.cls) {
   transform: translateX(100px);
+  animation-play-state: paused;
 }
 
+::view-transition-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+::view-transition-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
+
 </style>
 <div id=target></div>
 
diff --git a/tests/wpt/tests/css/css-view-transitions/rotated-cat-off-top-edge.html b/tests/wpt/tests/css/css-view-transitions/rotated-cat-off-top-edge.html
index f61b916caa5..34979361429 100644
--- a/tests/wpt/tests/css/css-view-transitions/rotated-cat-off-top-edge.html
+++ b/tests/wpt/tests/css/css-view-transitions/rotated-cat-off-top-edge.html
@@ -16,7 +16,19 @@
 }
 ::view-transition-group(root) {
   animation-duration: 500s;
+  animation-play-state: paused;
 }
+
+::view-transition-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+::view-transition-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
 </style>
 <body>
 <img class="target" src="support/cat.png">
diff --git a/tests/wpt/tests/css/css-view-transitions/scoped/content-ref.html b/tests/wpt/tests/css/css-view-transitions/scoped/content-ref.html
new file mode 100644
index 00000000000..1216fdfa850
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/scoped/content-ref.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html>
+<head>
+<style>
+
+body { margin: 20px }
+#scope {
+  position: relative; z-index: 0; background: pink;
+  border: 5px dashed purple; padding: 5px;
+  width: 180px; height: 120px;
+}
+#part {
+  position: relative; z-index: 0; background: lightgrey;
+  border: 5px solid blue; padding: 5px;
+  width: 120px; height: 60px;
+  left: 20px; top: 20px;
+  view-transition-name: foo;
+}
+
+#scope-client-area {
+  position: absolute; inset: 0; padding: 5px;
+  background: yellow;
+}
+
+</style>
+</head>
+<body>
+<div id=scope>
+  <div id=scope-client-area>
+    <div id=part>
+      PARTICIPANT
+    </div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-view-transitions/scoped/new-content.html b/tests/wpt/tests/css/css-view-transitions/scoped/new-content.html
new file mode 100644
index 00000000000..7302f7c4f8e
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/scoped/new-content.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html class=reftest-wait>
+<head>
+<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
+<link rel="match" href="content-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<script src="/web-animations/testcommon.js"></script>
+<style>
+
+body { margin: 20px }
+#scope {
+  position: relative; z-index: 0; background: pink;
+  border: 5px dashed purple; padding: 5px;
+  width: 180px; height: 120px;
+}
+#part {
+  position: relative; z-index: 0; background: lightgrey;
+  border: 5px solid blue; padding: 5px;
+  width: 120px; height: 60px;
+  left: 20px; top: 20px;
+  view-transition-name: foo;
+}
+
+/* TODO(crbug.com/405117185): This shouldn't be necessary. */
+:root { view-transition-name: none; }
+
+#scope::view-transition { background: yellow; }
+#scope::view-transition-group(foo) { animation-play-state: paused; }
+#scope::view-transition-new(foo) { animation: unset; opacity: 1; }
+#scope::view-transition-old(foo) { animation: unset; opacity: 0; }
+
+</style>
+</head>
+<body>
+<div id=scope>
+  <div id=part>
+    PARTICIPANT
+  </div>
+</div>
+<script>
+
+const scope = document.querySelector("#scope");
+failIfNot(scope.startViewTransition, "Missing element.startViewTransition");
+
+async function runTest() {
+  await waitForCompositorReady();
+  scope.startViewTransition(() => requestAnimationFrame(takeScreenshot));
+}
+onload = () => runTest();
+
+</script>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-view-transitions/scoped/old-content.html b/tests/wpt/tests/css/css-view-transitions/scoped/old-content.html
new file mode 100644
index 00000000000..82b45eb75f4
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/scoped/old-content.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html class=reftest-wait>
+<head>
+<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
+<link rel="match" href="content-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<script src="/web-animations/testcommon.js"></script>
+<style>
+
+body { margin: 20px }
+#scope {
+  position: relative; z-index: 0; background: pink;
+  border: 5px dashed purple; padding: 5px;
+  width: 180px; height: 120px;
+}
+#part {
+  position: relative; z-index: 0; background: lightgrey;
+  border: 5px solid blue; padding: 5px;
+  width: 120px; height: 60px;
+  left: 20px; top: 20px;
+  view-transition-name: foo;
+}
+
+/* TODO(crbug.com/405117185): This shouldn't be necessary. */
+:root { view-transition-name: none; }
+
+#scope::view-transition { background: yellow; }
+#scope::view-transition-group(foo) { animation-play-state: paused; }
+#scope::view-transition-new(foo) { animation: unset; opacity: 0; }
+#scope::view-transition-old(foo) { animation: unset; opacity: 1; }
+
+</style>
+</head>
+<body>
+<div id=scope>
+  <div id=part>
+    PARTICIPANT
+  </div>
+</div>
+<script>
+
+const scope = document.querySelector("#scope");
+failIfNot(scope.startViewTransition, "Missing element.startViewTransition");
+
+async function runTest() {
+  await waitForCompositorReady();
+  scope.startViewTransition(() => requestAnimationFrame(takeScreenshot));
+}
+onload = () => runTest();
+
+</script>
+</body>
+</html>
diff --git a/tests/wpt/tests/css/css-view-transitions/snapshot-containing-block-absolute.html b/tests/wpt/tests/css/css-view-transitions/snapshot-containing-block-absolute.html
index 91b71f7eec9..a8a03b62e19 100644
--- a/tests/wpt/tests/css/css-view-transitions/snapshot-containing-block-absolute.html
+++ b/tests/wpt/tests/css/css-view-transitions/snapshot-containing-block-absolute.html
@@ -35,6 +35,7 @@ body {
 
 ::view-transition-group(target) {
   animation-duration: 50s;
+  animation-play-state: paused;
   top: unset;
   left: unset;
   right: 0px;
@@ -50,6 +51,16 @@ body {
   background-color: limegreen;
 }
 
+::view-transition-old(*) {
+  animation: unset;
+  opacity: 1;
+}
+
+::view-transition-new(*) {
+  animation: unset;
+  opacity: 0;
+}
+
 </style>
 
 <div id="target">TARGET</div>
diff --git a/tests/wpt/tests/css/css-view-transitions/snapshot-containing-block-static.html b/tests/wpt/tests/css/css-view-transitions/snapshot-containing-block-static.html
index 44fe4cfc5e6..fcea95e6efd 100644
--- a/tests/wpt/tests/css/css-view-transitions/snapshot-containing-block-static.html
+++ b/tests/wpt/tests/css/css-view-transitions/snapshot-containing-block-static.html
@@ -33,8 +33,11 @@ div {
   view-transition-name: target;
 }
 
-::view-transition-group(target) {
-  animation-duration: 50s;
+::view-transition-group(target),
+::view-transition-image-pair(target),
+::view-transition-old(target),
+::view-transition-new(target) {
+  animation-play-state: paused;
 }
 
 ::view-transition {
diff --git a/tests/wpt/tests/css/css-view-transitions/to-keyframe-values.html b/tests/wpt/tests/css/css-view-transitions/to-keyframe-values.html
new file mode 100644
index 00000000000..f50cf993ee8
--- /dev/null
+++ b/tests/wpt/tests/css/css-view-transitions/to-keyframe-values.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<title>CSS View Transitions: Verify to keyframe values</title>
+<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+:root { view-transition-name: none }
+#item {
+  view-transition-name: item;
+  width: 10px;
+  height: 10px;
+  position: relative;
+}
+.shifted {
+  left: 20px;
+}
+::view-transition-group(*) {
+  animation-play-state: paused;
+}
+</style>
+<div id=item></div>
+
+<script>
+async_test((t) => {
+  document.startViewTransition(() => item.classList.add("shifted")).ready.then(() => {
+    let anims = document.getAnimations().filter(a => {
+      return a.effect.pseudoElement == '::view-transition-group(item)';
+    });
+
+    t.step(() => {
+      assert_equals(anims.length, 1);
+      assert_equals(anims[0].effect.getKeyframes().length, 2);
+      assert_true(anims[0].effect.getKeyframes()[0].transform.startsWith("matrix"),
+        `keyframe[0] should be matrix, not ${anims[0].effect.getKeyframes()[0].transform}`);
+      assert_true(anims[0].effect.getKeyframes()[1].transform.startsWith("matrix"),
+        `keyframe[1] should be matrix, not ${anims[0].effect.getKeyframes()[1].transform}`);
+    });
+    t.done();
+  });
+});
+</script>
diff --git a/tests/wpt/tests/css/css-view-transitions/update-callback-called-once.html b/tests/wpt/tests/css/css-view-transitions/update-callback-called-once.html
index c84368c95c4..cd27df6dafd 100644
--- a/tests/wpt/tests/css/css-view-transitions/update-callback-called-once.html
+++ b/tests/wpt/tests/css/css-view-transitions/update-callback-called-once.html
@@ -11,6 +11,13 @@
         height: 100px;
         background-color: red;
     }
+
+    ::view-transition-group(*),
+    ::view-transition-image-pair(*),
+    ::view-transition-old(*),
+    ::view-transition-new(*) {
+      animation-play-state: paused;
+    }
 </style>
 <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
 <div id="target"></div>
diff --git a/tests/wpt/tests/css/cssom/cssom-fontfacerule-constructors.html b/tests/wpt/tests/css/cssom/cssom-fontfacerule-constructors.html
index ed1cab257df..7068b822a1c 100644
--- a/tests/wpt/tests/css/cssom/cssom-fontfacerule-constructors.html
+++ b/tests/wpt/tests/css/cssom/cssom-fontfacerule-constructors.html
@@ -52,9 +52,9 @@
 
             test(function(){
                 for (var i = 0; i < validRules.length; ++i) {
-                    assert_equals(validRules.item(i).style.toString(), '[object CSSStyleDeclaration]');
+                    assert_equals(validRules.item(i).style.toString(), '[object CSSFontFaceDescriptors]');
                 }
-            }, 'The style attribute must return a CSSStyleDeclaration block')
+            }, 'The style attribute must return a CSSFontFaceDescriptors block')
 
         </script>
 
diff --git a/tests/wpt/tests/css/cssom/cssstyledeclaration-cssfontrule.tentative.html b/tests/wpt/tests/css/cssom/cssstyledeclaration-cssfontrule.tentative.html
index 2efab276c5b..f56d23e553b 100644
--- a/tests/wpt/tests/css/cssom/cssstyledeclaration-cssfontrule.tentative.html
+++ b/tests/wpt/tests/css/cssom/cssstyledeclaration-cssfontrule.tentative.html
@@ -19,9 +19,4 @@ test(() => {
 }, "a CSSStyleDeclaration for a CSSFontRule contains a unicode-range attribute");
 
 
-test(() => {
-  assert_true("flex-direction" in fontFaceRule.style);
-  assert_idl_attribute(fontFaceRule.style, "flex-direction");
-}, "a CSSStyleDeclaration for a CSSFontRule contains a flex-direction attribute");
-
 </script>
diff --git a/tests/wpt/tests/css/cssom/cssstyledeclaration-csstext-all-shorthand.html b/tests/wpt/tests/css/cssom/cssstyledeclaration-csstext-all-shorthand.html
index 3b408f4cd67..1e224200649 100644
--- a/tests/wpt/tests/css/cssom/cssstyledeclaration-csstext-all-shorthand.html
+++ b/tests/wpt/tests/css/cssom/cssstyledeclaration-csstext-all-shorthand.html
@@ -33,7 +33,11 @@ test(function() {
     cssText += longhand + ": inherit; ";
   }
   style.cssText = cssText;
-  assert_equals(style.cssText, "all: inherit; direction: inherit; unicode-bidi: inherit;");
+  if (CSS.supports("interactivity:inert")) {
+    assert_equals(style.cssText, "all: inherit; direction: inherit; interactivity: inherit; unicode-bidi: inherit;");
+  } else {
+    assert_equals(style.cssText, "all: inherit; direction: inherit; unicode-bidi: inherit;");
+  }
 }, "'all' shorthand with all longhands");
 
 test(function() {
diff --git a/tests/wpt/tests/css/cssom/getComputedStyle-resolved-min-size-auto.html b/tests/wpt/tests/css/cssom/getComputedStyle-resolved-min-size-auto.html
new file mode 100644
index 00000000000..be6010d1999
--- /dev/null
+++ b/tests/wpt/tests/css/cssom/getComputedStyle-resolved-min-size-auto.html
@@ -0,0 +1,96 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSSOM: resolved value of min-width and min-height:auto should be 0 except in certain defined cases</title>
+<link rel="help" href="https://drafts.csswg.org/cssom/#resolved-value">
+<link rel="help" href="https://drafts.csswg.org/css-sizing-3/#valdef-width-auto">
+<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#aspect-ratio">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/11716">
+<link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
+<link rel="author" title="Mozilla" href="https://mozilla.org">
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<!-- OVERVIEW:
+     * Elements to be tested here must include an 'id'.
+     * We use a "preservesAuto" attribute to tag the elements
+       are expected to preserve "auto" in the resolved value of
+       min-width and min-height.
+  -->
+
+<!-- The test content is in a scrollable div for cosmetic reasons, so that it
+     can be inspected but also doesn't push the testharness output off the
+     bottom of the screen: -->
+<div style="overflow: scroll; width: 300px; height: 200px">
+  <div id="block-box"></div>
+  <div id="inline-box"></div>
+
+  <!-- Elements with a nondefault aspect-ratio preserve 'auto': -->
+  <div id="block-with-valid-aspect-ratio" style="aspect-ratio: 1/1"
+       preservesAuto></div>
+  <div id="block-with-degenerate-aspect-ratio" style="aspect-ratio: 0/1"
+     preservesAuto></div>
+  <div id="block-with-two-part-valid-aspect-ratio"
+       style="aspect-ratio: auto 1/1" preservesAuto></div>
+  <div id="block-with-two-part-degenerate-aspect-ratio"
+       style="aspect-ratio: auto 0/1" preservesAuto></div>
+
+  <!-- Note: aspect-ratio doesn't apply to inline boxes, but we treat it as
+       toggling getComputedStyle to return the true 'min-width:auto' value
+       regardless. -->
+  <span id="inline-with-valid-aspect-ratio" style="aspect-ratio: 1/1"
+        preservesAuto></span>
+  <span id="inline-with-degenerate-aspect-ratio" style="aspect-ratio: 0/1"
+        preservesAuto></span>
+
+  <!-- flex and grid items should preserve 'auto': -->
+  <div style="display: flex">
+    <div id="flex-item-row" preservesAuto></div>
+  </div>
+  <div style="display: flex; flex-direction: column;">
+  <div id="flex-item-column" preservesAuto></div>
+  </div>
+  <div style="display: grid">
+    <div id="grid-item" preservesAuto></div>
+  </div>
+
+  <!-- Per https://drafts.csswg.org/css-sizing/#valdef-width-auto
+       the min-width/min-height:auto value "resolves to zero when no box is
+       generated" (regardless of aspect-ratio & flex/grid-item special cases)
+       -->
+  <div id="display-none" style="display: none"></div>
+  <div id="display-none-valid-aspect-ratio"
+       style="display: none; aspect-ratio:2/1"></div>
+  <div style="display:none">
+    <div id="display-none-subtree-valid-aspect-ratio"
+         style="aspect-ratio:2/1"></div>
+  </div>
+  <div style="display: none">
+    <div style="display: flex">
+      <div id="display-none-subtree-flex-item"></div>
+    </div>
+  </div>
+  <div style="display: none">
+    <div style="display: grid">
+      <div id="display-none-subtree-grid-item"></div>
+    </div>
+  </div>
+</div>
+
+<script>
+for (const e of document.querySelectorAll("[id]")) {
+  test(function() {
+    const cs = getComputedStyle(e);
+    const doesPreserveAuto = e.hasAttribute("preservesAuto");
+    const expectedVal = doesPreserveAuto ?  "auto" : "0px";
+    const expectationMessage = doesPreserveAuto ?
+          "should round-trip through getComputedStyle" :
+          `should be converted to ${expectedVal} in getComputedStyle`;
+
+    for (const prop of ["min-width", "min-height"]) {
+      assert_equals(cs[prop], expectedVal, `${e.id}: '${prop}:auto' ${expectationMessage} (as initial value)`);
+      e.style.setProperty(prop, "auto");
+      assert_equals(cs[prop], expectedVal, `${e.id}: '${prop}:auto' ${expectationMessage} (as specified value)`);
+      e.style.removeProperty(prop);
+    }
+  }, `Resolved value of min-width & min-height 'auto' keyword behaves as expected on element with id="${e.id}"`);
+}
+</script>
diff --git a/tests/wpt/tests/css/cssom/idlharness.html b/tests/wpt/tests/css/cssom/idlharness.html
index e27629c03b1..a54b77a3b94 100644
--- a/tests/wpt/tests/css/cssom/idlharness.html
+++ b/tests/wpt/tests/css/cssom/idlharness.html
@@ -49,14 +49,16 @@ idl_test(
       CSSMarginRule: ['sheet.cssRules[2].cssRules[0]'],
       CSSMediaRule: ['sheet.cssRules[3]'],
       CSSStyleRule: ['sheet.cssRules[4]'],
-      CSSStyleDeclaration: [
+      CSSStyleProperties: [
         'sheet.cssRules[4].style', // CSSStyleRule
-        'sheet.cssRules[2].style', // CSSPageRule
         'sheet.cssRules[2].cssRules[0].style', // CSSMarginRule
         'style_element.style', // ElementCSSInlineStyle for HTMLElement
         'svg_element.style', // ElementCSSInlineStyle for SVGElement
         'getComputedStyle(svg_element)'
       ],
+      CSSPageDescriptors: [
+        'sheet.cssRules[2].style', // CSSPageRule
+      ],
       ProcessingInstruction: ['xmlss_pi'],
       Window: ['window'],
       HTMLElement: [
diff --git a/tests/wpt/tests/css/mediaqueries/WEB_FEATURES.yml b/tests/wpt/tests/css/mediaqueries/WEB_FEATURES.yml
index b090111be0a..24027360aab 100644
--- a/tests/wpt/tests/css/mediaqueries/WEB_FEATURES.yml
+++ b/tests/wpt/tests/css/mediaqueries/WEB_FEATURES.yml
@@ -22,3 +22,6 @@ features:
   files:
   - display-mode.html
   - display-mode.tentative.html
+- name: update
+  files:
+  - update-media-feature.html
diff --git a/tests/wpt/tests/css/printing/background-image-print-ref.html b/tests/wpt/tests/css/printing/background-image-print-ref.html
index 305aa2fce2f..8fb1b3998f0 100644
--- a/tests/wpt/tests/css/printing/background-image-print-ref.html
+++ b/tests/wpt/tests/css/printing/background-image-print-ref.html
@@ -4,6 +4,9 @@
 <meta charset="utf-8">
 <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1769429">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     font-family: century;
     font-weight: bold;
diff --git a/tests/wpt/tests/css/printing/background-image-print.html b/tests/wpt/tests/css/printing/background-image-print.html
index 8d294107406..2119f6952a4 100644
--- a/tests/wpt/tests/css/printing/background-image-print.html
+++ b/tests/wpt/tests/css/printing/background-image-print.html
@@ -7,6 +7,9 @@
 <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1769429">
 <meta name="fuzzy" content="maxDifference=0-3;totalPixels=0-400">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   body {
     font-family: century;
     font-weight: bold;
diff --git a/tests/wpt/tests/css/reference/ref-filled-green-100px-square-print-ref.html b/tests/wpt/tests/css/reference/ref-filled-green-100px-square-print-ref.html
new file mode 100644
index 00000000000..f55a4cf12ec
--- /dev/null
+++ b/tests/wpt/tests/css/reference/ref-filled-green-100px-square-print-ref.html
@@ -0,0 +1,3 @@
+<!DOCTYPE html>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="width:100px; height:100px; print-color-adjust:exact; background-color:green;"></div>
diff --git a/tests/wpt/tests/css/selectors/parsing/WEB_FEATURES.yml b/tests/wpt/tests/css/selectors/parsing/WEB_FEATURES.yml
index f3453b29162..ab1fe19e4d1 100644
--- a/tests/wpt/tests/css/selectors/parsing/WEB_FEATURES.yml
+++ b/tests/wpt/tests/css/selectors/parsing/WEB_FEATURES.yml
@@ -9,3 +9,6 @@ features:
 - name: state
   files:
   - parse-state.html
+- name: has-slotted
+  files:
+  - parse-has-slotted.tentative.html
diff --git a/tests/wpt/tests/custom-elements/pseudo-class-defined-print-ref.html b/tests/wpt/tests/custom-elements/pseudo-class-defined-print-ref.html
index 1ed6da59582..903f3f7d8dd 100644
--- a/tests/wpt/tests/custom-elements/pseudo-class-defined-print-ref.html
+++ b/tests/wpt/tests/custom-elements/pseudo-class-defined-print-ref.html
@@ -1,5 +1,8 @@
 <!doctype html>
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   div {
     width: 100px;
     height: 100px;
diff --git a/tests/wpt/tests/custom-elements/pseudo-class-defined-print.html b/tests/wpt/tests/custom-elements/pseudo-class-defined-print.html
index 24e1bb7b03f..a6b87bb0bb9 100644
--- a/tests/wpt/tests/custom-elements/pseudo-class-defined-print.html
+++ b/tests/wpt/tests/custom-elements/pseudo-class-defined-print.html
@@ -1,6 +1,9 @@
 <!doctype html>
 <link rel="match" href="pseudo-class-defined-print-ref.html">
 <style>
+  :root {
+    print-color-adjust: exact;
+  }
   custom-element {
     display: block;
     width: 100px;
diff --git a/tests/wpt/tests/docs/running-tests/webkitgtk_minibrowser.md b/tests/wpt/tests/docs/running-tests/webkitgtk_minibrowser.md
index 55bcbf1bd6a..6af2da94406 100644
--- a/tests/wpt/tests/docs/running-tests/webkitgtk_minibrowser.md
+++ b/tests/wpt/tests/docs/running-tests/webkitgtk_minibrowser.md
@@ -16,7 +16,7 @@ to run it manually you can find it on any of this paths:
 * Debian or Ubuntu: `/usr/lib/${TRIPLET}/webkitgtk-${APIVERSION}/MiniBrowser`
   * Note: `${TRIPLET}` is the output of the command `gcc -dumpmachine`
 
-# Nightly universal bundle
+## Nightly universal bundle
 
 Alternatively you can pass to `wpt` the flags `--install-browser --channel=nightly`
 and then `wpt` will automatically download the last bundle and unpack it on the
@@ -32,7 +32,7 @@ issues with this bundle then a possible workaround is to try to run the tests he
 inside a virtualized display like `Xvfb` (see command `xvfb-run -a` on Debian/Ubuntu).
 You can do this also from inside a virtual machine or Docker container.
 
-# Headless mode
+## Headless mode
 
 WebKitGTK does not have a native headless mode, but you can workaround that
 by running the tests inside a virtualized display. For example you can use
@@ -44,7 +44,7 @@ Example:
     xvfb-run -a ./wpt run [more-options] webkitgtk_minibrowser [tests-to-run]
 
 
-# Using a custom WebKitGTK build
+## Using a custom WebKitGTK build
 
 If you want to test with a custom WebKitGTK build the easiest way is that you
 install this build in a temporary directory (`/tmp/wkgtktest` in this example),
@@ -68,7 +68,7 @@ Note: It is important that you build WebKitGTK against the libraries of your sys
 Do not build WebKitGTK inside Flatpak or other container unless you run `wpt` also
 from inside this container.
 
-# Running tests locally
+## Running tests locally
 
 Is a good idea that you increase the verbosity of `wpt` by passing to it the flag `--log-mach=-`
 Also, please check the documentation about [Running Tests from the Local System](from-local-system).
diff --git a/tests/wpt/tests/docs/running-tests/wpewebkit_minibrowser.md b/tests/wpt/tests/docs/running-tests/wpewebkit_minibrowser.md
index 7721279b041..6f9328633a1 100644
--- a/tests/wpt/tests/docs/running-tests/wpewebkit_minibrowser.md
+++ b/tests/wpt/tests/docs/running-tests/wpewebkit_minibrowser.md
@@ -15,7 +15,7 @@ to run it manually you can find it on any of this paths:
 * Debian or Ubuntu: `/usr/lib/${TRIPLET}/wpe-webkit-${APIVERSION}/MiniBrowser`
   * Note: `${TRIPLET}` is the output of the command `gcc -dumpmachine`
 
-# Nightly universal bundle
+## Nightly universal bundle
 
 Alternatively you can pass to `wpt` the flags `--install-browser --channel=nightly`
 and then `wpt` will automatically download the last bundle and unpack it on the
@@ -30,7 +30,7 @@ If you are using proprietary graphics drivers (NVIDIA, AMDGPU PRO, etc) and you
 issues with this bundle then a possible workaround is to try to run the tests in
 headless mode, for that pass the flag `--headless` to `wpt`
 
-# Headless mode
+## Headless mode
 
 The WPE MiniBrowser needs a Wayland display to run, but if you don't have one
 or you want to enable headless mode you can pass the flag `--headless` to `wpt`.
@@ -40,7 +40,7 @@ Example:
 ./wpt run [more-options] --headless wpewebkit_minibrowser [tests-to-run]
 ```
 
-# Using a custom WPE WebKit build
+## Using a custom WPE WebKit build
 
 If you want to test with a custom WPE WebKit build the easiest way is that you
 install this build in a temporary directory (`/tmp/wpetest` in this example),
@@ -64,7 +64,7 @@ Note: It is important that you build WPE WebKit against the libraries of your sy
 Do not build WPE WebKit inside Flatpak or other container unless you run `wpt` also
 from inside this container.
 
-# Running tests locally
+## Running tests locally
 
 Is a good idea that you increase the verbosity of `wpt` by passing to it the flag `--log-mach=-`
 Also, please check the documentation about [Running Tests from the Local System](from-local-system).
diff --git a/tests/wpt/tests/dom/events/scrolling/scroll-cross-origin-iframes.html b/tests/wpt/tests/dom/events/scrolling/scroll-cross-origin-iframes.html
new file mode 100644
index 00000000000..4c873139965
--- /dev/null
+++ b/tests/wpt/tests/dom/events/scrolling/scroll-cross-origin-iframes.html
@@ -0,0 +1,77 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Verify that two sibling cross-origin iframes both correctly scroll on MouseWheel events, as per https://crbug.com/675695.</title>
+<script src="/common/get-host-info.sub.js"></script>
+<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>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="scroll_support.js"></script>
+<body>
+  <iframe id="target-iframe1"
+      style="height: 100px; width: 100px; overflow-y: scroll; position: absolute; left: 50px; top: 50px">
+  </iframe>
+  <iframe id="target-iframe2"
+      style="height: 100px; width: 100px; overflow-y: scroll; position: absolute; left: 50px; top: 200px">
+  </iframe>
+  <script>
+    "use strict";
+
+    function waitForFrameLoadAsync(frame) {
+      return new Promise(async (resolve) => {
+        frame.addEventListener('load', resolve, { once: true });
+      });
+    }
+
+    function waitForMessageAsync(expected_frame_id, expected_command) {
+      return new Promise((resolve) => {
+        window.addEventListener('message', (event) => {
+          assert_equals(event.data.command, expected_command);
+          assert_equals(event.data.frame_id, expected_frame_id);
+          resolve(event.data.scrollTop);
+        }, { once: true });
+      });
+    }
+
+    function waitForCrossOriginFrameSetupAsync(frame) {
+      return new Promise(async (resolve) => {
+        const setup_ack_waiter = waitForMessageAsync(frame.id, 'setup');
+        const load_ack_waiter = waitForFrameLoadAsync(frame);
+
+        const host = get_host_info();
+        frame.src = host.HTTP_NOTSAMESITE_ORIGIN +
+            "/dom/events/scrolling/scroll-cross-origin-iframes.sub.html";
+        await load_ack_waiter;
+        await frame.contentWindow.postMessage({
+          command: 'setup',
+          frame_id: frame.id
+        }, "*");
+        const scroll_top = await setup_ack_waiter;
+        resolve(scroll_top);
+      });
+    }
+
+    promise_test(async () => {
+      var frame_map = new Map();
+      for (const frame of document.querySelectorAll('iframe')) {
+        const scroll_top_before = await waitForCrossOriginFrameSetupAsync(frame);
+        frame_map.set(frame.id, scroll_top_before);
+      }
+      assert_equals(frame_map.size, 2);
+
+      for (const [frame_id, scroll_top_before] of frame_map) {
+        const frame = document.getElementById(frame_id);
+        const scrollend_ack_waiter = waitForMessageAsync(frame_id, 'onscrollend');
+        await new test_driver.Actions()
+            .scroll(/*cursor_x=*/0, /*cursor_y=*/0,
+                    /*delta_x=*/0, /*delta_y=*/50,
+                    {origin: frame})
+            .send();
+        const scroll_top_after = await scrollend_ack_waiter;
+        assert_greater_than(scroll_top_after, scroll_top_before,
+                            'Failed to advance scrollTop target');
+      }
+    }, "Verify sibling cross-origin iframes can wheel-scroll.");
+  </script>
+</body>
diff --git a/tests/wpt/tests/dom/events/scrolling/scroll-cross-origin-iframes.sub.html b/tests/wpt/tests/dom/events/scrolling/scroll-cross-origin-iframes.sub.html
new file mode 100644
index 00000000000..e6d12794e3f
--- /dev/null
+++ b/tests/wpt/tests/dom/events/scrolling/scroll-cross-origin-iframes.sub.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<div style="height: 300px"></div>
+<script>
+var is_setup = false;
+var port;
+var frame_id;
+
+function postReplyMessage(command) {
+  const message_target = (port ? port : parent);
+  message_target.postMessage({
+    command: command,
+    frame_id: frame_id,
+    scrollTop: document.documentElement.scrollTop
+  }, "*");
+}
+
+function handleMessage(event) {
+  switch (event.data.command) {
+    case 'setup':
+      is_setup = false;
+      port = event.source;
+      frame_id = event.data.frame_id;
+      if (document.scrollingElement.scrollLeft != 0 ||
+          document.scrollingElement.scrollTop != 0) {
+        document.scrollingElement.scrollTo(0, 0);
+      } else {
+        is_setup = true;
+        postReplyMessage('setup');
+      }
+      break;
+    default:
+      break;
+  }
+}
+
+function handleScrollend() {
+  var command = 'onscrollend';
+
+  if (!is_setup &&
+      document.scrollingElement.scrollTop == 0 &&
+      document.scrollingElement.scrollLeft == 0) {
+    is_setup = true;
+    command = 'setup';
+  }
+
+  postReplyMessage(command);
+}
+
+window.addEventListener('message', handleMessage);
+window.addEventListener('scrollend', handleScrollend);
+</script>
diff --git a/tests/wpt/tests/dom/nodes/moveBefore/custom-element-move-reactions.html b/tests/wpt/tests/dom/nodes/moveBefore/custom-element-move-reactions.html
index a561180f945..c5702eb7bc1 100644
--- a/tests/wpt/tests/dom/nodes/moveBefore/custom-element-move-reactions.html
+++ b/tests/wpt/tests/dom/nodes/moveBefore/custom-element-move-reactions.html
@@ -9,10 +9,14 @@
 <body>
   <section id="section"></section>
   <script>
+    let index = 0;
+    function unique_element_name() {
+        return `ce-${++index}`;
+    }
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const element_name = `ce-${performance.now()}`;
+        const element_name = unique_element_name();
         customElements.define(element_name,
             class MockCustomElement extends HTMLElement {
                 connectedCallback() { reactions.push("connected"); }
@@ -31,7 +35,7 @@
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const element_name = `ce-${performance.now()}`;
+        const element_name = unique_element_name();
         customElements.define(element_name,
             class MockCustomElement extends HTMLElement {
                 connectedCallback() { reactions.push(this.isConnected); }
@@ -50,7 +54,7 @@
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const element_name = `ce-${performance.now()}`;
+        const element_name = unique_element_name();
         customElements.define(element_name,
             class MockCustomElement extends HTMLElement {
               connectedMoveCallback() { reactions.push("connectedMove"); }
@@ -70,8 +74,8 @@
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const outer_element_name = `ce-${performance.now()}-outer`;
-        const inner_element_name = `ce-${performance.now()}-inner`;
+        const outer_element_name = unique_element_name();
+        const inner_element_name = unique_element_name();
         customElements.define(outer_element_name,
             class MockCustomElement extends HTMLElement {
               connectedCallback() { reactions.push("outer connected"); }
@@ -97,7 +101,7 @@
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const element_name = `ce-${performance.now()}`;
+        const element_name = unique_element_name();
         customElements.define(element_name,
             class MockCustomElement extends HTMLElement {
                 disconnectedCallback() { reactions.push("disconnected"); }
@@ -115,7 +119,7 @@
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const element_name = `ce-${performance.now()}`;
+        const element_name = unique_element_name();
         customElements.define(element_name,
             class MockCustomElement extends HTMLElement {
                 connectedCallback() { reactions.push("connected"); }
diff --git a/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-destroy-persistent-license.https.html b/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-destroy-persistent-license.https.html
deleted file mode 100644
index 2fb1db4dccf..00000000000
--- a/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-destroy-persistent-license.https.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-    <meta charset=utf-8>
-    <title>Encrypted Media Extensions: persistent-license, playback, destroy license with Clear Key, mp4</title>
-    <link rel="help" href="https://w3c.github.io/encrypted-media/">
-
-    <!-- Web Platform Test Harness scripts -->
-    <script src=/resources/testharness.js></script>
-    <script src=/resources/testharnessreport.js></script>
-
-    <!-- Helper scripts for Encrypted Media Extensions tests  -->
-    <script src=/encrypted-media/util/utils.js></script>
-    <script src=/encrypted-media/util/testmediasource.js></script>
-    <script src=/encrypted-media/util/utf8.js></script>
-
-    <!-- Content metadata -->
-    <script src=/encrypted-media/content/content-metadata.js></script>
-
-    <!-- Message handler for Clear Key keysystem -->
-    <script src=/encrypted-media/util/clearkey-messagehandler.js></script>
-
-    <!-- The script for this specific test -->
-    <script src=/encrypted-media/scripts/playback-destroy-persistent-license.js></script>
-
-  </head>
-  <body>
-    <div id='log'></div>
-
-    <div id='video'>
-      <video id="videoelement" width="200px"></video>
-    </div>
-
-    <script>
-        var contentitem = content['mp4-basic'],
-            handler = new MessageHandler( 'org.w3.clearkey', contentitem ),
-            config = {  video:              document.getElementById('videoelement'),
-                        keysystem:          'org.w3.clearkey',
-                        messagehandler:     handler.messagehandler,
-                        audioPath:          contentitem.audio.path,
-                        videoPath:          contentitem.video.path,
-                        audioType:          contentitem.audio.type,
-                        videoType:          contentitem.video.type,
-                        initDataType:       'keyids',
-                        initData:           getInitData(contentitem,'keyids')
-                    };
-
-        runTest(config);
-    </script>
-  </body>
-</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-persistent-license-events.https.html b/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-persistent-license-events.https.html
deleted file mode 100644
index 66720946d4b..00000000000
--- a/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-persistent-license-events.https.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-    <meta charset=utf-8>
-    <title>Encrypted Media Extensions: Successful Playback, persistent-license session with Clear Key, mp4, event sequence</title>
-    <link rel="help" href="https://w3c.github.io/encrypted-media/">
-
-    <!-- Web Platform Test Harness scripts -->
-    <script src=/resources/testharness.js></script>
-    <script src=/resources/testharnessreport.js></script>
-
-    <!-- Helper scripts for Encrypted Media Extensions tests  -->
-    <script src=/encrypted-media/util/utils.js></script>
-    <script src=/encrypted-media/util/testmediasource.js></script>
-    <script src=/encrypted-media/util/utf8.js></script>
-
-    <!-- Content metadata -->
-    <script src=/encrypted-media/content/content-metadata.js></script>
-
-    <!-- Message handler for Clear Key keysystem -->
-    <script src=/encrypted-media/util/clearkey-messagehandler.js></script>
-
-    <!-- The script for this specific test -->
-    <script src=/encrypted-media/scripts/playback-persistent-license-events.js></script>
-
-  </head>
-  <body>
-    <div id='log'></div>
-
-    <div id='video'>
-      <video id="videoelement" width="200px"></video>
-    </div>
-
-    <script>
-        var contentitem = content['mp4-basic'],
-            handler = new MessageHandler( 'org.w3.clearkey', contentitem ),
-            config = {  video:              document.getElementById('videoelement'),
-                        keysystem:          'org.w3.clearkey',
-                        messagehandler:     handler.messagehandler,
-                        audioPath:          contentitem.audio.path,
-                        videoPath:          contentitem.video.path,
-                        audioType:          contentitem.audio.type,
-                        videoType:          contentitem.video.type,
-                        initDataType:       'keyids',
-                        initData:           getInitData(contentitem,'keyids')
-                    };
-
-        runTest(config);
-    </script>
-  </body>
-</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-persistent-license.https.html b/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-persistent-license.https.html
deleted file mode 100644
index b65cf5337ff..00000000000
--- a/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-persistent-license.https.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-    <meta charset=utf-8>
-    <title>Encrypted Media Extensions: Successful Playback, persistent-license session with Clear Key, mp4</title>
-    <link rel="help" href="https://w3c.github.io/encrypted-media/">
-
-    <!-- Web Platform Test Harness scripts -->
-    <script src=/resources/testharness.js></script>
-    <script src=/resources/testharnessreport.js></script>
-
-    <!-- Helper scripts for Encrypted Media Extensions tests  -->
-    <script src=/encrypted-media/util/utils.js></script>
-    <script src=/encrypted-media/util/testmediasource.js></script>
-    <script src=/encrypted-media/util/utf8.js></script>
-
-    <!-- Content metadata -->
-    <script src=/encrypted-media/content/content-metadata.js></script>
-
-    <!-- Message handler for Clear Key keysystem -->
-    <script src=/encrypted-media/util/clearkey-messagehandler.js></script>
-
-    <!-- The script for this specific test -->
-    <script src=/encrypted-media/scripts/playback-persistent-license.js></script>
-
-  </head>
-  <body>
-    <div id='log'></div>
-
-    <div id='video'>
-      <video id="videoelement" width="200px"></video>
-    </div>
-
-    <script>
-        var contentitem = content['mp4-basic'],
-            handler = new MessageHandler( 'org.w3.clearkey', contentitem ),
-            config = {  video:              document.getElementById('videoelement'),
-                        keysystem:          'org.w3.clearkey',
-                        messagehandler:     handler.messagehandler,
-                        audioPath:          contentitem.audio.path,
-                        videoPath:          contentitem.video.path,
-                        audioType:          contentitem.audio.type,
-                        videoType:          contentitem.video.type,
-                        initDataType:       'keyids',
-                        initData:           getInitData(contentitem,'keyids')
-                       };
-
-        runTest(config);
-    </script>
-  </body>
-</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-retrieve-destroy-persistent-license.https.html b/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-retrieve-destroy-persistent-license.https.html
deleted file mode 100644
index c8838d2b7dc..00000000000
--- a/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-retrieve-destroy-persistent-license.https.html
+++ /dev/null
@@ -1,52 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-    <meta charset=utf-8>
-    <title>Encrypted Media Extensions: persistent-license, playback, retrieve, playback and destroy with Clear Key, mp4</title>
-    <link rel="help" href="https://w3c.github.io/encrypted-media/">
-
-    <!-- Web Platform Test Harness scripts -->
-    <script src=/resources/testharness.js></script>
-    <script src=/resources/testharnessreport.js></script>
-
-    <!-- Helper scripts for Encrypted Media Extensions tests  -->
-    <script src=/encrypted-media/util/utils.js></script>
-    <script src=/encrypted-media/util/testmediasource.js></script>
-    <script src=/encrypted-media/util/utf8.js></script>
-
-    <!-- Content metadata -->
-    <script src=/encrypted-media/content/content-metadata.js></script>
-
-    <!-- Message handler for Clear Key keysystem -->
-    <script src=/encrypted-media/util/clearkey-messagehandler.js></script>
-
-    <!-- The script for this specific test -->
-    <script src=/encrypted-media/scripts/playback-retrieve-persistent-license.js></script>
-
-  </head>
-  <body>
-    <div id='log'></div>
-
-    <div id='video'>
-      <video id="videoelement" width="200px"></video>
-    </div>
-
-    <script>
-        var contentitem = content['mp4-basic'],
-            handler = new MessageHandler( 'org.w3.clearkey', contentitem ),
-            config = {  video:              document.getElementById('videoelement'),
-                        keysystem:          'org.w3.clearkey',
-                        messagehandler:     handler.messagehandler,
-                        audioPath:          contentitem.audio.path,
-                        videoPath:          contentitem.video.path,
-                        audioType:          contentitem.audio.type,
-                        videoType:          contentitem.video.type,
-                        initDataType:       'keyids',
-                        initData:           getInitData(contentitem,'keyids'),
-                        windowscript:       'resources/clearkey-retrieve-destroy-persistent-license.html',
-                        testcase:           'playback, retrieve, playback and destroy' };
-
-        runTest(config);
-    </script>
-  </body>
-</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-retrieve-persistent-license.https.html b/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-retrieve-persistent-license.https.html
deleted file mode 100644
index 072b885d21e..00000000000
--- a/tests/wpt/tests/encrypted-media/clearkey-mp4-playback-retrieve-persistent-license.https.html
+++ /dev/null
@@ -1,52 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-    <meta charset=utf-8>
-    <title>Encrypted Media Extensions: persistent-license playback, retrieve and playback with Clear Key, mp4</title>
-    <link rel="help" href="https://w3c.github.io/encrypted-media/">
-
-    <!-- Web Platform Test Harness scripts -->
-    <script src=/resources/testharness.js></script>
-    <script src=/resources/testharnessreport.js></script>
-
-    <!-- Helper scripts for Encrypted Media Extensions tests  -->
-    <script src=/encrypted-media/util/utils.js></script>
-    <script src=/encrypted-media/util/testmediasource.js></script>
-    <script src=/encrypted-media/util/utf8.js></script>
-
-    <!-- Content metadata -->
-    <script src=/encrypted-media/content/content-metadata.js></script>
-
-    <!-- Message handler for Clear Key keysystem -->
-    <script src=/encrypted-media/util/clearkey-messagehandler.js></script>
-
-    <!-- The script for this specific test -->
-    <script src=/encrypted-media/scripts/playback-retrieve-persistent-license.js></script>
-
-  </head>
-  <body>
-    <div id='log'></div>
-
-    <div id='video'>
-      <video id="videoelement" width="200px"></video>
-    </div>
-
-    <script>
-        var contentitem = content['mp4-basic'],
-            handler = new MessageHandler( 'org.w3.clearkey', contentitem ),
-            config = {  video:              document.getElementById('videoelement'),
-                        keysystem:          'org.w3.clearkey',
-                        messagehandler:     handler.messagehandler,
-                        audioPath:          contentitem.audio.path,
-                        videoPath:          contentitem.video.path,
-                        audioType:          contentitem.audio.type,
-                        videoType:          contentitem.video.type,
-                        initDataType:       'keyids',
-                        initData:           getInitData(contentitem,'keyids'),
-                        windowscript:       'resources/clearkey-retrieve-persistent-license.html',
-                        testcase:           'playback, retrieve and playback' };
-
-        runTest(config);
-    </script>
-  </body>
-</html>
\ No newline at end of file
diff --git a/tests/wpt/tests/encrypted-media/polyfill/cast-polyfill.js b/tests/wpt/tests/encrypted-media/polyfill/cast-polyfill.js
index 576e0ad0406..0c6b47b5cd0 100644
--- a/tests/wpt/tests/encrypted-media/polyfill/cast-polyfill.js
+++ b/tests/wpt/tests/encrypted-media/polyfill/cast-polyfill.js
@@ -29,13 +29,8 @@
             return this._mediaKeys.setServerCertificate( certificate );
         };
 
-        MediaKeys.prototype.createSession = function createSession( sessionType ) {
-
-            if ( sessionType === 'persistent-usage-record' )
-            {
-                return cast.receiver.eme.KeySession.createSession( this._mediaKeys, 'persistent-release-message' );
-            }
-
+        MediaKeys.prototype.createSession = function createSession( sessionType )
+        {
             return this._mediaKeys.createSession( sessionType );
         };
 
diff --git a/tests/wpt/tests/encrypted-media/polyfill/clearkey-polyfill.js b/tests/wpt/tests/encrypted-media/polyfill/clearkey-polyfill.js
index 057ea3e0301..c21a4e8becf 100644
--- a/tests/wpt/tests/encrypted-media/polyfill/clearkey-polyfill.js
+++ b/tests/wpt/tests/encrypted-media/polyfill/clearkey-polyfill.js
@@ -79,38 +79,16 @@
         this._mediaKeys = mediaKeys;
         this._sessions = [ ];
         this._videoelement = undefined;
-        this._onTimeUpdateListener = MediaKeysProxy.prototype._onTimeUpdate.bind( this );
     }
 
     MediaKeysProxy.prototype._setVideoElement = function _setVideoElement( videoElement )
     {
         if ( videoElement !== this._videoelement )
         {
-            if ( this._videoelement )
-            {
-                this._videoelement.removeEventListener( 'timeupdate', this._onTimeUpdateListener );
-            }
-
             this._videoelement = videoElement;
-
-            if ( this._videoelement )
-            {
-                this._videoelement.addEventListener( 'timeupdate', this._onTimeUpdateListener );
-            }
         }
     };
 
-    MediaKeysProxy.prototype._onTimeUpdate = function( event )
-    {
-        this._sessions.forEach( function( session  ) {
-
-            if ( session._sessionType === 'persistent-usage-record' )
-            {
-                session._onTimeUpdate( event );
-            }
-
-        } );
-    };
 
     MediaKeysProxy.prototype._removeSession = function _removeSession( session )
     {
@@ -209,13 +187,6 @@
         }
     };
 
-    MediaKeySessionProxy.prototype._onTimeUpdate = function _onTimeUpdate( event )
-    {
-        if ( !this._firstTime ) this._firstTime = Date.now();
-        this._latestTime = Date.now();
-        this._store();
-    };
-
     MediaKeySessionProxy.prototype._queueMessage = function _queueMessage( messageType, message )
     {
         setTimeout( function() {
@@ -234,18 +205,7 @@
 
     MediaKeySessionProxy.prototype._store = function _store()
     {
-        var data;
-
-        if ( this._sessionType === 'persistent-usage-record' )
-        {
-            data = { kids: this._kids };
-            if ( this._firstTime ) data.firstTime = this._firstTime;
-            if ( this._latestTime ) data.latestTime = this._latestTime;
-        }
-        else
-        {
-            data = { keys: this._keys };
-        }
+        var data = { keys: this._keys };
 
         window.localStorage.setItem( _storageKey( this._sessionId ), JSON.stringify( data ) );
     };
@@ -260,18 +220,8 @@
             return false;
         }
 
-        if ( data.kids )
-        {
-            this._sessionType = 'persistent-usage-record';
-            this._keys = data.kids.map( function( kid ) { return { kid: kid }; } );
-            if ( data.firstTime ) this._firstTime = data.firstTime;
-            if ( data.latestTime ) this._latestTime = data.latestTime;
-        }
-        else
-        {
-            this._sessionType = 'persistent-license';
-            this._keys = data.keys;
-        }
+        this._sessionType = 'persistent-license';
+        this._keys = data.keys;
 
         return true;
     };
@@ -312,30 +262,16 @@
 
                 this._sessionId = sessionId;
 
-                if ( this._sessionType === 'persistent-usage-record' )
-                {
-                    var msg = { kids: this._kids };
-                    if ( this._firstTime ) msg.firstTime = this._firstTime;
-                    if ( this._latestTime ) msg.latestTime = this._latestTime;
 
-                    this._queueMessage( 'license-release', msg );
+                this._createSession();
 
-                    this._state = 'removing';
+                this._state = 'loading';
+                this._loaded = resolve;
+                this._loadfailed = reject;
 
-                    resolve( true );
-                }
-                else
-                {
-                    this._createSession();
+                var initData = { kids: this._kids };
 
-                    this._state = 'loading';
-                    this._loaded = resolve;
-                    this._loadfailed = reject;
-
-                    var initData = { kids: this._kids };
-
-                    this._session.generateRequest( 'keyids', toUtf8( initData ) );
-                }
+                this._session.generateRequest( 'keyids', toUtf8( initData ) );
             }
             catch( error )
             {
@@ -417,12 +353,6 @@
 
             var msg = { kids: this._kids };
 
-            if ( this._sessionType === 'persistent-usage-record' )
-            {
-                if ( this._firstTime ) msg.firstTime = this._firstTime;
-                if ( this._latestTime ) msg.latestTime = this._latestTime;
-            }
-
             this._queueMessage( 'license-release', msg );
 
         }.bind( this ) )
@@ -496,8 +426,7 @@
     function is_persistent_configuration( configuration )
     {
         return configuration.sessionTypes &&
-                ( configuration.sessionTypes.indexOf( 'persistent-usage-record' ) !== -1
-                || configuration.sessionTypes.indexOf( 'persistent-license' ) !== -1 );
+                ( configuration.sessionTypes.indexOf( 'persistent-license' ) !== -1 );
     }
 
     function copy_configuration( src )
diff --git a/tests/wpt/tests/encrypted-media/polyfill/make-polyfill-tests.py b/tests/wpt/tests/encrypted-media/polyfill/make-polyfill-tests.py
index 97c6fc74e93..7773cf9a21f 100644
--- a/tests/wpt/tests/encrypted-media/polyfill/make-polyfill-tests.py
+++ b/tests/wpt/tests/encrypted-media/polyfill/make-polyfill-tests.py
@@ -9,7 +9,6 @@ scripts = '''
     <!-- Polyfill files (NOTE: These are added by auto-generation script) -->
     <script src=/encrypted-media/polyfill/chrome-polyfill.js></script>
     <script src=/encrypted-media/polyfill/firefox-polyfill.js></script>
-    <script src=/encrypted-media/polyfill/edge-persistent-usage-record.js></script>
     <script src=/encrypted-media/polyfill/edge-keystatuses.js></script>
     <script src=/encrypted-media/polyfill/clearkey-polyfill.js></script>'''
 
diff --git a/tests/wpt/tests/encrypted-media/scripts/playback-destroy-persistent-license.js b/tests/wpt/tests/encrypted-media/scripts/playback-destroy-persistent-license.js
index 8a6cacedb40..ce3ede67b65 100644
--- a/tests/wpt/tests/encrypted-media/scripts/playback-destroy-persistent-license.js
+++ b/tests/wpt/tests/encrypted-media/scripts/playback-destroy-persistent-license.js
@@ -90,6 +90,15 @@ function runTest(config,qualifier) {
             return source.done;
         }).then(function(){
             _video.play();
-        }).catch(onFailure);
+        }).catch(function (error) {
+            if (error && error.name === 'NotSupportedError') {
+                // If persistent license is not supported, skip test as
+                // key systems are not required to support this session
+                // type.
+                test.done();
+            } else {
+                onFailure(error);
+            }
+        });
     }, testname);
 }
diff --git a/tests/wpt/tests/encrypted-media/scripts/playback-persistent-license-events.js b/tests/wpt/tests/encrypted-media/scripts/playback-persistent-license-events.js
index 2d99f679f4c..7a381bb2f9d 100644
--- a/tests/wpt/tests/encrypted-media/scripts/playback-persistent-license-events.js
+++ b/tests/wpt/tests/encrypted-media/scripts/playback-persistent-license-events.js
@@ -153,6 +153,15 @@ function runTest(config,qualifier) {
             return source.done;
         }).then(function(){
             _video.play();
-        }).catch(onFailure);
+        }).catch(function (error) {
+            if (error && error.name === 'NotSupportedError') {
+                // If persistent license is not supported, skip test as
+                // key systems are not required to support this session
+                // type.
+                test.done();
+            } else {
+                onFailure(error);
+            }
+        });
     }, testname);
 }
diff --git a/tests/wpt/tests/encrypted-media/scripts/playback-persistent-license.js b/tests/wpt/tests/encrypted-media/scripts/playback-persistent-license.js
index c7e56e3aeaf..9b1f9da4cdd 100644
--- a/tests/wpt/tests/encrypted-media/scripts/playback-persistent-license.js
+++ b/tests/wpt/tests/encrypted-media/scripts/playback-persistent-license.js
@@ -72,6 +72,15 @@ function runTest(config,qualifier) {
             return source.done;
         }).then(function(){
             _video.play();
-        }).catch(onFailure);
+        }).catch(function (error) {
+            if (error && error.name === 'NotSupportedError') {
+                // If persistent license is not supported, skip test as
+                // key systems are not required to support this session
+                // type.
+                test.done();
+            } else {
+                onFailure(error);
+            }
+        });
     }, testname);
 }
diff --git a/tests/wpt/tests/encrypted-media/scripts/playback-retrieve-persistent-license.js b/tests/wpt/tests/encrypted-media/scripts/playback-retrieve-persistent-license.js
index 83cba34028e..ad9728e01ad 100644
--- a/tests/wpt/tests/encrypted-media/scripts/playback-retrieve-persistent-license.js
+++ b/tests/wpt/tests/encrypted-media/scripts/playback-retrieve-persistent-license.js
@@ -110,6 +110,15 @@ function runTest(config,qualifier) {
             return source.done;
         }).then(function(){
             _video.play();
-        }).catch(onFailure);
+        }).catch(function (error) {
+            if (error && error.name === 'NotSupportedError') {
+                // If persistent license is not supported, skip test as
+                // key systems are not required to support this session
+                // type.
+                test.done();
+            } else {
+                onFailure(error);
+            }
+        });
     }, testname);
 }
diff --git a/tests/wpt/tests/encrypted-media/util/drm-messagehandler.js b/tests/wpt/tests/encrypted-media/util/drm-messagehandler.js
index b1565c12cb0..0af63be0686 100644
--- a/tests/wpt/tests/encrypted-media/util/drm-messagehandler.js
+++ b/tests/wpt/tests/encrypted-media/util/drm-messagehandler.js
@@ -18,21 +18,9 @@ drmconfig = {
         "secret" : drmtodaysecret
     } ],
     "com.microsoft.playready": [ {
-        "serverURL": "http://playready-testserver.azurewebsites.net/rightsmanager.asmx",
-        "servertype": "microsoft",
-        "sessionTypes" : [ "persistent-usage-record" ],
-        "certificate" : "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"
-    },
-    {
-        "serverURL": "http://playready.directtaps.net/pr/svc/rightsmanager.asmx",
-        "servertype": "microsoft",
-        "sessionTypes" : [ "persistent-usage-record" ],
-        "certificate" : "Q0hBSQAAAAEAAAUEAAAAAAAAAAJDRVJUAAAAAQAAAfQAAAFkAAEAAQAAAFjt9G6KdSncCkrjbTQPN+/2AAAAAAAAAAAAAAAJIPbrW9dj0qydQFIomYFHOwbhGZVGP2ZsPwcvjh+NFkP/////AAAAAAAAAAAAAAAAAAAAAAABAAoAAABYxw6TjIuUUmvdCcl00t4RBAAAADpodHRwOi8vcGxheXJlYWR5LmRpcmVjdHRhcHMubmV0L3ByL3N2Yy9yaWdodHNtYW5hZ2VyLmFzbXgAAAAAAQAFAAAADAAAAAAAAQAGAAAAXAAAAAEAAQIAAAAAADBRmRRpqV4cfRLcWz9WoXIGZ5qzD9xxJe0CSI2mXJQdPHEFZltrTkZtdmurwVaEI2etJY0OesCeOCzCqmEtTkcAAAABAAAAAgAAAAcAAAA8AAAAAAAAAAVEVEFQAAAAAAAAABVNZXRlcmluZyBDZXJ0aWZpY2F0ZQAAAAAAAAABAAAAAAABAAgAAACQAAEAQGHic/IPbmLCKXxc/MH20X/RtjhXH4jfowBWsQE1QWgUUBPFId7HH65YuQJ5fxbQJCT6Hw0iHqKzaTkefrhIpOoAAAIAW+uRUsdaChtq/AMUI4qPlK2Bi4bwOyjJcSQWz16LAFfwibn5yHVDEgNA4cQ9lt3kS4drx7pCC+FR/YLlHBAV7ENFUlQAAAABAAAC/AAAAmwAAQABAAAAWMk5Z0ovo2X0b2C9K5PbFX8AAAAAAAAAAAAAAARTYd1EkpFovPAZUjOj2doDLnHiRSfYc89Fs7gosBfar/////8AAAAAAAAAAAAAAAAAAAAAAAEABQAAAAwAAAAAAAEABgAAAGAAAAABAAECAAAAAABb65FSx1oKG2r8AxQjio+UrYGLhvA7KMlxJBbPXosAV/CJufnIdUMSA0DhxD2W3eRLh2vHukIL4VH9guUcEBXsAAAAAgAAAAEAAAAMAAAABwAAAZgAAAAAAAAAgE1pY3Jvc29mdAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgFBsYXlSZWFkeSBTTDAgTWV0ZXJpbmcgUm9vdCBDQQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgDEuMC4wLjEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEACAAAAJAAAQBArAKJsEIDWNG5ulOgLvSUb8I2zZ0c5lZGYvpIO56Z0UNk/uC4Mq3jwXQUUN6m/48V5J/vuLDhWu740aRQc1dDDAAAAgCGTWHP8iVuQixWizwoABz7PhUnZYWEugUht5sYKNk23h2Cao/D5uf6epDVyilG8fZKLvufXc/+fkNOtEKT+sWr"
-    },
-    {
         "serverURL": "https://lic.staging.drmtoday.com/license-proxy-headerauth/drmtoday/RightsManager.asmx",
         "servertype" : "drmtoday",
-        "sessionTypes" : [ "temporary", "persistent-usage-record", "persistent-license" ],
+        "sessionTypes" : [ "temporary", "persistent-license" ],
         "merchant" : "w3c-eme-test",
         "secret" : drmtodaysecret
     } ],
@@ -148,12 +136,9 @@ const requestConstructors = {
         var url = config.serverURL;
         if (messageType === 'license-request') {
             url += "?";
-            if (sessionType === 'temporary' || sessionType === 'persistent-usage-record') {
+            if (sessionType === 'temporary') {
                 url += "UseSimpleNonPersistentLicense=1&";
             }
-            if (sessionType === 'persistent-usage-record') {
-                url += "SecureStop=1&";
-            }
             url += "PlayEnablers=B621D91F-EDCC-4035-8D4B-DC71760D43E9&";    // disable output protection
             url += "ContentKey=" + btoa(String.fromCharCode.apply(null, content.key));
         }
diff --git a/tests/wpt/tests/fedcm/fedcm-multi-idp/fedcm-too-many-idps.https.html b/tests/wpt/tests/fedcm/fedcm-multi-idp/fedcm-too-many-idps.https.html
new file mode 100644
index 00000000000..ad646910b64
--- /dev/null
+++ b/tests/wpt/tests/fedcm/fedcm-multi-idp/fedcm-too-many-idps.https.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<title>Federated Credential Management API: too many IDPs requested.</title>
+<link rel="help" href="https://fedidcg.github.io/FedCM">
+<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>
+
+<body>
+
+<script type="module">
+import {fedcm_test,
+        manifest_origin,
+        default_manifest_path} from '../support/fedcm-helper.sub.js';
+
+fedcm_test(async t => {
+  let providers = [];
+  for (let i = 0; i < 11; i++) {
+    providers.push({
+      configURL: `${manifest_origin}${default_manifest_path}?i=${i}`,
+      clientId: '1',
+      nonce: '2'
+    });
+  }
+  assert_throws_js(TypeError, navigator.credentials.get({
+    identity: {
+      providers: providers,
+    }
+  }));
+}, "Multi IDP FedCM call fails when too many IDPs are requested.");
+
+</script>
diff --git a/tests/wpt/tests/fenced-frame/history-length-outer-page-navigation-not-reflected-in-fenced-nested-iframe.https.html b/tests/wpt/tests/fenced-frame/history-length-outer-page-navigation-not-reflected-in-fenced-nested-iframe.https.html
new file mode 100644
index 00000000000..5bb727a34a7
--- /dev/null
+++ b/tests/wpt/tests/fenced-frame/history-length-outer-page-navigation-not-reflected-in-fenced-nested-iframe.https.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/utils.js"></script>
+<script src="resources/history-length-test-helper.js"></script>
+<script src="/common/utils.js"></script>
+<title>Test iframes in fenced frames can't see outer page history length</title>
+
+<body>
+<script>
+promise_test(async () => {
+  const kAssertionDesc =  "history.length Should never reflect the length " +
+                          "of joint session history that occured outside " +
+                          "of the fenced frame tree. history.length will " +
+                          "always return 1."
+
+  maybeNavigateForHistory();
+
+  const fenced_history_length_key = token();
+  const outer_page_ready_for_next_navigation_key = token();
+
+  // Append an iframe to the outer page for subsequent navigations within
+  // the iframe
+  const iframe = document.createElement('iframe');
+  const embed_scope_iframe = "outer_page::iframe";
+  iframe.src = generateURL("resources/history-length-outer-page-navigation-" +
+      "not-reflected-in-fenced-inner.html",
+      [fenced_history_length_key, outer_page_ready_for_next_navigation_key,
+       embed_scope_iframe, null]);
+  document.body.append(iframe);
+
+  await nextValueFromServer(outer_page_ready_for_next_navigation_key);
+
+  // Append a fenced frame to observe 'history.length' and report it back
+  // to the outer page
+  const embed_scope_fenced_frame = "outer_page::fenced_frame";
+  attachFencedFrame(generateURL(
+      "resources/history-length-outer-page-navigation-" +
+      "not-reflected-in-fenced-inner.html",
+      [fenced_history_length_key, outer_page_ready_for_next_navigation_key,
+       embed_scope_fenced_frame, "outer_page::fenced_frame::iframe"])
+  );
+
+  // Wait for the fenced frame to report 'history.length'
+  let result = await nextValueFromServer(fenced_history_length_key);
+  assert_equals(result, "PASS > " + " history.length: 1", kAssertionDesc);
+}, "history.length should not reflect navigations within outer page in " +
+  "an iframe nested within a fenced frame");
+</script>
+</body>
diff --git a/tests/wpt/tests/fenced-frame/history-length-outer-page-navigation-not-reflected-in-fenced.https.html b/tests/wpt/tests/fenced-frame/history-length-outer-page-navigation-not-reflected-in-fenced.https.html
index da643040316..818ed5f795a 100644
--- a/tests/wpt/tests/fenced-frame/history-length-outer-page-navigation-not-reflected-in-fenced.https.html
+++ b/tests/wpt/tests/fenced-frame/history-length-outer-page-navigation-not-reflected-in-fenced.https.html
@@ -2,41 +2,22 @@
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="resources/utils.js"></script>
+<script src="resources/history-length-test-helper.js"></script>
 <script src="/common/utils.js"></script>
-<title>history-length-outer-page-navigation-not-reflected-in-fenced</title>
+<title>Test fenced frames can't see outer page history length</title>
 
 <body>
 <script>
-const fenced_history_length_key = token();
-const outer_page_ready_for_next_navigation_key = token();
-
-async function runTest(embed_scope_reporting) {
+promise_test(async () => {
   const kAssertionDesc =  "history.length Should never reflect the length " +
                           "of joint session history that occured outside " +
                           "of the fenced frame tree. history.length will " +
                           "always return 1."
 
-  ////////////// BEGIN NAVIGATIONS
-  // This block performs a sequence of 'kNavigationLimit' navigations in:
-  // -- the outer page
-  const kNavigationLimit = 5
+  maybeNavigateForHistory();
 
-  const url = new URL(location.href);
-
-  // First, perform some real navigations as well as history.pushState to this
-  // same page. Normally this would increase `history.length`.
-  if (url.searchParams.get("navigationCount") == null)
-    url.searchParams.append("navigationCount", 1);
-
-  let navigationCount = parseInt(url.searchParams.get("navigationCount"));
-
-  if (navigationCount <= kNavigationLimit) {
-    url.searchParams.set('navigationCount', ++navigationCount);
-    location.href = url;
-    history.pushState({} , "");
-    return;
-  }
-  ////////////// END
+  const fenced_history_length_key = token();
+  const outer_page_ready_for_next_navigation_key = token();
 
   // Append an iframe to the outer page for subsequent navigations within
   // the iframe
@@ -57,22 +38,13 @@ async function runTest(embed_scope_reporting) {
       "resources/history-length-outer-page-navigation-" +
       "not-reflected-in-fenced-inner.html",
       [fenced_history_length_key, outer_page_ready_for_next_navigation_key,
-       embed_scope_fenced_frame, embed_scope_reporting])
+       embed_scope_fenced_frame, "outer_page::fenced_frame"])
   );
 
-  // Wait for the 'embed_scope_reporting' to report 'history.length'
+  // Wait for the fenced frame to report 'history.length'
   let result = await nextValueFromServer(fenced_history_length_key);
   assert_equals(result, "PASS > " + " history.length: 1", kAssertionDesc);
-}
-
-promise_test(async () => {
-  await runTest("outer_page::fenced_frame");
 }, "history.length should not reflect navigations within outer page in " +
   "fenced frame");
-
-promise_test(async () => {
-  await runTest("outer_page::fenced_frame::iframe");
-}, "history.length should not reflect navigations within outer page in " +
-  "fenced frame nexted iframe");
 </script>
 </body>
diff --git a/tests/wpt/tests/fenced-frame/resources/history-length-test-helper.js b/tests/wpt/tests/fenced-frame/resources/history-length-test-helper.js
new file mode 100644
index 00000000000..0dc2e37db9c
--- /dev/null
+++ b/tests/wpt/tests/fenced-frame/resources/history-length-test-helper.js
@@ -0,0 +1,23 @@
+// Perform real navigations as well as history.pushState navigations to the
+// loaded page until we reach the specified navigation limit. This will be the
+// first function that runs in the test, and will result in the test
+// reloading/restarting until we reach the desired history length.
+function maybeNavigateForHistory() {
+  const kNavigationLimit = 5
+
+  const url = new URL(location.href);
+
+  // First, perform some real navigations as well as history.pushState to this
+  // same page. Normally this would increase `history.length`.
+  if (url.searchParams.get("navigationCount") == null)
+    url.searchParams.append("navigationCount", 1);
+
+  let navigationCount = parseInt(url.searchParams.get("navigationCount"));
+
+  if (navigationCount <= kNavigationLimit) {
+    url.searchParams.set('navigationCount', ++navigationCount);
+    location.href = url;
+    history.pushState({} , "");
+    return;
+  }
+}
diff --git a/tests/wpt/tests/fetch/api/basic/WEB_FEATURES.yml b/tests/wpt/tests/fetch/api/basic/WEB_FEATURES.yml
new file mode 100644
index 00000000000..d6cd4adaeff
--- /dev/null
+++ b/tests/wpt/tests/fetch/api/basic/WEB_FEATURES.yml
@@ -0,0 +1,4 @@
+features:
+- name: fetch-request-streams
+  files:
+  - request-upload*
diff --git a/tests/wpt/tests/fetch/http-cache/heuristic.any.js b/tests/wpt/tests/fetch/http-cache/heuristic.any.js
index d8461318882..2bec1aa4c64 100644
--- a/tests/wpt/tests/fetch/http-cache/heuristic.any.js
+++ b/tests/wpt/tests/fetch/http-cache/heuristic.any.js
@@ -32,10 +32,33 @@ var tests = [
         ],
       },
       {
-        expected_type: "not_cached"
+        expected_type: "not_cached",
       }
     ]
-  }
+  },
+  {
+    name: "HTTP cache does not reuse a redirected response with no max-age and no Last-Modified header",
+    requests: [
+      {
+        response_status: [301, "Moved Permanently"],
+        response_headers: [
+          ["Cache-Control", "private"],
+          ["Location", "redirect_target"]
+        ],
+      },
+      { skip: true}, // Response to first redirect
+      {
+        response_status: [301, "Moved Permanently"],
+        response_headers: [
+          ["Cache-Control", "private"],
+          ["Location", "redirect_target"]
+        ],
+        expected_type: "not_cached",
+      },
+      { skip: true}, // response to second redirect
+    ],
+    check_count: true,
+  },
 ];
 
 function check_status(status) {
diff --git a/tests/wpt/tests/fetch/http-cache/http-cache.js b/tests/wpt/tests/fetch/http-cache/http-cache.js
index 19f1ca9b2bc..0ca5fcc2bc0 100644
--- a/tests/wpt/tests/fetch/http-cache/http-cache.js
+++ b/tests/wpt/tests/fetch/http-cache/http-cache.js
@@ -43,17 +43,25 @@ function makeTest (test) {
     var uuid = token()
     var requests = expandTemplates(test)
     var fetchFunctions = makeFetchFunctions(requests, uuid)
-    return runTest(fetchFunctions, requests, uuid)
+    return runTest(fetchFunctions, test, requests, uuid)
   }
 }
 
 function makeFetchFunctions(requests, uuid) {
     var fetchFunctions = []
     for (let i = 0; i < requests.length; ++i) {
+      var config = requests[i];
+      if (config.skip) {
+        // Skip request are ones that we expect the browser to make in
+        // response to a redirect. We don't fetch them again, but
+        // the server needs them in the config to be able to respond to
+        // them.
+        continue;
+      }
       fetchFunctions.push({
         code: function (idx) {
           var config = requests[idx]
-          var url = makeTestUrl(uuid, config)
+          var url = makeTestUrl(uuid, config);
           var init = fetchInit(requests, config)
           return fetch(url, init)
             .then(makeCheckResponse(idx, config))
@@ -71,7 +79,7 @@ function makeFetchFunctions(requests, uuid) {
     return fetchFunctions
 }
 
-function runTest(fetchFunctions, requests, uuid) {
+function runTest(fetchFunctions, test, requests, uuid) {
     var idx = 0
     function runNextStep () {
       if (fetchFunctions.length) {
@@ -93,7 +101,7 @@ function runTest(fetchFunctions, requests, uuid) {
       .then(function () {
         return getServerState(uuid)
       }).then(function (testState) {
-        checkRequests(requests, testState)
+        checkRequests(test, requests, testState)
         return Promise.resolve()
       })
 }
@@ -153,7 +161,7 @@ function makeCheckResponse (idx, config) {
     if ('expected_status' in config) {
       assert_equals(response.status, config.expected_status,
         `Response ${reqNum} status is ${response.status}, not ${config.expected_status}`)
-    } else if ('response_status' in config) {
+    } else if ('response_status' in config && config.response_status[0] != 301) {
       assert_equals(response.status, config.response_status[0],
         `Response ${reqNum} status is ${response.status}, not ${config.response_status[0]}`)
     } else {
@@ -197,7 +205,7 @@ function makeCheckResponseBody (config, uuid) {
   }
 }
 
-function checkRequests (requests, testState) {
+function checkRequests (test, requests, testState) {
   var testIdx = 0
   for (let i = 0; i < requests.length; ++i) {
     var expectedValidatingHeaders = []
@@ -225,6 +233,9 @@ function checkRequests (requests, testState) {
       })
     }
   }
+  if (test?.check_count && testState) {
+    assert_equals(requests.length, testState.length);
+  }
 }
 
 function pause () {
diff --git a/tests/wpt/tests/fetch/http-cache/split-cache.html b/tests/wpt/tests/fetch/http-cache/split-cache.html
index fe93d2e3400..c822abba3ac 100644
--- a/tests/wpt/tests/fetch/http-cache/split-cache.html
+++ b/tests/wpt/tests/fetch/http-cache/split-cache.html
@@ -128,7 +128,7 @@ function performFullTest(is_cross_site_test, load_resource_in_iframe, name) {
   function check_server_info() {
     return getServerState(uuid)
       .then(function (testState) {
-        checkRequests(local_requests, testState)
+        checkRequests(undefined, local_requests, testState)
         return Promise.resolve()
       })
   }
diff --git a/tests/wpt/tests/fledge/tentative/auction-config.https.window.js b/tests/wpt/tests/fledge/tentative/auction-config.https.window.js
index e32d8b31773..e0e27d23db2 100644
--- a/tests/wpt/tests/fledge/tentative/auction-config.https.window.js
+++ b/tests/wpt/tests/fledge/tentative/auction-config.https.window.js
@@ -601,12 +601,16 @@ subsetTest(promise_test, async test => {
     })
   };
 
-  // In the first auction, browserSignals.forDebuggingOnlyInCooldownOrLockout in
-  // generateBid() and scoreAd() should both be false. After the auction,
-  // lockout and cooldowns should be updated.
   await runBasicFledgeAuctionAndNavigate(test, uuid, auctionConfigOverrides);
-  await waitForObservedRequestsIgnoreDebugOnlyReports(
-      uuid, [bidderReportURL2, sellerReportURL2]);
+  // TODO(crbug.com/337186761) this causes the test being flaky.
+  // Note: In the first auction,
+  // browserSignals.forDebuggingOnlyInCooldownOrLockout in generateBid() and
+  // scoreAd() should both be false. But due to currently there's no way to
+  // clean up the lockout/cooldown DB tables after a test, so a rerun of this
+  // test will break this, and other tests that writes to these tables may also
+  // affect this test. So we cannot reliably check the signals being false.
+  // await waitForObservedRequestsIgnoreDebugOnlyReports(
+  //     uuid, [bidderReportURL2, sellerReportURL2]);
 
   // In the second auction, browserSignals.forDebuggingOnlyInCooldownOrLockout
   // in generateBid() and scoreAd() should both be true, since both the buyer
diff --git a/tests/wpt/tests/fledge/tentative/cross-origin-embedder-policy.https.window.js b/tests/wpt/tests/fledge/tentative/cross-origin-embedder-policy.https.window.js
new file mode 100644
index 00000000000..09a89e2009d
--- /dev/null
+++ b/tests/wpt/tests/fledge/tentative/cross-origin-embedder-policy.https.window.js
@@ -0,0 +1,39 @@
+// META: script=/resources/testdriver.js
+// META: script=/resources/testdriver-vendor.js
+// META: script=/common/utils.js
+// META: script=resources/fledge-util.sub.js
+// META: timeout=long
+
+"use strict";
+
+promise_test(async test => {
+  const uuid = generateUuid(test);
+
+  let otherWindow = await createTopLevelWindow(test, OTHER_ORIGIN1);
+
+  // Join a cross-origin InterestGroup in a top-level window navigated to its origin.
+  // Has to be top-level to avoid being subject to the Cross-Origin-Embedder-Policy
+  // of this page.
+  await runInFrame(test, otherWindow,
+      `await joinInterestGroup(test_instance, "${uuid}");`);
+
+  // Run an auction in this frame using the other origin as a bidder. The bidding
+  // script load should not be blocked by the COEP that blocks cross-origin
+  // resources.
+  await runBasicFledgeTestExpectingWinner(
+    test, uuid,
+    { interestGroupBuyers: [OTHER_ORIGIN1] });
+}, 'COEP does not block bidder scripts.');
+
+promise_test(async test => {
+  const uuid = generateUuid(test);
+
+  // Run an auction with a cross-origin seller script, it should not be blocked
+  // by COEP.
+  await joinGroupAndRunBasicFledgeTestExpectingWinner(
+    test,
+    { uuid,
+      auctionConfigOverrides : {seller: OTHER_ORIGIN1,
+        decisionLogicURL: createDecisionScriptURL(uuid, { origin: OTHER_ORIGIN1 })
+    }});
+}, 'COEP does not block seller scripts.');
diff --git a/tests/wpt/tests/fledge/tentative/cross-origin-embedder-policy.https.window.js.headers b/tests/wpt/tests/fledge/tentative/cross-origin-embedder-policy.https.window.js.headers
new file mode 100644
index 00000000000..20319c1b02d
--- /dev/null
+++ b/tests/wpt/tests/fledge/tentative/cross-origin-embedder-policy.https.window.js.headers
@@ -0,0 +1 @@
+Cross-Origin-Embedder-Policy: require-corp
\ No newline at end of file
diff --git a/tests/wpt/tests/fledge/tentative/get-interest-group-auction-data.https.window.js b/tests/wpt/tests/fledge/tentative/get-interest-group-auction-data.https.window.js
index de749e1e60a..2f2fb390dec 100644
--- a/tests/wpt/tests/fledge/tentative/get-interest-group-auction-data.https.window.js
+++ b/tests/wpt/tests/fledge/tentative/get-interest-group-auction-data.https.window.js
@@ -573,6 +573,55 @@ subsetTest(promise_test, async test => {
   assert_equals(decoded.message.interestGroups[OTHER_ORIGIN4][0].name, 'o4');
 }, 'getInterestGroupAdAuctionData() with multiple buyers');
 
+subsetTest(promise_test, async test => {
+  const uuid = generateUuid(test);
+
+  let renderURL = createRenderURL(uuid);
+  let bidderDebugReportURL =
+      createBidderReportURL(uuid, /*id=*/ 'forDebuggingOnly');
+
+  let biddingLogicURL = createBiddingScriptURL({
+    generateBid: `
+        forDebuggingOnly.reportAdAuctionWin('${bidderDebugReportURL}');
+        return {bid: 1, render: '${renderURL}'};`
+  });
+
+  await Promise.all([
+    joinInterestGroup(
+        test, uuid,
+        {name: 'o1', ads: [{renderURL: renderURL}], biddingLogicURL}),
+    joinInterestGroup(
+        test, uuid,
+        {name: 'o2', ads: [{renderURL: renderURL}], biddingLogicURL})
+  ]);
+
+  // Run an auction to put the origin to cooldown, or lockout.
+  await runBasicFledgeAuctionAndNavigate(test, uuid);
+
+  const result = await navigator.getInterestGroupAdAuctionData({
+    coordinatorOrigin: await BA.configureCoordinator(),
+    seller: window.location.origin
+  });
+  assert_true(result.requestId !== null);
+  assert_true(result.request.length > 0);
+
+  let decoded = await BA.decodeInterestGroupData(result.request);
+  assert_equals(decoded.message.version, 0);
+  assert_equals(decoded.message.publisher, window.location.hostname);
+  assert_equals(typeof decoded.message.generationId, 'string');
+
+  assert_equals(
+      decoded.message.interestGroups[window.location.origin].length, 2);
+  assert_equals(
+      decoded.message.interestGroups[window.location.origin][0]
+          .inCooldownOrLockout,
+      true);
+  assert_equals(
+      decoded.message.interestGroups[window.location.origin][1]
+          .inCooldownOrLockout,
+      true);
+}, 'getInterestGroupAdAuctionData() InCooldownOrLockout in each IG');
+
 subsetTest(promise_test, async test => {
   const uuid = generateUuid(test);
 
@@ -661,7 +710,7 @@ subsetTest(promise_test, async test => {
   assert_true(result.requestId !== null);
   assert_own_property(result, 'requests');
   assert_equals(result.requests.length, 1);
-  validateForSeller(result.requests[0], window.location.origin);
+  await validateForSeller(result.requests[0], window.location.origin);
 }, 'getInterestGroupAdAuctionData() multi-seller with single seller');
 
 subsetTest(promise_test, async test => {
diff --git a/tests/wpt/tests/fledge/tentative/kanon-status-not-calculated.https.window.js b/tests/wpt/tests/fledge/tentative/kanon-status-not-calculated.https.window.js
deleted file mode 100644
index 965082d8ffd..00000000000
--- a/tests/wpt/tests/fledge/tentative/kanon-status-not-calculated.https.window.js
+++ /dev/null
@@ -1,21 +0,0 @@
-// META: script=/resources/testdriver.js
-// META: script=/resources/testdriver-vendor.js
-// META: script=/common/utils.js
-// META: script=resources/fledge-util.sub.js
-// META: script=/common/subset-tests.js
-
-"use strict";
-
-subsetTest(promise_test, async test => {
-    const uuid = generateUuid(test);
-    await runReportTest(
-        test, uuid,
-        { reportWinSuccessCondition:
-            `browserSignals.kAnonStatus === "notCalculated"`,
-          reportWin:
-            `sendReportTo('${createBidderReportURL(uuid)}');` },
-        // expectedReportURLs:
-        [createBidderReportURL(uuid)]);
-    },
-    'Check kAnonStatus is "notCalculated" when FledgeConsiderKAnonymity' +
-    'and FledgeEnforceKAnonymity are both disabled');
diff --git a/tests/wpt/tests/focus/focus-double-sync-calls.tentative.html b/tests/wpt/tests/focus/focus-double-sync-calls.tentative.html
new file mode 100644
index 00000000000..6dbfa71e735
--- /dev/null
+++ b/tests/wpt/tests/focus/focus-double-sync-calls.tentative.html
@@ -0,0 +1,42 @@
+<!doctype html>
+<head>
+  <meta charset=utf-8>
+  <meta name="viewport" content="width=device-width,initial-scale=1">
+  <title>Test calling focus() in "focus" event listener when focus has moved away</title>
+  <script src=/resources/testharness.js></script>
+  <script src=/resources/testharnessreport.js></script>
+</head>
+<body>
+  <input id="input1" placeholder="input1"/>
+  <input id="input2" placeholder="input2"/>
+</body>
+<script>
+// Tentative due to https://github.com/whatwg/html/issues/11177
+
+// This test tests calling focus() in the "focus" event
+// listener on the element again when the focus has
+// moved away.
+promise_test((t) => {
+  let previouslyCalled = false;
+  let counter = 0;
+  let p = new Promise(r=>{
+    input1.addEventListener("focus", function(e) {
+      counter++;
+      if (!previouslyCalled) {
+        input2.focus();
+        previouslyCalled = true;
+      }
+      input1.focus();
+
+      // In a success run, counter can only be 2 here
+      // because focus() synchronously fire the event listener.
+      if (counter == 2) {
+        r();
+      }
+    });
+  });
+
+  input1.focus();
+  return p;
+}, "Element.focus() in focus listener when focus has moved away");
+</script>
diff --git a/tests/wpt/tests/geolocation/watchposition-timeout.https.window.js b/tests/wpt/tests/geolocation/watchposition-timeout.https.window.js
new file mode 100644
index 00000000000..fc1edd6ea95
--- /dev/null
+++ b/tests/wpt/tests/geolocation/watchposition-timeout.https.window.js
@@ -0,0 +1,22 @@
+// META: script=/resources/testdriver.js
+// META: script=/resources/testdriver-vendor.js
+
+promise_setup(async () => {
+  await test_driver.set_permission({ name: "geolocation" }, "granted");
+});
+
+promise_test(async (t) => {
+  let timeoutCount = 0;
+
+  // This may still succeed without timeout in case there's a cache.
+  const watchId = navigator.geolocation.watchPosition(() => {}, (error) => {
+    if (error.code === GeolocationPositionError.TIMEOUT) {
+      ++timeoutCount;
+    }
+  }, { timeout: 1 });
+  t.add_cleanup(() => navigator.geolocation.clearWatch(watchId));
+
+  await new Promise(r => setTimeout(r, 100));
+
+  assert_true(timeoutCount < 2, "At most one timeout should have been seen");
+}, "Passing timeout=1 should not cause multiple timeout errors");
diff --git a/tests/wpt/tests/html-aam/figure-name-no-figcaption.tentative.html b/tests/wpt/tests/html-aam/figure-name-no-figcaption.tentative.html
new file mode 100644
index 00000000000..f75074efb6b
--- /dev/null
+++ b/tests/wpt/tests/html-aam/figure-name-no-figcaption.tentative.html
@@ -0,0 +1,75 @@
+<!doctype html>
+<html>
+<head>
+  <title>HTML-AAM Figure Element Accessible Name From Author Tests</title>
+  <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>
+  <script src="/resources/testdriver-actions.js"></script>
+  <script src="/wai-aria/scripts/aria-utils.js"></script>
+</head>
+<body>
+
+
+<p>Tests the accName for elements defined in <a href="https://w3c.github.io/html-aam/#accessible-name-and-description-computation">HTML-AAM: Accessible Name Computations By HTML Element</a>.
+  These tests are meant to show whether an element returns a name per the naming mechanism used. See <a href="https://wpt.fyi/results/accname">wpt: accname</a> for expanded accName testing.</p>
+
+
+<!--
+The following test can be added to names.html along with the other figure naming tests when the file is no longer considered tentative.
+-->
+
+<h2>figure element</h2>
+<figure data-testname="figure with figcaption - no name" data-expectedlabel="" class="ex">
+  x
+  <figcaption>y</figcaption>
+</figure>
+
+<figure data-testname="figure with figcaption and aria-label" aria-label="label" data-expectedlabel="label" class="ex">
+  x
+  <figcaption>y</figcaption>
+</figure>
+
+<figure data-testname="figure with figcaption and aria-labelledby pointing to another element" aria-labelledby="labelledby" data-expectedlabel="labelledby" class="ex">
+  x
+  <figcaption>y</figcaption>
+</figure>
+
+<figure data-testname="figure with aria-labelledby pointing to figcaption" aria-labelledby="fctest" data-expectedlabel="figcaption text" class="ex">
+  x
+  <figcaption id=fctest>figcaption text</figcaption>
+</figure>
+
+<figure data-testname="figure with figcaption and title" title="title" data-expectedlabel="title" class="ex">
+  x
+  <figcaption>y</figcaption>
+</figure>
+
+<figure data-testname="figure with figcaption and img without alt" data-expectedlabel="" class="ex">
+  <img src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" data-testname="img without alt within a figure with figcaption" data-expectedlabel="figcaption" class="ex">
+  <figcaption>figcaption</figcaption>
+</figure>
+
+<figure>
+  <img src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" data-testname="img without alt but with title within a figure with figcaption" title="title" data-expectedlabel="title" class="ex">
+  <figcaption>figcaption</figcaption>
+</figure>
+
+<!-- as there is content in the figure beyond just the img without alt and whitespace, then the figcaption applies to all content and not just the img, so it does not become the img's accname -->
+<figure>
+  <img src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" data-testname="img without alt within a figure with figcaption, and with other flow content within the figure" data-expectedlabel="" class="ex">
+  other content
+  <figcaption>figcaption</figcaption>
+</figure>
+
+
+<!-- element to reference for aria-labelledby tests -->
+<div id="labelledby">labelledby</div>
+
+<script>
+AriaUtils.verifyLabelsBySelector(".ex");
+</script>
+
+</body>
+</html>
diff --git a/tests/wpt/tests/html/canvas/resources/canvas-promise-test.js b/tests/wpt/tests/html/canvas/resources/canvas-promise-test.js
index 09e01633ace..afcbec9a6d5 100644
--- a/tests/wpt/tests/html/canvas/resources/canvas-promise-test.js
+++ b/tests/wpt/tests/html/canvas/resources/canvas-promise-test.js
@@ -19,10 +19,11 @@
  * Enum listing all test types emitted by `canvasPromiseTest()`.
  */
 const CanvasTestType = Object.freeze({
-  HTML:   Symbol("html"),
-  DETACHED_HTML:   Symbol("detached_html"),
-  OFFSCREEN:  Symbol("offscreen"),
-  WORKER: Symbol("worker")
+  HTML:   Symbol('html'),
+  DETACHED_HTML:   Symbol('detached_html'),
+  OFFSCREEN:  Symbol('offscreen'),
+  PLACEHOLDER: Symbol('placeholder'),
+  WORKER: Symbol('worker')
 });
 
 ALL_CANVAS_TEST_TYPES = Object.values(CanvasTestType);
@@ -43,6 +44,7 @@ MAIN_THREAD_CANVAS_TEST_TYPES = [
     CanvasTestType.HTML,
     CanvasTestType.DETACHED_HTML,
     CanvasTestType.OFFSCREEN,
+    CanvasTestType.PLACEHOLDER,
 ];
 WORKER_CANVAS_TEST_TYPES = [
     CanvasTestType.WORKER,
@@ -99,6 +101,18 @@ function canvasPromiseTest(
                                 {canvasType: CanvasTestType.OFFSCREEN}),
                  'OffscreenCanvas: ' + description);
   }
+
+  if (testTypes.includes(CanvasTestType.PLACEHOLDER)) {
+    promise_test(async () => {
+      if (!document.body) {
+        document.documentElement.appendChild(document.createElement("body"));
+      }
+      const placeholder = document.createElement('canvas');
+      document.body.appendChild(placeholder);
+      await testBody(placeholder.transferControlToOffscreen(),
+                     {canvasType: CanvasTestType.PLACEHOLDER});
+    }, 'PlaceholderCanvas: ' + description);
+  }
 }
 
 /**
diff --git a/tests/wpt/tests/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html b/tests/wpt/tests/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html
index 9be5f9baa6d..96f5c8e77b2 100644
--- a/tests/wpt/tests/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html
+++ b/tests/wpt/tests/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html
@@ -197,4 +197,21 @@ test(t => {
   div.addEventListener('beforematch', t.unreached_func('beforematch should not be fired without hidden=until-found.'));
   window.location.hash = '#target';
 }, 'Verifies that the beforematch event is not fired on elements without hidden=until-found.');
+
+test(t => {
+  window.location.hash = '';
+  const div = document.createElement('div');
+  div.id = 'target';
+  div.textContent = 'target';
+  div.hidden = 'until-found';
+  document.body.appendChild(div);
+  t.add_cleanup(() => div.remove());
+
+  let hiddenAttributeSet = false;
+  div.addEventListener('beforematch', () => {
+    hiddenAttributeSet = div.hasAttribute('hidden');
+  });
+  window.location.hash = '#target';
+  assert_true(hiddenAttributeSet);
+}, 'The hidden attribute should still be set inside the beforematch event handler.');
 </script>
diff --git a/tests/wpt/tests/html/editing/the-hidden-attribute/beforematch-scroll-to-text-fragment.html b/tests/wpt/tests/html/editing/the-hidden-attribute/beforematch-scroll-to-text-fragment.html
index 618493addea..d7bdcff755c 100644
--- a/tests/wpt/tests/html/editing/the-hidden-attribute/beforematch-scroll-to-text-fragment.html
+++ b/tests/wpt/tests/html/editing/the-hidden-attribute/beforematch-scroll-to-text-fragment.html
@@ -1,5 +1,6 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
+<meta name=timeout content=long>
 <title>beforematch fired on ScrollToTextFragment</title>
 <link rel="author" title="Joey Arhar" href="mailto:jarhar@chromium.org">
 <link rel="help" href="https://html.spec.whatwg.org/multipage/interaction.html#the-hidden-attribute:event-beforematch">
@@ -12,57 +13,65 @@
 <script src="/scroll-to-text-fragment/stash.js"></script>
 
 <script>
-promise_test(t => new Promise((resolve, reject) => {
-  const key = token();
-  test_driver.bless('Open a scroll to text fragment URL', () => {
-    window.open(
-      `resources/beforematch-scroll-to-text-fragment-basic.html?key=${key}#:~:text=foo`,
-      '_blank',
-      'noopener');
+async function fetchResultsNoResolver(key) {
+  return new Promise((resolve, reject) => {
+    fetchResults(key, resolve, reject);
   });
-  fetchResults(key, resolve, reject);
-}).then(results => {
-  assert_equals(results.pageYOffsetDuringBeforematch, 0,
-    'Scrolling should happen after beforematch is fired.');
+}
+
+promise_test(async () => {
+  const key = token();
+  await test_driver.bless('Open a scroll to text fragment URL');
+  window.open(
+    `resources/beforematch-scroll-to-text-fragment-basic.html?key=${key}#:~:text=foo`,
+    '_blank',
+    'noopener');
+  const results = await fetchResultsNoResolver(key);
   assert_true(results.beforematchFiredOnFoo,
     'Foo was searched for, so it should get a beforematch event.');
   assert_false(results.beforematchFiredOnBar,
     'Bar was not searched for, so it should not get a beforematch event.');
+  assert_equals(results.pageYOffsetDuringBeforematch, 0,
+    'Scrolling should happen after beforematch is fired.');
   assert_true(results.pageYOffsetAfterRaf > 0,
     'The page should be scrolled down to foo.');
-}), 'Verifies that the beforematch event is fired on the matching element of a ScrollToTextFragment navigation.');
+  assert_true(results.beforematchHiddenAttributePresent,
+    'The hidden attribute should be set inside the beforematch event handler.');
+}, 'Verifies that the beforematch event is fired on the matching element of a ScrollToTextFragment navigation.');
 
-promise_test(t => new Promise((resolve, reject) => {
+promise_test(async () => {
   const key = token();
-  test_driver.bless('Open a scroll to text fragment URL', () => {
-    window.open(
-      `resources/beforematch-scroll-to-text-fragment-with-anchor.html?key=${key}#:~:text=foo`,
-      '_blank',
-      'noopener');
-  });
-  fetchResults(key, resolve, reject);
-}).then(results => {
+  await test_driver.bless('Open a scroll to text fragment URL');
+  window.open(
+    `resources/beforematch-scroll-to-text-fragment-with-anchor.html?key=${key}#bar:~:text=foo`,
+    '_blank',
+    'noopener');
+  const results = await fetchResultsNoResolver(key);
+  assert_true(results.fooHasHiddenAttribute,
+    'hidden=until-found revealing should not happen until after the script tag loads.');
   assert_true(results.beforematchFiredOnFoo,
     'foo was searched for, so it should get the beforematch event.');
   assert_false(results.beforematchFiredOnBar,
     'bar should not get the beforematch event despite being the target of an element fragment due to the text fragment.');
-}), 'Verifies that beforematch is only fired on elements targeted by a text fragment when there is both a text fragment and an element fragment.');
+  assert_equals(results.pageYOffsetDuringBeforematch, 0,
+    'Scrolling should happen after beforematch is fired.');
+  assert_true(results.pageYOffsetAfterRaf > 0,
+    'The page should be scrolled down to foo.');
+}, 'Verifies that beforematch is only fired on elements targeted by a text fragment when there is both a text fragment and an element fragment.');
 
-promise_test(t => new Promise((resolve, reject) => {
+promise_test(async () => {
   const key = token();
-  test_driver.bless('Open a scroll to text fragment URL', () => {
-    window.open(
-      `resources/beforematch-scroll-to-text-fragment-bubble.html?key=${key}#:~:text=foo`,
-      '_blank',
-      'noopener');
-  });
-  fetchResults(key, resolve, reject);
-}).then(results => {
+  await test_driver.bless('Open a scroll to text fragment URL');
+  window.open(
+    `resources/beforematch-scroll-to-text-fragment-bubble.html?key=${key}#:~:text=foo`,
+    '_blank',
+    'noopener');
+  const results = await fetchResultsNoResolver(key);
   assert_true(results.beforematchFiredOnChild,
     'The element containing the searched text should have beforematch fired on it.');
   assert_true(results.beforematchFiredOnParent,
     'The parent element of the element containing the matching text should have the beforematch event fired on it because the event should bubble.');
-}), 'Verifies that the beforematch event bubbles with scroll to text fragment.');
+}, 'Verifies that the beforematch event bubbles with scroll to text fragment.');
 
 // TODO(jarhar): Write more tests here once we decide on a behavior here: https://github.com/WICG/display-locking/issues/150
 </script>
diff --git a/tests/wpt/tests/html/editing/the-hidden-attribute/hidden-ua-stylesheet.html b/tests/wpt/tests/html/editing/the-hidden-attribute/hidden-ua-stylesheet.html
index 913ecc037cf..0fde9ea753f 100644
--- a/tests/wpt/tests/html/editing/the-hidden-attribute/hidden-ua-stylesheet.html
+++ b/tests/wpt/tests/html/editing/the-hidden-attribute/hidden-ua-stylesheet.html
@@ -28,7 +28,10 @@ function testCVHidden(description) {
         `${description} should not affect the div's display property.`);
     assert_equals(getComputedStyle(div).contentVisibility, 'hidden',
         `${description} should make the div content-visibility:hidden.`);
+    assert_equals(div.hidden, "until-found",
+      `${description} should make the div hidden=until-found.`);
   }, description);
+
 }
 
 function testNormal(description) {
diff --git a/tests/wpt/tests/html/editing/the-hidden-attribute/hidden-until-found-002.html b/tests/wpt/tests/html/editing/the-hidden-attribute/hidden-until-found-002.html
index e947274bedb..0f3dcb1ffb2 100644
--- a/tests/wpt/tests/html/editing/the-hidden-attribute/hidden-until-found-002.html
+++ b/tests/wpt/tests/html/editing/the-hidden-attribute/hidden-until-found-002.html
@@ -21,7 +21,7 @@
 
 <script>
 async_test((t) => {
-  const tab = "\t";
+  const tab = "\ue004";
   async function step1() {
     await test_driver.send_keys(document.body, tab);
     t.step(() => {
diff --git a/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-basic.html b/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-basic.html
index 884e9a67fae..9918b7c29f8 100644
--- a/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-basic.html
+++ b/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-basic.html
@@ -3,46 +3,61 @@
 
 <!-- This test is navigated to with the fragment #:~:text=foo -->
 
-<body>
-  <div style="height: 4000px;">spacer</div>
-  <script>
-    const results = {};
+<div style="height: 4000px;">spacer</div>
 
-    const foo = document.createElement('div');
-    foo.textContent = 'foo';
-    foo.hidden = 'until-found';
-    document.body.appendChild(foo);
-    window.beforematchFiredOnFoo = false;
-    foo.addEventListener('beforematch', () => {
-      // This should be zero. Scrolling should happen after beforematch is
-      // fired.
-      results.pageYOffsetDuringBeforematch = window.pageYOffset;
-      window.beforematchFiredOnFoo = true;
-    });
+<script>
+(async () => {
+  const results = {};
+  const key = (new URLSearchParams(window.location.search)).get('key');
 
-    const bar = document.createElement('div');
-    bar.textContent = 'bar';
-    document.body.appendChild(bar);
-    window.beforematchFiredOnBar = false;
-    bar.addEventListener('beforematch', () => {
-      window.beforematchFiredOnBar = true;
-    });
+  // This test adds the elements from JS
+  // (unlike beforematch-scroll-to-text-fragment-with-anchor.html,
+  // which uses parser-created elements)
+  const foo = document.createElement('div');
+  foo.hidden = 'until-found';
+  foo.textContent = 'foo';
+  document.body.appendChild(foo);
 
-    requestAnimationFrame(() => {
-      requestAnimationFrame(async () => {
-        // This should be true. Foo was searched for, so it should get a
-        // beforematch event.
-        results.beforematchFiredOnFoo = window.beforematchFiredOnFoo;
-        // This should be false. Bar was not searched for, so it should not get
-        // a beforematch event.
-        results.beforematchFiredOnBar = window.beforematchFiredOnBar;
-        // This should be greater than zero. The page should be scrolled down
-        // to foo.
-        results.pageYOffsetAfterRaf = window.pageYOffset;
+  let beforematchResolver = null;
+  const beforematchPromise = new Promise(resolve => {
+    beforematchResolver = resolve;
+  });
 
-        params = new URLSearchParams(window.location.search);
-        stashResultsThenClose(params.get('key'), results);
-      });
-    });
-  </script>
-</body>
+  // This should be true. Foo was searched for, so it should get a
+  // beforematch event.
+  results.beforematchFiredOnFoo = false;
+  // This should be true. the hidden attribute should not be removed until
+  // after beforematch is fired.
+  results.beforematchHiddenAttributePresent = false;
+  foo.addEventListener('beforematch', () => {
+    results.beforematchFiredOnFoo = true;
+    results.beforematchHiddenAttributePresent = foo.hasAttribute('hidden');
+    // This should be zero. Scrolling should happen after beforematch is
+    // fired.
+    results.pageYOffsetDuringBeforematch = window.pageYOffset;
+    beforematchResolver();
+  });
+
+  const bar = document.createElement('div');
+  bar.hidden = 'until-found';
+  bar.textContent = 'bar';
+  document.body.appendChild(bar);
+  // This should be false. Bar was not searched for, so it should not get
+  // a beforematch event.
+  results.beforematchFiredOnBar = false;
+  bar.addEventListener('beforematch', () => {
+    // this handler should never run. If it does,
+    // send back the message immediately to make the test fail.
+    results.beforematchFiredOnBar = true;
+    stashResultsThenClose(key, results);
+  });
+
+  await beforematchPromise;
+  await new Promise(requestAnimationFrame);
+  await new Promise(requestAnimationFrame);
+  // This should be greater than zero. The page should be scrolled down
+  // to foo.
+  results.pageYOffsetAfterRaf = window.pageYOffset;
+  stashResultsThenClose(key, results);
+})();
+</script>
diff --git a/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-bubble.html b/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-bubble.html
index abfe8ddd544..3b196cd887a 100644
--- a/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-bubble.html
+++ b/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-bubble.html
@@ -8,23 +8,30 @@
 </div>
 
 <script>
+(async () => {
   const results = {
     beforematchFiredOnChild: false,
     beforematchFiredOnParent: false
   };
 
+  let beforematchResolver = null;
+  const beforematchPromise = new Promise(resolve => {
+    beforematchResolver = resolve;
+  });
+
   childid.addEventListener('beforematch', () => {
     results.beforematchFiredOnChild = true;
+    beforematchResolver();
   });
 
   parentid.addEventListener('beforematch', () => {
     results.beforematchFiredOnParent = true;
   });
 
-  requestAnimationFrame(() => {
-    requestAnimationFrame(() => {
-      const params = new URLSearchParams(window.location.search);
-      stashResultsThenClose(params.get('key'), results);
-    });
-  });
+  await beforematchPromise;
+  await new Promise(requestAnimationFrame);
+  await new Promise(requestAnimationFrame);
+  const params = new URLSearchParams(window.location.search);
+  stashResultsThenClose(params.get('key'), results);
+})();
 </script>
diff --git a/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-with-anchor.html b/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-with-anchor.html
index 3506c6e60ca..fd000d41199 100644
--- a/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-with-anchor.html
+++ b/tests/wpt/tests/html/editing/the-hidden-attribute/resources/beforematch-scroll-to-text-fragment-with-anchor.html
@@ -3,34 +3,59 @@
 
 <!-- This test is navigated to with the fragment #bar:~:text=foo -->
 
-<body>
-  <div id=foo hidden=until-found>foo</div>
-  <div id=bar hidden=until-found>bar</div>
-  <script>
-    window.beforematchFiredOnFoo = false;
-    foo.addEventListener('beforematch', () => {
-      window.beforematchFiredOnFoo = true;
-    });
+<!-- This test uses parser-created elements,
+  unlike beforematch-scroll-to-text-fragment-basic.html,
+  which adds them from JS -->
+<div style="height:10000px"></div>
+<div id=foo hidden=until-found>foo</div>
+<div id=bar hidden=until-found>bar</div>
 
-    window.beforematchFiredOnBar = false;
-    bar.addEventListener('beforematch', () => {
-      window.beforematchFiredOnBar = true;
-    });
+<script>
+(async () => {
+  const results = {};
+  const key = (new URLSearchParams(window.location.search)).get('key');
 
-    requestAnimationFrame(() => {
-      requestAnimationFrame(() => {
-        const results = {};
-        // This should be true. Foo was searched for, so it should get the
-        // beforematch event.
-        results.beforematchFiredOnFoo = window.beforematchFiredOnFoo;
-        // This should be false. Bar should not get the beforematch event
-        // despite being the target of an element fragment due to the text
-        // fragment.
-        results.beforematchFiredOnBar = window.beforematchFiredOnBar;
+  // This should be true. hidden=until-found revealing should not happen until
+  // after the script tag loads.
+  results.fooHasHiddenAttribute = foo.hasAttribute('hidden');
 
-        params = new URLSearchParams(window.location.search);
-        stashResultsThenClose(params.get('key'), results);
-      });
-    });
-  </script>
-</body>
+  let beforematchResolver = null;
+  const beforematchPromise = new Promise(resolve => {
+    beforematchResolver = resolve;
+  });
+
+  // This should be true. Foo was searched for, so it should get the
+  // beforematch event.
+  results.beforematchFiredOnFoo = false;
+  foo.addEventListener('beforematch', () => {
+    results.beforematchFiredOnFoo = true;
+    // This should be zero. Scrolling should happen after beforematch is fired.
+    results.pageYOffsetDuringBeforematch = window.pageYOffset;
+    beforematchResolver();
+  });
+
+  // This should be false. Bar should not get the beforematch event
+  // despite being the target of an element fragment due to the text
+  // fragment.
+  results.beforematchFiredOnBar = false;
+  bar.addEventListener('beforematch', () => {
+    // this handler should never run. If it does,
+    // send back the message immediately to make the test fail.
+    results.beforematchFiredOnBar = true;
+    stashResultsThenClose(key, results);
+  });
+
+  if (!results.fooHasHiddenAttribute) {
+    // No need to wait for the beforematch event if it will never come.
+    stashResultsThenClose(key, results);
+  } else {
+    await beforematchPromise;
+    await new Promise(requestAnimationFrame);
+    await new Promise(requestAnimationFrame);
+    // This should be greater than zero. Scrolling should happen after the
+    // beforematch event handler.
+    results.pageYOffsetAfterRaf = window.pageYOffset;
+    stashResultsThenClose(key, results);
+  }
+})();
+</script>
diff --git a/tests/wpt/tests/html/editing/the-hidden-attribute/resources/hidden-until-found-text-fragment.html b/tests/wpt/tests/html/editing/the-hidden-attribute/resources/hidden-until-found-text-fragment.html
index fe89b407e65..b765c07f277 100644
--- a/tests/wpt/tests/html/editing/the-hidden-attribute/resources/hidden-until-found-text-fragment.html
+++ b/tests/wpt/tests/html/editing/the-hidden-attribute/resources/hidden-until-found-text-fragment.html
@@ -7,19 +7,28 @@
   <div style="height: 4000px;">spacer</div>
   <div id=target hidden=until-found>foo</div>
   <script>
-    requestAnimationFrame(() => {
+    // scroll-to-text-fragment may delay scrolling for an
+    // arbitrary amount of time for security reasons.
+    // This test would time out if beforematch is not fired, but since the
+    // test file only has one test, this is not shadowing other test results.
+    target.onbeforematch = () => {
+      // Adding two additional requestAnimationFrames ensures
+      // that scrolling has happened after beforematch has fired.
       requestAnimationFrame(() => {
-        const results = {};
-        // This should be false. The hidden=until-found attribute should be
-        // removed in response to ScrollToTextFragment.
-        results.targetHasHiddenAttribute = document.getElementById('target').hasAttribute('hidden');
-        // This should be greater than zero. The page should be scrolled down
-        // to foo.
-        results.pageYOffsetAfterRaf = window.pageYOffset;
+        requestAnimationFrame(() => {
+          const results = {};
+          // This should be false. The hidden=until-found attribute should be
+          // removed in response to ScrollToTextFragment.
+          results.targetHasHiddenAttribute = document.getElementById('target').hasAttribute('hidden');
+          // This should be greater than zero. The page should be scrolled down
+          // to foo.
+          results.pageYOffsetAfterRaf = window.pageYOffset;
 
-        params = new URLSearchParams(window.location.search);
-        stashResultsThenClose(params.get('key'), results);
+          params = new URLSearchParams(window.location.search);
+          stashResultsThenClose(params.get('key'), results);
+
+        });
       });
-    });
+    };
   </script>
 </body>
diff --git a/tests/wpt/tests/html/obsolete/requirements-for-implementations/other-elements-attributes-and-apis/document-applets.html b/tests/wpt/tests/html/obsolete/requirements-for-implementations/other-elements-attributes-and-apis/document-applets.html
new file mode 100644
index 00000000000..493e75262e6
--- /dev/null
+++ b/tests/wpt/tests/html/obsolete/requirements-for-implementations/other-elements-attributes-and-apis/document-applets.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<title>document.applets</title>
+<link rel="help" href="https://html.spec.whatwg.org/C/#dom-document-applets">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<object></object>
+<object type="application/x-java-applet"></object>
+<object type="application/x-java-bean"></object>
+<object type="application/x-java-vm"></object>
+<object><param name="type" value="application/x-java-applet" /></object>
+<object><param name="type" value="application/x-java-bean" /></object>
+<object><param name="type" value="application/x-java-vm" /></object>
+
+<script>
+test(() => {
+  const collection = document.applets;
+  assert_true(collection instanceof HTMLCollection);
+  assert_equals(collection.length, 0, 'The collection should be empty.');
+}, 'document.applets should return an empty collection.');
+</script>
diff --git a/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-background-print-ref.html b/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-background-print-ref.html
index 3aa0abd3207..a386cbb7e32 100644
--- a/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-background-print-ref.html
+++ b/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-background-print-ref.html
@@ -1,5 +1,10 @@
 <!DOCTYPE HTML>
 <html>
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <body>
 <table style="background-image: url('resources/aqua-yellow-32x32.png')">
   <thead style="background-image: url('resources/blue-16x20-green-16x20.png')">
diff --git a/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-background-print.html b/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-background-print.html
index 0cbaca60192..05fdef0a860 100644
--- a/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-background-print.html
+++ b/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-background-print.html
@@ -4,6 +4,11 @@
 <link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#tables-2">
 <link rel="help" href="https://drafts.csswg.org/css-break/">
 <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=816498">
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <body>
 <table background="resources/aqua-yellow-32x32.png">
   <thead background="resources/blue-16x20-green-16x20.png">
diff --git a/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-row-pagination-001-print-ref.html b/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-row-pagination-001-print-ref.html
index 2aa94109ad6..b78f9d3bf8a 100644
--- a/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-row-pagination-001-print-ref.html
+++ b/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-row-pagination-001-print-ref.html
@@ -6,6 +6,7 @@
 <style type="text/css">
 @page { size:5in 3in; margin:0.5in; }
 html,body {
+  print-color-adjust: exact;
   color:black;
   background-color:white;
   font-size:16px;
diff --git a/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-row-pagination-001-print.html b/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-row-pagination-001-print.html
index 3a14558a8b2..751a445a87b 100644
--- a/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-row-pagination-001-print.html
+++ b/tests/wpt/tests/html/rendering/non-replaced-elements/tables/table-row-pagination-001-print.html
@@ -10,6 +10,7 @@
 <style type="text/css">
 @page { size:5in 3in; margin:0.5in; }
 html,body {
+  print-color-adjust: exact;
   color:black;
   background-color:white;
   font-size:16px;
diff --git a/tests/wpt/tests/html/rendering/the-details-element/auto-expand-details-text-fragment.html b/tests/wpt/tests/html/rendering/the-details-element/auto-expand-details-text-fragment.html
index 7cc3cc22964..b2416c942b6 100644
--- a/tests/wpt/tests/html/rendering/the-details-element/auto-expand-details-text-fragment.html
+++ b/tests/wpt/tests/html/rendering/the-details-element/auto-expand-details-text-fragment.html
@@ -26,5 +26,5 @@ promise_test(t => new Promise((resolve, reject) => {
     'The matching closed details element should be open.');
   assert_true(results.pageYOffsetAfterRaf > 0,
     'The page should be scrolled down to the match.');
-}), 'Verifies that the beforematch event is fired on the matching element of a ScrollToTextFragment navigation.');
+}), 'Verifies that the target page has scrolled as a result of a ScrollToTextFragment navigation.');
 </script>
diff --git a/tests/wpt/tests/html/rendering/the-details-element/resources/auto-expand-details-text-fragment.html b/tests/wpt/tests/html/rendering/the-details-element/resources/auto-expand-details-text-fragment.html
index b95459fe5c0..102e4aebd95 100644
--- a/tests/wpt/tests/html/rendering/the-details-element/resources/auto-expand-details-text-fragment.html
+++ b/tests/wpt/tests/html/rendering/the-details-element/resources/auto-expand-details-text-fragment.html
@@ -9,19 +9,18 @@
     <div>foo</div>
   </details>
   <script>
-    requestAnimationFrame(() => {
-      requestAnimationFrame(() => {
-        const results = {};
-        // This should be true. The details element should be opened by
-        // ScrollToTextFragment because it has matching text.
-        results.detailsHasOpenAttribute = document.querySelector('details').hasAttribute('open');
-        // This should be greater than zero. The page should be scrolled down
-        // to the matching target.
-        results.pageYOffsetAfterRaf = window.pageYOffset;
+    const details = document.querySelector("details");
+    details.ontoggle = () => {
+      const results = {};
+      // This should be true. The details element should be opened by
+      // ScrollToTextFragment because it has matching text.
+      results.detailsHasOpenAttribute = document.querySelector('details').hasAttribute('open');
+      // This should be greater than zero. The page should be scrolled down
+      // to the matching target.
+      results.pageYOffsetAfterRaf = window.pageYOffset;
 
-        params = new URLSearchParams(window.location.search);
-        stashResultsThenClose(params.get('key'), results);
-      });
-    });
+      params = new URLSearchParams(window.location.search);
+      stashResultsThenClose(params.get('key'), results);
+    };
   </script>
 </body>
diff --git a/tests/wpt/tests/html/semantics/embedded-content/the-img-element/responsive-image-select-print-ref.html b/tests/wpt/tests/html/semantics/embedded-content/the-img-element/responsive-image-select-print-ref.html
index 7189a576427..e6d50908706 100644
--- a/tests/wpt/tests/html/semantics/embedded-content/the-img-element/responsive-image-select-print-ref.html
+++ b/tests/wpt/tests/html/semantics/embedded-content/the-img-element/responsive-image-select-print-ref.html
@@ -1,4 +1,9 @@
 <!DOCTYPE html>
+<style>
+  :root {
+    print-color-adjust: exact;
+  }
+</style>
 <body>
   <div style="width: 200px; height: 200px; background-color: green;"></div>
 </body>
diff --git a/tests/wpt/tests/html/semantics/forms/the-input-element/date-time-with-trusted-types-ref.html b/tests/wpt/tests/html/semantics/forms/the-input-element/date-time-with-trusted-types-ref.html
new file mode 100644
index 00000000000..8cea76c7f0e
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/forms/the-input-element/date-time-with-trusted-types-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+<body>
+<input type="date"><br>
+<input type="month"><br>
+<input type="week"><br>
+<input type="time"><br>
+<input type="datetime-local"><br>
+</body>
+</html>
diff --git a/tests/wpt/tests/html/semantics/forms/the-input-element/date-time-with-trusted-types.html b/tests/wpt/tests/html/semantics/forms/the-input-element/date-time-with-trusted-types.html
new file mode 100644
index 00000000000..d510225bce5
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/forms/the-input-element/date-time-with-trusted-types.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+<head>
+<link rel="match" href="date-time-with-trusted-types-ref.html">
+<meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'">
+</head>
+<body>
+<input type="date"><br>
+<input type="month"><br>
+<input type="week"><br>
+<input type="time"><br>
+<input type="datetime-local"><br>
+</body>
+</html>
diff --git a/tests/wpt/tests/html/semantics/forms/the-input-element/radio-input-cancel.html b/tests/wpt/tests/html/semantics/forms/the-input-element/radio-input-cancel.html
index fc2796b0415..bccd70cac30 100644
--- a/tests/wpt/tests/html/semantics/forms/the-input-element/radio-input-cancel.html
+++ b/tests/wpt/tests/html/semantics/forms/the-input-element/radio-input-cancel.html
@@ -38,4 +38,42 @@ test(() => {
   assert_array_equals(events, ["click"]);
 
 }, "radio input cancel behavior reverts state");
+
+test(() => {
+  const form = document.createElement("form");
+  form.innerHTML = `
+    <input id="radio1" type="radio" name="radiogroup" checked>
+    <input id="radio2" type="radio" name="radiogroup">
+  `;
+  document.body.appendChild(form);
+
+  const inputs = form.querySelectorAll("input[type=radio]");
+  const events = [];
+
+  inputs.forEach(input => {
+    input.addEventListener("change", () => {
+      events.push(`${input.id} change`);
+    });
+    input.addEventListener("click", e => {
+      // cancel click event
+      e.preventDefault();
+      events.push(`${input.id} click`);
+    });
+    input.addEventListener("input", () => {
+      events.push(`${input.id} input`);
+    });
+  });
+
+  assert_true(inputs[0].checked);
+  assert_false(inputs[1].checked);
+
+  inputs[1].click();
+
+  assert_true(inputs[0].checked);
+  assert_false(inputs[1].checked);
+
+  // only click event called
+  assert_array_equals(events, ["radio2 click"]);
+
+}, "radio input cancel behavior reverts previous selected radio input state");
 </script>
diff --git a/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties-reftest-ref.html b/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties-reftest-ref.html
index c62ff5b24d6..2fb0c1f4e95 100644
--- a/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties-reftest-ref.html
+++ b/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties-reftest-ref.html
@@ -30,6 +30,6 @@
   }
 </style>
 
-<permission id="id1" type="geolocation">
-<permission id="id2" type="camera">
+<permission id="id1" type="geolocation"></permission>
+<permission id="id2" type="camera"></permission>
 </body>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties-reftest.tentative.html b/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties-reftest.tentative.html
index ad6986f52b4..4d27b23eb51 100644
--- a/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties-reftest.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties-reftest.tentative.html
@@ -32,6 +32,6 @@
   }
 </style>
 
-<permission id="id1" type="geolocation">
-<permission id="id2" type="camera">
+<permission id="id1" type="geolocation"></permission>
+<permission id="id2" type="camera"></permission>
 </body>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties.tentative.html b/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties.tentative.html
index c0f0fe34542..9678286179a 100644
--- a/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/bounded-css-properties.tentative.html
@@ -33,9 +33,9 @@
 </style>
 
 
-<permission id="id-over-bounds" type="geolocation">
-<permission id="id-under-bounds" type="camera">
-<permission id="id-within-bounds" type="microphone">
+<permission id="id-over-bounds" type="geolocation"></permission>
+<permission id="id-under-bounds" type="camera"></permission>
+<permission id="id-within-bounds" type="microphone"></permission>
 
 <script>
   test(function(){
diff --git a/tests/wpt/tests/html/semantics/permission-element/bounded-sizes-reftest-ref.html b/tests/wpt/tests/html/semantics/permission-element/bounded-sizes-reftest-ref.html
index c0782ce9cd5..462f346edf5 100644
--- a/tests/wpt/tests/html/semantics/permission-element/bounded-sizes-reftest-ref.html
+++ b/tests/wpt/tests/html/semantics/permission-element/bounded-sizes-reftest-ref.html
@@ -40,9 +40,9 @@
     }
   </style>
 
-  <div><permission id="id1" type="geolocation"></div>
-  <div><permission id="id2" type="camera"></div>
-  <div><permission id="id3" type="microphone"></div>
+  <div><permission id="id1" type="geolocation"></permission></div>
+  <div><permission id="id2" type="camera"></permission></div>
+  <div><permission id="id3" type="microphone"></permission></div>
 
 <script>
   let el = document.getElementById("id1");
diff --git a/tests/wpt/tests/html/semantics/permission-element/bounded-sizes-reftest.tentative.html b/tests/wpt/tests/html/semantics/permission-element/bounded-sizes-reftest.tentative.html
index 376fb2dcb3f..3c3a2d5b5b9 100644
--- a/tests/wpt/tests/html/semantics/permission-element/bounded-sizes-reftest.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/bounded-sizes-reftest.tentative.html
@@ -66,7 +66,7 @@
   }
 </style>
 
-<div><permission id="id1" type="geolocation"></div>
-<div><permission id="id2" type="camera"></div>
-<div><permission id="id3" type="microphone"></div>
+<div><permission id="id1" type="geolocation"></permission></div>
+<div><permission id="id2" type="camera"></permission></div>
+<div><permission id="id3" type="microphone"></permission></div>
 </body>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/bounded-sizes.tentative.html b/tests/wpt/tests/html/semantics/permission-element/bounded-sizes.tentative.html
index dbeaebe04de..7a620c2652b 100644
--- a/tests/wpt/tests/html/semantics/permission-element/bounded-sizes.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/bounded-sizes.tentative.html
@@ -55,9 +55,9 @@
 </style>
 
 
-<permission id="el_outside_bounds" type="geolocation">
-<permission id="el_inside_bounds" type="camera">
-<permission id="el_large_min_size" type="microphone">
+<permission id="el_outside_bounds" type="geolocation"></permission>
+<permission id="el_inside_bounds" type="camera"></permission>
+<permission id="el_large_min_size" type="microphone"></permission>
 
 <script>
   test(function(){
diff --git a/tests/wpt/tests/html/semantics/permission-element/display-css-property-reftest-ref.html b/tests/wpt/tests/html/semantics/permission-element/display-css-property-reftest-ref.html
index 6a04c94c037..aa5ffe07a95 100644
--- a/tests/wpt/tests/html/semantics/permission-element/display-css-property-reftest-ref.html
+++ b/tests/wpt/tests/html/semantics/permission-element/display-css-property-reftest-ref.html
@@ -11,6 +11,6 @@
   }
 </style>
 
-<permission id="id1" type="geolocation">
+<permission id="id1" type="geolocation"></permission>
 <span>After element</span>
 </body>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/display-css-property-reftest.tentative.html b/tests/wpt/tests/html/semantics/permission-element/display-css-property-reftest.tentative.html
index e83786373d5..e4288cae3b2 100644
--- a/tests/wpt/tests/html/semantics/permission-element/display-css-property-reftest.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/display-css-property-reftest.tentative.html
@@ -16,7 +16,7 @@
   }
 </style>
 
-<permission id="id1" type="geolocation">
-<permission id="id2" type="camera">
+<permission id="id1" type="geolocation"></permission>
+<permission id="id2" type="camera"></permission>
 <span>After element</span>
 </body>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/display-css-property.tentative.html b/tests/wpt/tests/html/semantics/permission-element/display-css-property.tentative.html
index 7aa22ef4a2b..b87b6aa9e04 100644
--- a/tests/wpt/tests/html/semantics/permission-element/display-css-property.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/display-css-property.tentative.html
@@ -20,9 +20,9 @@
 </style>
 
 
-<permission id="id1" type="geolocation">
-<permission id="id2" type="camera">
-<permission id="id3" type="microphone">
+<permission id="id1" type="geolocation"></permission>
+<permission id="id2" type="camera"></permission>
+<permission id="id3" type="microphone"></permission>
 
 <script>
   test(function(){
diff --git a/tests/wpt/tests/html/semantics/permission-element/granted-selector.html b/tests/wpt/tests/html/semantics/permission-element/granted-selector.html
index 3ce1ad728e0..9fd00114bdf 100644
--- a/tests/wpt/tests/html/semantics/permission-element/granted-selector.html
+++ b/tests/wpt/tests/html/semantics/permission-element/granted-selector.html
@@ -8,7 +8,7 @@
 <script src="/resources/testdriver-vendor.js"></script>
 <body>
 
-<permission id="permission_element" type="camera">
+<permission id="permission_element" type="camera"></permission>
 
 <script>
   promise_test(async() => {
diff --git a/tests/wpt/tests/html/semantics/permission-element/invalid-css-properties.tentative.html b/tests/wpt/tests/html/semantics/permission-element/invalid-css-properties.tentative.html
index 162eba7d679..2f6fc07b392 100644
--- a/tests/wpt/tests/html/semantics/permission-element/invalid-css-properties.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/invalid-css-properties.tentative.html
@@ -20,7 +20,7 @@
   }
 </style>
 
-<permission id="id1" type="geolocation">
+<permission id="id1" type="geolocation"></permission>
 
 <script>
   test(function(){
diff --git a/tests/wpt/tests/html/semantics/permission-element/invalid-type-reftest-ref.html b/tests/wpt/tests/html/semantics/permission-element/invalid-type-reftest-ref.html
new file mode 100644
index 00000000000..359872ea613
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/permission-element/invalid-type-reftest-ref.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<body>
+  <div>
+    The permission element behaves the same as an unknown element.
+  </div>
+
+<style>
+  #id1 {
+    background-color: hsla(210, 70%, 60%, 0.3); /* Semi-transparent blue */
+    border-radius: 5px;
+    padding: 2px 5px;
+    border: solid 1px #767676;
+
+    box-sizing: content-box;
+    display: inline-block;
+  }
+  #id2 {
+    background-color: azure;
+    border: 1px dashed #ccc;
+    padding: 3px;
+    border-radius: 3px;
+
+    box-sizing: content-box;
+    display: inline-block;
+  }
+  button {
+    font-family: "Comic Sans MS", cursive, sans-serif; /* Just for fun! */
+    font-style: italic;
+    font-weight: bold;
+    color: #800080; /* Purple */
+    text-decoration: underline dotted hotpink;
+  }
+</style>
+
+<div>
+  <foobar id="id1">This is some contents</foobar>
+</div>
+<div>
+  <foobar id="id2">
+    <button>A button</button>
+    <span>
+      <li>
+        <ul>1</ul>
+        <ul>2</ul>
+      </li>
+      Some text
+    </span>
+  </foobar>
+</div>
+</body>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/invalid-type-reftest.tentative.html b/tests/wpt/tests/html/semantics/permission-element/invalid-type-reftest.tentative.html
new file mode 100644
index 00000000000..80f3e793e11
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/permission-element/invalid-type-reftest.tentative.html
@@ -0,0 +1,52 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<link rel="match" href="invalid-type-reftest-ref.html">
+<body>
+  <div>
+    The permission element behaves the same as an unknown element.
+  </div>
+
+<style>
+  #id1 {
+    background-color: hsla(210, 70%, 60%, 0.3); /* Semi-transparent blue */
+    border-radius: 5px;
+    padding: 2px 5px;
+    border: solid 1px #767676;
+
+    box-sizing: content-box;
+    display: inline-block;
+  }
+  #id2 {
+    background-color: azure;
+    border: 1px dashed #ccc;
+    padding: 3px;
+    border-radius: 3px;
+
+    box-sizing: content-box;
+    display: inline-block;
+  }
+  button {
+    font-family: "Comic Sans MS", cursive, sans-serif; /* Just for fun! */
+    font-style: italic;
+    font-weight: bold;
+    color: #800080; /* Purple */
+    text-decoration: underline dotted hotpink;
+  }
+</style>
+
+<div>
+  <permission id="id1" type="not-a-valid-type">This is some contents</permission>
+</div>
+<div>
+  <permission id="id2" type>
+    <button>A button</button>
+    <span>
+      <li>
+        <ul>1</ul>
+        <ul>2</ul>
+      </li>
+      Some text
+    </span>
+  </permission>
+</div>
+</body>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/lang-attribute-update.html b/tests/wpt/tests/html/semantics/permission-element/lang-attribute-update.html
index cd470337e78..bca110aabc6 100644
--- a/tests/wpt/tests/html/semantics/permission-element/lang-attribute-update.html
+++ b/tests/wpt/tests/html/semantics/permission-element/lang-attribute-update.html
@@ -11,7 +11,7 @@
   <div id="el1" lang="en">
     <div id="el2" lang="en">
       <div>
-        <permission id="permission-element" type="geolocation" style="width:fit-content"/>
+        <permission id="permission-element" type="geolocation" style="width:fit-content"></permission>
       </div>
     </div>
   </div>
diff --git a/tests/wpt/tests/html/semantics/permission-element/large-min-size-reftest-ref.html b/tests/wpt/tests/html/semantics/permission-element/large-min-size-reftest-ref.html
index 6c0b7a73f0c..8b48bb93feb 100644
--- a/tests/wpt/tests/html/semantics/permission-element/large-min-size-reftest-ref.html
+++ b/tests/wpt/tests/html/semantics/permission-element/large-min-size-reftest-ref.html
@@ -24,8 +24,8 @@
   }
 </style>
 
-<div><permission id="id1" type="geolocation"></div>
-<div><permission id="id2" type="camera"></div>
+<div><permission id="id1" type="geolocation"></permission></div>
+<div><permission id="id2" type="camera"></permission></div>
 <script>
   el = document.getElementById("id1");
   let w = getComputedStyle(el).width;
diff --git a/tests/wpt/tests/html/semantics/permission-element/large-min-size-reftest.tentative.html b/tests/wpt/tests/html/semantics/permission-element/large-min-size-reftest.tentative.html
index c61346c3526..2e2b3791fd0 100644
--- a/tests/wpt/tests/html/semantics/permission-element/large-min-size-reftest.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/large-min-size-reftest.tentative.html
@@ -29,6 +29,6 @@
   }
 </style>
 
-<div><permission id="id1" type="geolocation"></div>
-<div><permission id="id2" type="camera"></div>
+<div><permission id="id1" type="geolocation"></permission></div>
+<div><permission id="id2" type="camera"></permission></div>
 </body>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/negative-offset-and-margin.tentative.html b/tests/wpt/tests/html/semantics/permission-element/negative-offset-and-margin.tentative.html
index 7d6be1a3bc8..0b3d8dc9881 100644
--- a/tests/wpt/tests/html/semantics/permission-element/negative-offset-and-margin.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/negative-offset-and-margin.tentative.html
@@ -33,9 +33,9 @@
 </style>
 
 
-<permission id="id1" type="geolocation">
-<permission id="id2" type="camera">
-<permission id="id3" type="microphone">
+<permission id="id1" type="geolocation"></permission>
+<permission id="id2" type="camera"></permission>
+<permission id="id3" type="microphone"></permission>
 
 <script>
   test(function(){
diff --git a/tests/wpt/tests/html/semantics/permission-element/no-children-rendered.tentative.html b/tests/wpt/tests/html/semantics/permission-element/no-children-rendered.tentative.html
new file mode 100644
index 00000000000..70166104af8
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/permission-element/no-children-rendered.tentative.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<link rel="help" href="https://github.com/WICG/PEPC/blob/main/explainer.md#locking-the-pepc-style">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<body>
+<!-- The permission element is not a void element. Its children do not render. -->
+
+<!-- This tests for implementations that used to have no end tag for the permission element
+ In those implementations there would be 2 permission elements in this div. -->
+<div id="permission-element-div">
+  <permission type="geolocation">
+  <permission type="camera">
+</div>
+
+<permission id="mic" type="microphone">This is some text</permission>
+
+<!-- The permission element does not automatically close <p> tags -->
+<p id="paragraph">Foo <permission>bar</permission> baz</p>
+
+<script>
+  test(function(){
+    assert_equals(1, document.getElementById("permission-element-div").childElementCount);
+    assert_equals('', document.getElementById("mic").innerText);
+    assert_equals('This is some text', document.getElementById("mic").textContent);
+    assert_equals('This is some text', document.getElementById("mic").innerHTML);
+    assert_equals(4, document.body.childElementCount); //div, permission, script, p
+    assert_equals('Foo bar baz', document.getElementById("paragraph").textContent);
+  }, "The permission element should have no end tag or contents");
+</script>
+</body>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/no-end-tag-no-contents.tentative.html b/tests/wpt/tests/html/semantics/permission-element/no-end-tag-no-contents.tentative.html
deleted file mode 100644
index bea3d7102ca..00000000000
--- a/tests/wpt/tests/html/semantics/permission-element/no-end-tag-no-contents.tentative.html
+++ /dev/null
@@ -1,28 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<link rel="help" href="https://github.com/WICG/PEPC/blob/main/explainer.md#locking-the-pepc-style">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<body>
-<!--The permission element should have no end tag or content.
-    Therefore the parsing should stop after the beginning tag, and the following
-    element and text will become part of the 'body' element's contents.
--->
-<permission type="geolocation"><span>this is some text</span></permission>
-
-<script>
-  test(function(){
-    assert_equals(3, document.body.childElementCount); // permission, span, script
-    assert_equals(document.body.innerText, "this is some text", "The text should be part of the 'body' element's text");
-
-    assert_true(document.body.children[0] instanceof HTMLPermissionElement, "First element should be a permission element");
-    var permission = document.body.children[0];
-    assert_equals(permission.innerText, "", "The permission element should have no text");
-    assert_equals(permission.childElementCount, 0, "The permission element should have no children");
-
-    assert_true(document.body.children[1] instanceof HTMLSpanElement, "Second element should be a span element");
-    var span = document.body.children[1];
-    assert_equals(span.innerText, "this is some text", "The span element should contain the text");
-  }, "The permission element should have no end tag or contents");
-</script>
-</body>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/no-focus.tentative.html b/tests/wpt/tests/html/semantics/permission-element/no-focus.tentative.html
index 6e81a20962c..96467885183 100644
--- a/tests/wpt/tests/html/semantics/permission-element/no-focus.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/no-focus.tentative.html
@@ -9,12 +9,12 @@
 <body>
 <!-- The permission element should not be focusable by script.
 -->
-<permission tabindex="0" id="valid_permission_element" type="geolocation">
+<permission tabindex="0" id="valid_permission_element" type="geolocation"></permission>
 
 <span tabindex="0" id="focusable_span">This is some text</span>
 
 <!-- style needed to allow the invalid element to have a width -->
-<permission style="width: auto; padding-left: 10px" tabindex="0" id="invalid_permission_element" type="invalid">
+<permission style="width: auto; padding-left: 10px" tabindex="0" id="invalid_permission_element" type="invalid"></permission>
 
 <script>
   promise_test(async() => {
@@ -45,9 +45,8 @@
        .addTick();
     await actions.send();
 
-    assert_equals(document.activeElement, document.body,
-      "Invalid permission element should not be focusable even by user.\
-      Instead the parent elements gets focus.");
+    assert_equals(document.activeElement, invalid_permission_element,
+      "Permission elements with an invalid-type can be focused like any other HTML element");
 }, "Permission element is not focusable by script");
 </script>
 </body>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-in-div-ref.html b/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-in-div-ref.html
index 38d0cc25a52..8e6267f9aa3 100644
--- a/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-in-div-ref.html
+++ b/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-in-div-ref.html
@@ -18,7 +18,7 @@
 
   <div>
     <div class="inner"></div>
-    <permission type="camera">
+    <permission type="camera"></permission>
   </div>
 </body>
 </html>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-in-div.tentative.html b/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-in-div.tentative.html
index e9080708021..24a2be07fab 100644
--- a/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-in-div.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-in-div.tentative.html
@@ -25,7 +25,7 @@
      all implementation. -->
   <div class="outer">
     <div></div>
-    <permission type="camera">
+    <permission type="camera"></permission>
   </div>
 </body>
 </html>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-ref.html b/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-ref.html
index ca7ad2daa89..a9d8d865595 100644
--- a/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-ref.html
+++ b/tests/wpt/tests/html/semantics/permission-element/pseudo-elements-ref.html
@@ -8,6 +8,6 @@
 
   <p>You should not see the word FAIL below.</p>
 
-  <permission type="camera">
+  <permission type="camera"></permission>
 </body>
 </html>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/pseudo-elements.tentative.html b/tests/wpt/tests/html/semantics/permission-element/pseudo-elements.tentative.html
index e0faefeb55d..3e553e01bcf 100644
--- a/tests/wpt/tests/html/semantics/permission-element/pseudo-elements.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/pseudo-elements.tentative.html
@@ -13,6 +13,6 @@
 
   <p>You should not see the word FAIL below.</p>
 
-  <permission type="camera">
+  <permission type="camera"></permission>
 </body>
 </html>
\ No newline at end of file
diff --git a/tests/wpt/tests/html/semantics/permission-element/quirks-mode-no-height-is-still-bounded-ref.html b/tests/wpt/tests/html/semantics/permission-element/quirks-mode-no-height-is-still-bounded-ref.html
index a97003d82f0..738dc95f8eb 100644
--- a/tests/wpt/tests/html/semantics/permission-element/quirks-mode-no-height-is-still-bounded-ref.html
+++ b/tests/wpt/tests/html/semantics/permission-element/quirks-mode-no-height-is-still-bounded-ref.html
@@ -8,7 +8,7 @@
   }
 </style>
 <body>
-  <permission id="permission" type="camera">
+  <permission id="permission" type="camera"></permission>
   <script>
     let el = document.getElementById("permission");
     el.style.height = (el.clientHeight + 20) + "px";
diff --git a/tests/wpt/tests/html/semantics/permission-element/quirks-mode-no-height-is-still-bounded.tentative.html b/tests/wpt/tests/html/semantics/permission-element/quirks-mode-no-height-is-still-bounded.tentative.html
index cca12c5fb72..78bd4f2555a 100644
--- a/tests/wpt/tests/html/semantics/permission-element/quirks-mode-no-height-is-still-bounded.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/quirks-mode-no-height-is-still-bounded.tentative.html
@@ -10,6 +10,6 @@
   }
 </style>
 <body>
-  <permission type="camera">
+  <permission type="camera"></permission>
 </body>
 </html>
diff --git a/tests/wpt/tests/html/semantics/permission-element/type-supported-feature-detect.tentative.html b/tests/wpt/tests/html/semantics/permission-element/type-supported-feature-detect.tentative.html
new file mode 100644
index 00000000000..fb06f57672e
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/permission-element/type-supported-feature-detect.tentative.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<title>Permission Element: Feature detection</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<script>
+  test(() => {
+    assert_not_equals(typeof HTMLPermissionElement, undefined,
+        `HTMLPermissionElement should not be "undefined"`);
+    assert_equals(typeof HTMLPermissionElement.isTypeSupported, "function",
+        `The type of the isTypeSupported should be "function"`);
+  }, "Test HTMLPermissionElement and isTypeSupported existence");
+
+  [
+    "geolocation",
+    "camera",
+    "microphone",
+    " camera  microphone ",
+    " microphone  camera   ",
+    " camera camera microphone",
+    "microphone microphone camera "
+  ].forEach((type) => {
+    test(() => {
+      assert_true(HTMLPermissionElement.isTypeSupported(type));
+    }, `Test HTMLPermissionElement should support type ${type}`);
+  });
+
+  [
+    "invalid",
+    "cameraa",
+    "microphone geolocation",
+    "camera geolocation",
+    "camera geolocation microphone",
+  ].forEach((type) => {
+    test(() => {
+      assert_false(HTMLPermissionElement.isTypeSupported(type));
+    }, `Test HTMLPermissionElement should not support type ${type}`);
+  });
+</script>
+</body>
diff --git a/tests/wpt/tests/html/semantics/permission-element/unbounded-width-with-border-reftest-ref.html b/tests/wpt/tests/html/semantics/permission-element/unbounded-width-with-border-reftest-ref.html
index 8219b9a7420..0753b313e88 100644
--- a/tests/wpt/tests/html/semantics/permission-element/unbounded-width-with-border-reftest-ref.html
+++ b/tests/wpt/tests/html/semantics/permission-element/unbounded-width-with-border-reftest-ref.html
@@ -51,11 +51,11 @@ width: fit-content;
     }
   </style>
 
-<div><permission id="unlimited-width" type="geolocation"></div>
-<div><permission id="no-border-width" type="camera"></div>
-<div><permission id="no-contrast" type="microphone"></div>
-<div><permission id="transparent" type="microphone camera"></div>
-<div><permission id="top-no-contrast" type="geolocation"></div>
+<div><permission id="unlimited-width" type="geolocation"></permission></div>
+<div><permission id="no-border-width" type="camera"></permission></div>
+<div><permission id="no-contrast" type="microphone"></permission></div>
+<div><permission id="transparent" type="microphone camera"></permission></div>
+<div><permission id="top-no-contrast" type="geolocation"></permission></div>
 
 <script>
   function setWidthToMax(el) {
diff --git a/tests/wpt/tests/html/semantics/permission-element/unbounded-width-with-border-reftest.tentative.html b/tests/wpt/tests/html/semantics/permission-element/unbounded-width-with-border-reftest.tentative.html
index 8de1876b210..39c9b107ae6 100644
--- a/tests/wpt/tests/html/semantics/permission-element/unbounded-width-with-border-reftest.tentative.html
+++ b/tests/wpt/tests/html/semantics/permission-element/unbounded-width-with-border-reftest.tentative.html
@@ -48,10 +48,10 @@
   }
 </style>
 
-<div><permission id="unlimited-width" type="geolocation"></div>
-<div><permission id="no-border-width" type="camera"></div>
-<div><permission id="no-contrast" type="microphone"></div>
-<div><permission id="transparent" type="microphone camera"></div>
-<div><permission id="top-no-contrast" type="geolocation"></div>
+<div><permission id="unlimited-width" type="geolocation"></permission></div>
+<div><permission id="no-border-width" type="camera"></permission></div>
+<div><permission id="no-contrast" type="microphone"></permission></div>
+<div><permission id="transparent" type="microphone camera"></permission></div>
+<div><permission id="top-no-contrast" type="geolocation"></permission></div>
 
 </body>
diff --git a/tests/wpt/tests/html/semantics/popovers/popover-focus-2.html b/tests/wpt/tests/html/semantics/popovers/popover-focus-2.html
index 6f361698f54..cd03c6a8434 100644
--- a/tests/wpt/tests/html/semantics/popovers/popover-focus-2.html
+++ b/tests/wpt/tests/html/semantics/popovers/popover-focus-2.html
@@ -2,7 +2,6 @@
 <meta charset="utf-8" />
 <title>Popover focus behaviors</title>
 <meta name="timeout" content="long">
-<link rel="author" href="mailto:masonf@chromium.org">
 <link rel="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com">
 <link rel=help href="https://open-ui.org/components/popover.research.explainer">
 <script src="/resources/testharness.js"></script>
@@ -11,6 +10,7 @@
 <script src="/resources/testdriver-actions.js"></script>
 <script src="/resources/testdriver-vendor.js"></script>
 <script src="resources/popover-utils.js"></script>
+
 <div id=fixup>
   <button id=button1 tabindex="0">Button1</button>
   <div popover id=popover0  tabindex="0" style="top:300px">
@@ -40,19 +40,6 @@
   }
 </style>
 <script>
-async function verifyFocusOrder(order,description) {
-  order[0].focus();
-  for(let i=0;i<order.length;++i) {
-    const control = order[i];
-    assert_equals(document.activeElement,control,`${description}: Step ${i+1}`);
-    await sendTab();
-  }
-  for(let i=order.length-1;i>=0;--i) {
-    const control = order[i];
-    await sendShiftTab();
-    assert_equals(document.activeElement,control,`${description}: Step ${i+1} (backwards)`);
-  }
-}
 async function testPopoverFocusNavigation() {
   button1.focus();
   assert_equals(document.activeElement,button1);
@@ -169,295 +156,3 @@ promise_test(async t => {
   await testPopoverFocusNavigation()
 }, "Popover focus navigation with imperative invocation");
 </script>
-<button id=circular0 tabindex="0">Invoker</button>
-<div id=popover4 popover>
-  <button id=circular1 autofocus tabindex="0"></button>
-  <button id=circular2 tabindex="0"></button>
-  <button id=circular3 tabindex="0"></button>
-</div>
-<button id=circular4 tabindex="0">after</button>
-<script>
-async function testCircularReferenceTabNavigation() {
-  circular0.focus();
-  await sendEnter(); // Activate the invoker
-  await verifyFocusOrder([circular0, circular1, circular2, circular3, circular4],'circular reference');
-  popover4.hidePopover();
-}
-promise_test(async t => {
-  circular0.setAttribute('popovertarget', 'popover4');
-  circular1.setAttribute('popovertarget', 'popover4');
-  circular1.setAttribute('popovertargetaction', 'hide');
-  circular2.setAttribute('popovertarget', 'popover4');
-  circular2.setAttribute('popovertargetaction', 'show');
-  circular3.setAttribute('popovertarget', 'popover4');
-  t.add_cleanup(() => {
-    circular0.removeAttribute('popovertarget');
-    circular1.removeAttribute('popovertarget');
-    circular1.removeAttribute('popovertargetaction');
-    circular2.removeAttribute('popovertarget');
-    circular2.removeAttribute('popovertargetaction');
-    circular3.removeAttribute('popovertarget');
-  });
-  await testCircularReferenceTabNavigation();
-}, "Circular reference tab navigation with popovertarget invocation");
-promise_test(async t => {
-  circular0.setAttribute('commandfor', 'popover4');
-  circular1.setAttribute('commandfor', 'popover4');
-  circular2.setAttribute('commandfor', 'popover4');
-  circular3.setAttribute('commandfor', 'popover4');
-  circular0.setAttribute('command', 'toggle-popover');
-  circular1.setAttribute('command', 'hide-popover');
-  circular2.setAttribute('command', 'show-popover');
-  circular3.setAttribute('command', 'toggle-popover');
-  t.add_cleanup(() => {
-    circular0.removeAttribute('commandfor');
-    circular1.removeAttribute('commandfor');
-    circular2.removeAttribute('commandfor');
-    circular3.removeAttribute('commandfor');
-    circular0.removeAttribute('command');
-    circular1.removeAttribute('command');
-    circular2.removeAttribute('command');
-    circular3.removeAttribute('command');
-  });
-  await testCircularReferenceTabNavigation();
-}, "Circular reference tab navigation with command/commandfor invocation");
-promise_test(async t => {
-  const circular0Click = () => {
-    popover4.togglePopover({ source: circular0 });
-  };
-  circular0.addEventListener('click', circular0Click);
-  const circular1Click = () => {
-    popover4.hidePopover();
-  };
-  circular1.addEventListener('click', circular1Click);
-  const circular2Click = () => {
-    popover4.showPopover({ source: circular2 });
-  };
-  circular2.addEventListener('click', circular2Click);
-  const circular3Click = () => {
-    popover4.togglePopover({ source: circular3 });
-  };
-  circular3.addEventListener('click', circular3Click);
-  t.add_cleanup(() => {
-    circular0.removeEventListener('click', circular0Click);
-    circular1.removeEventListener('click', circular1Click);
-    circular2.removeEventListener('click', circular2Click);
-    circular3.removeEventListener('click', circular3Click);
-  });
-  await testCircularReferenceTabNavigation();
-}, "Circular reference tab navigation with imperative invocation");
-</script>
-<div id=focus-return1>
-  <button tabindex="0">Show popover</button>
-  <div popover id=focus-return1-p>
-    <button autofocus tabindex="0">Hide popover</button>
-  </div>
-</div>
-<script>
-async function testPopoverFocusReturn1() {
-  const invoker = document.querySelector('#focus-return1>button');
-  const popover = document.querySelector('#focus-return1>[popover]');
-  const hideButton = popover.querySelector('button');
-  invoker.focus(); // Make sure button is focused.
-  assert_equals(document.activeElement,invoker);
-  await sendEnter(); // Activate the invoker
-  assert_true(popover.matches(':popover-open'), 'popover should be invoked by invoker');
-  assert_equals(document.activeElement,hideButton,'Hide button should be focused due to autofocus attribute');
-  await sendEnter(); // Activate the hide invoker
-  assert_false(popover.matches(':popover-open'), 'popover should be hidden by invoker');
-  assert_equals(document.activeElement,invoker,'Focus should be returned to the invoker');
-}
-promise_test(async t => {
-  const invoker = document.querySelector('#focus-return1>button');
-  const popover = document.querySelector('#focus-return1>[popover]');
-  const hideButton = popover.querySelector('button');
-  invoker.setAttribute('popovertarget', 'focus-return1-p');
-  invoker.setAttribute('popovertargetaction', 'show');
-  hideButton.setAttribute('popovertarget', 'focus-return1-p');
-  hideButton.setAttribute('popovertargetaction', 'hide');
-  t.add_cleanup(() => {
-    invoker.removeAttribute('popovertarget');
-    invoker.removeAttribute('popovertargetaction');
-    hideButton.removeAttribute('popovertarget');
-    hideButton.removeAttribute('popovertargetaction');
-  });
-  await testPopoverFocusReturn1();
-}, "Popover focus returns when popover is hidden by invoker with popovertarget invocation");
-promise_test(async t => {
-  const invoker = document.querySelector('#focus-return1>button');
-  const popover = document.querySelector('#focus-return1>[popover]');
-  const hideButton = popover.querySelector('button');
-  invoker.setAttribute('commandfor', 'focus-return1-p');
-  invoker.setAttribute('command', 'show-popover');
-  hideButton.setAttribute('commandfor', 'focus-return1-p');
-  hideButton.setAttribute('command', 'hide-popover');
-  t.add_cleanup(() => {
-    invoker.removeAttribute('commandfor');
-    invoker.removeAttribute('command');
-    hideButton.removeAttribute('commandfor');
-    hideButton.removeAttribute('command');
-  });
-  await testPopoverFocusReturn1();
-}, "Popover focus returns when popover is hidden by invoker with commandfor invocation");
-promise_test(async t => {
-  const invoker = document.querySelector('#focus-return1>button');
-  const popover = document.querySelector('#focus-return1>[popover]');
-  const hideButton = popover.querySelector('button');
-  const invokerClick = () => {
-    popover.showPopover({ source: invoker });
-  };
-  invoker.addEventListener('click', invokerClick);
-  const hideButtonClick = () => {
-    popover.hidePopover();
-  };
-  hideButton.addEventListener('click', hideButtonClick);
-  t.add_cleanup(() => {
-    invoker.removeEventListener('click', invokerClick);
-    hideButton.removeEventListener('click', hideButtonClick);
-  });
-  await testPopoverFocusReturn1();
-}, "Popover focus returns when popover is hidden by invoker with imperative invocation");
-</script>
-<div id=focus-return2>
-  <button tabindex="0">Toggle popover</button>
-  <div popover id=focus-return2-p>Popover with <button tabindex="0">focusable element</button></div>
-  <span tabindex=0>Other focusable element</span>
-</div>
-<script>
-async function testPopoverFocusReturn2() {
-  const invoker = document.querySelector('#focus-return2>button');
-  const popover = document.querySelector('#focus-return2>[popover]');
-  const otherElement = document.querySelector('#focus-return2>span');
-  invoker.focus(); // Make sure button is focused.
-  assert_equals(document.activeElement,invoker);
-  invoker.click(); // Activate the invoker
-  assert_true(popover.matches(':popover-open'), 'popover should be invoked by invoker');
-  assert_equals(document.activeElement,invoker,'invoker should still be focused');
-  await sendTab();
-  assert_equals(document.activeElement,popover.querySelector('button'),'next up is the popover');
-  await sendTab();
-  assert_equals(document.activeElement,otherElement,'next focus stop is outside the popover');
-  await sendEscape(); // Close the popover via ESC
-  assert_false(popover.matches(':popover-open'), 'popover should be hidden');
-  assert_equals(document.activeElement,otherElement,'focus does not move because it was not inside the popover');
-}
-promise_test(async t => {
-  const invoker = document.querySelector('#focus-return2>button');
-  invoker.setAttribute('popovertarget', 'focus-return2-p');
-  t.add_cleanup(() => {
-    invoker.removeAttribute('popovertarget');
-  });
-  await testPopoverFocusReturn2();
-}, "Popover focus only returns to invoker when focus is within the popover with popovertarget invocation");
-promise_test(async t => {
-  const invoker = document.querySelector('#focus-return2>button');
-  invoker.setAttribute('command', 'toggle-popover');
-  invoker.setAttribute('commandfor', 'focus-return2-p');
-  t.add_cleanup(() => {
-    invoker.removeAttribute('command');
-    invoker.removeAttribute('commandfor');
-  });
-  await testPopoverFocusReturn2();
-}, "Popover focus only returns to invoker when focus is within the popover with command/commandfor invocation");
-promise_test(async t => {
-  const invoker = document.querySelector('#focus-return2>button');
-  const popover = document.querySelector('#focus-return2>[popover]');
-  const invokerClick = () => {
-    popover.togglePopover({ source: invoker });
-  };
-  invoker.addEventListener('click', invokerClick);
-  t.add_cleanup(() => {
-    invoker.removeEventListener('click', invokerClick);
-  });
-  await testPopoverFocusReturn2();
-}, "Popover focus only returns to invoker when focus is within the popover with imperative invocation");
-</script>
-<div id=no-focus-candidate>
-  <button tabindex="0">Toggle popover</button>
-  <div popover id=no-focus-candidate-p>
-    Popover with <button tabindex="0">focusable element</button>
-    <div popover id=no-focus-candidate-p2>Nested popover with <button tabindex="0">focusable element</button></div>
-  </div>
-</div>
-<script>
-async function testNoFocusCandidate() {
-  const invoker = document.querySelector('#no-focus-candidate>button');
-  const popover = document.querySelector('#no-focus-candidate>[popover]');
-  const nestedPopover = document.querySelector('#no-focus-candidate>[popover]>[popover]');
-  invoker.focus(); // Make sure button is focused.
-  assert_equals(document.activeElement,invoker);
-  invoker.click(); // Activate the invoker
-  assert_true(popover.matches(':popover-open'), 'popover should be invoked by invoker');
-  assert_equals(document.activeElement,invoker, 'invoker should still be focused');
-  await sendTab();
-  assert_equals(document.activeElement,popover.querySelector('button'),'next up is the popover');
-  await sendEnter(); // Show nested popover
-  assert_true(nestedPopover.matches(':popover-open'), 'nested popover should be invoked by invoker');
-  await sendTab();
-  assert_equals(document.activeElement, nestedPopover.querySelector('button'), 'focus on the nested popover button');
-  popover.querySelector('button').disabled = true; // Make the invoker no longer a focus candidate.
-  await sendShiftTab();
-  assert_equals(document.activeElement, invoker, 'initial invoker should be focused, nested popover invoker is skipped since it is disabled');
-  nestedPopover.querySelector('button').focus();
-  await sendTab();
-  assert_equals(document.activeElement, document.body, 'no more focusable elements after the button');
-}
-promise_test(async t => {
-  const invoker = document.querySelector('#no-focus-candidate>button');
-  const popover = document.querySelector('#no-focus-candidate>[popover]');
-  const nestedButton = popover.querySelector('button');
-  const nestedPopover = document.querySelector('#no-focus-candidate>[popover]>[popover]');
-  invoker.setAttribute('popovertarget', 'no-focus-candidate-p');
-  nestedButton.setAttribute('popovertarget', 'no-focus-candidate-p2');
-  t.add_cleanup(() => {
-    invoker.removeAttribute('popovertarget');
-    nestedButton.removeAttribute('popovertarget');
-    nestedButton.disabled = false;
-    popover.hidePopover();
-    nestedPopover.hidePopover();
-  });
-  await testNoFocusCandidate();
-}, "Cases where the next focus candidate isn't in the direct parent scope with popovertarget invocation");
-promise_test(async t => {
-  const invoker = document.querySelector('#no-focus-candidate>button');
-  const popover = document.querySelector('#no-focus-candidate>[popover]');
-  const nestedButton = popover.querySelector('button');
-  const nestedPopover = document.querySelector('#no-focus-candidate>[popover]>[popover]');
-  invoker.setAttribute('commandfor', 'no-focus-candidate-p');
-  invoker.setAttribute('command', 'toggle-popover');
-  nestedButton.setAttribute('commandfor', 'no-focus-candidate-p2');
-  nestedButton.setAttribute('command', 'toggle-popover');
-  t.add_cleanup(() => {
-    invoker.removeAttribute('command');
-    invoker.removeAttribute('commandfor');
-    nestedButton.removeAttribute('command');
-    nestedButton.removeAttribute('commandfor');
-    nestedButton.disabled = false;
-    popover.hidePopover();
-    nestedPopover.hidePopover();
-  });
-  await testNoFocusCandidate();
-}, "Cases where the next focus candidate isn't in the direct parent scope with command/commandfor invocation");
-promise_test(async t => {
-  const invoker = document.querySelector('#no-focus-candidate>button');
-  const popover = document.querySelector('#no-focus-candidate>[popover]');
-  const nestedButton = popover.querySelector('button');
-  const nestedPopover = document.querySelector('#no-focus-candidate>[popover]>[popover]');
-  const invokerClick = () => {
-    popover.togglePopover({ source: invoker });
-  };
-  invoker.addEventListener('click', invokerClick);
-  const nestedButtonClick = () => {
-    nestedPopover.togglePopover({ source: nestedButton });
-  };
-  nestedButton.addEventListener('click', nestedButtonClick);
-  t.add_cleanup(() => {
-    invoker.removeEventListener('click', invokerClick);
-    nestedButton.removeEventListener('click', nestedButtonClick);
-    nestedButton.disabled = false;
-    popover.hidePopover();
-    nestedPopover.hidePopover();
-  });
-  await testNoFocusCandidate();
-}, "Cases where the next focus candidate isn't in the direct parent scope with imperative invocation");
-</script>
diff --git a/tests/wpt/tests/html/semantics/popovers/popover-focus-3.html b/tests/wpt/tests/html/semantics/popovers/popover-focus-3.html
new file mode 100644
index 00000000000..bcf49cb19e3
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/popovers/popover-focus-3.html
@@ -0,0 +1,219 @@
+<!DOCTYPE html>
+<meta charset="utf-8" />
+<title>Popover focus behaviors</title>
+<meta name="timeout" content="long">
+<link rel="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com">
+<link rel=help href="https://open-ui.org/components/popover.research.explainer">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="resources/popover-utils.js"></script>
+
+<button id=circular0 tabindex="0">Invoker</button>
+<div id=popover4 popover>
+  <button id=circular1 autofocus tabindex="0"></button>
+  <button id=circular2 tabindex="0"></button>
+  <button id=circular3 tabindex="0"></button>
+</div>
+<button id=circular4 tabindex="0">after</button>
+<script>
+async function testCircularReferenceTabNavigation() {
+  circular0.focus();
+  await sendEnter(); // Activate the invoker
+  await verifyFocusOrder([circular0, circular1, circular2, circular3, circular4],'circular reference');
+  popover4.hidePopover();
+}
+promise_test(async t => {
+  circular0.setAttribute('popovertarget', 'popover4');
+  circular1.setAttribute('popovertarget', 'popover4');
+  circular1.setAttribute('popovertargetaction', 'hide');
+  circular2.setAttribute('popovertarget', 'popover4');
+  circular2.setAttribute('popovertargetaction', 'show');
+  circular3.setAttribute('popovertarget', 'popover4');
+  t.add_cleanup(() => {
+    circular0.removeAttribute('popovertarget');
+    circular1.removeAttribute('popovertarget');
+    circular1.removeAttribute('popovertargetaction');
+    circular2.removeAttribute('popovertarget');
+    circular2.removeAttribute('popovertargetaction');
+    circular3.removeAttribute('popovertarget');
+  });
+  await testCircularReferenceTabNavigation();
+}, "Circular reference tab navigation with popovertarget invocation");
+promise_test(async t => {
+  circular0.setAttribute('commandfor', 'popover4');
+  circular1.setAttribute('commandfor', 'popover4');
+  circular2.setAttribute('commandfor', 'popover4');
+  circular3.setAttribute('commandfor', 'popover4');
+  circular0.setAttribute('command', 'toggle-popover');
+  circular1.setAttribute('command', 'hide-popover');
+  circular2.setAttribute('command', 'show-popover');
+  circular3.setAttribute('command', 'toggle-popover');
+  t.add_cleanup(() => {
+    circular0.removeAttribute('commandfor');
+    circular1.removeAttribute('commandfor');
+    circular2.removeAttribute('commandfor');
+    circular3.removeAttribute('commandfor');
+    circular0.removeAttribute('command');
+    circular1.removeAttribute('command');
+    circular2.removeAttribute('command');
+    circular3.removeAttribute('command');
+  });
+  await testCircularReferenceTabNavigation();
+}, "Circular reference tab navigation with command/commandfor invocation");
+promise_test(async t => {
+  const circular0Click = () => {
+    popover4.togglePopover({ source: circular0 });
+  };
+  circular0.addEventListener('click', circular0Click);
+  const circular1Click = () => {
+    popover4.hidePopover();
+  };
+  circular1.addEventListener('click', circular1Click);
+  const circular2Click = () => {
+    popover4.showPopover({ source: circular2 });
+  };
+  circular2.addEventListener('click', circular2Click);
+  const circular3Click = () => {
+    popover4.togglePopover({ source: circular3 });
+  };
+  circular3.addEventListener('click', circular3Click);
+  t.add_cleanup(() => {
+    circular0.removeEventListener('click', circular0Click);
+    circular1.removeEventListener('click', circular1Click);
+    circular2.removeEventListener('click', circular2Click);
+    circular3.removeEventListener('click', circular3Click);
+  });
+  await testCircularReferenceTabNavigation();
+}, "Circular reference tab navigation with imperative invocation");
+</script>
+
+<div id=focus-return1>
+  <button tabindex="0">Show popover</button>
+  <div popover id=focus-return1-p>
+    <button autofocus tabindex="0">Hide popover</button>
+  </div>
+</div>
+<script>
+async function testPopoverFocusReturn1() {
+  const invoker = document.querySelector('#focus-return1>button');
+  const popover = document.querySelector('#focus-return1>[popover]');
+  const hideButton = popover.querySelector('button');
+  invoker.focus(); // Make sure button is focused.
+  assert_equals(document.activeElement,invoker);
+  await sendEnter(); // Activate the invoker
+  assert_true(popover.matches(':popover-open'), 'popover should be invoked by invoker');
+  assert_equals(document.activeElement,hideButton,'Hide button should be focused due to autofocus attribute');
+  await sendEnter(); // Activate the hide invoker
+  assert_false(popover.matches(':popover-open'), 'popover should be hidden by invoker');
+  assert_equals(document.activeElement,invoker,'Focus should be returned to the invoker');
+}
+promise_test(async t => {
+  const invoker = document.querySelector('#focus-return1>button');
+  const popover = document.querySelector('#focus-return1>[popover]');
+  const hideButton = popover.querySelector('button');
+  invoker.setAttribute('popovertarget', 'focus-return1-p');
+  invoker.setAttribute('popovertargetaction', 'show');
+  hideButton.setAttribute('popovertarget', 'focus-return1-p');
+  hideButton.setAttribute('popovertargetaction', 'hide');
+  t.add_cleanup(() => {
+    invoker.removeAttribute('popovertarget');
+    invoker.removeAttribute('popovertargetaction');
+    hideButton.removeAttribute('popovertarget');
+    hideButton.removeAttribute('popovertargetaction');
+  });
+  await testPopoverFocusReturn1();
+}, "Popover focus returns when popover is hidden by invoker with popovertarget invocation");
+promise_test(async t => {
+  const invoker = document.querySelector('#focus-return1>button');
+  const popover = document.querySelector('#focus-return1>[popover]');
+  const hideButton = popover.querySelector('button');
+  invoker.setAttribute('commandfor', 'focus-return1-p');
+  invoker.setAttribute('command', 'show-popover');
+  hideButton.setAttribute('commandfor', 'focus-return1-p');
+  hideButton.setAttribute('command', 'hide-popover');
+  t.add_cleanup(() => {
+    invoker.removeAttribute('commandfor');
+    invoker.removeAttribute('command');
+    hideButton.removeAttribute('commandfor');
+    hideButton.removeAttribute('command');
+  });
+  await testPopoverFocusReturn1();
+}, "Popover focus returns when popover is hidden by invoker with commandfor invocation");
+promise_test(async t => {
+  const invoker = document.querySelector('#focus-return1>button');
+  const popover = document.querySelector('#focus-return1>[popover]');
+  const hideButton = popover.querySelector('button');
+  const invokerClick = () => {
+    popover.showPopover({ source: invoker });
+  };
+  invoker.addEventListener('click', invokerClick);
+  const hideButtonClick = () => {
+    popover.hidePopover();
+  };
+  hideButton.addEventListener('click', hideButtonClick);
+  t.add_cleanup(() => {
+    invoker.removeEventListener('click', invokerClick);
+    hideButton.removeEventListener('click', hideButtonClick);
+  });
+  await testPopoverFocusReturn1();
+}, "Popover focus returns when popover is hidden by invoker with imperative invocation");
+</script>
+
+<div id=focus-return2>
+  <button tabindex="0">Toggle popover</button>
+  <div popover id=focus-return2-p>Popover with <button tabindex="0">focusable element</button></div>
+  <span tabindex=0>Other focusable element</span>
+</div>
+<script>
+async function testPopoverFocusReturn2() {
+  const invoker = document.querySelector('#focus-return2>button');
+  const popover = document.querySelector('#focus-return2>[popover]');
+  const otherElement = document.querySelector('#focus-return2>span');
+  invoker.focus(); // Make sure button is focused.
+  assert_equals(document.activeElement,invoker);
+  invoker.click(); // Activate the invoker
+  assert_true(popover.matches(':popover-open'), 'popover should be invoked by invoker');
+  assert_equals(document.activeElement,invoker,'invoker should still be focused');
+  await sendTab();
+  assert_equals(document.activeElement,popover.querySelector('button'),'next up is the popover');
+  await sendTab();
+  assert_equals(document.activeElement,otherElement,'next focus stop is outside the popover');
+  await sendEscape(); // Close the popover via ESC
+  assert_false(popover.matches(':popover-open'), 'popover should be hidden');
+  assert_equals(document.activeElement,otherElement,'focus does not move because it was not inside the popover');
+}
+promise_test(async t => {
+  const invoker = document.querySelector('#focus-return2>button');
+  invoker.setAttribute('popovertarget', 'focus-return2-p');
+  t.add_cleanup(() => {
+    invoker.removeAttribute('popovertarget');
+  });
+  await testPopoverFocusReturn2();
+}, "Popover focus only returns to invoker when focus is within the popover with popovertarget invocation");
+promise_test(async t => {
+  const invoker = document.querySelector('#focus-return2>button');
+  invoker.setAttribute('command', 'toggle-popover');
+  invoker.setAttribute('commandfor', 'focus-return2-p');
+  t.add_cleanup(() => {
+    invoker.removeAttribute('command');
+    invoker.removeAttribute('commandfor');
+  });
+  await testPopoverFocusReturn2();
+}, "Popover focus only returns to invoker when focus is within the popover with command/commandfor invocation");
+promise_test(async t => {
+  const invoker = document.querySelector('#focus-return2>button');
+  const popover = document.querySelector('#focus-return2>[popover]');
+  const invokerClick = () => {
+    popover.togglePopover({ source: invoker });
+  };
+  invoker.addEventListener('click', invokerClick);
+  t.add_cleanup(() => {
+    invoker.removeEventListener('click', invokerClick);
+  });
+  await testPopoverFocusReturn2();
+}, "Popover focus only returns to invoker when focus is within the popover with imperative invocation");
+</script>
+
diff --git a/tests/wpt/tests/html/semantics/popovers/popover-focus-4.html b/tests/wpt/tests/html/semantics/popovers/popover-focus-4.html
new file mode 100644
index 00000000000..81a2f26e3b3
--- /dev/null
+++ b/tests/wpt/tests/html/semantics/popovers/popover-focus-4.html
@@ -0,0 +1,104 @@
+<!DOCTYPE html>
+<meta charset="utf-8" />
+<title>Popover focus behaviors</title>
+<meta name="timeout" content="long">
+<link rel="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com">
+<link rel=help href="https://open-ui.org/components/popover.research.explainer">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="resources/popover-utils.js"></script>
+
+<div id=no-focus-candidate>
+  <button tabindex="0">Toggle popover</button>
+  <div popover id=no-focus-candidate-p>
+    Popover with <button tabindex="0">focusable element</button>
+    <div popover id=no-focus-candidate-p2>Nested popover with <button tabindex="0">focusable element</button></div>
+  </div>
+</div>
+<button id="after"></button>
+
+<script>
+async function testNoFocusCandidate() {
+  const invoker = document.querySelector('#no-focus-candidate>button');
+  const popover = document.querySelector('#no-focus-candidate>[popover]');
+  const nestedPopover = document.querySelector('#no-focus-candidate>[popover]>[popover]');
+  invoker.focus(); // Make sure button is focused.
+  assert_equals(document.activeElement,invoker);
+  invoker.click(); // Activate the invoker
+  assert_true(popover.matches(':popover-open'), 'popover should be invoked by invoker');
+  assert_equals(document.activeElement,invoker, 'invoker should still be focused');
+  await sendTab();
+  assert_equals(document.activeElement,popover.querySelector('button'),'next up is the popover');
+  await sendEnter(); // Show nested popover
+  assert_true(nestedPopover.matches(':popover-open'), 'nested popover should be invoked by invoker');
+  await sendTab();
+  assert_equals(document.activeElement, nestedPopover.querySelector('button'), 'focus on the nested popover button');
+  popover.querySelector('button').disabled = true; // Make the invoker no longer a focus candidate.
+  await sendShiftTab();
+  assert_equals(document.activeElement, invoker, 'initial invoker should be focused, nested popover invoker is skipped since it is disabled');
+  nestedPopover.querySelector('button').focus();
+  await sendTab();
+  assert_equals(document.activeElement,after,'no more focusable elements after the button');
+}
+promise_test(async t => {
+  const invoker = document.querySelector('#no-focus-candidate>button');
+  const popover = document.querySelector('#no-focus-candidate>[popover]');
+  const nestedButton = popover.querySelector('button');
+  const nestedPopover = document.querySelector('#no-focus-candidate>[popover]>[popover]');
+  invoker.setAttribute('popovertarget', 'no-focus-candidate-p');
+  nestedButton.setAttribute('popovertarget', 'no-focus-candidate-p2');
+  t.add_cleanup(() => {
+    invoker.removeAttribute('popovertarget');
+    nestedButton.removeAttribute('popovertarget');
+    nestedButton.disabled = false;
+    popover.hidePopover();
+    nestedPopover.hidePopover();
+  });
+  await testNoFocusCandidate();
+}, "Cases where the next focus candidate isn't in the direct parent scope with popovertarget invocation");
+promise_test(async t => {
+  const invoker = document.querySelector('#no-focus-candidate>button');
+  const popover = document.querySelector('#no-focus-candidate>[popover]');
+  const nestedButton = popover.querySelector('button');
+  const nestedPopover = document.querySelector('#no-focus-candidate>[popover]>[popover]');
+  invoker.setAttribute('commandfor', 'no-focus-candidate-p');
+  invoker.setAttribute('command', 'toggle-popover');
+  nestedButton.setAttribute('commandfor', 'no-focus-candidate-p2');
+  nestedButton.setAttribute('command', 'toggle-popover');
+  t.add_cleanup(() => {
+    invoker.removeAttribute('command');
+    invoker.removeAttribute('commandfor');
+    nestedButton.removeAttribute('command');
+    nestedButton.removeAttribute('commandfor');
+    nestedButton.disabled = false;
+    popover.hidePopover();
+    nestedPopover.hidePopover();
+  });
+  await testNoFocusCandidate();
+}, "Cases where the next focus candidate isn't in the direct parent scope with command/commandfor invocation");
+promise_test(async t => {
+  const invoker = document.querySelector('#no-focus-candidate>button');
+  const popover = document.querySelector('#no-focus-candidate>[popover]');
+  const nestedButton = popover.querySelector('button');
+  const nestedPopover = document.querySelector('#no-focus-candidate>[popover]>[popover]');
+  const invokerClick = () => {
+    popover.togglePopover({ source: invoker });
+  };
+  invoker.addEventListener('click', invokerClick);
+  const nestedButtonClick = () => {
+    nestedPopover.togglePopover({ source: nestedButton });
+  };
+  nestedButton.addEventListener('click', nestedButtonClick);
+  t.add_cleanup(() => {
+    invoker.removeEventListener('click', invokerClick);
+    nestedButton.removeEventListener('click', nestedButtonClick);
+    nestedButton.disabled = false;
+    popover.hidePopover();
+    nestedPopover.hidePopover();
+  });
+  await testNoFocusCandidate();
+}, "Cases where the next focus candidate isn't in the direct parent scope with imperative invocation");
+</script>
diff --git a/tests/wpt/tests/html/semantics/popovers/resources/popover-utils.js b/tests/wpt/tests/html/semantics/popovers/resources/popover-utils.js
index 544ec843152..6ab5a08898d 100644
--- a/tests/wpt/tests/html/semantics/popovers/resources/popover-utils.js
+++ b/tests/wpt/tests/html/semantics/popovers/resources/popover-utils.js
@@ -143,3 +143,17 @@ function assertNotAPopover(nonPopover) {
   assert_throws_dom("NotSupportedError",() => nonPopover.togglePopover(),'Calling togglePopover on a non-popover should throw NotSupported');
   assertPopoverVisibility(nonPopover, /*isPopover*/false, expectVisible, 'Calling togglePopover on a non-popover should leave it visible');
 }
+
+async function verifyFocusOrder(order,description) {
+  order[0].focus();
+  for(let i=0;i<order.length;++i) {
+    const control = order[i];
+    assert_equals(document.activeElement,control,`${description}: Step ${i+1}`);
+    await sendTab();
+  }
+  for(let i=order.length-1;i>=0;--i) {
+    const control = order[i];
+    await sendShiftTab();
+    assert_equals(document.activeElement,control,`${description}: Step ${i+1} (backwards)`);
+  }
+}
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-keyboard-behavior.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-keyboard-behavior.tentative.html
index 93930140b3d..3ae653400d1 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-keyboard-behavior.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-keyboard-behavior.tentative.html
@@ -33,14 +33,12 @@
   [interesttarget] {
     interest-target-delay: 0s;
   }
+  [interesttarget].longhide {
+    interest-target-hide-delay: 10000s;
+  }
 </style>
 
 <script>
-const kShift = "\uE008";
-const kMeta = "\uE03d";
-const kControl = "\uE009";
-const kAlt = "\uE00A";
-const kArrowUp = '\uE013';
 const kEscape = '\uE00C';
 function sendLoseInterestHotkey() {
   return new test_driver.Actions()
@@ -48,59 +46,72 @@ function sendLoseInterestHotkey() {
     .keyUp(kEscape)
     .send();
 }
-function sendShowInterestHotkey(extra_modifier) {
-  assert_not_equals(extra_modifier,kAlt);
-  let actions = new test_driver.Actions();
-  if (extra_modifier) {
-    actions.keyDown(extra_modifier);
-  }
-  actions.keyDown(kAlt)
-    .keyDown(kArrowUp)
-    .keyUp(kArrowUp)
-    .keyUp(kAlt);
-  if (extra_modifier) {
-    actions.keyUp(extra_modifier);
-  }
-  return actions.send();
-}
 const allInterestTargetElements = document.querySelectorAll('#examples [interesttarget]');
-function verifyInterest(onlyElement,description) {
+function verifyInterest(onlyElements,description) {
+  if (!(onlyElements instanceof Array)) {
+    onlyElements = [onlyElements];
+  }
   [...allInterestTargetElements, another].forEach(el => {
-    const expectInterest = el == onlyElement;
+    const expectInterest = onlyElements.includes(el);
     assert_equals(el.matches(':has-interest'),expectInterest,`${description}, element ${el.id} should ${expectInterest ? "" : "NOT "}have interest`);
   })
 }
 allInterestTargetElements.forEach(el => {
   const description = `${el.id}`;
   promise_test(async function (t) {
+    t.add_cleanup(() => otherbutton.focus());
     target.hidePopover(); // Just in case
-    el.focus();
+    await focusOn(el);
     assert_equals(document.activeElement,el,'Elements should all be focusable');
-    assert_false(target.matches(':popover-open'),'focusing does not trigger interest');
-    await sendShowInterestHotkey();
-    assert_true(target.matches(':popover-open'),'Pressing the hot key should trigger interest');
+    assert_true(target.matches(':popover-open'),'Focusing should trigger interest');
+    verifyInterest(el,`After show interest in ${el.id}`);
+    await focusOn(otherbutton);
+    assert_not_equals(document.activeElement,el);
+    assert_false(target.matches(':popover-open'),'Blurring should trigger lose interest');
+    verifyInterest(undefined,`After lose interest in ${el.id}`);
+  },`Basic keyboard focus behavior, ${description}`);
+
+  promise_test(async function (t) {
+    t.add_cleanup(() => otherbutton.focus());
+    target.hidePopover(); // Just in case
+    await focusOn(el);
+    assert_true(target.matches(':popover-open'),'Focusing should trigger interest');
     verifyInterest(el,`After show interest in ${el.id}`);
     await sendLoseInterestHotkey();
     assert_false(target.matches(':popover-open'),'Pressing lose interest hot key should trigger lose interest');
     verifyInterest(undefined,`After lose interest in ${el.id}`);
-  },`Basic keyboard behavior, ${description}`);
-
-  for (const key of ['Shift','Control','Meta']) {
-    extra_key = eval('k' + key);
-    promise_test(async function (t) {
-      target.hidePopover(); // Just in case
-      el.focus();
-      await sendShowInterestHotkey(extra_key);
-      assert_false(target.matches(':popover-open'),'Pressing the hot key with extra modifiers should not trigger interest');
-    },`Extra ${key} modifier on the gain interest hot key, ${description}`);
-  }
+    await focusOn(otherbutton);
+    assert_not_equals(document.activeElement,el);
+    assert_false(target.matches(':popover-open'),'Blurring should do nothing at this point');
+    verifyInterest(undefined,`After blurring ${el.id}`);
+  },`Lose interest hot key behavior, ${description}`);
 
   promise_test(async function (t) {
+    t.add_cleanup(() => otherbutton.focus());
+    // Ensure blurring doesn't immediately lose interest:
+    el.classList.add('longhide');
+    t.add_cleanup(() => (el.classList.remove('longhide')));
+    target.hidePopover(); // Just in case
+    await focusOn(el);
+    assert_true(target.matches(':popover-open'),'Focusing should trigger interest');
+    verifyInterest(el,`After show interest in ${el.id}`);
+    await focusOn(otherbutton);
+    assert_not_equals(document.activeElement,el);
+    assert_true(target.matches(':popover-open'),'Blurring should not immediately lose interest');
+    verifyInterest(el,`After blurring ${el.id}`);
+    // Send lose interest hot key to the other button (not the invoker):
+    await sendLoseInterestHotkey();
+    assert_false(target.matches(':popover-open'),'Pressing lose interest hot key should trigger lose interest');
+    verifyInterest(undefined,`After lose interest in ${el.id}`);
+  },`Lose interest hot key behavior with element not focused, ${description}`);
+
+  promise_test(async function (t) {
+    t.add_cleanup(() => otherbutton.focus());
     target.hidePopover(); // Just in case
     target.addEventListener('interest', (e) => e.preventDefault(), {once: true});
-    el.focus();
-    await sendShowInterestHotkey();
+    await focusOn(el);
     assert_false(target.matches(':popover-open'));
+    verifyInterest(undefined,`Nothing has interest, ${el.id}`);
   }, `canceling the interest event stops behavior, ${description}`);
 
   let events = [];
@@ -112,19 +123,16 @@ allInterestTargetElements.forEach(el => {
     element.addEventListener('loseinterest',(e) => events.push(`${e.target.id} loseinterest`),{signal});
   }
   promise_test(async function (t) {
+    t.add_cleanup(() => otherbutton.focus());
     target.hidePopover(); // Just in case
     anothertarget.hidePopover(); // Just in case
     events = [];
     addListeners(t,target);
     addListeners(t,anothertarget);
-    el.focus();
-    await sendShowInterestHotkey();
+    await focusOn(el);
     assert_array_equals(events,['target interest'],'first hotkey');
     verifyInterest(el,`After show interest in ${el.id}`);
-    another.focus();
-    assert_array_equals(events,['target interest'],'focusing another element does not change interest');
-    verifyInterest(el,`After focus on ${another.id}`);
-    await sendShowInterestHotkey();
+    await focusOn(another);
     assert_array_equals(events,['target interest','target loseinterest','anothertarget interest'],
         'showing interest in another trigger should lose interest in the first, then gain interest in second');
     verifyInterest(another,`After show interest in ${another.id}`);
@@ -136,27 +144,28 @@ allInterestTargetElements.forEach(el => {
   }, `Showing interest in a second element loses interest in the first, ${description}`);
 
   promise_test(async function (t) {
+    t.add_cleanup(() => otherbutton.focus());
     target.hidePopover(); // Just in case
     anothertarget.hidePopover(); // Just in case
     events = [];
     addListeners(t,target);
     addListeners(t,anothertarget);
-    el.focus();
-    await sendShowInterestHotkey();
-    another.focus();
+    await focusOn(el);
     assert_array_equals(events,['target interest'],'setup');
     verifyInterest(el,`After show interest in ${el.id}`);
     target.addEventListener('loseinterest',(e) => e.preventDefault(),{once: true});
-    await sendShowInterestHotkey();
-    assert_array_equals(events,['target interest','target loseinterest'],
-        'the loseinterest listener should fire, but anothertarget should not get interest');
-    verifyInterest(el,`After show interest in ${another.id}`);
-    el.focus();
+    await focusOn(another);
+    assert_array_equals(events,['target interest','target loseinterest','anothertarget interest'],
+        'the loseinterest listener should fire, and anothertarget should still get interest');
+    events = [];
+    verifyInterest([el,another],`${el.id} should still have interest because loseinterest was cancelled`);
+    assert_false(target.matches(':popover-open'),'anothertarget popover opens, closing target');
+    assert_true(anothertarget.matches(':popover-open'));
     await sendLoseInterestHotkey();
-    assert_array_equals(events,['target interest','target loseinterest','target loseinterest'],'Another event fired');
+    assert_array_equals(events,['target loseinterest','anothertarget loseinterest'],'Fire loseinterest in both active elements');
     assert_false(target.matches(':popover-open'));
     assert_false(anothertarget.matches(':popover-open'));
-    verifyInterest(undefined,`After lose interest in ${el.id}`);
+    verifyInterest(undefined,`Nothing has interest now`);
   }, `Cancelling loseinterest caused by keyboard-gained interest cancels interest, ${description}`);
 });
 </script>
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-keyboard-invalidation.tentative.html b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-keyboard-invalidation.tentative.html
index a7b9724d9c8..f6d572a2ef2 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-keyboard-invalidation.tentative.html
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/interesttarget-keyboard-invalidation.tentative.html
@@ -25,24 +25,16 @@
   :root:has(:has-interest) #b5 {
     background-color: green;
   }
+  [interesttarget] {
+    interest-target-delay: 0s;
+  }
 </style>
 
 <script>
-const kAlt = "\uE00A";
-const kArrowUp = '\uE013';
-function keyboardActivate() {
-  return new test_driver.Actions()
-    .keyDown(kAlt)
-    .keyDown(kArrowUp)
-    .keyUp(kArrowUp)
-    .keyUp(kAlt)
-    .send();
-}
 buttons = Array.from(document.querySelectorAll('[interesttarget]'));
 async function runTest() {
   for (const b of buttons) {
     b.focus();
-    await keyboardActivate();
   }
   document.documentElement.classList.remove("reftest-wait");
 }
diff --git a/tests/wpt/tests/html/semantics/the-button-element/interest-target/resources/invoker-utils.js b/tests/wpt/tests/html/semantics/the-button-element/interest-target/resources/invoker-utils.js
index b89a14ee16c..67d2aa841c9 100644
--- a/tests/wpt/tests/html/semantics/the-button-element/interest-target/resources/invoker-utils.js
+++ b/tests/wpt/tests/html/semantics/the-button-element/interest-target/resources/invoker-utils.js
@@ -14,6 +14,10 @@ async function clickOn(element) {
       .send();
   await waitForRender();
 }
+async function focusOn(element) {
+  element.focus();
+  await waitForRender();
+}
 async function hoverOver(element) {
   await waitForRender();
   let rect = element.getBoundingClientRect();
diff --git a/tests/wpt/tests/infrastructure/reftest/green.html b/tests/wpt/tests/infrastructure/reftest/green.html
index 38167bb58d5..0c9676a7fdc 100644
--- a/tests/wpt/tests/infrastructure/reftest/green.html
+++ b/tests/wpt/tests/infrastructure/reftest/green.html
@@ -1,3 +1,6 @@
 <style>
-:root {background-color:green}
-</style>
\ No newline at end of file
+:root {
+  print-color-adjust: exact;
+  background-color: green;
+}
+</style>
diff --git a/tests/wpt/tests/infrastructure/reftest/reftest_wait_0-print.html b/tests/wpt/tests/infrastructure/reftest/reftest_wait_0-print.html
index fec62a3cae0..5cbca7a30a4 100644
--- a/tests/wpt/tests/infrastructure/reftest/reftest_wait_0-print.html
+++ b/tests/wpt/tests/infrastructure/reftest/reftest_wait_0-print.html
@@ -2,7 +2,10 @@
 <title>Test with reftest-wait</title>
 <link rel=match href=green.html>
 <style>
-:root {background-color:red}
+  :root {
+    print-color-adjust: exact;
+    background-color:red
+  }
 </style>
 <script>
 setTimeout(function() {
diff --git a/tests/wpt/tests/interfaces/ppa.idl b/tests/wpt/tests/interfaces/ppa.idl
index ef3eb360bdf..3524d503c18 100644
--- a/tests/wpt/tests/interfaces/ppa.idl
+++ b/tests/wpt/tests/interfaces/ppa.idl
@@ -51,6 +51,10 @@ dictionary PrivateAttributionConversionOptions {
   unsigned long maxValue = 1;
 };
 
+enum PrivateAttributionLogic {
+  "last-touch",
+};
+
 dictionary PrivateAttributionConversionResult {
   required Uint8Array report;
 };
@@ -59,7 +63,3 @@ dictionary PrivateAttributionConversionResult {
 partial interface PrivateAttribution {
   Promise<PrivateAttributionConversionResult> measureConversion(PrivateAttributionConversionOptions options);
 };
-
-enum PrivateAttributionLogic {
-  "last-touch",
-};
diff --git a/tests/wpt/tests/interfaces/screen-capture.idl b/tests/wpt/tests/interfaces/screen-capture.idl
index 45fd0dd72c5..db9282ce0a5 100644
--- a/tests/wpt/tests/interfaces/screen-capture.idl
+++ b/tests/wpt/tests/interfaces/screen-capture.idl
@@ -71,6 +71,7 @@ partial dictionary MediaTrackSettings {
   DOMString cursor;
   boolean restrictOwnAudio;
   boolean suppressLocalAudioPlayback;
+  double screenPixelRatio;
 };
 
 partial dictionary MediaTrackCapabilities {
diff --git a/tests/wpt/tests/interfaces/speech-api.idl b/tests/wpt/tests/interfaces/speech-api.idl
index bc0635fa3f2..5bc9df337dd 100644
--- a/tests/wpt/tests/interfaces/speech-api.idl
+++ b/tests/wpt/tests/interfaces/speech-api.idl
@@ -19,7 +19,7 @@ interface SpeechRecognition : EventTarget {
     undefined start(MediaStreamTrack audioTrack);
     undefined stop();
     undefined abort();
-    static Promise<boolean> availableOnDevice(DOMString lang);
+    static Promise<AvailabilityStatus> availableOnDevice(DOMString lang);
     static Promise<boolean> installOnDevice(DOMString lang);
 
     // event methods
@@ -52,6 +52,13 @@ enum SpeechRecognitionMode {
     "cloud-only", // Cloud speech recognition only.
 };
 
+enum AvailabilityStatus {
+    "unavailable",
+    "downloadable",
+    "downloading",
+    "available"
+};
+
 [Exposed=Window]
 interface SpeechRecognitionErrorEvent : Event {
     constructor(DOMString type, SpeechRecognitionErrorEventInit eventInitDict);
diff --git a/tests/wpt/tests/interfaces/webrtc-stats.idl b/tests/wpt/tests/interfaces/webrtc-stats.idl
index ac820c7c9dc..1e7a2648bbb 100644
--- a/tests/wpt/tests/interfaces/webrtc-stats.idl
+++ b/tests/wpt/tests/interfaces/webrtc-stats.idl
@@ -38,6 +38,10 @@ dictionary RTCCodecStats : RTCStats {
 
 dictionary RTCReceivedRtpStreamStats : RTCRtpStreamStats {
              unsigned long long   packetsReceived;
+             unsigned long long   packetsReceivedWithEct1;
+             unsigned long long   packetsReceivedWithCe;
+             unsigned long long   packetsReportedAsLost;
+             unsigned long long   packetsReportedAsLostButRecovered;
              long long            packetsLost;
              double               jitter;
 };
@@ -107,11 +111,13 @@ dictionary RTCRemoteInboundRtpStreamStats : RTCReceivedRtpStreamStats {
              double               totalRoundTripTime;
              double               fractionLost;
              unsigned long long   roundTripTimeMeasurements;
+             unsigned long long   packetsWithBleachedEct1Marking;
 };
 
 dictionary RTCSentRtpStreamStats : RTCRtpStreamStats {
-             unsigned long long packetsSent;
-             unsigned long long bytesSent;
+            unsigned long long packetsSent;
+            unsigned long long bytesSent;
+            unsigned long long packetsSentWithEct1;
 };
 
 dictionary RTCOutboundRtpStreamStats : RTCSentRtpStreamStats {
@@ -119,6 +125,7 @@ dictionary RTCOutboundRtpStreamStats : RTCSentRtpStreamStats {
              DOMString            mediaSourceId;
              DOMString            remoteId;
              DOMString            rid;
+             unsigned long        encodingIndex;
              unsigned long long   headerBytesSent;
              unsigned long long   retransmittedPacketsSent;
              unsigned long long   retransmittedBytesSent;
@@ -225,6 +232,8 @@ dictionary RTCTransportStats : RTCStats {
              RTCDtlsRole           dtlsRole;
              DOMString             srtpCipher;
              unsigned long         selectedCandidatePairChanges;
+             unsigned long         ccfbMessagesSent;
+       unsigned long         ccfbMessagesReceived;
 };
 
 enum RTCDtlsRole {
diff --git a/tests/wpt/tests/interfaces/webrtc.idl b/tests/wpt/tests/interfaces/webrtc.idl
index 174ead6261c..b6323136b09 100644
--- a/tests/wpt/tests/interfaces/webrtc.idl
+++ b/tests/wpt/tests/interfaces/webrtc.idl
@@ -163,7 +163,7 @@ dictionary RTCLocalSessionDescriptionInit {
 
 [Exposed=Window]
 interface RTCIceCandidate {
-  constructor(optional RTCIceCandidateInit candidateInitDict = {});
+  constructor(optional RTCLocalIceCandidateInit candidateInitDict = {});
   readonly attribute DOMString candidate;
   readonly attribute DOMString? sdpMid;
   readonly attribute unsigned short? sdpMLineIndex;
@@ -179,7 +179,7 @@ interface RTCIceCandidate {
   readonly attribute unsigned short? relatedPort;
   readonly attribute DOMString? usernameFragment;
   readonly attribute RTCIceServerTransportProtocol? relayProtocol;
-  readonly attribute DOMString? url;
+  readonly attribute USVString? url;
   RTCIceCandidateInit toJSON();
 };
 
@@ -190,6 +190,11 @@ dictionary RTCIceCandidateInit {
   DOMString? usernameFragment = null;
 };
 
+dictionary RTCLocalIceCandidateInit : RTCIceCandidateInit {
+  RTCIceServerTransportProtocol? relayProtocol = null;
+  USVString? url = null;
+};
+
 enum RTCIceProtocol {
   "udp",
   "tcp"
@@ -218,7 +223,7 @@ enum RTCIceServerTransportProtocol {
 interface RTCPeerConnectionIceEvent : Event {
   constructor(DOMString type, optional RTCPeerConnectionIceEventInit eventInitDict = {});
   readonly attribute RTCIceCandidate? candidate;
-  readonly attribute DOMString? url;
+  readonly attribute USVString? url;
 };
 
 dictionary RTCPeerConnectionIceEventInit : EventInit {
diff --git a/tests/wpt/tests/lint.ignore b/tests/wpt/tests/lint.ignore
index c8b98fb5890..955e5df4907 100644
--- a/tests/wpt/tests/lint.ignore
+++ b/tests/wpt/tests/lint.ignore
@@ -393,6 +393,7 @@ SET TIMEOUT: css/css-fonts/font-display/font-display-preload.html
 SET TIMEOUT: css/css-view-transitions/no-painting-while-render-blocked.html
 SET TIMEOUT: document-policy/font-display/override-to-optional.tentative.html
 SET TIMEOUT: feature-policy/experimental-features/resources/focus-without-user-activation-iframe-tentative.html
+SET TIMEOUT: geolocation/watchposition-timeout.https.window.js
 SET TIMEOUT: permissions-policy/experimental-features/resources/focus-without-user-activation-iframe-tentative.html
 SET TIMEOUT: html/browsers/windows/auxiliary-browsing-contexts/resources/close-opener.html
 SET TIMEOUT: html/cross-origin-embedder-policy/resources/reporting-worker.js
diff --git a/tests/wpt/tests/media-capabilities/decodingInfo-webrtc.any.js b/tests/wpt/tests/media-capabilities/decodingInfo-webrtc.any.js
index b38c8e67f9c..34ce5fb2921 100644
--- a/tests/wpt/tests/media-capabilities/decodingInfo-webrtc.any.js
+++ b/tests/wpt/tests/media-capabilities/decodingInfo-webrtc.any.js
@@ -307,7 +307,6 @@ promise_test(t => {
 }, "Test that decodingInfo rejects if the audio configuration contentType has one parameter that isn't codecs");
 
 promise_test(t => {
-  bt709Config.contentType = 'video/webm; codecs="vp09.00.10.08"';
   return promise_rejects_js(t, TypeError, navigator.mediaCapabilities.decodingInfo({
         type: 'webrtc',
         video: videoConfigurationWithDynamicRange,
diff --git a/tests/wpt/tests/media-capabilities/decodingInfoEncryptedMedia.http.html b/tests/wpt/tests/media-capabilities/decodingInfoEncryptedMedia.http.html
index 267b23431b7..5c4dc43fc9b 100644
--- a/tests/wpt/tests/media-capabilities/decodingInfoEncryptedMedia.http.html
+++ b/tests/wpt/tests/media-capabilities/decodingInfoEncryptedMedia.http.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<title>MediaCapabilities.decodingInfo() for encrypted media (non-secure context)</title>
+<title>MediaCapabilities.decodingInfo for encrypted media (non-secure context)</title>
 <script src=/resources/testharness.js></script>
 <script src="/resources/testharnessreport.js"></script>
 <script>
@@ -26,6 +26,6 @@ promise_test(t => {
     video: minimalVideoConfiguration,
     keySystemConfiguration: minimalKeySystemConfiguration,
   }));
-}, "Test that decodingInfo() with a keySystemConfiguration fails on a non-secure context.");
+}, "Test that decodingInfo with a keySystemConfiguration fails on a non-secure context.");
 
 </script>
diff --git a/tests/wpt/tests/pointerevents/pointerevent_boundary_events_before_pointerrawupdate.https.html b/tests/wpt/tests/pointerevents/pointerevent_boundary_events_before_pointerrawupdate.https.html
new file mode 100644
index 00000000000..4de52758126
--- /dev/null
+++ b/tests/wpt/tests/pointerevents/pointerevent_boundary_events_before_pointerrawupdate.https.html
@@ -0,0 +1,76 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale:1">
+<title>Pointer boundary events should be fired before `pointerrawupdate`</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script>
+"use strict";
+
+/**
+ * "fire a pointer event" defines as:
+ * > Before firing this event, the user agent SHOULD treat the target as if the
+ * > pointing device has moved over it from the previousTarget for the purpose
+ * > of ensuring event ordering [UIEVENTS]. If the needsOverEvent flag is set,
+ * > a pointerover event is needed even if the target element is the same.
+ *
+ * Thus, pointer boundary events should be fired before `pointerrawupdate`
+ * event if they are required.  This test checks that.
+ */
+
+addEventListener("DOMContentLoaded", () => {
+  promise_test(async () => {
+    let events = [];
+    function logEvent(event) {
+      events.push(event.type);
+    }
+    const initialDiv = document.getElementById("init");
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: initialDiv})
+      .send();
+    const target = document.getElementById("target");
+    for (const type of ["pointerrawupdate", "pointermove",
+                        "pointerenter", "pointerover",
+                        "pointerleave", "pointerout",
+                        "mouseover", "mouseenter"]) {
+      target.addEventListener(type, logEvent);
+    }
+    // Neither "mouseover" nor "mouseenter" should be fired before
+    // "pointerrawupdate", they should be fired after "pointerrawupdate"
+    // at least.
+    target.addEventListener("pointerrawupdate", () => {
+      for (const type of ["mouseover", "mouseenter"]) {
+        target.removeEventListener(type, logEvent);
+      }
+    }, {once: true});
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: target})
+      .send();
+    assert_equals(
+      events.join(", "),
+      [
+        "pointerover",
+        "pointerenter",
+        "pointerrawupdate",
+        "pointermove",
+      ].join(", ")
+    );
+  });
+}, {once: true});
+</script>
+<style>
+div {
+  width: 64px;
+  height: 64px;
+}
+</style>
+<body>
+  <div id="init"></div>
+  <div id="target"></div>
+</body>
+</html>
diff --git a/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_after_adoption_from_child.https.html b/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_after_adoption_from_child.https.html
new file mode 100644
index 00000000000..9b67f776d04
--- /dev/null
+++ b/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_after_adoption_from_child.https.html
@@ -0,0 +1,42 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale:1">
+<title>`pointerrawupdate` events should be fired after the element is moved from the parent doc to a child doc</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script>
+"use strict";
+
+addEventListener("load", () => {
+  promise_test(async () => {
+    const iframe = document.querySelector("iframe");
+    const div = iframe.contentDocument.createElement("div");
+    div.style.width = "100px";
+    div.style.height = "100px";
+    iframe.contentDocument.body.appendChild(div);
+    let pointerrawupdateEvent;
+    div.addEventListener(
+      "pointerrawupdate",
+      event => pointerrawupdateEvent = event,
+      {once: true}
+    );
+    document.body.appendChild(div);
+    div.getBoundingClientRect();
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: div})
+      .pointerMove(1, 1, {origin: div})
+      .send();
+    assert_true(pointerrawupdateEvent !== undefined);
+  });
+}, {once: true});
+</script>
+</head>
+<body>
+  <iframe srcdoc=""></iframe>
+</body>
+</html>
diff --git a/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_after_adoption_from_parent.https.html b/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_after_adoption_from_parent.https.html
new file mode 100644
index 00000000000..132be023178
--- /dev/null
+++ b/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_after_adoption_from_parent.https.html
@@ -0,0 +1,42 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale:1">
+<title>`pointerrawupdate` events should be fired after the element is moved from a child doc to the parent doc</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script>
+"use strict";
+
+addEventListener("load", () => {
+  promise_test(async () => {
+    const iframe = document.querySelector("iframe");
+    const div = document.createElement("div");
+    div.style.width = "100px";
+    div.style.height = "100px";
+    document.body.appendChild(div);
+    let pointerrawupdateEvent;
+    div.addEventListener(
+      "pointerrawupdate",
+      event => pointerrawupdateEvent = event,
+      {once: true}
+    );
+    iframe.contentDocument.body.appendChild(div);
+    div.getBoundingClientRect();
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: div})
+      .pointerMove(1, 1, {origin: div})
+      .send();
+    assert_true(pointerrawupdateEvent !== undefined);
+  });
+}, {once: true});
+</script>
+</head>
+<body>
+  <iframe srcdoc=""></iframe>
+</body>
+</html>
diff --git a/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_flush_pointercapture.https.html b/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_flush_pointercapture.https.html
new file mode 100644
index 00000000000..1d444c75097
--- /dev/null
+++ b/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_flush_pointercapture.https.html
@@ -0,0 +1,78 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale:1">
+<title>Pointer capture state should be updated before `pointerrawupdate`</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script>
+"use strict";
+
+/**
+ * "fire a pointer event" defines:
+ * > If the event is not a gotpointercapture, lostpointercapture, click,
+ * > auxclick or contextmenu event, run the process pending pointer capture
+ * > steps for this PointerEvent.
+ *
+ * This test checks whether `pointerrawupdate` event dispatcher processes
+ * the pending pointer capture state.
+ */
+
+addEventListener("DOMContentLoaded", () => {
+  promise_test(async () => {
+    let events = [];
+    function logEvent(event) {
+      events.push(`${event.type}@${event.target.id ? event.target.id : event.target.nodeName}`);
+    }
+    const initialDiv = document.getElementById("init");
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: initialDiv})
+      .send();
+    const target = document.getElementById("target");
+    const dest = document.getElementById("dest");
+    for (const type of ["pointerdown", "pointerup", "pointermove",
+                        "pointerrawupdate",
+                        "gotpointercapture", "lostpointercapture"]) {
+      target.addEventListener(type, logEvent);
+      dest.addEventListener(type, logEvent);
+    }
+    dest.addEventListener("pointerover", logEvent);
+    target.addEventListener("pointerdown", event => {
+      event.target.setPointerCapture(event.pointerId);
+    });
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: target})
+      .pointerDown()
+      .pointerMove(0, 0, {origin: dest})
+      .pointerUp()
+      .send();
+    assert_equals(
+      events.join(", "),
+      [
+        "pointerrawupdate@target", "pointermove@target", "pointerdown@target",
+        // "gotpointercapture" should be fired before "pointerrawupdate"
+        "gotpointercapture@target", "pointerrawupdate@target", "pointermove@target",
+        "pointerup@target", "lostpointercapture@target",
+        // Finally, "pointerover" should be fired on the destination
+        "pointerover@dest",
+      ].join(", ")
+    );
+  });
+}, {once: true});
+</script>
+<style>
+div {
+  min-height: 64px;
+}
+</style>
+</head>
+<body>
+  <div id="init"></div>
+  <div id="target"></div>
+  <div id="dest"></div>
+</body>
+</html>
diff --git a/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_remove_target.https.html b/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_remove_target.https.html
new file mode 100644
index 00000000000..2a7af77af0d
--- /dev/null
+++ b/tests/wpt/tests/pointerevents/pointerevent_pointerrawupdate_remove_target.https.html
@@ -0,0 +1,149 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale:1">
+<title>If a `pointerrawupdate` listener removes the target, `pointermove` should be fired its connected ancestor</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script>
+"use strict";
+
+/**
+ * `pointerrawupdate` is defined as:
+ * > The target of pointerrawupdate events might be different from the
+ * > pointermove events due to the fact that pointermove events might get
+ * > delayed or coalesced, and the final position of the event which is used
+ * > for finding the target could be different from its coalesced events.
+ *
+ * This checks whether `pointermove` is fired on the latest element underneath
+ * the pointer when the `pointerrawupdate` event listener removes its target.
+ */
+
+addEventListener("DOMContentLoaded", () => {
+  const testContainer = document.getElementById("testContainer");
+  let events = [];
+  function logEvent(event) {
+    if (event.eventPhase != Event.AT_TARGET) {
+      return;
+    }
+    events.push(`${event.type}@${event.target.id ? event.target.id : `<${event.target.nodeName}>`}`);
+  }
+  promise_test(async () => {
+    testContainer.innerHTML = "<div id=container><div id=init></div><div id=target></div></div>";
+    const initialDiv = document.getElementById("init");
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: initialDiv})
+      .send();
+    const target = document.getElementById("target");
+    for (const type of ["pointerrawupdate", "pointermove", "pointerover"]) {
+      target.addEventListener(type, logEvent);
+    }
+    const container = document.getElementById("container");
+    for (const type of ["pointerrawupdate", "pointermove", "pointerover"]) {
+      container.addEventListener(type, logEvent);
+    }
+    target.addEventListener("pointerrawupdate", () => {
+      target.remove();
+    }, {once: true});
+    events = [];
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: target})
+      .send();
+    assert_equals(
+      events.join(","),
+      [
+        "pointerover@target",
+        "pointerrawupdate@target",
+        "pointerover@container",
+        "pointermove@container",
+      ].join(",")
+    );
+  }, `"pointermove" and its preceding boundary events should be fired on parent if "pointerrawupdate" event listener removes its target`);
+
+  promise_test(async () => {
+    testContainer.innerHTML =
+      "<div id=container><div id=container2><div id=init></div><div id=target></div></div></div>";
+    const initialDiv = document.getElementById("init");
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: initialDiv})
+      .send();
+    const target = document.getElementById("target");
+    for (const type of ["pointerrawupdate", "pointermove", "pointerover"]) {
+      target.addEventListener(type, logEvent);
+    }
+    const container = document.getElementById("container");
+    for (const type of ["pointerrawupdate", "pointermove", "pointerover"]) {
+      container.addEventListener(type, logEvent);
+    }
+    target.addEventListener("pointerrawupdate", () => {
+      target.parentNode.remove();
+    }, {once: true});
+    events = [];
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: target})
+      .send();
+    assert_equals(
+      events.join(","),
+      [
+        "pointerover@target",
+        "pointerrawupdate@target",
+        "pointerover@container",
+        "pointermove@container",
+      ].join(",")
+    );
+  }, `"pointermove" and its preceding boundary events should be fired on ancestor if "pointerrawupdate" event listener removes its target parent`);
+
+  promise_test(async () => {
+    testContainer.innerHTML =
+      "<div id=container><div id=init></div><iframe srcdoc='<div id=target style=height:64px></div>'></iframe></div>";
+    const iframe = document.querySelector("iframe");
+    if (iframe.contentDocument.readyState != "complete") {
+      await new Promise(resolve => iframe.addEventListener("load", resolve, {once: true}));
+    }
+    const initialDiv = document.getElementById("init");
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: initialDiv})
+      .send();
+    const target = iframe.contentDocument.getElementById("target");
+    for (const type of ["pointerrawupdate", "pointermove", "pointerover"]) {
+      target.addEventListener(type, logEvent);
+    }
+    const container = document.getElementById("container");
+    for (const type of ["pointerrawupdate", "pointermove", "pointerover"]) {
+      container.addEventListener(type, logEvent);
+    }
+    target.addEventListener("pointerrawupdate", () => {
+      iframe.remove();
+    }, {once: true});
+    events = [];
+    await new test_driver.Actions()
+      .pointerMove(0, 0, {origin: target})
+      .send();
+    assert_equals(
+      events.join(", "),
+      [
+        "pointerover@target",
+        "pointerrawupdate@target",
+        "pointerover@container",
+        "pointermove@container",
+      ].join(", ")
+    );
+  }, `"pointermove" and its preceding boundary events should be fired on parent if "pointerrawupdate" event listener removes its document`);
+}, {once: true});
+</script>
+<style>
+#container, #container2 {
+  min-height: 200px;
+}
+#target, #init {
+  width: 64px;
+  height: 64px;
+}
+
+</style>
+<body><div id="testContainer"></div></body>
+</html>
diff --git a/tests/wpt/tests/sanitizer-api/sanitizer-config.tentative.html b/tests/wpt/tests/sanitizer-api/sanitizer-config.tentative.html
index 4a7b7ecc517..a782b5a7e07 100644
--- a/tests/wpt/tests/sanitizer-api/sanitizer-config.tentative.html
+++ b/tests/wpt/tests/sanitizer-api/sanitizer-config.tentative.html
@@ -81,6 +81,12 @@ for (key of ["elements", "removeElements", "replaceWithChildrenElements"]) {
   test_normalization(key,
     {name: "b"},
     {name: "b", namespace: "http://www.w3.org/1999/xhtml"});
+  test_normalization(key,
+    {name: "b", namespace: null},
+    {name: "b", namespace: null});
+  test_normalization(key,
+    {name: "b", namespace: ""},
+    {name: "b", namespace: null});
   test_normalization(key,
     {name: "p", namespace: "http://www.w3.org/1999/xhtml"},
     {name: "p", namespace: "http://www.w3.org/1999/xhtml"});
diff --git a/tests/wpt/tests/sanitizer-api/sethtml-tree-construction.sub.dat b/tests/wpt/tests/sanitizer-api/sethtml-tree-construction.sub.dat
index 47cc159df1f..cfbc74d1128 100644
--- a/tests/wpt/tests/sanitizer-api/sethtml-tree-construction.sub.dat
+++ b/tests/wpt/tests/sanitizer-api/sethtml-tree-construction.sub.dat
@@ -595,6 +595,16 @@ test<div>p</div>tt<p>div</p><test>test</test>
 | <div>
 |   <b>
 
+#data
+<table><div><td>
+#config
+{ "replaceWithChildrenElements": ["table"] }
+#document
+| <div>
+| <tbody>
+|   <tr>
+|     <td>
+
 #data
 <template><div>Hello</div></template>
 #config
diff --git a/tests/wpt/tests/sanitizer-api/sethtml-xml-document.html b/tests/wpt/tests/sanitizer-api/sethtml-xml-document.html
new file mode 100644
index 00000000000..73b1deb1abf
--- /dev/null
+++ b/tests/wpt/tests/sanitizer-api/sethtml-xml-document.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Test that setHTML parses as HTML even in an XML document</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/html5lib-testcase-support.js"></script>
+</head>
+<body>
+<script type="html5lib-tests">
+#data
+Hello!
+#document
+| "Hello!"
+
+#data
+<br>
+#document
+| <br>
+
+#data
+<p>Hi</p>
+#document
+| <p>
+|   "Hi"
+
+#data
+<iframe></iframe><p>text</p>
+#document
+| <p>
+|   "text"
+
+</script>
+<script>
+html5lib_testcases_from_script().forEach((testcase, index) => {
+  test(_ => {
+    const doc = document.implementation.createDocument("application/xml", "xml");
+    const context = doc.documentElement;
+    context.setHTML(testcase.data);
+    assert_testcase(context, testcase);
+  }, `Testcase #${index} with xmlDoc.setHTML("${testcase.data}")`);
+});
+</script>
+</body>
+</html>
diff --git a/tests/wpt/tests/scheduler/post-task-multiple-scheduler-order.window.js b/tests/wpt/tests/scheduler/post-task-multiple-scheduler-order.window.js
new file mode 100644
index 00000000000..14c7013d526
--- /dev/null
+++ b/tests/wpt/tests/scheduler/post-task-multiple-scheduler-order.window.js
@@ -0,0 +1,37 @@
+// META: title=Scheduler: Tasks run order when multiple scheduler interfere the same event loop
+promise_test(async t => {
+
+  const iframe = document.createElement("iframe");
+
+  iframe.onload = async function() {
+    const runOrder = [];
+    const tasks = [];
+
+    tasks.push(window.scheduler.postTask(function(){runOrder.push("outer")}));
+    tasks.push(iframe.contentWindow.scheduler.postTask(function(){runOrder.push("inner")}));
+
+    await Promise.all(tasks);
+
+    assert_equals(runOrder.toString(),'outer,inner');
+  }
+
+  document.body.appendChild(iframe);
+}, 'Test scheduler.postTask() from two different schedulers with the same priority will run based on their enqueue order.');
+
+promise_test(async t => {
+  const iframe = document.createElement("iframe");
+
+  iframe.onload = async function() {
+    const runOrder = [];
+    const tasks = [];
+
+    tasks.push(window.scheduler.postTask(function(){runOrder.push("outer")}));
+    tasks.push(iframe.contentWindow.scheduler.postTask(function(){runOrder.push("inner")}, {priority: "user-blocking"}));
+
+    await Promise.all(tasks);
+
+    assert_equals(runOrder.toString(),'inner,outer');
+  }
+
+  document.body.appendChild(iframe);
+}, 'Test scheduler.postTask() from two different schedulers with different priorities will run based on their priorities');
diff --git a/tests/wpt/tests/scheduler/tentative/yield/yield-abort.any.js b/tests/wpt/tests/scheduler/tentative/yield/yield-abort.any.js
index 94a8b2cb2b8..d5119b1c163 100644
--- a/tests/wpt/tests/scheduler/tentative/yield/yield-abort.any.js
+++ b/tests/wpt/tests/scheduler/tentative/yield/yield-abort.any.js
@@ -20,4 +20,15 @@ promise_test(t => {
     const p = scheduler.yield();
     await promise_rejects_dom(t, 'AbortError', p);
   }, {signal});
-}, 'yield() aborted in a separate task');
+}, 'yield() aborted by TaskController in a separate task');
+
+promise_test(t => {
+  const controller = new AbortController();
+  const signal = controller.signal;
+  return scheduler.postTask(async () => {
+    scheduler.postTask(async () => {controller.abort();}, {priority: 'user-blocking'});
+    t.step(() => assert_false(signal.aborted));
+    const p = scheduler.yield();
+    await promise_rejects_dom(t, 'AbortError', p);
+  }, {signal});
+}, 'yield() aborted by AbortController in a separate task');
diff --git a/tests/wpt/tests/screen-capture/tentative/getdisplaymedia-captured-surface-resolution.https.html b/tests/wpt/tests/screen-capture/tentative/getdisplaymedia-captured-surface-resolution.https.html
index 6064bced90b..31b62943eb1 100644
--- a/tests/wpt/tests/screen-capture/tentative/getdisplaymedia-captured-surface-resolution.https.html
+++ b/tests/wpt/tests/screen-capture/tentative/getdisplaymedia-captured-surface-resolution.https.html
@@ -35,16 +35,12 @@
       assert_not_equals(video.srcObject, null);
       let settings = track.getSettings();
       let capabilities = track.getCapabilities();
-      assert_greater_than(settings.physicalWidth, 0);
-      assert_greater_than(settings.physicalHeight, 0);
-      assert_equals(settings.physicalWidth / screenDetails.screens[0].devicePixelRatio, settings.logicalWidth);
-      assert_equals(settings.physicalHeight / screenDetails.screens[0].devicePixelRatio, settings.logicalHeight);
+      assert_greater_than(capabilities.width.max, 0);
+      assert_greater_than(capabilities.height.max, 0);
       assert_equals(screenDetails.screens[0].devicePixelRatio, settings.screenPixelRatio);
-      assert_equals(capabilities.width.max, settings.physicalWidth);
-      assert_equals(capabilities.height.max, settings.physicalHeight);
     };
     setTimeout(() => { video.requestVideoFrameCallback(onFrame); }, 100);
-  }, "getDisplayMedia() and resolution for captured surface type monitor");
+  }, "getDisplayMedia() and screenPixelRatio for captured surface type monitor");
 
   promise_test(async t => {
     var video = document.createElement("video");
@@ -60,16 +56,12 @@
       assert_not_equals(video.srcObject, null);
       let settings = track.getSettings();
       let capabilities = track.getCapabilities();
-      assert_greater_than(settings.physicalWidth, 0);
-      assert_greater_than(settings.physicalHeight, 0);
-      assert_equals(settings.physicalWidth / screenDetails.screens[0].devicePixelRatio, settings.logicalWidth);
-      assert_equals(settings.physicalHeight / screenDetails.screens[0].devicePixelRatio, settings.logicalHeight);
+      assert_greater_than(capabilities.width.max, 0);
+      assert_greater_than(capabilities.height.max, 0);
       assert_equals(screenDetails.screens[0].devicePixelRatio, settings.screenPixelRatio);
-      assert_equals(capabilities.width.max, settings.physicalWidth);
-      assert_equals(capabilities.height.max, settings.physicalHeight);
     };
     setTimeout(() => { video.requestVideoFrameCallback(onFrame); }, 100);
-  }, "getDisplayMedia() and resolution for captured surface type window");
+  }, "getDisplayMedia() and screenPixelRatio for captured surface type window");
 
   promise_test(async t => {
     var video = document.createElement("video");
@@ -83,16 +75,12 @@
       assert_not_equals(video.srcObject, null);
       let settings = track.getSettings();
       let capabilities = track.getCapabilities();
-      assert_greater_than(settings.physicalWidth, 0);
-      assert_greater_than(settings.physicalHeight, 0);
-      assert_equals(settings.physicalWidth / window.devicePixelRatio, settings.logicalWidth);
-      assert_equals(settings.physicalHeight / window.devicePixelRatio, settings.logicalHeight);
+      assert_greater_than(capabilities.width.max, 0);
+      assert_greater_than(capabilities.height.max, 0);
       assert_equals(window.devicePixelRatio, settings.screenPixelRatio);
-      assert_equals(capabilities.width.max, settings.physicalWidth);
-      assert_equals(capabilities.height.max, settings.physicalHeight);
     };
     setTimeout(() => { video.requestVideoFrameCallback(onFrame); }, 100);
-  }, "getDisplayMedia() and resolution for captured surface type browser");
+  }, "getDisplayMedia() and screenPixelRatio for captured surface type browser");
 
   promise_test(async t => {
     var video = document.createElement("video");
@@ -110,8 +98,8 @@
       let capabilities = track.getCapabilities();
       let oldWidth = settings.width;
       let oldHeight = settings.height;
-      let oldPhysicalWidth = settings.physicalWidth;
-      let oldPhysicalHeight = settings.physicalHeight;
+      let oldCapbilitiesWidth = capabilities.width.max;
+      let oldCapabilitiesHeight = capabilities.height.max;
       assert_greater_than(settings.width, 0);
       assert_greater_than(settings.height, 0);
 
@@ -119,16 +107,12 @@
       settings = track.getSettings();
       assert_less_than_equal(settings.width, oldWidth);
       assert_less_than_equal(settings.height, oldHeight);
-      assert_equals(oldPhysicalWidth, settings.physicalWidth);
-      assert_equals(oldPhysicalHeight, settings.physicalHeight);
-      assert_equals(oldPhysicalWidth / screenDetails.screens[0].devicePixelRatio, settings.logicalWidth);
-      assert_equals(oldPhysicalHeight / screenDetails.screens[0].devicePixelRatio, settings.logicalHeight);
       assert_equals(screenDetails.screens[0].devicePixelRatio, settings.screenPixelRatio);
-      assert_equals(capabilities.width.max, settings.physicalWidth);
-      assert_equals(capabilities.height.max, settings.physicalHeight);
+      assert_equals(capabilities.width.max, oldCapbilitiesWidth);
+      assert_equals(capabilities.height.max, oldCapabilitiesHeight);
     };
     setTimeout(() => { video.requestVideoFrameCallback(onFrame); }, 100);
-  }, "applyConstraints() should not change the physical and logical size of captured surface type monitor");
+  }, "applyConstraints() should not change the capabilities resolution and screenPixelRatio of captured surface type monitor");
 
   promise_test(async t => {
     var video = document.createElement("video");
@@ -146,8 +130,8 @@
       let capabilities = track.getCapabilities();
       let oldWidth = settings.width;
       let oldHeight = settings.height;
-      let oldPhysicalWidth = settings.physicalWidth;
-      let oldPhysicalHeight = settings.physicalHeight;
+      let oldCapbilitiesWidth = capabilities.width.max;
+      let oldCapabilitiesHeight = capabilities.height.max;
       assert_greater_than(settings.width, 0);
       assert_greater_than(settings.height, 0);
 
@@ -155,16 +139,12 @@
       settings = track.getSettings();
       assert_less_than_equal(settings.width, oldWidth);
       assert_less_than_equal(settings.height, oldHeight);
-      assert_equals(oldPhysicalWidth, settings.physicalWidth);
-      assert_equals(oldPhysicalHeight, settings.physicalHeight);
-      assert_equals(oldPhysicalWidth / screenDetails.screens[0].devicePixelRatio, settings.logicalWidth);
-      assert_equals(oldPhysicalHeight / screenDetails.screens[0].devicePixelRatio, settings.logicalHeight);
       assert_equals(screenDetails.screens[0].devicePixelRatio, settings.screenPixelRatio);
-      assert_equals(capabilities.width.max, settings.physicalWidth);
-      assert_equals(capabilities.height.max, settings.physicalHeight);
+      assert_equals(capabilities.width.max, oldCapbilitiesWidth);
+      assert_equals(capabilities.height.max, oldCapabilitiesHeight);
     };
     setTimeout(() => { video.requestVideoFrameCallback(onFrame); }, 100);
-  }, "applyConstraints() should not change the physical and logical size of captured surface type window");
+  }, "applyConstraints() should not change the capabilities resolution and screenPixelRatio of captured surface type window");
 
   promise_test(async t => {
     var video = document.createElement("video");
@@ -180,8 +160,8 @@
       let capabilities = track.getCapabilities();
       let oldWidth = settings.width;
       let oldHeight = settings.height;
-      let oldPhysicalWidth = settings.physicalWidth;
-      let oldPhysicalHeight = settings.physicalHeight;
+      let oldCapbilitiesWidth = capabilities.width.max;
+      let oldCapabilitiesHeight = capabilities.height.max;
       assert_greater_than(settings.width, 0);
       assert_greater_than(settings.height, 0);
 
@@ -189,16 +169,12 @@
       settings = track.getSettings();
       assert_less_than_equal(settings.width, oldWidth);
       assert_less_than_equal(settings.height, oldHeight);
-      assert_equals(oldPhysicalWidth, settings.physicalWidth);
-      assert_equals(oldPhysicalHeight, settings.physicalHeight);
-      assert_equals(oldPhysicalWidth / window.devicePixelRatio, settings.logicalWidth);
-      assert_equals(oldPhysicalHeight / window.devicePixelRatio, settings.logicalHeight);
-      assert_equals(window.devicePixelRatio, settings.screenPixelRatio);
-      assert_equals(capabilities.width.max, settings.physicalWidth);
-      assert_equals(capabilities.height.max, settings.physicalHeight);
+      assert_equals(screenDetails.screens[0].devicePixelRatio, settings.screenPixelRatio);
+      assert_equals(capabilities.width.max, oldCapbilitiesWidth);
+      assert_equals(capabilities.height.max, oldCapabilitiesHeight);
     };
     setTimeout(() => { video.requestVideoFrameCallback(onFrame); }, 100);
-  }, "applyConstraints() should not change the physical and logical size of captured surface type browser");
+  }, "applyConstraints() should not change the capabilities resolution and screenPixelRatio of captured surface type browser");
 
 
 </script>
\ No newline at end of file
diff --git a/tests/wpt/tests/scroll-animations/css/printing/animation-timeline-none-with-progress-print.tentative.html b/tests/wpt/tests/scroll-animations/css/printing/animation-timeline-none-with-progress-print.tentative.html
index 54f629dafac..c250b99d6d4 100644
--- a/tests/wpt/tests/scroll-animations/css/printing/animation-timeline-none-with-progress-print.tentative.html
+++ b/tests/wpt/tests/scroll-animations/css/printing/animation-timeline-none-with-progress-print.tentative.html
@@ -10,6 +10,9 @@
     from { transform: translateX(0px); }
     to { transform: translateX(100px); }
   }
+  :root {
+    print-color-adjust: exact;
+  }
 
   #scroller {
     scroll-timeline: --timeline;
diff --git a/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-iframe-print.html b/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-iframe-print.html
index 0e0d42b0084..187d9deffe4 100644
--- a/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-iframe-print.html
+++ b/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-iframe-print.html
@@ -30,6 +30,7 @@
       to { transform: translateY(200px); }
     }
     html {
+      print-color-adjust: exact;
       min-height: 100%;
       padding-bottom: 100px;
     }
diff --git a/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-print-ref.html b/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-print-ref.html
index 6610f7a5a7e..fa8371a5f1e 100644
--- a/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-print-ref.html
+++ b/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-print-ref.html
@@ -2,6 +2,7 @@
 <title>Reference for default scroll() timeline</title>
 <style>
   html {
+    print-color-adjust: exact;
     min-height: 100%;
     padding-bottom: 100px;
   }
diff --git a/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-print.tentative.html b/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-print.tentative.html
index 3f25cc93dba..0c0e744e55a 100644
--- a/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-print.tentative.html
+++ b/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-default-print.tentative.html
@@ -13,6 +13,7 @@
   }
 
   html {
+    print-color-adjust: exact;
     min-height: 100%;
     padding-bottom: 100px;
   }
diff --git a/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-specified-scroller-print.html b/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-specified-scroller-print.html
index dd4add49b0f..53905d752a2 100644
--- a/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-specified-scroller-print.html
+++ b/tests/wpt/tests/scroll-animations/css/printing/scroll-timeline-specified-scroller-print.html
@@ -12,6 +12,10 @@
     to { transform: translateX(100px); }
   }
 
+  :root {
+    print-color-adjust: exact;
+  }
+
   #scroller {
     scroll-timeline: --timeline;
     overflow: scroll;
diff --git a/tests/wpt/tests/scroll-animations/css/scroll-timeline-default-iframe-ref.html b/tests/wpt/tests/scroll-animations/css/scroll-timeline-default-iframe-ref.html
index 1ab5646c8bd..e1c48f67ec8 100644
--- a/tests/wpt/tests/scroll-animations/css/scroll-timeline-default-iframe-ref.html
+++ b/tests/wpt/tests/scroll-animations/css/scroll-timeline-default-iframe-ref.html
@@ -4,6 +4,7 @@
   <html>
   <style>
     html {
+      print-color-adjust: exact;
       min-height: 100%;
       padding-bottom: 100px;
     }
diff --git a/tests/wpt/tests/scroll-animations/css/view-timeline-range-animation.html b/tests/wpt/tests/scroll-animations/css/view-timeline-range-animation.html
index 9e5993b63a8..0998a9909f9 100644
--- a/tests/wpt/tests/scroll-animations/css/view-timeline-range-animation.html
+++ b/tests/wpt/tests/scroll-animations/css/view-timeline-range-animation.html
@@ -229,4 +229,11 @@
     endOffset: 880
   }, template_with_scope, '(scoped)');
 
+  test_animation_range({
+    rangeStart: 'scroll 100px',
+    rangeEnd: 'scroll 800px',
+    startOffset: 100,
+    endOffset: 800
+  });
+
 </script>
diff --git a/tests/wpt/tests/scroll-animations/scroll-timelines/scroll-animation.html b/tests/wpt/tests/scroll-animations/scroll-timelines/scroll-animation.html
index e3544762f60..cca59eff056 100644
--- a/tests/wpt/tests/scroll-animations/scroll-timelines/scroll-animation.html
+++ b/tests/wpt/tests/scroll-animations/scroll-timelines/scroll-animation.html
@@ -133,6 +133,10 @@ promise_test(async t => {
     scroller.scrollTop =  maxScroll;
     await animation.finished;
 
+    // Wait for the next animation frame for the previous "finish"
+    // event to have dispatched.
+    await waitForNextFrame();
+
     var sent_finish_event = false;
     animation.onfinish = function() {
       sent_finish_event = true;
diff --git a/tests/wpt/tests/scroll-animations/view-timelines/view-timeline-get-current-time-range-name.tentative.html b/tests/wpt/tests/scroll-animations/view-timelines/view-timeline-get-current-time-range-name.tentative.html
index 25e477e1a97..c6920143ee1 100644
--- a/tests/wpt/tests/scroll-animations/view-timelines/view-timeline-get-current-time-range-name.tentative.html
+++ b/tests/wpt/tests/scroll-animations/view-timelines/view-timeline-get-current-time-range-name.tentative.html
@@ -59,6 +59,10 @@
                                            });
     let timeline = anim.timeline;
 
+    assert_percents_approx_equal(
+      timeline.getCurrentTime('scroll'), 0, MAX_SCROLL,
+      'Scroll aligned with scroll start');
+
     container.scrollLeft = 600;
     await waitForNextFrame();
 
@@ -69,12 +73,20 @@
     assert_percents_approx_equal(timeline.getCurrentTime(), 0,
                                  MAX_SCROLL,
                                  'Scroll aligned with timeline start offset');
+    let scroll_pct = (600 / MAX_SCROLL) * 100;
+    assert_percents_approx_equal(
+      timeline.getCurrentTime('scroll'), scroll_pct, MAX_SCROLL,
+      'getCurrentTime for "scroll" range scrollLeft=600');
 
     container.scrollLeft = 650;
     await waitForNextFrame();
 
     assert_percents_approx_equal(timeline.getCurrentTime('entry'), 50,
                                  MAX_SCROLL, 'Scroll at entry midpoint');
+    scroll_pct = (650 / MAX_SCROLL) * 100;
+    assert_percents_approx_equal(
+      timeline.getCurrentTime('scroll'), scroll_pct, MAX_SCROLL,
+      'getCurrentTime for "scroll" range scrollLeft=650');
 
     container.scrollLeft = 700;
     await waitForNextFrame();
@@ -115,10 +127,20 @@
                                  MAX_SCROLL, 'Scroll at cover end');
     assert_percents_approx_equal(timeline.getCurrentTime(), 100,
                                  MAX_SCROLL, 'Scroll at end of timeline');
+    scroll_pct = (900 / MAX_SCROLL) * 100;
+    assert_percents_approx_equal(
+      timeline.getCurrentTime('scroll'), scroll_pct, MAX_SCROLL,
+      'getCurrentTime for "scroll" range scrollLeft=900');
 
     assert_equals(timeline.getCurrentTime('gibberish'), null,
                   'No current time for unknown named range');
 
+    container.scrollLeft = MAX_SCROLL;
+    await waitForNextFrame();
+    assert_percents_approx_equal(
+      timeline.getCurrentTime('scroll'), 100, MAX_SCROLL,
+      'getCurrentTime for "scroll" range at max scroll offset');
+
     // Add insets to force the start and end offsets to align. This forces
     // the timeline to become inactive.
     // start_offset = target_offset - viewport_size + end_side_inset
diff --git a/tests/wpt/tests/scroll-animations/view-timelines/view-timeline-get-set-range.html b/tests/wpt/tests/scroll-animations/view-timelines/view-timeline-get-set-range.html
index 94660abcf27..7bf4516700c 100644
--- a/tests/wpt/tests/scroll-animations/view-timelines/view-timeline-get-set-range.html
+++ b/tests/wpt/tests/scroll-animations/view-timelines/view-timeline-get-set-range.html
@@ -122,6 +122,25 @@
         'rangeEnd set to contain 100%');
     assert_equals(getComputedStyle(target).opacity, '0.75',
                   'opacity with range set to [normal, contain 100%]');
+
+    // scroll 10% @ 160px
+    // scroll 90% @ 1440px
+    // expected opacity = (750 - 160) / (1440 - 160) = 0.4609375
+    await runAndWaitForFrameUpdate(() => {
+      anim.rangeStart = "scroll 10%";
+      anim.rangeEnd = "scroll 90%";
+    });
+    assert_timeline_offset(
+        anim.rangeStart,
+        { rangeName: 'scroll', offset: CSS.percent(10) },
+        'rangeStart set to scroll 10%');
+    assert_timeline_offset(
+        anim.rangeEnd,
+        { rangeName: 'scroll', offset: CSS.percent(90) },
+        'rangeEnd set to scroll 90%');
+    assert_approx_equals(
+        parseFloat(getComputedStyle(target).opacity), 0.4609375, 1e-6,
+        'opacity with range set to [scroll 10%, scroll 90%]');
   }, 'Getting and setting the animation range');
 </script>
 </html>
diff --git a/tests/wpt/tests/service-workers/service-worker/client-url-creation-url.https.html b/tests/wpt/tests/service-workers/service-worker/client-url-creation-url.https.html
new file mode 100644
index 00000000000..ba597d893d3
--- /dev/null
+++ b/tests/wpt/tests/service-workers/service-worker/client-url-creation-url.https.html
@@ -0,0 +1,129 @@
+<!DOCTYPE html>
+<title>Service Worker: Client.url is Window creation URL tests</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/test-helpers.sub.js"></script>
+<script>
+// These tests all validate that the Service Worker's Client.url property is
+// correct for different types of Window client navigations.
+// All test cases involve an iframe navigating in some manner and then
+// the service worker validating that the Client.url property is correct.
+
+// Waits for and returns the next postMessage from `frame` to this window.
+function wait_for_message_from_frame(frame) {
+  return new Promise(resolve => {
+    const message_handler = e => {
+      if (e.source === frame.contentWindow) {
+        frame.removeEventListener('message', message_handler);
+        resolve(e.data);
+      }
+    };
+    window.addEventListener('message', message_handler);
+  });
+}
+
+// Returns a promise to get a client URL under the ServiceWorker's
+// (client-url-creation-url-sw.js) control. `target` should be an active
+// ServiceWorker to post message.  We expect it to send back the client URL
+// via the given channel.
+function post_message_and_wait_for_response(
+    target, data) {
+  return new Promise(resolve => {
+    const channel = new MessageChannel();
+    channel.port1.onmessage = e => {
+      resolve(e.data);
+    };
+    target.postMessage(
+        {message: data, port: channel.port2},
+        [channel.port2]);
+  });
+}
+
+const SCOPE = 'resources/client-url-creation-url';
+const IFRAME_URL = SCOPE + '-iframe.html?step=1';
+
+// The test helper function implements a test case by
+// using an iframe to navigate in various ways described by `navigation_kinds`
+// and then validates the ServiceWorker Client.url property of the iframe
+// against the provided `expected_client_url`.
+// `navigation_kinds` is an array of strings each of which is one of the
+// navigation actions supported by client-url-creation-url-iframe.html.
+async function test_client_url_helper(
+    t, navigation_kinds, expected_client_url) {
+  const registration = await service_worker_unregister_and_register(
+      t, 'resources/client-url-creation-url-sw.js', SCOPE);
+  t.add_cleanup(_ => registration.unregister());
+  await wait_for_state(t, registration.installing, 'activated');
+
+  const frame = await with_iframe(IFRAME_URL);
+  t.add_cleanup(_ => frame.remove());
+  const message = await wait_for_message_from_frame(frame);
+  assert_equals(message, 'done', 'iframe loaded successfully');
+
+  for (let navigation_kind_idx = 0;
+      navigation_kind_idx < navigation_kinds.length;
+      ++navigation_kind_idx) {
+    const navigation_kind = navigation_kinds[navigation_kind_idx];
+
+    frame.contentWindow.postMessage(navigation_kind);
+    const result = await wait_for_message_from_frame(frame);
+    assert_equals(result, 'done', 'iframe navigation successfully completed');
+  }
+
+  const actual_client_url = await post_message_and_wait_for_response(
+      registration.active, "get_client_url");
+
+  assert_equals(
+      actual_client_url, expected_client_url, 'Client.url should match');
+}
+
+const EXPECTED_URL_STEP_1 = new URL(
+    './resources/client-url-creation-url-iframe.html?step=1', location).href;
+const EXPECTED_URL_STEP_2 = new URL(
+    './resources/client-url-creation-url-iframe.html?step=2', location).href;
+
+// Tests that perform navigations that don't create a new document
+promise_test(async t => {
+  await test_client_url_helper(t, [], EXPECTED_URL_STEP_1);
+}, 'No navigation creation URL is same as window URL');
+
+promise_test(async t => {
+  await test_client_url_helper(t, ['fragment'], EXPECTED_URL_STEP_1);
+}, 'Fragment only navigation doesn\'t change creation URL');
+
+promise_test(async t => {
+  await test_client_url_helper(t, ['pushstate'], EXPECTED_URL_STEP_1);
+}, 'Pushstate doesn\'t change creation URL');
+
+promise_test(async t => {
+  await test_client_url_helper(t, ['replacestate'], EXPECTED_URL_STEP_1);
+}, 'Replacestate doesn\'t change creation URL');
+
+promise_test(async t => {
+  await test_client_url_helper(
+      t, ['pushstate', 'pushstate', 'back-within-same-document'], EXPECTED_URL_STEP_1);
+}, 'Going back over pushstate to other pushstate via back');
+
+// Tests that perform navigations that create new document(s)
+promise_test(async t => {
+  await test_client_url_helper(t, ['query'], EXPECTED_URL_STEP_2);
+}, 'Query navigation changes creation URL');
+
+promise_test(async t => {
+  await test_client_url_helper(t, ['reload'], EXPECTED_URL_STEP_1);
+}, 'Reloading doesn\'t change creation URL');
+
+promise_test(async t => {
+  await test_client_url_helper(t, ['pushstate', 'reload'], EXPECTED_URL_STEP_2);
+}, 'Reloading pushstate URL changes creation URL');
+
+promise_test(async t => {
+  await test_client_url_helper(
+      t, ['query', 'pushstate', 'back-within-same-document'], EXPECTED_URL_STEP_2);
+}, 'Going back over pushstate to creation URL');
+
+promise_test(async t => {
+  await test_client_url_helper(
+      t, ['query', 'query', 'back-cross-document'], EXPECTED_URL_STEP_2);
+}, 'Going back to new document changes creation URL');
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/service-workers/service-worker/resources/client-url-creation-url-iframe.html b/tests/wpt/tests/service-workers/service-worker/resources/client-url-creation-url-iframe.html
new file mode 100644
index 00000000000..db2b9e5bbd9
--- /dev/null
+++ b/tests/wpt/tests/service-workers/service-worker/resources/client-url-creation-url-iframe.html
@@ -0,0 +1,85 @@
+<!DOCTYPE html>
+<title>Service Worker: Client.url is Window creation URL iframe resource</title>
+<script>
+// This is the iframe resource for the Client.url Window creation URL test.
+// It supports the test page telling it to navigate in various ways, and then
+// the iframe will post back that its done.
+
+// Turn the next time an event is raised into a promise.
+function wait_for_next_event(event_target, event_name) {
+  return new Promise(resolve => {
+    const event_handler = event => {
+      event_target.removeEventListener(event_name, event_handler);
+      resolve(event);
+    };
+    event_target.addEventListener(event_name, event_handler);
+  });
+}
+
+// Perform the navigation step sent to the iframe by the test page.
+async function perform_navigation(navigation_kind) {
+  // This is true if the navigation results in a new document instance.
+  // For example, history.pushState() doesn't create a new document, but
+  // navigating to a URL with a different query does. We need to keep
+  // track of this so we can post a message back to the test page when the
+  // navigation completes without loading a new document.
+  let cross_document_navigation = false;
+
+  const query_params = new URLSearchParams(location.search.substring(1));
+  const step = parseInt(query_params.get('step'), 10);
+
+  const next_url = `?step=${step + 1}`;
+
+  if (navigation_kind === 'pushstate') {
+    history.pushState({}, '', next_url);
+  } else if (navigation_kind === 'replacestate') {
+    history.replaceState({}, '', next_url);
+  } else if (navigation_kind === 'back-within-same-document') {
+    history.back();
+  } else if (navigation_kind === 'fragment') {
+    location.href = '#fragment';
+    await wait_for_next_event(window, 'hashchange');
+  } else if (navigation_kind === 'back-cross-document') {
+    // Note there are two back navigation_kinds. Both call history.back(),
+    // but 'back-cross-document' is for when we go back to a different
+    // document instance and the new document will postMessage the parent
+    // that the navigation is done, and and 'back-within-same-document' is for
+    // when we go back but remain in the same document and so need to
+    // postMessage the parent that the navigation is done from this document.
+    history.back();
+    cross_document_navigation = true;
+  } else if (navigation_kind === 'query') {
+    location.href = next_url;
+    cross_document_navigation = true;
+  } else if (navigation_kind === 'reload') {
+    location.reload();
+    cross_document_navigation = true;
+  } else {
+    throw new Error('Unknown navigation kind: ' + navigation_kind);
+  }
+  return cross_document_navigation;
+}
+
+window.addEventListener('message', async message_event => {
+  try {
+    const navigation_kind = message_event.data;
+
+    // If its a cross document navigation, then we need to send the done
+    // message back to the test page when the navigation has started the
+    // new document.
+    const cross_document_navigation = await perform_navigation(navigation_kind);
+    if (!cross_document_navigation ) {
+      window.parent.postMessage('done');
+    }
+  } catch (error) {
+    window.parent.postMessage('error: ' + error.message);
+  }
+});
+
+// Navigation steps either result in a new document instance or not. The
+// iframe needs to post a message back to the test page when the navigation
+// completes regardless. If the navigation does create a new document, then
+// the following postMessage informs the test page that the cross document
+// navigation has completed.
+window.parent.postMessage('done');
+</script>
\ No newline at end of file
diff --git a/tests/wpt/tests/service-workers/service-worker/resources/client-url-creation-url-sw.js b/tests/wpt/tests/service-workers/service-worker/resources/client-url-creation-url-sw.js
new file mode 100644
index 00000000000..013d9be4cae
--- /dev/null
+++ b/tests/wpt/tests/service-workers/service-worker/resources/client-url-creation-url-sw.js
@@ -0,0 +1,24 @@
+// This is a service worker script used by the client-url-creation-url test.
+// It exists only to look up the client URL of the test iframe and send it back
+// to the test page.
+addEventListener('message', message_event => {
+  const port = message_event.data.port;
+
+  const async_work = async () => {
+    try {
+      const clients = await self.clients.matchAll();
+
+      // In our test there should be exactly one client that is our test
+      // navigation iframe.
+      if (clients.length == 1) {
+        const client = clients[0];
+        port.postMessage(client.url);
+      } else {
+        port.postMessage(`error: expected 1 client, not ${clients.length}`);
+      }
+    } catch (error) {
+      port.postMessage(`error: ${error.message}`);
+    }
+  };
+  message_event.waitUntil(async_work());
+});
\ No newline at end of file
diff --git a/tests/wpt/tests/service-workers/service-worker/tentative/static-router/static-router-resource-timing.https.html b/tests/wpt/tests/service-workers/service-worker/tentative/static-router/static-router-resource-timing.https.html
index e32436da41b..9d6137d9c52 100644
--- a/tests/wpt/tests/service-workers/service-worker/tentative/static-router/static-router-resource-timing.https.html
+++ b/tests/wpt/tests/service-workers/service-worker/tentative/static-router/static-router-resource-timing.https.html
@@ -68,7 +68,7 @@ function test_resource_timing(options) {
         assert_less_than_equal(entry.workerCacheLookupStart, entry.fetchStart, description);
       }
       break;
-    case 'race-network-and-fetch':
+    case 'race-network-and-fetch-handler':
       assert_equals(entry.workerCacheLookupStart, 0, description);
       if (entry.workerFinalSourceType === 'network') {
         assert_equals(entry.workerStart, 0, description);
@@ -261,7 +261,7 @@ promise_test(async t => {
   test_resource_timing({
     performance: iframe.contentWindow.performance,
     url: url,
-    matched_source_type: 'race-network-and-fetch',
+    matched_source_type: 'race-network-and-fetch-handler',
     final_source_type: 'fetch-event',
     description: "race as source on main resource, and fetch-event wins"
   });
@@ -280,7 +280,7 @@ promise_test(async t => {
   test_resource_timing({
     performance: iframe.contentWindow.performance,
     url: url,
-    matched_source_type: 'race-network-and-fetch',
+    matched_source_type: 'race-network-and-fetch-handler',
     final_source_type: 'network',
     description: "race as source on main resource, and network wins"
   });
@@ -301,7 +301,7 @@ promise_test(async t => {
   test_resource_timing({
     performance: iframe.contentWindow.performance,
     url: `${RACE_ROUTE}${subresource}`,
-    matched_source_type: 'race-network-and-fetch',
+    matched_source_type: 'race-network-and-fetch-handler',
     final_source_type: 'fetch-event',
     description: "race as source on subresource and fetch wins"
   });
@@ -323,7 +323,7 @@ promise_test(async t => {
   test_resource_timing({
     performance: iframe.contentWindow.performance,
     url: `${RACE_ROUTE}${subresource}`,
-    matched_source_type: 'race-network-and-fetch',
+    matched_source_type: 'race-network-and-fetch-handler',
     final_source_type: 'network',
     description: "race as source on subresource and network wins"
   });
diff --git a/tests/wpt/tests/shadow-dom/declarative/WEB_FEATURES.yml b/tests/wpt/tests/shadow-dom/declarative/WEB_FEATURES.yml
index 4e31ed49627..e5a15eb0231 100644
--- a/tests/wpt/tests/shadow-dom/declarative/WEB_FEATURES.yml
+++ b/tests/wpt/tests/shadow-dom/declarative/WEB_FEATURES.yml
@@ -1,3 +1,6 @@
 features:
 - name: declarative-shadow-dom
   files: "**"
+- name: gethtml
+  files:
+  - gethtml*
diff --git a/tests/wpt/tests/shadow-dom/event-post-dispatch.html b/tests/wpt/tests/shadow-dom/event-post-dispatch.html
index 98157a69b9c..a8fe0a24b1d 100644
--- a/tests/wpt/tests/shadow-dom/event-post-dispatch.html
+++ b/tests/wpt/tests/shadow-dom/event-post-dispatch.html
@@ -138,7 +138,7 @@ document.body.removeChild(n4.test4);
 let n5 = createTestTree(test5);
 document.body.appendChild(n5.test5);
 test(() => {
-  let log = dispatchEventWithEventLog(n5, n5.target, new MouseEvent('my-event', {bubbles: true, compoesed: true, relatedTarget: n5.relatedTarget}));
+  let log = dispatchEventWithEventLog(n5, n5.target, new MouseEvent('my-event', {bubbles: true, composed: true, relatedTarget: n5.relatedTarget}));
   assert_equals(log.event.target, null);
   assert_equals(log.event.relatedTarget, null);
   assert_equals(log.event.eventPhase, 0);
@@ -147,7 +147,7 @@ test(() => {
 }, 'Event properties post dispatch with relatedTarget in the same shadow tree. (composed: true)');
 
 test(() => {
-  let log = dispatchEventWithEventLog(n5, n5.target, new MouseEvent('my-event', {bubbles: true, compoesed: false, relatedTarget: n5.relatedTarget}));
+  let log = dispatchEventWithEventLog(n5, n5.target, new MouseEvent('my-event', {bubbles: true, composed: false, relatedTarget: n5.relatedTarget}));
   assert_equals(log.event.target, null);
   assert_equals(log.event.relatedTarget, null);
   assert_equals(log.event.eventPhase, 0);
diff --git a/tests/wpt/tests/shadow-dom/reference-target/tentative/property-reflection-imperative-setup.html b/tests/wpt/tests/shadow-dom/reference-target/tentative/property-reflection-imperative-setup.html
new file mode 100644
index 00000000000..44039295169
--- /dev/null
+++ b/tests/wpt/tests/shadow-dom/reference-target/tentative/property-reflection-imperative-setup.html
@@ -0,0 +1,27 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <script src="/html/resources/common.js"></script>
+  <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>
+  <script src="/resources/testdriver-actions.js"></script>
+  <script src="/wai-aria/scripts/aria-utils.js"></script>
+  <script src="resources/property-reflection-helper.js"></script>
+</head>
+<body>
+  <div id="host-container"></div>
+  <script>
+    function append_test_imperatively(host_container, referenced_element_type) {
+      host_container.setHTMLUnsafe('<div id="host-id"></div>');
+      const host = host_container.firstElementChild;
+      host.attachShadow({ mode: 'open', referenceTarget: 'target' });
+      host.shadowRoot.innerHTML = `<${referenced_element_type} id="target"></${referenced_element_type}>`;
+      return host;
+    }
+
+    run_test_for_all_reflecting_properties(append_test_imperatively, test_property_reflection, " with imperative setup");
+  </script>
+</body>
+</html>
diff --git a/tests/wpt/tests/shadow-dom/reference-target/tentative/property-reflection.html b/tests/wpt/tests/shadow-dom/reference-target/tentative/property-reflection.html
index 6e8b77fb785..3054d8eb391 100644
--- a/tests/wpt/tests/shadow-dom/reference-target/tentative/property-reflection.html
+++ b/tests/wpt/tests/shadow-dom/reference-target/tentative/property-reflection.html
@@ -8,122 +8,26 @@
   <script src="/resources/testdriver-vendor.js"></script>
   <script src="/resources/testdriver-actions.js"></script>
   <script src="/wai-aria/scripts/aria-utils.js"></script>
+  <script src="resources/property-reflection-helper.js"></script>
 </head>
 <body>
   <div id="host-container"></div>
   <script>
-    const Behavior = Object.freeze({
-      ReflectsHost: 'ReflectsHost',
-      ReflectsHostInArray: 'ReflectsHostInArray',
-      IsNull: 'IsNull',
-      ReflectsHostID: 'ReflectsHostID',
-      ReflectsHostIDInDOMTokenList: 'ReflectsHostIDInDOMTokenList',
-    });
-
-    function test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, attribute, reflected_property, expected_behavior) {
-      // There's nothing to test if the referencing element type doesn't have the reflecting
-      // property.
-      if (!(reflected_property in document.createElement(referencing_element_type))) {
-        return;
-      }
-
-      test(function () {
-        const referencing_element = document.createElement(referencing_element_type);
-        document.body.appendChild(referencing_element);
-        referencing_element.setAttribute(attribute, "host-id");
-        const host_container = document.querySelector("#host-container");
-        const host = element_creation_method(host_container, referenced_element_type);
-        if (expected_behavior === Behavior.ReflectsHost) {
-          assert_equals(referencing_element[reflected_property], host);
-        } else if (expected_behavior === Behavior.ReflectsHostInArray) {
-          assert_array_equals(referencing_element[reflected_property], [host]);
-        } else if (expected_behavior === Behavior.IsNull) {
-          assert_equals(referencing_element[reflected_property], null);
-        } else if (expected_behavior === Behavior.ReflectsHostID) {
-          assert_equals(referencing_element[reflected_property], "host-id");
-        } else if (expected_behavior === Behavior.ReflectsHostIDInDOMTokenList) {
-          assert_true(referencing_element[reflected_property] instanceof DOMTokenList);
-          assert_array_equals(Array.from(referencing_element[reflected_property]), ["host-id"]);
-        }
-        referencing_element.remove();
-        host_container.setHTMLUnsafe("");
-      }, `${referencing_element_type}.${reflected_property} has reflection behavior ${expected_behavior} when pointing to ${referenced_element_type} with reference target${element_creation_method.method_name}`);
+    function append_test_declaratively(host_container, referenced_element_type) {
+      host_container.setHTMLUnsafe(`
+      <div id="host-id">
+        <template shadowrootmode="open" shadowrootreferencetarget="target">
+          <${referenced_element_type} id="target"></${referenced_element_type}>
+        </template>
+      </div>`);
+      const host = host_container.firstElementChild;
+      return host;
     }
 
-    function appendTestDeclaratively(host_container, referenced_element_type) {
-        host_container.setHTMLUnsafe(`
-        <div id="host-id">
-          <template shadowrootmode="open" shadowrootreferencetarget="target">
-            <${referenced_element_type} id="target"></${referenced_element_type}>
-          </template>
-        </div>`);
-        const host = host_container.firstElementChild;
-        return host;
-    }
-    function appendTestWithOptions(host_container, referenced_element_type) {
-        host_container.setHTMLUnsafe('<div id="host-id"></div>');
-        const host = host_container.firstElementChild;
-        host.attachShadow({ mode: 'open', referenceTarget: 'target' });
-        host.shadowRoot.innerHTML = `<${referenced_element_type} id="target"></${referenced_element_type}>`;
-        return host;
-    }
-    const element_creation_methods = [
-      appendTestDeclaratively,
-      appendTestWithOptions,
-    ];
-    element_creation_methods[0].method_name = '';
-    element_creation_methods[1].method_name = ' via options';
-    // We want to test types of elements that are associated with properties that can reflect other
-    // elements and can therefore interact with reference target in interesting ways.
-    // The HTML5_LABELABLE_ELEMENTS are defined in https://html.spec.whatwg.org/#category-label,
-    // while non_labelable_element_types is a manually curated list of other elements with
-    // reflecting properties (plus div as representative of more "normal" elements).
-    // We'll test all permutations of these element types being both the referencing element
-    // pointing into the reference target shadow host, and being the referenced element inside
-    // the shadow.
-    const non_labelable_element_types = ["div", "object", "label", "fieldset", "legend", "option", "datalist", "form"];
-    const element_types = HTML5_LABELABLE_ELEMENTS.concat(non_labelable_element_types);
-
-    for(let element_creation_method of element_creation_methods) {
-      for(let referencing_element_type of element_types) {
-        for(let referenced_element_type of element_types) {
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "aria-controls", "ariaControlsElements", Behavior.ReflectsHostInArray);
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "aria-activedescendant", "ariaActiveDescendantElement", Behavior.ReflectsHost);
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "aria-describedby", "ariaDescribedByElements", Behavior.ReflectsHostInArray);
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "aria-details", "ariaDetailsElements", Behavior.ReflectsHostInArray);
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "aria-errormessage", "ariaErrorMessageElements", Behavior.ReflectsHostInArray);
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "aria-flowto", "ariaFlowToElements", Behavior.ReflectsHostInArray);
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "aria-labelledby", "ariaLabelledByElements", Behavior.ReflectsHostInArray);
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "aria-owns", "ariaOwnsElements", Behavior.ReflectsHostInArray);
-
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "anchor", "anchorElement", Behavior.ReflectsHost);
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "commandfor", "commandForElement", Behavior.ReflectsHost);
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "popovertarget", "popoverTargetElement", Behavior.ReflectsHost);
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "interesttarget", "interestTargetElement", Behavior.ReflectsHost);
-
-          const expected_htmlFor_property_behavior = (referencing_element_type == "output") ? Behavior.ReflectsHostIDInDOMTokenList : Behavior.ReflectsHostID;
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "for", "htmlFor", expected_htmlFor_property_behavior);
-
-          // The form property of <label>, <legend>, and <option> reflects the form property of the associated labelable element,
-          // the associated <fieldset>, and the associated <select>, respectively. Here since we don't have those associated elements,
-          // the form property would return null.
-          const expected_form_property_behavior = (referenced_element_type == 'form' &&
-                                                   referencing_element_type != "label" &&
-                                                   referencing_element_type != "legend" &&
-                                                   referencing_element_type != "option") ? Behavior.ReflectsHost : Behavior.IsNull;
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "form", "form", expected_form_property_behavior);
-
-          const expected_list_property_behavior = (referenced_element_type == 'datalist') ? Behavior.ReflectsHost : Behavior.IsNull;
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "list", "list", expected_list_property_behavior);
-
-          const expected_control_property_behavior = HTML5_LABELABLE_ELEMENTS.includes(referenced_element_type) ? Behavior.ReflectsHost : Behavior.IsNull;
-          test_property_reflection(element_creation_method, referencing_element_type, referenced_element_type, "for", "control", expected_control_property_behavior);
-        }
-      }
-    }
+    run_test_for_all_reflecting_properties(append_test_declaratively, test_property_reflection, "");
 
     // Test that the corresponding properties return null when the reference target has invalid ID.
-    function appendTestDeclarativelyWithInvalidID(host_container, referenced_element_type) {
+    function append_test_declaratively_with_invalid_id(host_container, referenced_element_type) {
       host_container.setHTMLUnsafe(`
       <div id="host-id">
         <template shadowrootmode="open" shadowrootreferencetarget="invalid-id">
@@ -135,9 +39,9 @@
     }
     for(let referencing_element_type of element_types) {
       for(let referenced_element_type of element_types) {
-        test_property_reflection(appendTestDeclarativelyWithInvalidID, referencing_element_type, referenced_element_type, "form", "form", Behavior.IsNull);
-        test_property_reflection(appendTestDeclarativelyWithInvalidID, referencing_element_type, referenced_element_type, "list", "list", Behavior.IsNull);
-        test_property_reflection(appendTestDeclarativelyWithInvalidID, referencing_element_type, referenced_element_type, "for", "control", Behavior.IsNull);
+        test_property_reflection(append_test_declaratively_with_invalid_id, referencing_element_type, referenced_element_type, "form", "form", Behavior.IsNull);
+        test_property_reflection(append_test_declaratively_with_invalid_id, referencing_element_type, referenced_element_type, "list", "list", Behavior.IsNull);
+        test_property_reflection(append_test_declaratively_with_invalid_id, referencing_element_type, referenced_element_type, "for", "control", Behavior.IsNull);
       }
     }
 
@@ -146,7 +50,7 @@
       document.body.appendChild(referencing_element);
       referencing_element.setAttribute('for', "host-id");
       const host_container = document.querySelector("#host-container");
-      const host = appendTestDeclaratively(host_container, 'input');
+      const host = append_test_declaratively(host_container, 'input');
       const referenced_element = host.shadowRoot.getElementById('target');
       assert_array_equals(Array.from(referenced_element['labels']), [referencing_element]);
       referencing_element.remove();
@@ -154,5 +58,4 @@
     }, `The .labels property of the referenced input element should point to the referencing label element`);
   </script>
 </body>
-
 </html>
diff --git a/tests/wpt/tests/shadow-dom/reference-target/tentative/resources/property-reflection-helper.js b/tests/wpt/tests/shadow-dom/reference-target/tentative/resources/property-reflection-helper.js
new file mode 100644
index 00000000000..79f1bd7f748
--- /dev/null
+++ b/tests/wpt/tests/shadow-dom/reference-target/tentative/resources/property-reflection-helper.js
@@ -0,0 +1,86 @@
+const Behavior = Object.freeze({
+  ReflectsHost: 'ReflectsHost',
+  ReflectsHostInArray: 'ReflectsHostInArray',
+  IsNull: 'IsNull',
+  ReflectsHostID: 'ReflectsHostID',
+  ReflectsHostIDInDOMTokenList: 'ReflectsHostIDInDOMTokenList',
+});
+
+// We want to test types of elements that are associated with properties that can reflect other
+// elements and can therefore interact with reference target in interesting ways.
+// The HTML5_LABELABLE_ELEMENTS are defined in https://html.spec.whatwg.org/#category-label,
+// while non_labelable_element_types is a manually curated list of other elements with
+// reflecting properties (plus div as representative of more "normal" elements).
+// We'll test all permutations of these element types being both the referencing element
+// pointing into the reference target shadow host, and being the referenced element inside
+// the shadow.
+const non_labelable_element_types = ["div", "object", "label", "fieldset", "legend", "option", "datalist", "form"];
+const element_types = HTML5_LABELABLE_ELEMENTS.concat(non_labelable_element_types);
+
+function test_property_reflection(element_creation_method, test_name_suffix, referencing_element_type, referenced_element_type, attribute, reflected_property, expected_behavior) {
+  // There's nothing to test if the referencing element type doesn't have the reflecting
+  // property.
+  if (!(reflected_property in document.createElement(referencing_element_type))) {
+    return;
+  }
+
+  test(function () {
+    const referencing_element = document.createElement(referencing_element_type);
+    document.body.appendChild(referencing_element);
+    referencing_element.setAttribute(attribute, "host-id");
+    const host_container = document.querySelector("#host-container");
+    const host = element_creation_method(host_container, referenced_element_type);
+    if (expected_behavior === Behavior.ReflectsHost) {
+      assert_equals(referencing_element[reflected_property], host);
+    } else if (expected_behavior === Behavior.ReflectsHostInArray) {
+      assert_array_equals(referencing_element[reflected_property], [host]);
+    } else if (expected_behavior === Behavior.IsNull) {
+      assert_equals(referencing_element[reflected_property], null);
+    } else if (expected_behavior === Behavior.ReflectsHostID) {
+      assert_equals(referencing_element[reflected_property], "host-id");
+    } else if (expected_behavior === Behavior.ReflectsHostIDInDOMTokenList) {
+      assert_true(referencing_element[reflected_property] instanceof DOMTokenList);
+      assert_array_equals(Array.from(referencing_element[reflected_property]), ["host-id"]);
+    }
+    referencing_element.remove();
+    host_container.setHTMLUnsafe("");
+  }, `${referencing_element_type}.${reflected_property} has reflection behavior ${expected_behavior} when pointing to ${referenced_element_type} with reference target${test_name_suffix}`);
+}
+
+function run_test_for_all_reflecting_properties(setup_function, test_function, test_name_suffix) {
+  for(let referencing_element_type of element_types) {
+    for(let referenced_element_type of element_types) {
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "aria-controls", "ariaControlsElements", Behavior.ReflectsHostInArray);
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "aria-activedescendant", "ariaActiveDescendantElement", Behavior.ReflectsHost);
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "aria-describedby", "ariaDescribedByElements", Behavior.ReflectsHostInArray);
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "aria-details", "ariaDetailsElements", Behavior.ReflectsHostInArray);
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "aria-errormessage", "ariaErrorMessageElements", Behavior.ReflectsHostInArray);
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "aria-flowto", "ariaFlowToElements", Behavior.ReflectsHostInArray);
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "aria-labelledby", "ariaLabelledByElements", Behavior.ReflectsHostInArray);
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "aria-owns", "ariaOwnsElements", Behavior.ReflectsHostInArray);
+
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "anchor", "anchorElement", Behavior.ReflectsHost);
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "commandfor", "commandForElement", Behavior.ReflectsHost);
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "popovertarget", "popoverTargetElement", Behavior.ReflectsHost);
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "interesttarget", "interestTargetElement", Behavior.ReflectsHost);
+
+      const expected_htmlFor_property_behavior = (referencing_element_type == "output") ? Behavior.ReflectsHostIDInDOMTokenList : Behavior.ReflectsHostID;
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "for", "htmlFor", expected_htmlFor_property_behavior);
+
+      // The form property of <label>, <legend>, and <option> reflects the form property of the associated labelable element,
+      // the associated <fieldset>, and the associated <select>, respectively. Here since we don't have those associated elements,
+      // the form property would return null.
+      const expected_form_property_behavior = (referenced_element_type == 'form' &&
+                                              referencing_element_type != "label" &&
+                                              referencing_element_type != "legend" &&
+                                              referencing_element_type != "option") ? Behavior.ReflectsHost : Behavior.IsNull;
+                                              test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "form", "form", expected_form_property_behavior);
+
+      const expected_list_property_behavior = (referenced_element_type == 'datalist') ? Behavior.ReflectsHost : Behavior.IsNull;
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "list", "list", expected_list_property_behavior);
+
+      const expected_control_property_behavior = HTML5_LABELABLE_ELEMENTS.includes(referenced_element_type) ? Behavior.ReflectsHost : Behavior.IsNull;
+      test_function(setup_function, test_name_suffix, referencing_element_type, referenced_element_type, "for", "control", expected_control_property_behavior);
+    }
+  }
+}
\ No newline at end of file
diff --git a/tests/wpt/tests/shared-storage/batch-update-inner-method-lock-not-allowed.tentative.https.sub.html b/tests/wpt/tests/shared-storage/batch-update-inner-method-lock-not-allowed.tentative.https.sub.html
new file mode 100644
index 00000000000..2b445c805d0
--- /dev/null
+++ b/tests/wpt/tests/shared-storage/batch-update-inner-method-lock-not-allowed.tentative.https.sub.html
@@ -0,0 +1,17 @@
+<!doctype html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<body>
+<script>
+'use strict';
+
+promise_test(async t => {
+  return promise_rejects_dom(t, "DataError",
+    sharedStorage.batchUpdate([
+      new SharedStorageSetMethod("key0", "value0", {withLock: "lock1"})
+    ]));
+}, 'batchUpdate() with a set method that specifies the \'withLock\' option');
+
+</script>
+</body>
diff --git a/tests/wpt/tests/shared-storage/setters.tentative.https.sub.html b/tests/wpt/tests/shared-storage/setters.tentative.https.sub.html
index c5380f8dd85..c3cd19c0bdb 100644
--- a/tests/wpt/tests/shared-storage/setters.tentative.https.sub.html
+++ b/tests/wpt/tests/shared-storage/setters.tentative.https.sub.html
@@ -106,10 +106,10 @@ test(() => {
 
 promise_test(() => {
   return sharedStorage.batchUpdate([
-    new SharedStorageSetMethod("key0", "value0", {withLock: "lock1"}),
+    new SharedStorageSetMethod("key0", "value0"),
     new SharedStorageAppendMethod("key1", "value1"),
     new SharedStorageDeleteMethod("key2"),
-    new SharedStorageClearMethod({withLock: "lock2"})
+    new SharedStorageClearMethod()
   ], {withLock: "lock3"});
 }, 'sharedStorage.batchUpdate');
 
diff --git a/tests/wpt/tests/shared-storage/web-locks-header-modifier-method.tentative.https.sub.html b/tests/wpt/tests/shared-storage/web-locks-header-modifier-method.tentative.https.sub.html
deleted file mode 100644
index 05ec7bf82bd..00000000000
--- a/tests/wpt/tests/shared-storage/web-locks-header-modifier-method.tentative.https.sub.html
+++ /dev/null
@@ -1,75 +0,0 @@
-<!doctype html>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/common/utils.js"></script>
-<script src="/shared-storage/resources/util.js"></script>
-<script src="/fenced-frame/resources/utils.js"></script>
-
-<body>
-<script>
-'use strict';
-
-promise_test(async t => {
-  let worklet = await sharedStorage.createWorklet('resources/simple-module.js');
-
-  const ancestor_key = token();
-  let url0 = generateURL("/shared-storage/resources/frame0.html",
-                         [ancestor_key]);
-  let url1 = generateURL("/shared-storage/resources/frame1.html",
-                         [ancestor_key]);
-
-  // Invoke `selectURL()` to perform the following steps:
-  // 1. Acquires the lock.
-  // 2. Reads the current value at the given key.
-  // 3. Waits for 500ms.
-  // 4. Sets the shared storage value to the read value appended with the given letter.
-  // 5. Releases the lock.
-  //
-  // After 100ms, send a fetch() request. The response triggers the `append`
-  // method with the same lock and the same letter.
-  //
-  // Expected behavior: After both of them finish, the value at the given key
-  // should contain the letter repeated twice.
-  //
-  // This demonstrates that the `withLock` option is effective, preventing the
-  // `append` method interfering with the "get and set" operation. If the lock
-  // were not used, the final value would likely be a single letter.
-  //
-  // Note: This test remains valid even if the header `append` happens outside
-  // the critical section protected by the lock within the worklet. The test
-  // effectively demonstrates mutual exclusion as long as there's a reasonable
-  // chance for `append` to occur while the worklet is still running.
-  let select_url_result = await worklet.selectURL(
-      "get-wait-set-within-lock",
-      [{url: url0}, {url: url1}],
-      {data: {'key': 'key',
-              'lock_name': 'lock1',
-              'append_letter': 'a'},
-      resolveToConfig: true});
-
-  // Busy wait for 100ms.
-  const startWaitTime = Date.now();
-  while (Date.now() - startWaitTime < 100) {}
-
-  // Send a fetch() request. The response triggers the `append` method with the
-  // same lock and the same letter.
-  const rawUpdatesHeader = 'append;key=key;value=a;with_lock=lock1';
-  const updatesHeader = encodeURIComponent(rawUpdatesHeader);
-  const updatesUrl =
-    `/shared-storage/resources/shared-storage-write.py?write=${updatesHeader}`;
-
-  let response = await fetch(updatesUrl, {sharedStorageWritable: true});
-  let sharedStorageWritableHeader = await response.text();
-  assert_equals(sharedStorageWritableHeader, "?1");
-
-  attachFencedFrame(select_url_result, 'opaque-ads');
-  const result = await nextValueFromServer(ancestor_key);
-  assert_equals(result, "frame1_loaded");
-
-  await verifyKeyValueForOrigin('key', 'aa', location.origin);
-
-  await deleteKeyForOrigin('key', location.origin);
-}, 'Test for withLock option in the Shared-Storage-Write response header');
-
-</script>
-</body>
diff --git a/tests/wpt/tests/speculation-rules/prefetch/resources/executor.sub.html b/tests/wpt/tests/speculation-rules/prefetch/resources/executor.sub.html
index 24fef916bb3..6563b4fcff7 100644
--- a/tests/wpt/tests/speculation-rules/prefetch/resources/executor.sub.html
+++ b/tests/wpt/tests/speculation-rules/prefetch/resources/executor.sub.html
@@ -2,12 +2,23 @@
 <script src="/common/dispatcher/dispatcher.js" nonce="abc"></script>
 <script src="utils.sub.js" nonce="abc"></script>
 <script nonce="abc">
+
+// Workaround for https://crbug.com/404573971.
+function reverse_html_escape(str) {
+  str = str.replaceAll('&quot;', '"');
+  return str;
+}
+
 window.requestHeaders = {
   purpose: "{{header_or_default(Purpose, )}}",
   sec_purpose: "{{header_or_default(Sec-Purpose, )}}",
   referer: "{{header_or_default(Referer, )}}",
   sec_fetch_dest: "{{header_or_default(Sec-Fetch-Dest, )}}",
   sec_fetch_mode: "{{header_or_default(Sec-Fetch-Mode, )}}",
+  // Convert to the raw string to avoid backslashes from being processed as
+  // escape sequences.
+  sec_speculation_tags: reverse_html_escape(
+      String.raw`{{header_or_default(Sec-Speculation-Tags, )}}`),
 };
 
 const uuid = new URLSearchParams(location.search).get('uuid');
diff --git a/tests/wpt/tests/speculation-rules/prefetch/resources/speculation-tags-utils.js b/tests/wpt/tests/speculation-rules/prefetch/resources/speculation-tags-utils.js
new file mode 100644
index 00000000000..9b10fab9898
--- /dev/null
+++ b/tests/wpt/tests/speculation-rules/prefetch/resources/speculation-tags-utils.js
@@ -0,0 +1,83 @@
+// Utilities for speculation tags tests.
+
+{
+  // Retrieves a tag level variant from URLSearchParams of the current window and
+  // returns it. Throw an Error if it doesn't have the valid tag level param.
+  function getTagLevel() {
+    const params = new URLSearchParams(window.location.search);
+    const level = params.get('tag-level');
+    if (level === null)
+      throw new Error('window.location does not have a tag-level param');
+    if (level !== 'ruleset' && level !== 'rule')
+      throw new Error('window.location does not have a valid tag-level param');
+    return level;
+  }
+
+  function testRulesetTag(tag, expectedTag, description) {
+    promise_test(async t => {
+        const agent = await spawnWindow(t);
+        const nextUrl = agent.getExecutorURL({ page: 2 });
+        await agent.forceSpeculationRules({
+            tag,
+            prefetch: [{source: "list", urls: [nextUrl]}]
+        });
+        await agent.navigate(nextUrl);
+
+        const headers = await agent.getRequestHeaders();
+        assert_prefetched(headers, "must be prefetched");
+        assert_equals(headers.sec_speculation_tags, expectedTag, "Sec-Speculation-Tags");
+    }, "Sec-Speculation-Tags [ruleset-based]: " + description);
+  }
+
+  function testInvalidRulesetTag(tag, description) {
+    testRulesetTag(tag, 'null', description);
+  }
+
+  function testRuleTag(tag, expectedTag, description) {
+    promise_test(async t => {
+        const agent = await spawnWindow(t);
+        const nextUrl = agent.getExecutorURL({ page: 2 });
+        await agent.forceSpeculationRules({
+            prefetch: [{tag, source: "list", urls: [nextUrl]}]
+        });
+        await agent.navigate(nextUrl);
+
+        const headers = await agent.getRequestHeaders();
+        assert_prefetched(headers, "must be prefetched");
+        assert_equals(headers.sec_speculation_tags, expectedTag, "Sec-Speculation-Tags");
+    }, "Sec-Speculation-Tags [rule-based]: " + description);
+  }
+
+  function testInvalidRuleTag(tag, description) {
+    promise_test(async t => {
+        const agent = await spawnWindow(t);
+        const nextUrl = agent.getExecutorURL({ page: 2 });
+        await agent.forceSpeculationRules({
+            prefetch: [{tag, source: "list", urls: [nextUrl]}]
+        });
+        await agent.navigate(nextUrl);
+
+        const headers = await agent.getRequestHeaders();
+        assert_not_prefetched(headers, "must not be prefetched");
+        assert_equals(headers.sec_speculation_tags, "", "Sec-Speculation-Tags");
+    }, "Sec-Speculation-Tags [rule-based]: " + description);
+  }
+
+  // Runs the test function for valid tag cases based on the tag level.
+  globalThis.testTag = (tag, expectedTag, description) => {
+    if (getTagLevel() === 'ruleset') {
+      testRulesetTag(tag, expectedTag, description);
+    } else {
+      testRuleTag(tag, expectedTag, description);
+    }
+  };
+
+  // Runs the test function for invalid tag cases based on the tag level.
+  globalThis.testInvalidTag = (tag, description) => {
+    if (getTagLevel() === 'ruleset') {
+      testInvalidRulesetTag(tag, description);
+    } else {
+      testInvalidRuleTag(tag, description);
+    }
+  };
+}
diff --git a/tests/wpt/tests/speculation-rules/prefetch/resources/utils.sub.js b/tests/wpt/tests/speculation-rules/prefetch/resources/utils.sub.js
index 0ab3f1ac341..61411073aec 100644
--- a/tests/wpt/tests/speculation-rules/prefetch/resources/utils.sub.js
+++ b/tests/wpt/tests/speculation-rules/prefetch/resources/utils.sub.js
@@ -42,9 +42,16 @@ class PrefetchAgent extends RemoteContext {
   // occur despite heuristic matching, etc., and await the completion of the
   // prefetch.
   async forceSinglePrefetch(url, extra = {}, wait_for_completion = true) {
-    await this.execute_script((url, extra) => {
-      insertSpeculationRules({ prefetch: [{source: 'list', urls: [url], ...extra}] });
-    }, [url, extra]);
+    return this.forceSpeculationRules(
+      {
+        prefetch: [{source: 'list', urls: [url], ...extra}]
+      }, wait_for_completion);
+  }
+
+  async forceSpeculationRules(rules, wait_for_completion = true) {
+    await this.execute_script((rules) => {
+      insertSpeculationRules(rules);
+    }, [rules]);
     if (!wait_for_completion) {
       return Promise.resolve();
     }
diff --git a/tests/wpt/tests/speculation-rules/prefetch/speculation-tags-invalid.https.html b/tests/wpt/tests/speculation-rules/prefetch/speculation-tags-invalid.https.html
new file mode 100644
index 00000000000..e35bab0d6da
--- /dev/null
+++ b/tests/wpt/tests/speculation-rules/prefetch/speculation-tags-invalid.https.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>Prefetch request's Sec-Speculation-Tags request headers</title>
+<meta name="variant" content="?tag-level=ruleset">
+<meta name="variant" content="?tag-level=rule">
+<meta name="timeout" content="long">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/dispatcher/dispatcher.js"></script>
+<script src="/common/utils.js"></script>
+<script src="../resources/utils.js"></script>
+<script src="resources/utils.sub.js"></script>
+<script src="resources/speculation-tags-utils.js"></script>
+<script>
+"use strict";
+
+setup(() => assertSpeculationRulesIsSupported());
+
+// https://wicg.github.io/nav-speculation/speculation-rules.html#collect-tags-for-matching-speculative-load-candidates
+// https://wicg.github.io/nav-speculation/prefetch.html#sec-speculation-tags-header
+
+// Invalid (null) tag cases.
+testInvalidTag(123, "integer tag");
+testInvalidTag({a: "1"}, "object tag");
+testInvalidTag(null, "null value tag");
+testInvalidTag('\n', "non-printable character tag");
+testInvalidTag('my\nrules', "string with non-printable character tag");
+testInvalidTag('マイルール', "non-ascii string tag");
+
+// Boundary checks: the tag allows only printable ascii characters between 0x20
+// and 0x7E, inclusive.
+testInvalidTag('\x19', "0x19 tag");
+testTag('\x20', '" "', "0x20 tag");
+testTag('\x7E', '"~"', "0x7E tag");
+testInvalidTag('\x7F', "0x7F tag");
+</script>
diff --git a/tests/wpt/tests/speculation-rules/prefetch/speculation-tags-no-tags.https.html b/tests/wpt/tests/speculation-rules/prefetch/speculation-tags-no-tags.https.html
new file mode 100644
index 00000000000..d96bca8b341
--- /dev/null
+++ b/tests/wpt/tests/speculation-rules/prefetch/speculation-tags-no-tags.https.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<title>Prefetch request's Sec-Speculation-Tags request headers</title>
+<meta name="timeout" content="long">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/dispatcher/dispatcher.js"></script>
+<script src="/common/utils.js"></script>
+<script src="../resources/utils.js"></script>
+<script src="resources/utils.sub.js"></script>
+<script src="resources/speculation-tags-utils.js"></script>
+<script>
+"use strict";
+
+setup(() => assertSpeculationRulesIsSupported());
+
+// https://wicg.github.io/nav-speculation/speculation-rules.html#collect-tags-for-matching-speculative-load-candidates
+// https://wicg.github.io/nav-speculation/prefetch.html#sec-speculation-tags-header
+
+// No tags case.
+promise_test(async t => {
+  const agent = await spawnWindow(t);
+  const nextUrl = agent.getExecutorURL({ page: 2 });
+  await agent.forceSpeculationRules({
+      prefetch: [{source: "list", urls: [nextUrl]}]
+  });
+  await agent.navigate(nextUrl);
+
+  const headers = await agent.getRequestHeaders();
+  assert_prefetched(headers, "must be prefetched");
+  assert_equals(headers.sec_speculation_tags, "null", "Sec-Speculation-Tags");
+}, "Sec-Speculation-Tags: no tags");
+</script>
diff --git a/tests/wpt/tests/speculation-rules/prefetch/speculation-tags-valid.https.html b/tests/wpt/tests/speculation-rules/prefetch/speculation-tags-valid.https.html
new file mode 100644
index 00000000000..e5eb7050653
--- /dev/null
+++ b/tests/wpt/tests/speculation-rules/prefetch/speculation-tags-valid.https.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<title>Prefetch request's Sec-Speculation-Tags request headers</title>
+<meta name="variant" content="?tag-level=ruleset">
+<meta name="variant" content="?tag-level=rule">
+<meta name="timeout" content="long">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/dispatcher/dispatcher.js"></script>
+<script src="/common/utils.js"></script>
+<script src="../resources/utils.js"></script>
+<script src="resources/utils.sub.js"></script>
+<script src="resources/speculation-tags-utils.js"></script>
+<script>
+"use strict";
+
+setup(() => assertSpeculationRulesIsSupported());
+
+// https://wicg.github.io/nav-speculation/speculation-rules.html#collect-tags-for-matching-speculative-load-candidates
+// https://wicg.github.io/nav-speculation/prefetch.html#sec-speculation-tags-header
+
+const R = String.raw;
+
+// Valid tag cases.
+testTag('my-rules', '"my-rules"', "string tag");
+testTag('null', '"null"', "'null' string tag");
+testTag('', '""', "empty string tag");
+testTag(' ', '" "', "single space tag");
+testTag('"', R`"\""`, "double quote tag");
+testTag('"""', R`"\"\"\""`, "double quotes tag");
+testTag('\\', R`"\\"`, "backslash tag");
+testTag('\\\\\\', R`"\\\\\\"`, "backslashes tag");
+</script>
diff --git a/tests/wpt/tests/speech-api/SpeechRecognition-basics.https.html b/tests/wpt/tests/speech-api/SpeechRecognition-basics.https.html
index 16c22e7c95f..827844096f6 100644
--- a/tests/wpt/tests/speech-api/SpeechRecognition-basics.https.html
+++ b/tests/wpt/tests/speech-api/SpeechRecognition-basics.https.html
@@ -12,6 +12,6 @@ test(function() {
   assert_false(reco.interimResults, 'SpeechRecognition.interimResults');
   assert_equals(reco.maxAlternatives, 1, 'SpeechRecognition.maxAlternatives');
   assert_equals(reco.mode, 'ondevice-preferred', 'SpeechRecognition.mode');
-  assert_equals(reco.context, null, 'SpeechRecognition.context');
+  assert_equals(reco.phrases, null, 'SpeechRecognition.phrases');
 });
 </script>
diff --git a/tests/wpt/tests/speech-api/SpeechRecognition-installOnDevice.https.html b/tests/wpt/tests/speech-api/SpeechRecognition-installOnDevice.https.html
index 08d370d5dc2..1d1dd35edc2 100644
--- a/tests/wpt/tests/speech-api/SpeechRecognition-installOnDevice.https.html
+++ b/tests/wpt/tests/speech-api/SpeechRecognition-installOnDevice.https.html
@@ -29,6 +29,32 @@ promise_test(async (t) => {
     "installOnDevice should resolve with `true` when called with a supported language code."
   );
 
+  // Verify that the newly installed language pack is available.
+  const availableOnDeviceResultPromise = SpeechRecognition.availableOnDevice(validLang);
+  assert_true(
+    availableOnDeviceResultPromise instanceof Promise,
+    "availableOnDevice should return a Promise."
+  );
+
+  const availableOnDeviceResult = await availableOnDeviceResultPromise;
+  assert_true(
+    typeof availableOnDeviceResult === "string",
+    "The resolved value of the availableOnDevice promise should be a string."
+  );
+
+  assert_true(availableOnDeviceResult === "available",
+    "The resolved value of the availableOnDevice promise should be available."
+  );
+
+  // Verify that installing an already installed language pack resolves to true.
+  const secondResultPromise = SpeechRecognition.installOnDevice(validLang);
+  const secondResult = await secondResultPromise;
+  assert_equals(
+    secondResult,
+    true,
+    "installOnDevice should resolve with `true` if the language is already installed."
+  );
+
   // Test that it returns a promise.
   const invalidResultPromise = SpeechRecognition.installOnDevice(invalidLang);
   const invalidResult = await invalidResultPromise;
diff --git a/tests/wpt/tests/streams/writable-streams/close.any.js b/tests/wpt/tests/streams/writable-streams/close.any.js
index 45261e7ca7e..3b2c07cc3bf 100644
--- a/tests/wpt/tests/streams/writable-streams/close.any.js
+++ b/tests/wpt/tests/streams/writable-streams/close.any.js
@@ -468,3 +468,14 @@ promise_test(t => {
 
   return promise_rejects_js(t, TypeError, ws.close(), 'close should reject');
 }, 'close() on a stream with a pending close should reject');
+
+// See https://github.com/whatwg/streams/issues/1341.
+promise_test(async t => {
+  const ws = new WritableStream();
+  const writer = ws.getWriter();
+
+  await writer.write(1);
+  await writer.close();
+
+  return promise_rejects_js(t, TypeError, writer.write(2), 'write should reject');
+}, 'write() on a closed stream should reject');
diff --git a/tests/wpt/tests/tools/ci/azure/fyi_hook.yml b/tests/wpt/tests/tools/ci/azure/fyi_hook.yml
index df92ce10664..8e541e14d86 100644
--- a/tests/wpt/tests/tools/ci/azure/fyi_hook.yml
+++ b/tests/wpt/tests/tools/ci/azure/fyi_hook.yml
@@ -10,7 +10,7 @@ jobs:
   displayName: 'wpt.fyi hook: ${{ parameters.artifactName }}'
   dependsOn: ${{ parameters.dependsOn }}
   pool:
-    vmImage: 'ubuntu-20.04'
+    vmImage: 'ubuntu-24.04'
   steps:
   - checkout: none
   - script: |
diff --git a/tests/wpt/tests/tools/ci/tc/tasks/test.yml b/tests/wpt/tests/tools/ci/tc/tasks/test.yml
index 54cf522ebd8..c96082cfa03 100644
--- a/tests/wpt/tests/tools/ci/tc/tasks/test.yml
+++ b/tests/wpt/tests/tools/ci/tc/tasks/test.yml
@@ -4,7 +4,7 @@ components:
     workerType: ci
     schedulerId: taskcluster-github
     deadline: "24 hours"
-    image: ghcr.io/web-platform-tests/wpt:1
+    image: ghcr.io/web-platform-tests/wpt:2
     maxRunTime: 7200
     artifacts:
       public/results:
diff --git a/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/web_extension.py b/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/web_extension.py
index 70572a126f2..d313e416d75 100644
--- a/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/web_extension.py
+++ b/tests/wpt/tests/tools/webdriver/webdriver/bidi/modules/web_extension.py
@@ -4,8 +4,16 @@ from ._module import BidiModule, command
 
 class WebExtension(BidiModule):
     @command
-    def install(self, extension_data: Mapping[str, Any]) -> Mapping[str, Any]:
+    def install(
+        self,
+        extension_data: Mapping[str, Any],
+        **kwargs: Mapping[str, Any]
+    ) -> Mapping[str, Any]:
         params: MutableMapping[str, Any] = {"extensionData": extension_data}
+
+        # Allow vendor specific parameters
+        params.update(**kwargs)
+
         return params
 
     @install.result
diff --git a/tests/wpt/tests/tools/wpt/tests/test_wpt.py b/tests/wpt/tests/tools/wpt/tests/test_wpt.py
index c977b9a873f..cea4122dc9e 100644
--- a/tests/wpt/tests/tools/wpt/tests/test_wpt.py
+++ b/tests/wpt/tests/tools/wpt/tests/test_wpt.py
@@ -1,6 +1,7 @@
 # mypy: allow-untyped-defs
 
 import errno
+import logging
 import os
 import shutil
 import socket
@@ -8,14 +9,14 @@ import subprocess
 import sys
 import tempfile
 import time
-
 from urllib.request import urlopen
 from urllib.error import URLError
 
 import pytest
 
+from tools.wpt import browser, utils, wpt
+
 here = os.path.abspath(os.path.dirname(__file__))
-from tools.wpt import utils, wpt
 
 
 def is_port_8000_in_use():
@@ -57,6 +58,19 @@ def manifest_dir():
         utils.rmtree(path)
 
 
+@pytest.fixture(scope="module")
+def download_firefox():
+    try:
+        logger = logging.getLogger("download_firefox")
+        path = tempfile.mkdtemp()
+        firefox = browser.Firefox(logger)
+        bin_path = firefox.install(dest=path)
+        assert os.path.exists(bin_path) and os.path.isfile(bin_path)
+        yield bin_path
+    finally:
+        utils.rmtree(path)
+
+
 @pytest.fixture
 def temp_test():
     os.makedirs("../../.tools-tests")
@@ -120,7 +134,8 @@ def test_list_tests(manifest_dir):
 
 
 @pytest.mark.slow
-def test_list_tests_missing_manifest(manifest_dir):
+@pytest.mark.remote_network
+def test_list_tests_missing_manifest(manifest_dir, download_firefox):
     """The `--list-tests` option should not produce an error in the absence of
     a test manifest file."""
 
@@ -135,17 +150,20 @@ def test_list_tests_missing_manifest(manifest_dir):
                        # drastically reduces the time to execute the test.
                        "--tests", here,
                        "--metadata", manifest_dir,
+                       "--log-mach", "-",
                        "--list-tests",
                        "--yes",
                        # WebTransport server is not needed (web-platform-tests/wpt#41675).
                        "--no-enable-webtransport-h3",
+                       "--binary", download_firefox,
                        "firefox", "/dom/nodes/Element-tagName.html"])
 
     assert excinfo.value.code == 0
 
 
 @pytest.mark.slow
-def test_list_tests_invalid_manifest(manifest_dir):
+@pytest.mark.remote_network
+def test_list_tests_invalid_manifest(manifest_dir, download_firefox):
     """The `--list-tests` option should not produce an error in the presence of
     a malformed test manifest file."""
 
@@ -165,10 +183,12 @@ def test_list_tests_invalid_manifest(manifest_dir):
                        # drastically reduces the time to execute the test.
                        "--tests", here,
                        "--metadata", manifest_dir,
+                       "--log-mach", "-",
                        "--list-tests",
                        "--yes",
                        # WebTransport server is not needed (web-platform-tests/wpt#41675).
                        "--no-enable-webtransport-h3",
+                       "--binary", download_firefox,
                        "firefox", "/dom/nodes/Element-tagName.html"])
 
     assert excinfo.value.code == 0
diff --git a/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/servo.py b/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/servo.py
index 00d7eac0dfd..d0bf0a38ea3 100644
--- a/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/servo.py
+++ b/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/servo.py
@@ -113,9 +113,6 @@ class ServoWdspecBrowser(WebDriverBrowser):
         command = [self.binary,
                    f"--webdriver={self.port}",
                    "--hard-fail",
-                   # See https://github.com/servo/servo/issues/30080.
-                   # For some reason rustls does not like the certificate generated by the WPT tooling.
-                   "--ignore-certificate-errors",
                    "--headless"] + self.webdriver_args
         if self.binary_args:
             command += self.binary_args
diff --git a/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/servodriver.py b/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/servodriver.py
index 7121e1dafcc..bd16d7987e5 100644
--- a/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/servodriver.py
+++ b/tests/wpt/tests/tools/wptrunner/wptrunner/browsers/servodriver.py
@@ -101,7 +101,7 @@ class ServoWebDriverBrowser(WebDriverBrowser):
             # For some reason rustls does not like the certificate generated by the WPT tooling.
             "--ignore-certificate-errors",
             "--window-size", "800x600",
-            "about:blank",
+            "data:,",
         ]
 
         ca_cert_path = server_config.ssl_config["ca_cert_path"]
diff --git a/tests/wpt/tests/trusted-types/should-sink-type-mismatch-violation-be-blocked-by-csp-001.html b/tests/wpt/tests/trusted-types/should-sink-type-mismatch-violation-be-blocked-by-csp-001.html
index add14466e57..13fd3549953 100644
--- a/tests/wpt/tests/trusted-types/should-sink-type-mismatch-violation-be-blocked-by-csp-001.html
+++ b/tests/wpt/tests/trusted-types/should-sink-type-mismatch-violation-be-blocked-by-csp-001.html
@@ -113,7 +113,7 @@ header(Content-Security-Policy-Report-Only,require-trusted-types-for 'script',Tr
   promise_test(async t => {
     let results = await trySendingPlainStringToTrustedTypeSink(
       ["script"],
-      "header(Content-Security-Policy,require-trusted-types-for 'script''script' 'script',True)",
+      "header(Content-Security-Policy,require-trusted-types-for 'script''script',True)",
     );
     assert_equals(results.length, 1);
     assert_equals(results[0].exception, null);
@@ -150,4 +150,15 @@ header(Content-Security-Policy-Report-Only,require-trusted-types-for 'script',Tr
     assert_true(results[0].exception instanceof TypeError);
     assert_equals(results[0].violatedPolicies.length, 1);
   }, `directive "require-trusted-types-for 'invalid' 'script' 'also-invalid" (unknown sink group)`);
+
+  promise_test(async t => {
+    let results = await trySendingPlainStringToTrustedTypeSink(
+      ["script"],
+      "header(Content-Security-Policy,require-trusted-types-for unquoted-invalid 'script' also-unquoted-invalid,True)",
+    );
+    assert_equals(results.length, 1);
+    assert_true(results[0].exception instanceof TypeError);
+    assert_equals(results[0].violatedPolicies.length, 1);
+  }, `directive "require-trusted-types-for unquoted-invalid 'script' also-unquoted-invalid (unknown sink group)`);
+
 </script>
diff --git a/tests/wpt/tests/trusted-types/should-trusted-type-policy-creation-be-blocked-by-csp-002.html b/tests/wpt/tests/trusted-types/should-trusted-type-policy-creation-be-blocked-by-csp-002.html
index fc1906a7c99..4bfbb6514a0 100644
--- a/tests/wpt/tests/trusted-types/should-trusted-type-policy-creation-be-blocked-by-csp-002.html
+++ b/tests/wpt/tests/trusted-types/should-trusted-type-policy-creation-be-blocked-by-csp-002.html
@@ -63,6 +63,8 @@
       // https://w3c.github.io/trusted-types/dist/spec/#should-block-create-policy
       assert_true(results[0].exception instanceof TypeError, "createPolicy() should throw a TypeError.");
       assert_equals(results[0].violatedPolicies.length, 1, "createPolicy() should trigger a violation report.");
+      assert_equals(results[0].violatedPolicies[0].disposition, "enforce");
+      assert_equals(results[0].violatedPolicies[0].policy, `trusted-types ${trustedTypePolicyName}`);
     }, `invalid tt-policy-name name "${trustedTypePolicyName}"`);
   });
 
@@ -90,5 +92,7 @@
     assert_equals(results.length, 1);
     assert_true(results[0].exception instanceof TypeError);
     assert_equals(results[0].violatedPolicies.length, 1);
+    assert_equals(results[0].violatedPolicies[0].disposition, "enforce");
+    assert_equals(results[0].violatedPolicies[0].policy, `trusted-types _TTP_*`);
   }, `invalid directive "trusted-type _TTP" (no ascii whitespace)`);
 </script>
diff --git a/tests/wpt/tests/trusted-types/support/navigation-report-only-support.html b/tests/wpt/tests/trusted-types/support/navigation-report-only-support.html
index 791559f7a19..d4e4ded7daa 100644
--- a/tests/wpt/tests/trusted-types/support/navigation-report-only-support.html
+++ b/tests/wpt/tests/trusted-types/support/navigation-report-only-support.html
@@ -1,5 +1,6 @@
 <!DOCTYPE html>
 <head>
+  <script src="csp-violations.js"></script>
   <script src="navigation-support.js"></script>
 </head>
 <body>
diff --git a/tests/wpt/tests/trusted-types/support/navigation-report-only-support.html.headers b/tests/wpt/tests/trusted-types/support/navigation-report-only-support.html.headers
index 4c1ff15e167..e9e9a92f766 100644
--- a/tests/wpt/tests/trusted-types/support/navigation-report-only-support.html.headers
+++ b/tests/wpt/tests/trusted-types/support/navigation-report-only-support.html.headers
@@ -1 +1,2 @@
+Content-Security-Policy: connect-src 'none'
 Content-Security-Policy-Report-Only: require-trusted-types-for 'script';
diff --git a/tests/wpt/tests/trusted-types/support/navigation-support.html b/tests/wpt/tests/trusted-types/support/navigation-support.html
index 47f33c9fb64..306cc0e84f7 100644
--- a/tests/wpt/tests/trusted-types/support/navigation-support.html
+++ b/tests/wpt/tests/trusted-types/support/navigation-support.html
@@ -1,5 +1,6 @@
 <!DOCTYPE html>
 <head>
+  <script src="csp-violations.js"></script>
   <script src="navigation-support.js"></script>
 </head>
 <body>
diff --git a/tests/wpt/tests/trusted-types/support/navigation-support.html.headers b/tests/wpt/tests/trusted-types/support/navigation-support.html.headers
index 604e765da46..cd8c4c6d24a 100644
--- a/tests/wpt/tests/trusted-types/support/navigation-support.html.headers
+++ b/tests/wpt/tests/trusted-types/support/navigation-support.html.headers
@@ -1 +1,2 @@
+Content-Security-Policy: connect-src 'none'
 Content-Security-Policy: require-trusted-types-for 'script';
diff --git a/tests/wpt/tests/trusted-types/support/navigation-support.js b/tests/wpt/tests/trusted-types/support/navigation-support.js
index 41dce761def..8449dd202b6 100644
--- a/tests/wpt/tests/trusted-types/support/navigation-support.js
+++ b/tests/wpt/tests/trusted-types/support/navigation-support.js
@@ -1,7 +1,5 @@
-const kNavigationAttempted = "navigationattempted=1";
-
 function navigateToJavascriptURL(reportOnly) {
-    let params = new URLSearchParams(location.search);
+    const params = new URLSearchParams(location.search);
 
     if (!!params.get("defaultpolicy")) {
         trustedTypes.createPolicy("default", {
@@ -26,20 +24,24 @@ function navigateToJavascriptURL(reportOnly) {
     // loaded frame to through DOMContentLoaded. In either case there should be
     // _some_ event that we can expect.
     document.addEventListener("DOMContentLoaded", bounceEventToOpener);
-    document.addEventListener("securitypolicyviolation", bounceEventToOpener);
-
-    let target_script;
-    if (reportOnly) {
-        // Navigate to the non-report-only version of the test. That has the same
-        // event listening setup as this, but is a different target URI.
-        target_script = `location.href='${location.href.replace("-report-only", "") +
-            (location.href.endsWith(".html") ? "?" : "&") + kNavigationAttempted + "&continue"}';`;
-    } else {
-        // We'll use a javascript:-url to navigate to ourselves, so that we can
-        // re-use the messageing mechanisms above.
-        target_script = `location.href='${location.href + "&" + kNavigationAttempted}&continue';`;
+    // Prevent loops.
+    if (params.has("navigationattempted")) {
+      return;
     }
 
+    let url = new URL(
+      reportOnly ?
+      // Navigate to the non-report-only version of the test. That has the same
+      // event listening setup as this, but is a different target URI.
+      location.href.replace("-report-only", "") :
+      // We'll use a javascript:-url to navigate to ourselves, so that we can
+      // re-use the messageing mechanisms above.
+      location.href
+    );
+    url.searchParams.set("navigationattempted", 1);
+    url.searchParams.set("continue", 1);
+    let target_script = `location.href='${url.toString()}';`;
+
     function getAndPreparareNavigationElement(javaScriptURL) {
         let target = "_self";
         if (!!params.get("frame")) {
@@ -67,9 +69,12 @@ function navigateToJavascriptURL(reportOnly) {
     }
 
     const navigationElement = getAndPreparareNavigationElement(`javascript:${target_script}`);
-
-    // Prevent loops.
-    if (!location.search.includes(kNavigationAttempted)) {
-       document.addEventListener("DOMContentLoaded", _ => navigationElement.click());
-    }
+    document.addEventListener("DOMContentLoaded", async _ => {
+      let {violations, exception} =
+        await trusted_type_violations_and_exception_for(_ => navigationElement.click());
+      violations.forEach(violationEvent => bounceEventToOpener(violationEvent));
+      if (!params.get("defaultpolicy") && violations.length == 0) {
+        window.opener.postMessage("No securitypolicyviolation reported!", "*");
+      }
+    });
 }
diff --git a/tests/wpt/tests/trusted-types/trusted-types-navigation.html b/tests/wpt/tests/trusted-types/trusted-types-navigation.html
index 74a25fa3480..f29405651f1 100644
--- a/tests/wpt/tests/trusted-types/trusted-types-navigation.html
+++ b/tests/wpt/tests/trusted-types/trusted-types-navigation.html
@@ -8,21 +8,8 @@
 <script>
   "use strict";
 
-  function expectMessage(filter) {
-    return new Promise(resolve => {
-
-      function listener(e) {
-        if (filter(e)) {
-          window.removeEventListener("message", listener);
-          resolve();
-        }
-      }
-      window.addEventListener("message", listener);
-    });
-  }
-
-  function expectViolationAsMessage(sample) {
-    const filter = e => {
+  function violationMessage(sample) {
+    return e => {
       const result = (e.data.effectiveDirective == "require-trusted-types-for" &&
                          (!sample || e.data.sample.startsWith(sample)));
       if (result) {
@@ -30,26 +17,57 @@
       }
 
       return result;
-    }
-    return new expectMessage(filter);
+    };
   }
 
-  function expectLoadedAsMessage(uri) {
-    const filter = e => {
-      const result = (e.data.type == "DOMContentLoaded" &&
-                        (!uri || e.data.uri.endsWith(uri)));
-      if (result) {
-        assert_true(true, "Expected loaded as message: " + uri);
+  function loadedMessage(searchParams, originAndPathName) {
+    return e => {
+      if (e.data.type != "DOMContentLoaded") {
+        return false;
+      }
+      let url = new URL(e.data.uri);
+      if (!url.pathname.endsWith(originAndPathName)) {
+        return false;
+      }
+      let keys = Object.keys(searchParams);
+      if (url.searchParams.size != keys.length ||
+          !keys.every(key =>
+            url.searchParams.get(key) === searchParams[key].toString())) {
+        return false;
       }
 
-      return result;
-    }
-    return new expectMessage(filter);
+      assert_true(true, `Expected loaded as message: ${joinToHref(searchParams, originAndPathName)}`);
+      return true;
+    };
   }
 
-  function openWindow(test, uri) {
+  function openWindowAndWaitMessages(test, uri, expectedMessages) {
     const win = window.open(uri);
-    test.add_cleanup(_ => win.close());
+    let messageSeen = (new Array(expectedMessages.length)).fill(false);
+    return new Promise((resolve, reject) => {
+      function listener(e) {
+        let receivedUnexpectedMessage = true;
+        expectedMessages.forEach((message, index) => {
+          if (message(e)) {
+            receivedUnexpectedMessage = false;
+            if (!messageSeen[index]) {
+              messageSeen[index] = true;
+              if (messageSeen.every(seen => seen)) {
+                resolve();
+              }
+            }
+          }
+        });
+        if (receivedUnexpectedMessage) {
+          reject(`Unexpected message received: ${JSON.stringify(e.data)}`);
+        }
+      }
+      test.add_cleanup(_ => {
+        window.removeEventListener("message", listener);
+        win.close();
+      });
+      window.addEventListener("message", listener);
+    });
   }
 
   const kFormSubmission = "form-submission";
@@ -61,105 +79,89 @@
   ];
 
   function maybeAddFormSubmissionToSearchParams(navigationElement, searchParams) {
-    return (navigationElement == kFormSubmission) ?
-      [kFormSubmission + "=1", ...searchParams] : searchParams;
+    return Object.assign(
+      navigationElement == kFormSubmission ? {kFormSubmission: 1} : {},
+      searchParams);
   }
 
   function joinToHref(searchParams, originAndPathName) {
-    if (searchParams.length > 0) {
-      return originAndPathName + "?" + searchParams.join("&");
+    let urlSearchParams = new URLSearchParams(searchParams);
+    if (urlSearchParams.size > 0) {
+      return originAndPathName + "?" + urlSearchParams.toString();
     }
 
     return originAndPathName;
   }
 
+  const kNavigationSupport = "navigation-support.html";
+  const kNavigationSupportReportOnly = "navigation-report-only-support.html";
+
   for (const navigationElement of kNavigationElements) {
     promise_test(t => {
-      const page = joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement, []),
-        "navigation-support.html");
-      openWindow(t, `support/${page}`);
-      return Promise.all([
-        expectLoadedAsMessage(page),
-        expectViolationAsMessage("Location href"),
+      const params = maybeAddFormSubmissionToSearchParams(navigationElement, {});
+      return openWindowAndWaitMessages(t, `support/${joinToHref(params, kNavigationSupport)}`, [
+        loadedMessage(params, kNavigationSupport),
+        violationMessage("Location href"),
       ]);
     }, `Navigate a window via ${navigationElement} with javascript:-urls in enforcing mode.`);
 
     promise_test(t => {
-      const page = joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement, ["defaultpolicy=1"]),
-        "navigation-support.html");
-      openWindow(t, `support/${page}`);
-      return Promise.all([
-        expectLoadedAsMessage(page),
-        expectLoadedAsMessage(page + "&" + kNavigationAttempted + "&defaultpolicywashere"),
+      const params = maybeAddFormSubmissionToSearchParams(navigationElement, {defaultpolicy: 1});
+      return openWindowAndWaitMessages(t, `support/${joinToHref(params, kNavigationSupport)}`, [
+        loadedMessage(params, kNavigationSupport),
+        loadedMessage(Object.assign({navigationattempted: 1, defaultpolicywashere: 1}, params), kNavigationSupport),
       ]);
     }, `Navigate a window via ${navigationElement} with javascript:-urls w/ default policy in enforcing mode.`);
 
     promise_test(t => {
-      const page = joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement, []),
-        "navigation-report-only-support.html");
-      openWindow(t, `support/${page}`);
-      return Promise.all([
-        expectLoadedAsMessage(page),
-        expectLoadedAsMessage(joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement,
-          [kNavigationAttempted, "continue"]), "navigation-support.html")),
+      const params = maybeAddFormSubmissionToSearchParams(navigationElement, {});
+      return openWindowAndWaitMessages(t, `support/${joinToHref(params, kNavigationSupportReportOnly)}`, [
+        loadedMessage(params, kNavigationSupportReportOnly),
+        violationMessage("Location href"),
+        loadedMessage(Object.assign({navigationattempted: 1, continue: 1}, params), kNavigationSupport),
       ]);
     }, `Navigate a window via ${navigationElement} with javascript:-urls in report-only mode.`);
 
     promise_test(t => {
-      const page = joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement, ["defaultpolicy=1"]),
-        "navigation-report-only-support.html");
-      openWindow(t, `support/${page}`);
-      return Promise.all([
-        expectLoadedAsMessage(page),
-        expectLoadedAsMessage(joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement,
-            ["defaultpolicy=1", kNavigationAttempted, "defaultpolicywashere"]),
-          "navigation-support.html")),
+      const params = maybeAddFormSubmissionToSearchParams(navigationElement, {defaultpolicy: 1});
+      return openWindowAndWaitMessages(t, `support/${joinToHref(params, kNavigationSupportReportOnly)}`, [
+        loadedMessage(params, kNavigationSupportReportOnly),
+        loadedMessage(Object.assign({navigationattempted: 1, defaultpolicywashere: 1}, params), kNavigationSupport),
       ]);
     }, `Navigate a window via ${navigationElement} with javascript:-urls w/ default policy in report-only mode.`);
 
     promise_test(t => {
-      const page = joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement, ["frame=1"]),
-        "navigation-support.html");
-      openWindow(t, `support/${page}`);
-      return Promise.all([
-        expectLoadedAsMessage(page),
-        expectViolationAsMessage("Location href"),
+      const params = maybeAddFormSubmissionToSearchParams(navigationElement, {frame: 1});
+      return openWindowAndWaitMessages(t, `support/${joinToHref(params, kNavigationSupport)}`, [
+        loadedMessage(params, kNavigationSupport),
+        violationMessage("Location href"),
       ]);
     }, `Navigate a frame via ${navigationElement} with javascript:-urls in enforcing mode.`);
 
     promise_test(t => {
-      const page = joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement,
-          ["defaultpolicy=1", "frame=1"]),
-        "navigation-support.html");
-      openWindow(t, `support/${page}`);
-      return Promise.all([
-        expectLoadedAsMessage(page),
-        expectLoadedAsMessage(page + "&" + kNavigationAttempted + "&defaultpolicywashere"),
+      const params = maybeAddFormSubmissionToSearchParams(navigationElement,
+        {defaultpolicy: 1, frame: 1});
+      return openWindowAndWaitMessages(t, `support/${joinToHref(params, kNavigationSupport)}`, [
+        loadedMessage(params, kNavigationSupport),
+        loadedMessage(Object.assign({navigationattempted: 1, defaultpolicywashere: 1}, params), kNavigationSupport),
       ]);
     }, `Navigate a frame via ${navigationElement} with javascript:-urls w/ default policy in enforcing mode.`);
 
     promise_test(t => {
-      const page = joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement, ["frame=1"]),
-        "navigation-report-only-support.html");
-      openWindow(t, `support/${page}`);
-      return Promise.all([
-        expectLoadedAsMessage(page),
-        expectLoadedAsMessage(joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement,
-            ["frame=1", kNavigationAttempted, "continue"]),
-          "navigation-support.html")),
+      const params = maybeAddFormSubmissionToSearchParams(navigationElement, {frame: 1})
+      return openWindowAndWaitMessages(t, `support/${joinToHref(params, kNavigationSupportReportOnly)}`, [
+        loadedMessage(params, kNavigationSupportReportOnly),
+        violationMessage("Location href"),
+        loadedMessage(Object.assign({navigationattempted: 1, continue: 1}, params), kNavigationSupport),
       ]);
     }, `Navigate a frame via ${navigationElement} with javascript:-urls in report-only mode.`);
 
     promise_test(t => {
-      const page = joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement,
-          ["defaultpolicy=1", "frame=1"]),
-          "navigation-report-only-support.html");
-      openWindow(t, `support/${page}`);
-      return Promise.all([
-        expectLoadedAsMessage(page),
-        expectLoadedAsMessage(joinToHref(maybeAddFormSubmissionToSearchParams(navigationElement,
-            ["defaultpolicy=1", "frame=1", kNavigationAttempted, "defaultpolicywashere"]),
-          "navigation-support.html")),
+      const params = maybeAddFormSubmissionToSearchParams(navigationElement,
+                                                          {defaultpolicy: 1, frame: 1});
+      return openWindowAndWaitMessages(t, `support/${joinToHref(params, kNavigationSupportReportOnly)}`, [
+        loadedMessage(params, kNavigationSupportReportOnly),
+        loadedMessage(Object.assign({navigationattempted: 1, defaultpolicywashere: 1}, params), kNavigationSupport),
       ]);
     }, `Navigate a frame via ${navigationElement} with javascript:-urls w/ default policy in report-only mode.`);
   }
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-clipping-of-sample.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-clipping-of-sample.html
new file mode 100644
index 00000000000..1e4a8470ad1
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-clipping-of-sample.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<script src="/resources/testharness.js" ></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy" content="trusted-types 'none'">
+<meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'">
+<meta http-equiv="Content-Security-Policy" content="connect-src 'none'">
+<body>
+<script>
+  const clippedSampleLength = 40;
+  [
+    // Strings with ASCII characters.
+    'A'.repeat(clippedSampleLength - 1),
+    'B'.repeat(clippedSampleLength),
+    'C'.repeat(clippedSampleLength + 1),
+
+    // Strings with non-ASCII BMP characters.
+    'Ð'.repeat(clippedSampleLength - 1),
+    'É'.repeat(clippedSampleLength),
+    '℉'.repeat(clippedSampleLength + 1),
+  ].forEach(input => {
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        window.trustedTypes.createPolicy(input, { createHTML: s => s } )
+      );
+      assert_equals(violation.originalPolicy, "trusted-types 'none'");
+      assert_equals(violation.sample, clipSampleIfNeeded(input));
+    }, `Clipping of violation sample for createPolicy(${input})`);
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        document.createElement("div").innerHTML = input
+      );
+      assert_equals(violation.originalPolicy, "require-trusted-types-for 'script'");
+      assert_equals(violation.sample, `Element innerHTML|${clipSampleIfNeeded(input)}`);
+    }, `Clipping of violation sample for Element.innerHTML = "${input}"`);
+  });
+</script>
diff --git a/tests/wpt/tests/trusted-types/trusted-types-reporting-clipping-of-sample.tentative.html b/tests/wpt/tests/trusted-types/trusted-types-reporting-clipping-of-sample.tentative.html
new file mode 100644
index 00000000000..203cff86110
--- /dev/null
+++ b/tests/wpt/tests/trusted-types/trusted-types-reporting-clipping-of-sample.tentative.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<script src="/resources/testharness.js" ></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/csp-violations.js"></script>
+<meta http-equiv="Content-Security-Policy" content="trusted-types 'none'">
+<meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'">
+<meta http-equiv="Content-Security-Policy" content="connect-src 'none'">
+<body>
+<script>
+  const clippedSampleLength = 40;
+  const inputAndClippedInput = [
+    // Strings with surrogate pairs
+    // We use Firefox's behavior as expectations i.e. clip the source as UTF-16
+    // string of length 40 ; or of length 41 if the last character is a
+    // surrogate pair). See https://github.com/w3c/webappsec-csp/issues/704
+    ['𝐆'.repeat(clippedSampleLength / 2), '𝐆'.repeat(clippedSampleLength / 2)],
+    [`H${'𝐇'.repeat(clippedSampleLength / 2)}`, `H${'𝐇'.repeat(clippedSampleLength / 2)}`],
+    [`${'𝐈'.repeat(clippedSampleLength / 2)}I`, `${'𝐈'.repeat(clippedSampleLength / 2)}`],
+    ['𝐉'.repeat(clippedSampleLength / 2 + 1), '𝐉'.repeat(clippedSampleLength / 2)],
+  ];
+
+  for (const [input, clippedInput] of inputAndClippedInput) {
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        window.trustedTypes.createPolicy(input, { createHTML: s => s } )
+      );
+      assert_equals(violation.originalPolicy, "trusted-types 'none'");
+      assert_equals(violation.sample, clippedInput);
+    }, `Clipping of violation sample for createPolicy(${input})`);
+
+    promise_test(async t => {
+      let violation = await trusted_type_violation_for(TypeError, _ =>
+        document.createElement("div").innerHTML = input
+      );
+      assert_equals(violation.originalPolicy, "require-trusted-types-for 'script'");
+      assert_equals(violation.sample, `Element innerHTML|${clippedInput}`);
+    }, `Clipping of violation sample for Element.innerHTML = "${input}"`);
+  }
+</script>
diff --git a/tests/wpt/tests/web-animations/timing-model/animations/finishing-an-animation.html b/tests/wpt/tests/web-animations/timing-model/animations/finishing-an-animation.html
index fbf6558f781..d4f36becea4 100644
--- a/tests/wpt/tests/web-animations/timing-model/animations/finishing-an-animation.html
+++ b/tests/wpt/tests/web-animations/timing-model/animations/finishing-an-animation.html
@@ -326,5 +326,13 @@ promise_test(async t => {
 
 }, 'Finishing a canceled animation sets the current and start times');
 
+promise_test(async t => {
+  const animation = createDiv(t).animate(null, 1);
+  await animation.finished;
+  const eventWatcher = new EventWatcher(t, animation, 'finish', waitForNextFrame);
+  await eventWatcher.wait_for('finish');
+}, 'Finishing an animation fires finish event when a finish event listener is '
+  + 'added as the finished promise resolves');
+
 </script>
 </body>
diff --git a/tests/wpt/tests/webaudio/the-audio-api/the-audiocontext-interface/audiocontext-sinkid-constructor.https.html b/tests/wpt/tests/webaudio/the-audio-api/the-audiocontext-interface/audiocontext-sinkid-constructor.https.html
index d2dc54aee6a..6e1bdb22d52 100644
--- a/tests/wpt/tests/webaudio/the-audio-api/the-audiocontext-interface/audiocontext-sinkid-constructor.https.html
+++ b/tests/wpt/tests/webaudio/the-audio-api/the-audiocontext-interface/audiocontext-sinkid-constructor.https.html
@@ -28,9 +28,12 @@ navigator.mediaDevices.getUserMedia({audio: true}).then(() => {
     async_test(t => testAudioSinkOptions(t),
                'Setting sinkId with an AudioSinkOptions at construction ' +
                'should succeed.');
-    async_test(t => testExceptions(t),
-               'Invalid sinkId arguments should throw an appropriate ' +
-               'exception.')
+    async_test(t => testOnErrorWrongType(t),
+               'Invalid sinkId argument with a wrong type should throw '+
+               'an appropriate exception.');
+    async_test(t => testOnErrorWrongId(t),
+               'Invalid sinkId argument with a wrong ID should dispatch ' +
+               'an onerror event.')
   });
 });
 
@@ -92,35 +95,38 @@ const testAudioSinkOptions = (t) => {
 // https://webaudio.github.io/web-audio-api/#validating-sink-identifier
 
 // Step 3. If document is not allowed to use the feature identified by
-// "speaker-selection", return a new DOMException whose name is
-// "NotAllowedError".
+// "speaker-selection", return false.
 // TODO(https://crbug.com/1380872): Due to the lack of "speaker-selection"
 // implementation, a test for such step does not exist yet.
 
-const testExceptions = (t) => {
+const testOnErrorWrongType = (t) => {
   t.step(() => {
-    // The wrong AudioSinkOption.type should cause a TypeError.
+    // The wrong AudioSinkOption.type should cause a TypeError. This exception
+    // is thrown at the IDL validation level.
     assert_throws_js(TypeError, () => {
       const audioContext = new AudioContext({sinkId: {type: 'something_else'}});
       audioContext.close();
     }, 'An invalid AudioSinkOptions.type value should throw a TypeError ' +
-       'exception.');
-  });
-
-  t.step(() => {
-    // Step 4. If sinkIdArg is a type of DOMString but it is not equal to the
-    // empty string or it does not match any audio output device identified by
-    // the result that would be provided by enumerateDevices(), return a new
-    // DOMException whose name is "NotFoundError".
-    // TODO(https://crbug.com/1439947): This does not throw in Chromium because
-    // the logic automatically fallbacks to the default device when a given ID
-    // is invalid.
-    assert_throws_dom('NotFoundError', () => {
-      const audioContext = new AudioContext({sinkId: 'some_random_device_id'});
-      audioContext.close();
-    }, 'An invalid device identifier should throw a NotFoundError exception.');
+     'exception.');
   });
   t.done();
 };
+
+// Step 4. If sinkIdArg is a type of DOMString but it is not equal to the
+// empty string or it does not match any audio output device identified by
+// the result that would be provided by enumerateDevices(), return false.
+//
+// When validation returns a false value, the context dispatches an onerror
+// event.
+const testOnErrorWrongId = (t) => {
+  // An invalid device ID should dispatch an onerror event.
+  const audioContext = new AudioContext({sinkId: 'some_random_device_id'});
+  audioContext.addEventListener('error', () => {
+    audioContext.close();
+    t.done();
+  }, {once: true});
+  t.step_timeout(t.unreached_func('onerror not fired on invalid device ID'),
+                 100);
+};
 </script>
 </html>
diff --git a/tests/wpt/tests/webdriver/tests/bidi/network/response_completed/response_completed_cached.py b/tests/wpt/tests/webdriver/tests/bidi/network/response_completed/response_completed_cached.py
index 3f5cbad1047..2c7ea02d601 100644
--- a/tests/wpt/tests/webdriver/tests/bidi/network/response_completed/response_completed_cached.py
+++ b/tests/wpt/tests/webdriver/tests/bidi/network/response_completed/response_completed_cached.py
@@ -561,6 +561,14 @@ async def test_page_with_cached_script_javascript(
         )
 
 
+@pytest.mark.parametrize(
+    "kind, module_template",
+    [
+        ("top-level", """<script type="module" src="{url}">"""),
+        ("statically-imported", """<script type="module">import foo from "{url}"; foo();</script>"""),
+        ("dynamically-imported", """<script type="module">const ns = await import("{url}"); ns.default();</script>"""),
+    ]
+)
 @pytest.mark.asyncio
 async def test_page_with_cached_javascript_module(
     bidi_session,
@@ -568,6 +576,8 @@ async def test_page_with_cached_javascript_module(
     inline,
     setup_network_test,
     top_context,
+    kind,
+    module_template,
 ):
     network_events = await setup_network_test(
         events=[
@@ -579,14 +589,12 @@ async def test_page_with_cached_javascript_module(
     cached_js_module_url = url(
         get_cached_url("text/javascript", SCRIPT_CONSOLE_LOG_IN_MODULE)
     )
+    module_script_tag = module_template.format(url=cached_js_module_url)
     page_with_cached_js_module = inline(
         f"""
         <body>
-            test page with cached js module
-            <script type="module">
-                import foo from "{cached_js_module_url}";
-                foo();
-            </script>
+            test page with cached {kind} js module
+            {module_script_tag}
         </body>
         """,
     )
@@ -638,15 +646,9 @@ async def test_page_with_cached_javascript_module(
     page_with_2_cached_js_modules = inline(
         f"""
         <body>
-            test page with 2 cached javascript modules
-            <script type="module">
-                import foo from "{cached_js_module_url}";
-                foo();
-            </script>
-            <script type="module">
-                import foo from "{cached_js_module_url}";
-                foo();
-            </script>
+            test page with 2 cached {kind} js modules
+            {module_script_tag}
+            {module_script_tag}
         </body>
         """,
     )
diff --git a/tests/wpt/tests/webdriver/tests/bidi/network/response_started/response_started_cached.py b/tests/wpt/tests/webdriver/tests/bidi/network/response_started/response_started_cached.py
index 57db04a3afe..db34035fca1 100644
--- a/tests/wpt/tests/webdriver/tests/bidi/network/response_started/response_started_cached.py
+++ b/tests/wpt/tests/webdriver/tests/bidi/network/response_started/response_started_cached.py
@@ -568,6 +568,14 @@ async def test_page_with_cached_script_javascript(
         )
 
 
+@pytest.mark.parametrize(
+    "kind, module_template",
+    [
+        ("top-level", """<script type="module" src="{url}">"""),
+        ("statically-imported", """<script type="module">import foo from "{url}"; foo();</script>"""),
+        ("dynamically-imported", """<script type="module">const ns = await import("{url}"); ns.default();</script>"""),
+    ]
+)
 @pytest.mark.asyncio
 async def test_page_with_cached_javascript_module(
     bidi_session,
@@ -575,6 +583,8 @@ async def test_page_with_cached_javascript_module(
     inline,
     setup_network_test,
     top_context,
+    kind,
+    module_template,
 ):
     network_events = await setup_network_test(
         events=[
@@ -586,14 +596,12 @@ async def test_page_with_cached_javascript_module(
     cached_js_module_url = url(
         get_cached_url("text/javascript", SCRIPT_CONSOLE_LOG_IN_MODULE)
     )
+    module_script_tag = module_template.format(url=cached_js_module_url)
     page_with_cached_js_module = inline(
         f"""
         <body>
-            test page with cached js module
-            <script type="module">
-                import foo from "{cached_js_module_url}";
-                foo();
-            </script>
+            test page with cached {kind} js module
+            {module_script_tag}
         </body>
         """,
     )
@@ -642,15 +650,9 @@ async def test_page_with_cached_javascript_module(
     page_with_2_cached_js_modules = inline(
         f"""
         <body>
-            test page with 2 cached javascript modules
-            <script type="module">
-                import foo from "{cached_js_module_url}";
-                foo();
-            </script>
-            <script type="module">
-                import foo from "{cached_js_module_url}";
-                foo();
-            </script>
+            test page with 2 cached {kind} js modules
+            {module_script_tag}
+            {module_script_tag}
         </body>
         """,
     )
diff --git a/tests/wpt/tests/webdriver/tests/support/fixtures.py b/tests/wpt/tests/webdriver/tests/support/fixtures.py
index 21dbfcc25bc..6ccf394f27c 100644
--- a/tests/wpt/tests/webdriver/tests/support/fixtures.py
+++ b/tests/wpt/tests/webdriver/tests/support/fixtures.py
@@ -10,6 +10,7 @@ from urllib.parse import urlunsplit
 
 from tests.support import defaults
 from tests.support.helpers import cleanup_session, deep_update
+from tests.support.web_extension import EXTENSION_DATA
 from tests.support.inline import build_inline
 from tests.support.http_request import HTTPRequest
 from tests.support.keys import Keys
@@ -296,6 +297,13 @@ def inline(url):
     return inline
 
 
+@pytest.fixture
+def extension_data(current_session):
+    browser_name = current_session.capabilities["browserName"]
+
+    return EXTENSION_DATA[browser_name]
+
+
 @pytest.fixture
 def iframe(inline):
     """Inline document extract as the source document of an <iframe>."""
diff --git a/tests/wpt/tests/webdriver/tests/bidi/web_extension/conftest.py b/tests/wpt/tests/webdriver/tests/support/web_extension.py
similarity index 83%
rename from tests/wpt/tests/webdriver/tests/bidi/web_extension/conftest.py
rename to tests/wpt/tests/webdriver/tests/support/web_extension.py
index e59af399b07..ba9473a7947 100644
--- a/tests/wpt/tests/webdriver/tests/bidi/web_extension/conftest.py
+++ b/tests/wpt/tests/webdriver/tests/support/web_extension.py
@@ -18,10 +18,3 @@ EXTENSION_DATA = {
         "base64": get_base64_for_extension_file("chrome/packed.crx"),
     }
 }
-
-
-@pytest.fixture
-def extension_data(current_session):
-    browser_name = current_session.capabilities["browserName"]
-
-    return EXTENSION_DATA[browser_name]
diff --git a/tests/wpt/tests/webmessaging/WEB_FEATURES.yml b/tests/wpt/tests/webmessaging/WEB_FEATURES.yml
new file mode 100644
index 00000000000..0aacecad892
--- /dev/null
+++ b/tests/wpt/tests/webmessaging/WEB_FEATURES.yml
@@ -0,0 +1,5 @@
+features:
+- name: messageerror
+  files:
+  - messageerror.html
+  - postMessage_CryptoKey_insecure.sub.html
diff --git a/tests/wpt/tests/webnn/conformance_tests/add.https.any.js b/tests/wpt/tests/webnn/conformance_tests/add.https.any.js
index ad1df74b65a..be82df1dc28 100644
--- a/tests/wpt/tests/webnn/conformance_tests/add.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/add.https.any.js
@@ -576,6 +576,433 @@ const addTests = [
         }
       }
     }
+  },
+
+  // float16 tests
+  {
+    'name': 'add float16 1D constant tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -43.34375, -67.875,   26.46875,   36.75,      -65.1875, -87.6875,
+            65.25,     -74.0625,  -13.828125, 6.98046875, 99.8125,  55.8125,
+            -75.5625,  11.5,      17.109375,  95.8125,    57.4375,  -57.1875,
+            27.71875,  -18.21875, 52.65625,   -70,        39.8125,  -29.984375
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        },
+        'inputB': {
+          'data': [
+            -59.75,    -44.8125,  -87.9375,   1.884765625, 84.875,
+            47.5625,   85.625,    43.03125,   -60.25,      15.609375,
+            70.625,    -7.453125, -30.203125, -97.6875,    -0.0098419189453125,
+            -77.6875,  30.203125, -59.1875,   89.375,      28.6875,
+            -29.71875, -90.625,   28.28125,   27.65625
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        }
+      },
+      'operators': [{
+        'name': 'add',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -103.125, -112.6875, -61.46875, 38.625,   19.6875, -40.125,
+            150.875,  -31.03125, -74.0625,  22.59375, 170.5,   48.375,
+            -105.75,  -86.1875,  17.09375,  18.125,   87.625,  -116.375,
+            117.125,  10.46875,  22.9375,   -160.625, 68.125,  -2.328125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'add float16 1D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -43.34375, -67.875,   26.46875,   36.75,      -65.1875, -87.6875,
+            65.25,     -74.0625,  -13.828125, 6.98046875, 99.8125,  55.8125,
+            -75.5625,  11.5,      17.109375,  95.8125,    57.4375,  -57.1875,
+            27.71875,  -18.21875, 52.65625,   -70,        39.8125,  -29.984375
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -59.75,    -44.8125,  -87.9375,   1.884765625, 84.875,
+            47.5625,   85.625,    43.03125,   -60.25,      15.609375,
+            70.625,    -7.453125, -30.203125, -97.6875,    -0.0098419189453125,
+            -77.6875,  30.203125, -59.1875,   89.375,      28.6875,
+            -29.71875, -90.625,   28.28125,   27.65625
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'add',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -103.125, -112.6875, -61.46875, 38.625,   19.6875, -40.125,
+            150.875,  -31.03125, -74.0625,  22.59375, 170.5,   48.375,
+            -105.75,  -86.1875,  17.09375,  18.125,   87.625,  -116.375,
+            117.125,  10.46875,  22.9375,   -160.625, 68.125,  -2.328125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'add float16 2D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -43.34375, -67.875,   26.46875,   36.75,      -65.1875, -87.6875,
+            65.25,     -74.0625,  -13.828125, 6.98046875, 99.8125,  55.8125,
+            -75.5625,  11.5,      17.109375,  95.8125,    57.4375,  -57.1875,
+            27.71875,  -18.21875, 52.65625,   -70,        39.8125,  -29.984375
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -59.75,    -44.8125,  -87.9375,   1.884765625, 84.875,
+            47.5625,   85.625,    43.03125,   -60.25,      15.609375,
+            70.625,    -7.453125, -30.203125, -97.6875,    -0.0098419189453125,
+            -77.6875,  30.203125, -59.1875,   89.375,      28.6875,
+            -29.71875, -90.625,   28.28125,   27.65625
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'add',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -103.125, -112.6875, -61.46875, 38.625,   19.6875, -40.125,
+            150.875,  -31.03125, -74.0625,  22.59375, 170.5,   48.375,
+            -105.75,  -86.1875,  17.09375,  18.125,   87.625,  -116.375,
+            117.125,  10.46875,  22.9375,   -160.625, 68.125,  -2.328125
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'add float16 3D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -43.34375, -67.875,   26.46875,   36.75,      -65.1875, -87.6875,
+            65.25,     -74.0625,  -13.828125, 6.98046875, 99.8125,  55.8125,
+            -75.5625,  11.5,      17.109375,  95.8125,    57.4375,  -57.1875,
+            27.71875,  -18.21875, 52.65625,   -70,        39.8125,  -29.984375
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -59.75,    -44.8125,  -87.9375,   1.884765625, 84.875,
+            47.5625,   85.625,    43.03125,   -60.25,      15.609375,
+            70.625,    -7.453125, -30.203125, -97.6875,    -0.0098419189453125,
+            -77.6875,  30.203125, -59.1875,   89.375,      28.6875,
+            -29.71875, -90.625,   28.28125,   27.65625
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'add',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -103.125, -112.6875, -61.46875, 38.625,   19.6875, -40.125,
+            150.875,  -31.03125, -74.0625,  22.59375, 170.5,   48.375,
+            -105.75,  -86.1875,  17.09375,  18.125,   87.625,  -116.375,
+            117.125,  10.46875,  22.9375,   -160.625, 68.125,  -2.328125
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'add float16 4D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -43.34375, -67.875,   26.46875,   36.75,      -65.1875, -87.6875,
+            65.25,     -74.0625,  -13.828125, 6.98046875, 99.8125,  55.8125,
+            -75.5625,  11.5,      17.109375,  95.8125,    57.4375,  -57.1875,
+            27.71875,  -18.21875, 52.65625,   -70,        39.8125,  -29.984375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -59.75,    -44.8125,  -87.9375,   1.884765625, 84.875,
+            47.5625,   85.625,    43.03125,   -60.25,      15.609375,
+            70.625,    -7.453125, -30.203125, -97.6875,    -0.0098419189453125,
+            -77.6875,  30.203125, -59.1875,   89.375,      28.6875,
+            -29.71875, -90.625,   28.28125,   27.65625
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'add',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -103.125, -112.6875, -61.46875, 38.625,   19.6875, -40.125,
+            150.875,  -31.03125, -74.0625,  22.59375, 170.5,   48.375,
+            -105.75,  -86.1875,  17.09375,  18.125,   87.625,  -116.375,
+            117.125,  10.46875,  22.9375,   -160.625, 68.125,  -2.328125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'add float16 5D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -43.34375, -67.875,   26.46875,   36.75,      -65.1875, -87.6875,
+            65.25,     -74.0625,  -13.828125, 6.98046875, 99.8125,  55.8125,
+            -75.5625,  11.5,      17.109375,  95.8125,    57.4375,  -57.1875,
+            27.71875,  -18.21875, 52.65625,   -70,        39.8125,  -29.984375
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -59.75,    -44.8125,  -87.9375,   1.884765625, 84.875,
+            47.5625,   85.625,    43.03125,   -60.25,      15.609375,
+            70.625,    -7.453125, -30.203125, -97.6875,    -0.0098419189453125,
+            -77.6875,  30.203125, -59.1875,   89.375,      28.6875,
+            -29.71875, -90.625,   28.28125,   27.65625
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'add',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -103.125, -112.6875, -61.46875, 38.625,   19.6875, -40.125,
+            150.875,  -31.03125, -74.0625,  22.59375, 170.5,   48.375,
+            -105.75,  -86.1875,  17.09375,  18.125,   87.625,  -116.375,
+            117.125,  10.46875,  22.9375,   -160.625, 68.125,  -2.328125
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'add float16 broadcast 1D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [-59.375],
+          'descriptor': {shape: [1], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -43.34375, -67.875,   26.46875,   36.75,      -65.1875, -87.6875,
+            65.25,     -74.0625,  -13.828125, 6.98046875, 99.8125,  55.8125,
+            -75.5625,  11.5,      17.109375,  95.8125,    57.4375,  -57.1875,
+            27.71875,  -18.21875, 52.65625,   -70,        39.8125,  -29.984375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'add',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -102.75,   -127.25, -32.90625, -22.625,   -124.5625, -147,
+            5.875,     -133.5,  -73.1875,  -52.40625, 40.4375,   -3.5625,
+            -135,      -47.875, -42.25,    36.4375,   -1.9375,   -116.5625,
+            -31.65625, -77.625, -6.71875,  -129.375,  -19.5625,  -89.375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'add float16 broadcast 2D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -43.34375, -67.875,   26.46875,   36.75,      -65.1875, -87.6875,
+            65.25,     -74.0625,  -13.828125, 6.98046875, 99.8125,  55.8125,
+            -75.5625,  11.5,      17.109375,  95.8125,    57.4375,  -57.1875,
+            27.71875,  -18.21875, 52.65625,   -70,        39.8125,  -29.984375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [-17.984375, -70.4375, -12.765625, 24.25, -68.125, 30.625],
+          'descriptor': {shape: [2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'add',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -61.3125, -138.25,  13.703125, 61,        -133.25,  -57.0625,
+            47.25,    -144.5,   -26.59375, 31.234375, 31.6875,  86.4375,
+            -93.5625, -58.9375, 4.34375,   120.0625,  -10.6875, -26.5625,
+            9.734375, -88.625,  39.875,    -45.75,    -28.3125, 0.640625
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'add float16 broadcast 3D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -43.34375, -67.875,   26.46875,   36.75,      -65.1875, -87.6875,
+            65.25,     -74.0625,  -13.828125, 6.98046875, 99.8125,  55.8125,
+            -75.5625,  11.5,      17.109375,  95.8125,    57.4375,  -57.1875,
+            27.71875,  -18.21875, 52.65625,   -70,        39.8125,  -29.984375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [-32.34375, 43.125, 78.6875, -54.5],
+          'descriptor': {shape: [2, 2, 1], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'add',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -75.6875, -100.25,   -5.875,     79.875,    -22.0625, -44.5625,
+            144,      4.625,     64.875,     -47.53125, 45.3125,  1.3125,
+            -107.875, -20.84375, -15.234375, 139,       100.5625, -14.0625,
+            106.375,  60.46875,  131.375,    -124.5,    -14.6875, -84.5
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'add float16 broadcast 4D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [-59.375],
+          'descriptor': {shape: [1, 1, 1, 1], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -43.34375, -67.875,   26.46875,   36.75,      -65.1875, -87.6875,
+            65.25,     -74.0625,  -13.828125, 6.98046875, 99.8125,  55.8125,
+            -75.5625,  11.5,      17.109375,  95.8125,    57.4375,  -57.1875,
+            27.71875,  -18.21875, 52.65625,   -70,        39.8125,  -29.984375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'add',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -102.75,   -127.25, -32.90625, -22.625,   -124.5625, -147,
+            5.875,     -133.5,  -73.1875,  -52.40625, 40.4375,   -3.5625,
+            -135,      -47.875, -42.25,    36.4375,   -1.9375,   -116.5625,
+            -31.65625, -77.625, -6.71875,  -129.375,  -19.5625,  -89.375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'add float16 large inputs',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': 89.3125,
+          'descriptor': {shape: [6000, 6000], dataType: 'float16'},
+          'constant': true
+        },
+        'inputB': {
+          'data': 77.25,
+          'descriptor': {shape: [6000, 6000], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'add',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': 166.5,
+          'descriptor': {shape: [6000, 6000], dataType: 'float16'}
+        }
+      }
+    }
   }
 ];
 
diff --git a/tests/wpt/tests/webnn/conformance_tests/dequantizeLinear.https.any.js b/tests/wpt/tests/webnn/conformance_tests/dequantizeLinear.https.any.js
index 310dd03fcb5..35c15055661 100644
--- a/tests/wpt/tests/webnn/conformance_tests/dequantizeLinear.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/dequantizeLinear.https.any.js
@@ -656,6 +656,55 @@ const dequantizeLinearTests = [
       }
     }
   },
+  {
+    'name': 'dequantizeLinear as an intermediate node',
+    'graph': {
+      'inputs': {
+        'dequantizeLinearInput': {
+          'data': [34, 23],
+          'descriptor': {shape: [2, 1], dataType: 'int32'},
+          'constant': false
+        },
+        'dequantizeLinearScale': {
+          'data': [1.1202747821807861, 0.2800687253475189],
+          'descriptor': {shape: [2], dataType: 'float32'},
+          'constant': true
+        },
+        'dequantizeLinearZeroPoint': {
+          'data': [35, -24],
+          'descriptor': {shape: [2], dataType: 'int32'},
+          'constant': true
+        }
+      },
+      'operators': [
+        {
+          'name': 'transpose',
+          'arguments': [
+            {'input': 'dequantizeLinearInput'}, {
+              'options': {
+                'permutation': [1, 0],
+              }
+            }
+          ],
+          'outputs': 'transposeOutput'
+        },
+        {
+          'name': 'dequantizeLinear',
+          'arguments': [
+            {'input': 'transposeOutput'}, {'scale': 'dequantizeLinearScale'},
+            {'zeroPoint': 'dequantizeLinearZeroPoint'}
+          ],
+          'outputs': 'dequantizeLinearOutput'
+        }
+      ],
+      'expectedOutputs': {
+        'dequantizeLinearOutput': {
+          'data': [-1.1202747821807861, 13.163229942321777],
+          'descriptor': {shape: [1, 2], dataType: 'float32'}
+        }
+      }
+    }
+  },
 ];
 
 if (navigator.ml) {
diff --git a/tests/wpt/tests/webnn/conformance_tests/div.https.any.js b/tests/wpt/tests/webnn/conformance_tests/div.https.any.js
index 1fb80fe17ed..1914c4829c4 100644
--- a/tests/wpt/tests/webnn/conformance_tests/div.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/div.https.any.js
@@ -522,6 +522,444 @@ const divTests = [
         }
       }
     }
+  },
+
+  // float16 tests
+  {
+    'name': 'div float16 1D constant tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            60.4375,     -86.9375,     -19.5,     -15.1484375, 13.453125,
+            45.4375,     61.09375,     70.75,     -31.28125,   56.09375,
+            39,          -3.275390625, 32.28125,  -3.67578125, 88.4375,
+            14.3671875,  13.9453125,   16.859375, 4.81640625,  44.15625,
+            -13.0859375, 44.5625,      -34.90625, -74.125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        },
+        'inputB': {
+          'data': [
+            -95,      62.8125,  -85.3125, -68.1875,     79.4375,     -68.6875,
+            -94.4375, -10,      18.3125,  -3.623046875, -5.95703125, 89.5,
+            94.9375,  -79,      -79.875,  75,           25.859375,   91.5625,
+            81.625,   48.21875, 63.375,   10.625,       46.125,      77.25
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        }
+      },
+      'operators': [{
+        'name': 'div',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -0.63623046875,   -1.3837890625,     0.228515625,
+            0.22216796875,    0.1693115234375,   -0.66162109375,
+            -0.64697265625,   -7.07421875,       -1.7080078125,
+            -15.484375,       -6.546875,         -0.036590576171875,
+            0.340087890625,   0.046539306640625, -1.107421875,
+            0.1915283203125,  0.5390625,         0.18408203125,
+            0.05902099609375, 0.91552734375,     -0.20654296875,
+            4.1953125,        -0.7568359375,     -0.95947265625
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'div float16 1D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            60.4375,     -86.9375,     -19.5,     -15.1484375, 13.453125,
+            45.4375,     61.09375,     70.75,     -31.28125,   56.09375,
+            39,          -3.275390625, 32.28125,  -3.67578125, 88.4375,
+            14.3671875,  13.9453125,   16.859375, 4.81640625,  44.15625,
+            -13.0859375, 44.5625,      -34.90625, -74.125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -95,      62.8125,  -85.3125, -68.1875,     79.4375,     -68.6875,
+            -94.4375, -10,      18.3125,  -3.623046875, -5.95703125, 89.5,
+            94.9375,  -79,      -79.875,  75,           25.859375,   91.5625,
+            81.625,   48.21875, 63.375,   10.625,       46.125,      77.25
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'div',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -0.63623046875,   -1.3837890625,     0.228515625,
+            0.22216796875,    0.1693115234375,   -0.66162109375,
+            -0.64697265625,   -7.07421875,       -1.7080078125,
+            -15.484375,       -6.546875,         -0.036590576171875,
+            0.340087890625,   0.046539306640625, -1.107421875,
+            0.1915283203125,  0.5390625,         0.18408203125,
+            0.05902099609375, 0.91552734375,     -0.20654296875,
+            4.1953125,        -0.7568359375,     -0.95947265625
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'div float16 2D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            60.4375,     -86.9375,     -19.5,     -15.1484375, 13.453125,
+            45.4375,     61.09375,     70.75,     -31.28125,   56.09375,
+            39,          -3.275390625, 32.28125,  -3.67578125, 88.4375,
+            14.3671875,  13.9453125,   16.859375, 4.81640625,  44.15625,
+            -13.0859375, 44.5625,      -34.90625, -74.125
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -95,      62.8125,  -85.3125, -68.1875,     79.4375,     -68.6875,
+            -94.4375, -10,      18.3125,  -3.623046875, -5.95703125, 89.5,
+            94.9375,  -79,      -79.875,  75,           25.859375,   91.5625,
+            81.625,   48.21875, 63.375,   10.625,       46.125,      77.25
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'div',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -0.63623046875,   -1.3837890625,     0.228515625,
+            0.22216796875,    0.1693115234375,   -0.66162109375,
+            -0.64697265625,   -7.07421875,       -1.7080078125,
+            -15.484375,       -6.546875,         -0.036590576171875,
+            0.340087890625,   0.046539306640625, -1.107421875,
+            0.1915283203125,  0.5390625,         0.18408203125,
+            0.05902099609375, 0.91552734375,     -0.20654296875,
+            4.1953125,        -0.7568359375,     -0.95947265625
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'div float16 3D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            60.4375,     -86.9375,     -19.5,     -15.1484375, 13.453125,
+            45.4375,     61.09375,     70.75,     -31.28125,   56.09375,
+            39,          -3.275390625, 32.28125,  -3.67578125, 88.4375,
+            14.3671875,  13.9453125,   16.859375, 4.81640625,  44.15625,
+            -13.0859375, 44.5625,      -34.90625, -74.125
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -95,      62.8125,  -85.3125, -68.1875,     79.4375,     -68.6875,
+            -94.4375, -10,      18.3125,  -3.623046875, -5.95703125, 89.5,
+            94.9375,  -79,      -79.875,  75,           25.859375,   91.5625,
+            81.625,   48.21875, 63.375,   10.625,       46.125,      77.25
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'div',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -0.63623046875,   -1.3837890625,     0.228515625,
+            0.22216796875,    0.1693115234375,   -0.66162109375,
+            -0.64697265625,   -7.07421875,       -1.7080078125,
+            -15.484375,       -6.546875,         -0.036590576171875,
+            0.340087890625,   0.046539306640625, -1.107421875,
+            0.1915283203125,  0.5390625,         0.18408203125,
+            0.05902099609375, 0.91552734375,     -0.20654296875,
+            4.1953125,        -0.7568359375,     -0.95947265625
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'div float16 4D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            60.4375,     -86.9375,     -19.5,     -15.1484375, 13.453125,
+            45.4375,     61.09375,     70.75,     -31.28125,   56.09375,
+            39,          -3.275390625, 32.28125,  -3.67578125, 88.4375,
+            14.3671875,  13.9453125,   16.859375, 4.81640625,  44.15625,
+            -13.0859375, 44.5625,      -34.90625, -74.125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -95,      62.8125,  -85.3125, -68.1875,     79.4375,     -68.6875,
+            -94.4375, -10,      18.3125,  -3.623046875, -5.95703125, 89.5,
+            94.9375,  -79,      -79.875,  75,           25.859375,   91.5625,
+            81.625,   48.21875, 63.375,   10.625,       46.125,      77.25
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'div',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -0.63623046875,   -1.3837890625,     0.228515625,
+            0.22216796875,    0.1693115234375,   -0.66162109375,
+            -0.64697265625,   -7.07421875,       -1.7080078125,
+            -15.484375,       -6.546875,         -0.036590576171875,
+            0.340087890625,   0.046539306640625, -1.107421875,
+            0.1915283203125,  0.5390625,         0.18408203125,
+            0.05902099609375, 0.91552734375,     -0.20654296875,
+            4.1953125,        -0.7568359375,     -0.95947265625
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'div float16 5D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            60.4375,     -86.9375,     -19.5,     -15.1484375, 13.453125,
+            45.4375,     61.09375,     70.75,     -31.28125,   56.09375,
+            39,          -3.275390625, 32.28125,  -3.67578125, 88.4375,
+            14.3671875,  13.9453125,   16.859375, 4.81640625,  44.15625,
+            -13.0859375, 44.5625,      -34.90625, -74.125
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -95,      62.8125,  -85.3125, -68.1875,     79.4375,     -68.6875,
+            -94.4375, -10,      18.3125,  -3.623046875, -5.95703125, 89.5,
+            94.9375,  -79,      -79.875,  75,           25.859375,   91.5625,
+            81.625,   48.21875, 63.375,   10.625,       46.125,      77.25
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'div',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -0.63623046875,   -1.3837890625,     0.228515625,
+            0.22216796875,    0.1693115234375,   -0.66162109375,
+            -0.64697265625,   -7.07421875,       -1.7080078125,
+            -15.484375,       -6.546875,         -0.036590576171875,
+            0.340087890625,   0.046539306640625, -1.107421875,
+            0.1915283203125,  0.5390625,         0.18408203125,
+            0.05902099609375, 0.91552734375,     -0.20654296875,
+            4.1953125,        -0.7568359375,     -0.95947265625
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'div float16 broadcast 1D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [-41.8125],
+          'descriptor': {shape: [1], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            60.4375,     -86.9375,     -19.5,     -15.1484375, 13.453125,
+            45.4375,     61.09375,     70.75,     -31.28125,   56.09375,
+            39,          -3.275390625, 32.28125,  -3.67578125, 88.4375,
+            14.3671875,  13.9453125,   16.859375, 4.81640625,  44.15625,
+            -13.0859375, 44.5625,      -34.90625, -74.125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'div',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -0.69189453125, 0.48095703125,  2.14453125,      2.759765625,
+            -3.107421875,   -0.92041015625, -0.6845703125,   -0.5908203125,
+            1.3369140625,   -0.74560546875, -1.072265625,    12.765625,
+            -1.294921875,   11.375,         -0.472900390625, -2.91015625,
+            -2.998046875,   -2.48046875,    -8.6796875,      -0.94677734375,
+            3.1953125,      -0.9384765625,  1.1982421875,    0.56396484375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'div float16 broadcast 2D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            60.4375,     -86.9375,     -19.5,     -15.1484375, 13.453125,
+            45.4375,     61.09375,     70.75,     -31.28125,   56.09375,
+            39,          -3.275390625, 32.28125,  -3.67578125, 88.4375,
+            14.3671875,  13.9453125,   16.859375, 4.81640625,  44.15625,
+            -13.0859375, 44.5625,      -34.90625, -74.125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [97.3125, 36.3125, 26.03125, 99.5, 10.3984375, -30.78125],
+          'descriptor': {shape: [2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'div',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            0.62109375,       -2.39453125,      -0.7490234375,
+            -0.1522216796875, 1.2939453125,     -1.4765625,
+            0.6279296875,     1.9482421875,     -1.2021484375,
+            0.56396484375,    3.75,             0.10638427734375,
+            0.331787109375,   -0.1011962890625, 3.396484375,
+            0.1444091796875,  1.3408203125,     -0.5478515625,
+            0.04949951171875, 1.2158203125,     -0.5029296875,
+            0.44775390625,    -3.357421875,     2.408203125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'div float16 broadcast 3D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            60.4375,     -86.9375,     -19.5,     -15.1484375, 13.453125,
+            45.4375,     61.09375,     70.75,     -31.28125,   56.09375,
+            39,          -3.275390625, 32.28125,  -3.67578125, 88.4375,
+            14.3671875,  13.9453125,   16.859375, 4.81640625,  44.15625,
+            -13.0859375, 44.5625,      -34.90625, -74.125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [75.0625, -46.21875, 15.765625, 8.921875],
+          'descriptor': {shape: [2, 2, 1], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'div',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            0.80517578125, -1.158203125,       -0.259765625,   0.32763671875,
+            -0.291015625,  -0.98291015625,     3.875,          4.48828125,
+            -1.984375,     6.2890625,          4.37109375,     -0.3671875,
+            0.43017578125, -0.048980712890625, 1.177734375,    -0.310791015625,
+            -0.3017578125, -0.36474609375,     0.305419921875, 2.80078125,
+            -0.830078125,  4.99609375,         -3.912109375,   -8.3046875
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'div float16 broadcast 4D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [-41.8125],
+          'descriptor': {shape: [1, 1, 1, 1], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            60.4375,     -86.9375,     -19.5,     -15.1484375, 13.453125,
+            45.4375,     61.09375,     70.75,     -31.28125,   56.09375,
+            39,          -3.275390625, 32.28125,  -3.67578125, 88.4375,
+            14.3671875,  13.9453125,   16.859375, 4.81640625,  44.15625,
+            -13.0859375, 44.5625,      -34.90625, -74.125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'div',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -0.69189453125, 0.48095703125,  2.14453125,      2.759765625,
+            -3.107421875,   -0.92041015625, -0.6845703125,   -0.5908203125,
+            1.3369140625,   -0.74560546875, -1.072265625,    12.765625,
+            -1.294921875,   11.375,         -0.472900390625, -2.91015625,
+            -2.998046875,   -2.48046875,    -8.6796875,      -0.94677734375,
+            3.1953125,      -0.9384765625,  1.1982421875,    0.56396484375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
   }
 ];
 
diff --git a/tests/wpt/tests/webnn/conformance_tests/inputs-with-special-names.https.any.js b/tests/wpt/tests/webnn/conformance_tests/inputs-with-special-names.https.any.js
new file mode 100644
index 00000000000..2921cf1fe5e
--- /dev/null
+++ b/tests/wpt/tests/webnn/conformance_tests/inputs-with-special-names.https.any.js
@@ -0,0 +1,74 @@
+// META: title=test input with special character names
+// META: global=window
+// META: variant=?cpu
+// META: variant=?gpu
+// META: variant=?npu
+// META: script=../resources/utils.js
+// META: timeout=long
+
+'use strict';
+
+// https://www.w3.org/TR/webnn/#api-mlgraphbuilder-input
+
+let mlContext;
+
+// Skip tests if WebNN is unimplemented.
+promise_setup(async () => {
+  assert_implements(navigator.ml, 'missing navigator.ml');
+  mlContext = await navigator.ml.createContext(contextOptions);
+});
+
+const specialNameArray = [
+  '12-L#!.☺',
+  '🤦🏼‍♂️124DS#!F',
+
+  // Escape Sequence
+  'hello\n\t\r\b\f\v\'\"\0\\webnn',
+
+  // Hexadecimal Escape Sequences
+  // '\x41'→ 'A'
+  '\x41\x41\x41',
+
+  // Unicode & Hexadecimal Characters
+  //   "\u00A9" → "©"
+  //   "\xA9" → "©"
+  //   "\u2665" → "♥"
+  //   "\u2026" → "…"
+  //   "\U0001F600" → 😀 (Grinning Face Emoji)
+  '\u00A9\xA9\u2665\u2026',
+  '\U0001F600'
+];
+
+specialNameArray.forEach((name) => {
+  promise_test(async () => {
+    const builder = new MLGraphBuilder(mlContext);
+    const inputOperand = builder.input(name, {dataType: 'float32', shape: [4]});
+    const outputOperand = builder.abs(inputOperand);
+
+    const [inputTensor, outputTensor, mlGraph] = await Promise.all([
+      mlContext.createTensor({
+        dataType: 'float32',
+        shape: [4],
+        readable: true,
+        writable: true,
+      }),
+      mlContext.createTensor({dataType: 'float32', shape: [4], readable: true}),
+      builder.build({'output': outputOperand})
+    ]);
+
+    const inputData = Float32Array.from([-2, -1, 1, 2]);
+    mlContext.writeTensor(inputTensor, inputData);
+
+    const inputs = {};
+    inputs[name] = inputTensor;
+
+    mlContext.dispatch(mlGraph, inputs, {'output': outputTensor});
+
+    // Wait for graph execution to complete.
+    await mlContext.readTensor(outputTensor);
+
+    assert_array_equals(
+        new Float32Array(await mlContext.readTensor(outputTensor)),
+        Float32Array.from([2, 1, 1, 2]));
+  }, `abs input with special character name '${name}'`);
+});
diff --git a/tests/wpt/tests/webnn/conformance_tests/max.https.any.js b/tests/wpt/tests/webnn/conformance_tests/max.https.any.js
index 9685572bcd7..2da14e1545a 100644
--- a/tests/wpt/tests/webnn/conformance_tests/max.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/max.https.any.js
@@ -522,6 +522,409 @@ const maxTests = [
         }
       }
     }
+  },
+
+  // float16 tests
+  {
+    'name': 'max float16 1D constant tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.734375, 88.125,     -12.796875, 11.8203125, 19.515625, -62.875,
+            50.78125,  -56.90625,  50.5625,    -96,        50.21875,  20.59375,
+            -60.6875,  -96.8125,   57.25,      -56.28125,  73.6875,   21.34375,
+            79.875,    -22.921875, 1.23046875, 65.6875,    99.875,    -62.3125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        },
+        'inputB': {
+          'data': [
+            -34.5,          85.75,   25.8125,     -91.375,    87,
+            0.177490234375, 74.875,  -4.16796875, -73.75,     55.375,
+            -58.6875,       -67.625, -89.8125,    -8.2734375, 97.625,
+            -48.96875,      95.375,  -97.375,     -59.90625,  97.125,
+            -40.21875,      -61.5,   33.375,      12.6953125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        }
+      },
+      'operators': [{
+        'name': 'max',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.734375,      88.125,   25.8125,     11.8203125, 87,
+            0.177490234375, 74.875,   -4.16796875, 50.5625,    55.375,
+            50.21875,       20.59375, -60.6875,    -8.2734375, 97.625,
+            -48.96875,      95.375,   21.34375,    79.875,     97.125,
+            1.23046875,     65.6875,  99.875,      12.6953125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'max float16 1D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.734375, 88.125,     -12.796875, 11.8203125, 19.515625, -62.875,
+            50.78125,  -56.90625,  50.5625,    -96,        50.21875,  20.59375,
+            -60.6875,  -96.8125,   57.25,      -56.28125,  73.6875,   21.34375,
+            79.875,    -22.921875, 1.23046875, 65.6875,    99.875,    -62.3125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -34.5,          85.75,   25.8125,     -91.375,    87,
+            0.177490234375, 74.875,  -4.16796875, -73.75,     55.375,
+            -58.6875,       -67.625, -89.8125,    -8.2734375, 97.625,
+            -48.96875,      95.375,  -97.375,     -59.90625,  97.125,
+            -40.21875,      -61.5,   33.375,      12.6953125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'max',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.734375,      88.125,   25.8125,     11.8203125, 87,
+            0.177490234375, 74.875,   -4.16796875, 50.5625,    55.375,
+            50.21875,       20.59375, -60.6875,    -8.2734375, 97.625,
+            -48.96875,      95.375,   21.34375,    79.875,     97.125,
+            1.23046875,     65.6875,  99.875,      12.6953125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'max float16 2D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.734375, 88.125,     -12.796875, 11.8203125, 19.515625, -62.875,
+            50.78125,  -56.90625,  50.5625,    -96,        50.21875,  20.59375,
+            -60.6875,  -96.8125,   57.25,      -56.28125,  73.6875,   21.34375,
+            79.875,    -22.921875, 1.23046875, 65.6875,    99.875,    -62.3125
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -34.5,          85.75,   25.8125,     -91.375,    87,
+            0.177490234375, 74.875,  -4.16796875, -73.75,     55.375,
+            -58.6875,       -67.625, -89.8125,    -8.2734375, 97.625,
+            -48.96875,      95.375,  -97.375,     -59.90625,  97.125,
+            -40.21875,      -61.5,   33.375,      12.6953125
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'max',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.734375,      88.125,   25.8125,     11.8203125, 87,
+            0.177490234375, 74.875,   -4.16796875, 50.5625,    55.375,
+            50.21875,       20.59375, -60.6875,    -8.2734375, 97.625,
+            -48.96875,      95.375,   21.34375,    79.875,     97.125,
+            1.23046875,     65.6875,  99.875,      12.6953125
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'max float16 3D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.734375, 88.125,     -12.796875, 11.8203125, 19.515625, -62.875,
+            50.78125,  -56.90625,  50.5625,    -96,        50.21875,  20.59375,
+            -60.6875,  -96.8125,   57.25,      -56.28125,  73.6875,   21.34375,
+            79.875,    -22.921875, 1.23046875, 65.6875,    99.875,    -62.3125
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -34.5,          85.75,   25.8125,     -91.375,    87,
+            0.177490234375, 74.875,  -4.16796875, -73.75,     55.375,
+            -58.6875,       -67.625, -89.8125,    -8.2734375, 97.625,
+            -48.96875,      95.375,  -97.375,     -59.90625,  97.125,
+            -40.21875,      -61.5,   33.375,      12.6953125
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'max',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.734375,      88.125,   25.8125,     11.8203125, 87,
+            0.177490234375, 74.875,   -4.16796875, 50.5625,    55.375,
+            50.21875,       20.59375, -60.6875,    -8.2734375, 97.625,
+            -48.96875,      95.375,   21.34375,    79.875,     97.125,
+            1.23046875,     65.6875,  99.875,      12.6953125
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'max float16 4D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.734375, 88.125,     -12.796875, 11.8203125, 19.515625, -62.875,
+            50.78125,  -56.90625,  50.5625,    -96,        50.21875,  20.59375,
+            -60.6875,  -96.8125,   57.25,      -56.28125,  73.6875,   21.34375,
+            79.875,    -22.921875, 1.23046875, 65.6875,    99.875,    -62.3125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -34.5,          85.75,   25.8125,     -91.375,    87,
+            0.177490234375, 74.875,  -4.16796875, -73.75,     55.375,
+            -58.6875,       -67.625, -89.8125,    -8.2734375, 97.625,
+            -48.96875,      95.375,  -97.375,     -59.90625,  97.125,
+            -40.21875,      -61.5,   33.375,      12.6953125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'max',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.734375,      88.125,   25.8125,     11.8203125, 87,
+            0.177490234375, 74.875,   -4.16796875, 50.5625,    55.375,
+            50.21875,       20.59375, -60.6875,    -8.2734375, 97.625,
+            -48.96875,      95.375,   21.34375,    79.875,     97.125,
+            1.23046875,     65.6875,  99.875,      12.6953125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'max float16 5D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.734375, 88.125,     -12.796875, 11.8203125, 19.515625, -62.875,
+            50.78125,  -56.90625,  50.5625,    -96,        50.21875,  20.59375,
+            -60.6875,  -96.8125,   57.25,      -56.28125,  73.6875,   21.34375,
+            79.875,    -22.921875, 1.23046875, 65.6875,    99.875,    -62.3125
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -34.5,          85.75,   25.8125,     -91.375,    87,
+            0.177490234375, 74.875,  -4.16796875, -73.75,     55.375,
+            -58.6875,       -67.625, -89.8125,    -8.2734375, 97.625,
+            -48.96875,      95.375,  -97.375,     -59.90625,  97.125,
+            -40.21875,      -61.5,   33.375,      12.6953125
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'max',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.734375,      88.125,   25.8125,     11.8203125, 87,
+            0.177490234375, 74.875,   -4.16796875, 50.5625,    55.375,
+            50.21875,       20.59375, -60.6875,    -8.2734375, 97.625,
+            -48.96875,      95.375,   21.34375,    79.875,     97.125,
+            1.23046875,     65.6875,  99.875,      12.6953125
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'max float16 broadcast 1D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA':
+            {'data': [48.25], 'descriptor': {shape: [1], dataType: 'float16'}},
+        'inputB': {
+          'data': [
+            17.734375, 88.125,     -12.796875, 11.8203125, 19.515625, -62.875,
+            50.78125,  -56.90625,  50.5625,    -96,        50.21875,  20.59375,
+            -60.6875,  -96.8125,   57.25,      -56.28125,  73.6875,   21.34375,
+            79.875,    -22.921875, 1.23046875, 65.6875,    99.875,    -62.3125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'max',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            48.25,   88.125, 48.25,    48.25, 48.25, 48.25,   50.78125, 48.25,
+            50.5625, 48.25,  50.21875, 48.25, 48.25, 48.25,   57.25,    48.25,
+            73.6875, 48.25,  79.875,   48.25, 48.25, 65.6875, 99.875,   48.25
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'max float16 broadcast 2D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.734375, 88.125,     -12.796875, 11.8203125, 19.515625, -62.875,
+            50.78125,  -56.90625,  50.5625,    -96,        50.21875,  20.59375,
+            -60.6875,  -96.8125,   57.25,      -56.28125,  73.6875,   21.34375,
+            79.875,    -22.921875, 1.23046875, 65.6875,    99.875,    -62.3125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data':
+              [49.53125, -61.5625, -6.56640625, 93.3125, 3.310546875, -98.3125],
+          'descriptor': {shape: [2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'max',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            49.53125, 88.125,     -6.56640625, 93.3125, 19.515625, -62.875,
+            50.78125, -56.90625,  50.5625,     93.3125, 50.21875,  20.59375,
+            49.53125, -61.5625,   57.25,       93.3125, 73.6875,   21.34375,
+            79.875,   -22.921875, 1.23046875,  93.3125, 99.875,    -62.3125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'max float16 broadcast 3D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.734375, 88.125,     -12.796875, 11.8203125, 19.515625, -62.875,
+            50.78125,  -56.90625,  50.5625,    -96,        50.21875,  20.59375,
+            -60.6875,  -96.8125,   57.25,      -56.28125,  73.6875,   21.34375,
+            79.875,    -22.921875, 1.23046875, 65.6875,    99.875,    -62.3125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [39.3125, 44.53125, 58.03125, 84.125],
+          'descriptor': {shape: [2, 2, 1], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'max',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            39.3125,  88.125,   39.3125,  44.53125, 44.53125, 44.53125,
+            58.03125, 58.03125, 58.03125, 84.125,   84.125,   84.125,
+            39.3125,  39.3125,  57.25,    44.53125, 73.6875,  44.53125,
+            79.875,   58.03125, 58.03125, 84.125,   99.875,   84.125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'max float16 broadcast 4D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [48.25],
+          'descriptor': {shape: [1, 1, 1, 1], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            17.734375, 88.125,     -12.796875, 11.8203125, 19.515625, -62.875,
+            50.78125,  -56.90625,  50.5625,    -96,        50.21875,  20.59375,
+            -60.6875,  -96.8125,   57.25,      -56.28125,  73.6875,   21.34375,
+            79.875,    -22.921875, 1.23046875, 65.6875,    99.875,    -62.3125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'max',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            48.25,   88.125, 48.25,    48.25, 48.25, 48.25,   50.78125, 48.25,
+            50.5625, 48.25,  50.21875, 48.25, 48.25, 48.25,   57.25,    48.25,
+            73.6875, 48.25,  79.875,   48.25, 48.25, 65.6875, 99.875,   48.25
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
   }
 ];
 
diff --git a/tests/wpt/tests/webnn/conformance_tests/min.https.any.js b/tests/wpt/tests/webnn/conformance_tests/min.https.any.js
index e843b003a0b..5e324e412bf 100644
--- a/tests/wpt/tests/webnn/conformance_tests/min.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/min.https.any.js
@@ -522,6 +522,419 @@ const minTests = [
         }
       }
     }
+  },
+
+  // float16 tests
+  {
+    'name': 'min float16 1D constant tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -36.0625,   -38.21875, 62.0625,    -16.609375,      66,
+            -17.765625, -76,       -69.5625,   53.59375,        -39.09375,
+            96.9375,    -40.40625, 74.125,     0.0328369140625, 38.8125,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        },
+        'inputB': {
+          'data': [
+            -40.09375, 86.25,      51.28125,   -57.65625, -97.5625, -28.875,
+            80.5,      46.65625,   62.8125,    49.8125,   -76.5,    84.625,
+            50.46875,  -18.015625, 5.19921875, -47.8125,  46.4375,  -71.25,
+            -69.875,   40.6875,    -18.703125, 20.15625,  41.9375,  23.484375
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        }
+      },
+      'operators': [{
+        'name': 'min',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -40.09375, -38.21875, 51.28125,   -57.65625,  -97.5625,
+            -28.875,   -76,       -69.5625,   53.59375,   -39.09375,
+            -76.5,     -40.40625, 50.46875,   -18.015625, 5.19921875,
+            -47.8125,  17.390625, -82.3125,   -80.5,      -31.390625,
+            -73.25,    -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'min float16 1D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -36.0625,   -38.21875, 62.0625,    -16.609375,      66,
+            -17.765625, -76,       -69.5625,   53.59375,        -39.09375,
+            96.9375,    -40.40625, 74.125,     0.0328369140625, 38.8125,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -40.09375, 86.25,      51.28125,   -57.65625, -97.5625, -28.875,
+            80.5,      46.65625,   62.8125,    49.8125,   -76.5,    84.625,
+            50.46875,  -18.015625, 5.19921875, -47.8125,  46.4375,  -71.25,
+            -69.875,   40.6875,    -18.703125, 20.15625,  41.9375,  23.484375
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'min',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -40.09375, -38.21875, 51.28125,   -57.65625,  -97.5625,
+            -28.875,   -76,       -69.5625,   53.59375,   -39.09375,
+            -76.5,     -40.40625, 50.46875,   -18.015625, 5.19921875,
+            -47.8125,  17.390625, -82.3125,   -80.5,      -31.390625,
+            -73.25,    -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'min float16 2D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -36.0625,   -38.21875, 62.0625,    -16.609375,      66,
+            -17.765625, -76,       -69.5625,   53.59375,        -39.09375,
+            96.9375,    -40.40625, 74.125,     0.0328369140625, 38.8125,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -40.09375, 86.25,      51.28125,   -57.65625, -97.5625, -28.875,
+            80.5,      46.65625,   62.8125,    49.8125,   -76.5,    84.625,
+            50.46875,  -18.015625, 5.19921875, -47.8125,  46.4375,  -71.25,
+            -69.875,   40.6875,    -18.703125, 20.15625,  41.9375,  23.484375
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'min',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -40.09375, -38.21875, 51.28125,   -57.65625,  -97.5625,
+            -28.875,   -76,       -69.5625,   53.59375,   -39.09375,
+            -76.5,     -40.40625, 50.46875,   -18.015625, 5.19921875,
+            -47.8125,  17.390625, -82.3125,   -80.5,      -31.390625,
+            -73.25,    -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'min float16 3D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -36.0625,   -38.21875, 62.0625,    -16.609375,      66,
+            -17.765625, -76,       -69.5625,   53.59375,        -39.09375,
+            96.9375,    -40.40625, 74.125,     0.0328369140625, 38.8125,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -40.09375, 86.25,      51.28125,   -57.65625, -97.5625, -28.875,
+            80.5,      46.65625,   62.8125,    49.8125,   -76.5,    84.625,
+            50.46875,  -18.015625, 5.19921875, -47.8125,  46.4375,  -71.25,
+            -69.875,   40.6875,    -18.703125, 20.15625,  41.9375,  23.484375
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'min',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -40.09375, -38.21875, 51.28125,   -57.65625,  -97.5625,
+            -28.875,   -76,       -69.5625,   53.59375,   -39.09375,
+            -76.5,     -40.40625, 50.46875,   -18.015625, 5.19921875,
+            -47.8125,  17.390625, -82.3125,   -80.5,      -31.390625,
+            -73.25,    -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'min float16 4D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -36.0625,   -38.21875, 62.0625,    -16.609375,      66,
+            -17.765625, -76,       -69.5625,   53.59375,        -39.09375,
+            96.9375,    -40.40625, 74.125,     0.0328369140625, 38.8125,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -40.09375, 86.25,      51.28125,   -57.65625, -97.5625, -28.875,
+            80.5,      46.65625,   62.8125,    49.8125,   -76.5,    84.625,
+            50.46875,  -18.015625, 5.19921875, -47.8125,  46.4375,  -71.25,
+            -69.875,   40.6875,    -18.703125, 20.15625,  41.9375,  23.484375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'min',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -40.09375, -38.21875, 51.28125,   -57.65625,  -97.5625,
+            -28.875,   -76,       -69.5625,   53.59375,   -39.09375,
+            -76.5,     -40.40625, 50.46875,   -18.015625, 5.19921875,
+            -47.8125,  17.390625, -82.3125,   -80.5,      -31.390625,
+            -73.25,    -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'min float16 5D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -36.0625,   -38.21875, 62.0625,    -16.609375,      66,
+            -17.765625, -76,       -69.5625,   53.59375,        -39.09375,
+            96.9375,    -40.40625, 74.125,     0.0328369140625, 38.8125,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -40.09375, 86.25,      51.28125,   -57.65625, -97.5625, -28.875,
+            80.5,      46.65625,   62.8125,    49.8125,   -76.5,    84.625,
+            50.46875,  -18.015625, 5.19921875, -47.8125,  46.4375,  -71.25,
+            -69.875,   40.6875,    -18.703125, 20.15625,  41.9375,  23.484375
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'min',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -40.09375, -38.21875, 51.28125,   -57.65625,  -97.5625,
+            -28.875,   -76,       -69.5625,   53.59375,   -39.09375,
+            -76.5,     -40.40625, 50.46875,   -18.015625, 5.19921875,
+            -47.8125,  17.390625, -82.3125,   -80.5,      -31.390625,
+            -73.25,    -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'min float16 broadcast 1D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [34.4375],
+          'descriptor': {shape: [1], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -36.0625,   -38.21875, 62.0625,    -16.609375,      66,
+            -17.765625, -76,       -69.5625,   53.59375,        -39.09375,
+            96.9375,    -40.40625, 74.125,     0.0328369140625, 38.8125,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'min',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -36.0625,   -38.21875, 34.4375,    -16.609375,      34.4375,
+            -17.765625, -76,       -69.5625,   34.4375,         -39.09375,
+            34.4375,    -40.40625, 34.4375,    0.0328369140625, 34.4375,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'min float16 broadcast 2D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -36.0625,   -38.21875, 62.0625,    -16.609375,      66,
+            -17.765625, -76,       -69.5625,   53.59375,        -39.09375,
+            96.9375,    -40.40625, 74.125,     0.0328369140625, 38.8125,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [-19.078125, -78.25, -13.4375, -93, -72.25, 63.15625],
+          'descriptor': {shape: [2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'min',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -36.0625,   -78.25, -13.4375, -93, -72.25, -17.765625,
+            -76,        -78.25, -13.4375, -93, -72.25, -40.40625,
+            -19.078125, -78.25, -13.4375, -93, -72.25, -82.3125,
+            -80.5,      -78.25, -73.25,   -93, -72.25, 4.9453125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'min float16 broadcast 3D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            -36.0625,   -38.21875, 62.0625,    -16.609375,      66,
+            -17.765625, -76,       -69.5625,   53.59375,        -39.09375,
+            96.9375,    -40.40625, 74.125,     0.0328369140625, 38.8125,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [23.234375, 84.625, -83.3125, -22.828125],
+          'descriptor': {shape: [2, 2, 1], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'min',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -36.0625,   -38.21875, 23.234375,  -16.609375,      66,
+            -17.765625, -83.3125,  -83.3125,   -83.3125,        -39.09375,
+            -22.828125, -40.40625, 23.234375,  0.0328369140625, 23.234375,
+            -17.71875,  17.390625, -82.3125,   -83.3125,        -83.3125,
+            -83.3125,   -33.75,    -22.828125, -22.828125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'min float16 broadcast 4D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [34.4375],
+          'descriptor': {shape: [1, 1, 1, 1], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -36.0625,   -38.21875, 62.0625,    -16.609375,      66,
+            -17.765625, -76,       -69.5625,   53.59375,        -39.09375,
+            96.9375,    -40.40625, 74.125,     0.0328369140625, 38.8125,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'min',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -36.0625,   -38.21875, 34.4375,    -16.609375,      34.4375,
+            -17.765625, -76,       -69.5625,   34.4375,         -39.09375,
+            34.4375,    -40.40625, 34.4375,    0.0328369140625, 34.4375,
+            -17.71875,  17.390625, -82.3125,   -80.5,           -31.390625,
+            -73.25,     -33.75,    -21.703125, 4.9453125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
   }
 ];
 
diff --git a/tests/wpt/tests/webnn/conformance_tests/mul.https.any.js b/tests/wpt/tests/webnn/conformance_tests/mul.https.any.js
index e64a70d099a..277d3e2fa0d 100644
--- a/tests/wpt/tests/webnn/conformance_tests/mul.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/mul.https.any.js
@@ -526,6 +526,399 @@ const mulTests = [
         }
       }
     }
+  },
+
+  // float16 tests
+  {
+    'name': 'mul float16 1D constant tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            49.125,            11.90625,   -21.109375,  70.75,    -94.5,
+            -93.8125,          11.1796875, -32.8125,    83.3125,  91.125,
+            -0.11236572265625, 15.3984375, -13.4609375, -50.625,  -31.171875,
+            -6.6171875,        21.734375,  22.03125,    -84,      -94.0625,
+            58.8125,           -63.0625,   3.30859375,  9.8828125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        },
+        'inputB': {
+          'data': [
+            74.9375,   -34.53125, -33.3125, 53.90625,  -83.6875,    19.78125,
+            36.28125,  -34.3125,  49.09375, -54.53125, 70.75,       -55.1875,
+            -93.9375,  60.09375,  -92.75,   87.625,    -8.8828125,  71.8125,
+            -26.15625, -18.9375,  34.65625, -60.96875, -11.1171875, 77.5
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        }
+      },
+      'operators': [{
+        'name': 'mul',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            3682, -411.25, 703,         3814, 7908, -1856, 405.5,     1126,
+            4090, -4968,   -7.94921875, -850, 1264, -3042, 2892,      -580,
+            -193, 1582,    2198,        1781, 2038, 3844,  -36.78125, 766
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'mul float16 1D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            49.125,            11.90625,   -21.109375,  70.75,    -94.5,
+            -93.8125,          11.1796875, -32.8125,    83.3125,  91.125,
+            -0.11236572265625, 15.3984375, -13.4609375, -50.625,  -31.171875,
+            -6.6171875,        21.734375,  22.03125,    -84,      -94.0625,
+            58.8125,           -63.0625,   3.30859375,  9.8828125
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            74.9375,   -34.53125, -33.3125, 53.90625,  -83.6875,    19.78125,
+            36.28125,  -34.3125,  49.09375, -54.53125, 70.75,       -55.1875,
+            -93.9375,  60.09375,  -92.75,   87.625,    -8.8828125,  71.8125,
+            -26.15625, -18.9375,  34.65625, -60.96875, -11.1171875, 77.5
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'mul',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            3682, -411.25, 703,         3814, 7908, -1856, 405.5,     1126,
+            4090, -4968,   -7.94921875, -850, 1264, -3042, 2892,      -580,
+            -193, 1582,    2198,        1781, 2038, 3844,  -36.78125, 766
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'mul float16 2D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            49.125,            11.90625,   -21.109375,  70.75,    -94.5,
+            -93.8125,          11.1796875, -32.8125,    83.3125,  91.125,
+            -0.11236572265625, 15.3984375, -13.4609375, -50.625,  -31.171875,
+            -6.6171875,        21.734375,  22.03125,    -84,      -94.0625,
+            58.8125,           -63.0625,   3.30859375,  9.8828125
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            74.9375,   -34.53125, -33.3125, 53.90625,  -83.6875,    19.78125,
+            36.28125,  -34.3125,  49.09375, -54.53125, 70.75,       -55.1875,
+            -93.9375,  60.09375,  -92.75,   87.625,    -8.8828125,  71.8125,
+            -26.15625, -18.9375,  34.65625, -60.96875, -11.1171875, 77.5
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'mul',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            3682, -411.25, 703,         3814, 7908, -1856, 405.5,     1126,
+            4090, -4968,   -7.94921875, -850, 1264, -3042, 2892,      -580,
+            -193, 1582,    2198,        1781, 2038, 3844,  -36.78125, 766
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'mul float16 3D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            49.125,            11.90625,   -21.109375,  70.75,    -94.5,
+            -93.8125,          11.1796875, -32.8125,    83.3125,  91.125,
+            -0.11236572265625, 15.3984375, -13.4609375, -50.625,  -31.171875,
+            -6.6171875,        21.734375,  22.03125,    -84,      -94.0625,
+            58.8125,           -63.0625,   3.30859375,  9.8828125
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            74.9375,   -34.53125, -33.3125, 53.90625,  -83.6875,    19.78125,
+            36.28125,  -34.3125,  49.09375, -54.53125, 70.75,       -55.1875,
+            -93.9375,  60.09375,  -92.75,   87.625,    -8.8828125,  71.8125,
+            -26.15625, -18.9375,  34.65625, -60.96875, -11.1171875, 77.5
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'mul',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            3682, -411.25, 703,         3814, 7908, -1856, 405.5,     1126,
+            4090, -4968,   -7.94921875, -850, 1264, -3042, 2892,      -580,
+            -193, 1582,    2198,        1781, 2038, 3844,  -36.78125, 766
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'mul float16 4D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            49.125,            11.90625,   -21.109375,  70.75,    -94.5,
+            -93.8125,          11.1796875, -32.8125,    83.3125,  91.125,
+            -0.11236572265625, 15.3984375, -13.4609375, -50.625,  -31.171875,
+            -6.6171875,        21.734375,  22.03125,    -84,      -94.0625,
+            58.8125,           -63.0625,   3.30859375,  9.8828125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            74.9375,   -34.53125, -33.3125, 53.90625,  -83.6875,    19.78125,
+            36.28125,  -34.3125,  49.09375, -54.53125, 70.75,       -55.1875,
+            -93.9375,  60.09375,  -92.75,   87.625,    -8.8828125,  71.8125,
+            -26.15625, -18.9375,  34.65625, -60.96875, -11.1171875, 77.5
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'mul',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            3682, -411.25, 703,         3814, 7908, -1856, 405.5,     1126,
+            4090, -4968,   -7.94921875, -850, 1264, -3042, 2892,      -580,
+            -193, 1582,    2198,        1781, 2038, 3844,  -36.78125, 766
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'mul float16 5D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            49.125,            11.90625,   -21.109375,  70.75,    -94.5,
+            -93.8125,          11.1796875, -32.8125,    83.3125,  91.125,
+            -0.11236572265625, 15.3984375, -13.4609375, -50.625,  -31.171875,
+            -6.6171875,        21.734375,  22.03125,    -84,      -94.0625,
+            58.8125,           -63.0625,   3.30859375,  9.8828125
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            74.9375,   -34.53125, -33.3125, 53.90625,  -83.6875,    19.78125,
+            36.28125,  -34.3125,  49.09375, -54.53125, 70.75,       -55.1875,
+            -93.9375,  60.09375,  -92.75,   87.625,    -8.8828125,  71.8125,
+            -26.15625, -18.9375,  34.65625, -60.96875, -11.1171875, 77.5
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'mul',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            3682, -411.25, 703,         3814, 7908, -1856, 405.5,     1126,
+            4090, -4968,   -7.94921875, -850, 1264, -3042, 2892,      -580,
+            -193, 1582,    2198,        1781, 2038, 3844,  -36.78125, 766
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'mul float16 broadcast 1D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA':
+            {'data': [67.5], 'descriptor': {shape: [1], dataType: 'float16'}},
+        'inputB': {
+          'data': [
+            49.125,            11.90625,   -21.109375,  70.75,    -94.5,
+            -93.8125,          11.1796875, -32.8125,    83.3125,  91.125,
+            -0.11236572265625, 15.3984375, -13.4609375, -50.625,  -31.171875,
+            -6.6171875,        21.734375,  22.03125,    -84,      -94.0625,
+            58.8125,           -63.0625,   3.30859375,  9.8828125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'mul',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            3316, 803.5, -1425,      4776,  -6380,  -6332, 754.5,   -2214,
+            5624, 6152,  -7.5859375, 1039,  -908.5, -3418, -2104,   -446.75,
+            1467, 1487,  -5672,      -6348, 3970,   -4256, 223.375, 667
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'mul float16 broadcast 2D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            49.125,            11.90625,   -21.109375,  70.75,    -94.5,
+            -93.8125,          11.1796875, -32.8125,    83.3125,  91.125,
+            -0.11236572265625, 15.3984375, -13.4609375, -50.625,  -31.171875,
+            -6.6171875,        21.734375,  22.03125,    -84,      -94.0625,
+            58.8125,           -63.0625,   3.30859375,  9.8828125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [-97.3125, -81.6875, -63.84375, -25.1875, 94.625, -20.375],
+          'descriptor': {shape: [2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'mul',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -4780, -972.5, 1348,        -1782,   -8944, 1911, -1088, 2680,
+            -5320, -2296,  -10.6328125, -313.75, 1310,  4136, 1990,  166.625,
+            2056,  -449,   8176,        7684,    -3754, 1588, 313,   -201.375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'mul float16 broadcast 3D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            49.125,            11.90625,   -21.109375,  70.75,    -94.5,
+            -93.8125,          11.1796875, -32.8125,    83.3125,  91.125,
+            -0.11236572265625, 15.3984375, -13.4609375, -50.625,  -31.171875,
+            -6.6171875,        21.734375,  22.03125,    -84,      -94.0625,
+            58.8125,           -63.0625,   3.30859375,  9.8828125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [8.6953125, 48.375, 97.75, 62.21875],
+          'descriptor': {shape: [2, 2, 1], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'mul',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            427.25,    103.5,   -183.5, 3422,  -4572,      -4540,
+            1093,      -3208,   8144,   5668,  -6.9921875, 958,
+            -117.0625, -440.25, -271,   -320,  1051,       1066,
+            -8208,     -9192,   5748,   -3924, 205.875,    615
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'mul float16 broadcast 4D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [67.5],
+          'descriptor': {shape: [1, 1, 1, 1], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            49.125,            11.90625,   -21.109375,  70.75,    -94.5,
+            -93.8125,          11.1796875, -32.8125,    83.3125,  91.125,
+            -0.11236572265625, 15.3984375, -13.4609375, -50.625,  -31.171875,
+            -6.6171875,        21.734375,  22.03125,    -84,      -94.0625,
+            58.8125,           -63.0625,   3.30859375,  9.8828125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'mul',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            3316, 803.5, -1425,      4776,  -6380,  -6332, 754.5,   -2214,
+            5624, 6152,  -7.5859375, 1039,  -908.5, -3418, -2104,   -446.75,
+            1467, 1487,  -5672,      -6348, 3970,   -4256, 223.375, 667
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
   }
 ];
 
diff --git a/tests/wpt/tests/webnn/conformance_tests/pow.https.any.js b/tests/wpt/tests/webnn/conformance_tests/pow.https.any.js
index ae3524f3376..f51feca4eac 100644
--- a/tests/wpt/tests/webnn/conformance_tests/pow.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/pow.https.any.js
@@ -57,30 +57,18 @@ const powTests = [
       'expectedOutputs': {
         'output': {
           'data': [
-            17.846010208129883,
-            6.316321332633379e-8,
-            -1.0973203501407625e-7,
-            21800822,
-            0.0033234376460313797,
-            11.862250328063965,
-            80273.3359375,
-            0.00005692423656000756,
-            0.12908191978931427,
-            -0.0000020299064544815337,
-            0.005799346603453159,
-            3880.540283203125,
-            2.7385585465999895e-10,
-            8.223764069725803e-8,
-            0.06714485585689545,
-            -0.008288968354463577,
-            -4.1750155416186985e-11,
-            1210.5478515625,
-            3.8231124932508465e-8,
-            -1667.201416015625,
-            -0.16149713099002838,
-            -0.00015812950732652098,
-            485079424,
-            3.584487018315485e-8
+            17.846010208129883,      6.316321332633379e-8,
+            -1.0973203501407625e-7,  21800822,
+            0.0033234376460313797,   11.862250328063965,
+            80273.3359375,           0.00005692423656000756,
+            0.12908191978931427,     -0.0000020299064544815337,
+            0.005799346603453159,    3880.540283203125,
+            2.7385585465999895e-10,  8.223764069725803e-8,
+            0.06714485585689545,     -0.008288968354463577,
+            -4.1750155416186985e-11, 1210.5478515625,
+            3.8231124932508465e-8,   -1667.201416015625,
+            -0.16149713099002838,    -0.00015812950732652098,
+            485079424,               3.584487018315485e-8
           ],
           'descriptor': {shape: [24], dataType: 'float32'}
         }
@@ -120,30 +108,18 @@ const powTests = [
       'expectedOutputs': {
         'output': {
           'data': [
-            17.846010208129883,
-            6.316321332633379e-8,
-            -1.0973203501407625e-7,
-            21800822,
-            0.0033234376460313797,
-            11.862250328063965,
-            80273.3359375,
-            0.00005692423656000756,
-            0.12908191978931427,
-            -0.0000020299064544815337,
-            0.005799346603453159,
-            3880.540283203125,
-            2.7385585465999895e-10,
-            8.223764069725803e-8,
-            0.06714485585689545,
-            -0.008288968354463577,
-            -4.1750155416186985e-11,
-            1210.5478515625,
-            3.8231124932508465e-8,
-            -1667.201416015625,
-            -0.16149713099002838,
-            -0.00015812950732652098,
-            485079424,
-            3.584487018315485e-8
+            17.846010208129883,      6.316321332633379e-8,
+            -1.0973203501407625e-7,  21800822,
+            0.0033234376460313797,   11.862250328063965,
+            80273.3359375,           0.00005692423656000756,
+            0.12908191978931427,     -0.0000020299064544815337,
+            0.005799346603453159,    3880.540283203125,
+            2.7385585465999895e-10,  8.223764069725803e-8,
+            0.06714485585689545,     -0.008288968354463577,
+            -4.1750155416186985e-11, 1210.5478515625,
+            3.8231124932508465e-8,   -1667.201416015625,
+            -0.16149713099002838,    -0.00015812950732652098,
+            485079424,               3.584487018315485e-8
           ],
           'descriptor': {shape: [24], dataType: 'float32'}
         }
@@ -183,30 +159,18 @@ const powTests = [
       'expectedOutputs': {
         'output': {
           'data': [
-            17.846010208129883,
-            6.316321332633379e-8,
-            -1.0973203501407625e-7,
-            21800822,
-            0.0033234376460313797,
-            11.862250328063965,
-            80273.3359375,
-            0.00005692423656000756,
-            0.12908191978931427,
-            -0.0000020299064544815337,
-            0.005799346603453159,
-            3880.540283203125,
-            2.7385585465999895e-10,
-            8.223764069725803e-8,
-            0.06714485585689545,
-            -0.008288968354463577,
-            -4.1750155416186985e-11,
-            1210.5478515625,
-            3.8231124932508465e-8,
-            -1667.201416015625,
-            -0.16149713099002838,
-            -0.00015812950732652098,
-            485079424,
-            3.584487018315485e-8
+            17.846010208129883,      6.316321332633379e-8,
+            -1.0973203501407625e-7,  21800822,
+            0.0033234376460313797,   11.862250328063965,
+            80273.3359375,           0.00005692423656000756,
+            0.12908191978931427,     -0.0000020299064544815337,
+            0.005799346603453159,    3880.540283203125,
+            2.7385585465999895e-10,  8.223764069725803e-8,
+            0.06714485585689545,     -0.008288968354463577,
+            -4.1750155416186985e-11, 1210.5478515625,
+            3.8231124932508465e-8,   -1667.201416015625,
+            -0.16149713099002838,    -0.00015812950732652098,
+            485079424,               3.584487018315485e-8
           ],
           'descriptor': {shape: [4, 6], dataType: 'float32'}
         }
@@ -246,30 +210,18 @@ const powTests = [
       'expectedOutputs': {
         'output': {
           'data': [
-            17.846010208129883,
-            6.316321332633379e-8,
-            -1.0973203501407625e-7,
-            21800822,
-            0.0033234376460313797,
-            11.862250328063965,
-            80273.3359375,
-            0.00005692423656000756,
-            0.12908191978931427,
-            -0.0000020299064544815337,
-            0.005799346603453159,
-            3880.540283203125,
-            2.7385585465999895e-10,
-            8.223764069725803e-8,
-            0.06714485585689545,
-            -0.008288968354463577,
-            -4.1750155416186985e-11,
-            1210.5478515625,
-            3.8231124932508465e-8,
-            -1667.201416015625,
-            -0.16149713099002838,
-            -0.00015812950732652098,
-            485079424,
-            3.584487018315485e-8
+            17.846010208129883,      6.316321332633379e-8,
+            -1.0973203501407625e-7,  21800822,
+            0.0033234376460313797,   11.862250328063965,
+            80273.3359375,           0.00005692423656000756,
+            0.12908191978931427,     -0.0000020299064544815337,
+            0.005799346603453159,    3880.540283203125,
+            2.7385585465999895e-10,  8.223764069725803e-8,
+            0.06714485585689545,     -0.008288968354463577,
+            -4.1750155416186985e-11, 1210.5478515625,
+            3.8231124932508465e-8,   -1667.201416015625,
+            -0.16149713099002838,    -0.00015812950732652098,
+            485079424,               3.584487018315485e-8
           ],
           'descriptor': {shape: [2, 3, 4], dataType: 'float32'}
         }
@@ -309,30 +261,18 @@ const powTests = [
       'expectedOutputs': {
         'output': {
           'data': [
-            17.846010208129883,
-            6.316321332633379e-8,
-            -1.0973203501407625e-7,
-            21800822,
-            0.0033234376460313797,
-            11.862250328063965,
-            80273.3359375,
-            0.00005692423656000756,
-            0.12908191978931427,
-            -0.0000020299064544815337,
-            0.005799346603453159,
-            3880.540283203125,
-            2.7385585465999895e-10,
-            8.223764069725803e-8,
-            0.06714485585689545,
-            -0.008288968354463577,
-            -4.1750155416186985e-11,
-            1210.5478515625,
-            3.8231124932508465e-8,
-            -1667.201416015625,
-            -0.16149713099002838,
-            -0.00015812950732652098,
-            485079424,
-            3.584487018315485e-8
+            17.846010208129883,      6.316321332633379e-8,
+            -1.0973203501407625e-7,  21800822,
+            0.0033234376460313797,   11.862250328063965,
+            80273.3359375,           0.00005692423656000756,
+            0.12908191978931427,     -0.0000020299064544815337,
+            0.005799346603453159,    3880.540283203125,
+            2.7385585465999895e-10,  8.223764069725803e-8,
+            0.06714485585689545,     -0.008288968354463577,
+            -4.1750155416186985e-11, 1210.5478515625,
+            3.8231124932508465e-8,   -1667.201416015625,
+            -0.16149713099002838,    -0.00015812950732652098,
+            485079424,               3.584487018315485e-8
           ],
           'descriptor': {shape: [2, 2, 2, 3], dataType: 'float32'}
         }
@@ -372,30 +312,18 @@ const powTests = [
       'expectedOutputs': {
         'output': {
           'data': [
-            17.846010208129883,
-            6.316321332633379e-8,
-            -1.0973203501407625e-7,
-            21800822,
-            0.0033234376460313797,
-            11.862250328063965,
-            80273.3359375,
-            0.00005692423656000756,
-            0.12908191978931427,
-            -0.0000020299064544815337,
-            0.005799346603453159,
-            3880.540283203125,
-            2.7385585465999895e-10,
-            8.223764069725803e-8,
-            0.06714485585689545,
-            -0.008288968354463577,
-            -4.1750155416186985e-11,
-            1210.5478515625,
-            3.8231124932508465e-8,
-            -1667.201416015625,
-            -0.16149713099002838,
-            -0.00015812950732652098,
-            485079424,
-            3.584487018315485e-8
+            17.846010208129883,      6.316321332633379e-8,
+            -1.0973203501407625e-7,  21800822,
+            0.0033234376460313797,   11.862250328063965,
+            80273.3359375,           0.00005692423656000756,
+            0.12908191978931427,     -0.0000020299064544815337,
+            0.005799346603453159,    3880.540283203125,
+            2.7385585465999895e-10,  8.223764069725803e-8,
+            0.06714485585689545,     -0.008288968354463577,
+            -4.1750155416186985e-11, 1210.5478515625,
+            3.8231124932508465e-8,   -1667.201416015625,
+            -0.16149713099002838,    -0.00015812950732652098,
+            485079424,               3.584487018315485e-8
           ],
           'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float32'}
         }
@@ -565,35 +493,491 @@ const powTests = [
       'expectedOutputs': {
         'output': {
           'data': [
-            5.524516950572433e-7,
-            -999109.625,
-            -0.000010685862434911542,
-            3.284485530774539e-11,
-            4.0545030440680696e-13,
-            1.81271334748212e-11,
-            -108463955968,
-            6610.47265625,
-            -10025.4921875,
-            1.4756086841316574e-7,
-            1.9504606996179064e-7,
-            142.34274291992188,
-            -0.0000010554830396358739,
-            0.000008696333679836243,
-            0.0000013647832020069472,
-            1.1525726506533829e-7,
-            2.9335795945217846e-12,
-            0.000007272717084561009,
-            133774827520,
-            -13885.326171875,
-            -26.625843048095703,
-            0.000027467271138448268,
-            3.5893645389251105e-8,
-            3.584487018315485e-8
+            5.524516950572433e-7,      -999109.625,
+            -0.000010685862434911542,  3.284485530774539e-11,
+            4.0545030440680696e-13,    1.81271334748212e-11,
+            -108463955968,             6610.47265625,
+            -10025.4921875,            1.4756086841316574e-7,
+            1.9504606996179064e-7,     142.34274291992188,
+            -0.0000010554830396358739, 0.000008696333679836243,
+            0.0000013647832020069472,  1.1525726506533829e-7,
+            2.9335795945217846e-12,    0.000007272717084561009,
+            133774827520,              -13885.326171875,
+            -26.625843048095703,       0.000027467271138448268,
+            3.5893645389251105e-8,     3.584487018315485e-8
           ],
           'descriptor': {shape: [2, 2, 2, 3], dataType: 'float32'}
         }
       }
     }
+  },
+
+  // float16 tests
+  {
+    'name':
+        'pow float16 constant 1D base tensor and 1D integer exponent tensor',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.84375,      -0.0631103515625, -9.8671875, 11.1796875,
+            -17.34375,     11.859375,        -16.828125, 2.658203125,
+            -2.783203125,  -13.7578125,      13.1328125, -0.437744140625,
+            -15.6796875,   10.28125,         14.890625,  -4.94140625,
+            -14.234375,    3.263671875,      17.234375,  -2.88671875,
+            -1.4404296875, -5.7578125,       17.40625,   17.421875
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        },
+        'inputB': {
+          'data': [
+            1,  3,  -7, 2,  -2, 1, 2,  -10, -2, -5, -2, -10,
+            -8, -7, -1, -3, -9, 2, -6, 3,   -5, -5, 2,  -6
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        }
+      },
+      'operators': [{
+        'name': 'pow',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.84375,               -0.0002512931823730469,
+            -1.1920928955078125e-7, 125,
+            0.0033245086669921875,  11.859375,
+            283.25,                 0.000056743621826171875,
+            0.129150390625,         -0.0000020265579223632812,
+            0.00579833984375,       3870,
+            0,                      5.960464477539063e-8,
+            0.067138671875,         -0.0082855224609375,
+            0,                      10.6484375,
+            5.960464477539063e-8,   -24.0625,
+            -0.1612548828125,       -0.00015807151794433594,
+            303,                    5.960464477539063e-8
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'pow float16 1D base tensor and 1D integer exponent tensor',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.84375,      -0.0631103515625, -9.8671875, 11.1796875,
+            -17.34375,     11.859375,        -16.828125, 2.658203125,
+            -2.783203125,  -13.7578125,      13.1328125, -0.437744140625,
+            -15.6796875,   10.28125,         14.890625,  -4.94140625,
+            -14.234375,    3.263671875,      17.234375,  -2.88671875,
+            -1.4404296875, -5.7578125,       17.40625,   17.421875
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            1,  3,  -7, 2,  -2, 1, 2,  -10, -2, -5, -2, -10,
+            -8, -7, -1, -3, -9, 2, -6, 3,   -5, -5, 2,  -6
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'pow',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.84375,               -0.0002512931823730469,
+            -1.1920928955078125e-7, 125,
+            0.0033245086669921875,  11.859375,
+            283.25,                 0.000056743621826171875,
+            0.129150390625,         -0.0000020265579223632812,
+            0.00579833984375,       3870,
+            0,                      5.960464477539063e-8,
+            0.067138671875,         -0.0082855224609375,
+            0,                      10.6484375,
+            5.960464477539063e-8,   -24.0625,
+            -0.1612548828125,       -0.00015807151794433594,
+            303,                    5.960464477539063e-8
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'pow float16 2D base tensor and 2D integer exponent tensor',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.84375,      -0.0631103515625, -9.8671875, 11.1796875,
+            -17.34375,     11.859375,        -16.828125, 2.658203125,
+            -2.783203125,  -13.7578125,      13.1328125, -0.437744140625,
+            -15.6796875,   10.28125,         14.890625,  -4.94140625,
+            -14.234375,    3.263671875,      17.234375,  -2.88671875,
+            -1.4404296875, -5.7578125,       17.40625,   17.421875
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            1,  3,  -7, 2,  -2, 1, 2,  -10, -2, -5, -2, -10,
+            -8, -7, -1, -3, -9, 2, -6, 3,   -5, -5, 2,  -6
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'pow',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.84375,               -0.0002512931823730469,
+            -1.1920928955078125e-7, 125,
+            0.0033245086669921875,  11.859375,
+            283.25,                 0.000056743621826171875,
+            0.129150390625,         -0.0000020265579223632812,
+            0.00579833984375,       3870,
+            0,                      5.960464477539063e-8,
+            0.067138671875,         -0.0082855224609375,
+            0,                      10.6484375,
+            5.960464477539063e-8,   -24.0625,
+            -0.1612548828125,       -0.00015807151794433594,
+            303,                    5.960464477539063e-8
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'pow float16 3D base tensor and 3D integer exponent tensor',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.84375,      -0.0631103515625, -9.8671875, 11.1796875,
+            -17.34375,     11.859375,        -16.828125, 2.658203125,
+            -2.783203125,  -13.7578125,      13.1328125, -0.437744140625,
+            -15.6796875,   10.28125,         14.890625,  -4.94140625,
+            -14.234375,    3.263671875,      17.234375,  -2.88671875,
+            -1.4404296875, -5.7578125,       17.40625,   17.421875
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            1,  3,  -7, 2,  -2, 1, 2,  -10, -2, -5, -2, -10,
+            -8, -7, -1, -3, -9, 2, -6, 3,   -5, -5, 2,  -6
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'pow',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.84375,               -0.0002512931823730469,
+            -1.1920928955078125e-7, 125,
+            0.0033245086669921875,  11.859375,
+            283.25,                 0.000056743621826171875,
+            0.129150390625,         -0.0000020265579223632812,
+            0.00579833984375,       3870,
+            0,                      5.960464477539063e-8,
+            0.067138671875,         -0.0082855224609375,
+            0,                      10.6484375,
+            5.960464477539063e-8,   -24.0625,
+            -0.1612548828125,       -0.00015807151794433594,
+            303,                    5.960464477539063e-8
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'pow float16 4D base tensor and 4D integer exponent tensor',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.84375,      -0.0631103515625, -9.8671875, 11.1796875,
+            -17.34375,     11.859375,        -16.828125, 2.658203125,
+            -2.783203125,  -13.7578125,      13.1328125, -0.437744140625,
+            -15.6796875,   10.28125,         14.890625,  -4.94140625,
+            -14.234375,    3.263671875,      17.234375,  -2.88671875,
+            -1.4404296875, -5.7578125,       17.40625,   17.421875
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            1,  3,  -7, 2,  -2, 1, 2,  -10, -2, -5, -2, -10,
+            -8, -7, -1, -3, -9, 2, -6, 3,   -5, -5, 2,  -6
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'pow',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.84375,               -0.0002512931823730469,
+            -1.1920928955078125e-7, 125,
+            0.0033245086669921875,  11.859375,
+            283.25,                 0.000056743621826171875,
+            0.129150390625,         -0.0000020265579223632812,
+            0.00579833984375,       3870,
+            0,                      5.960464477539063e-8,
+            0.067138671875,         -0.0082855224609375,
+            0,                      10.6484375,
+            5.960464477539063e-8,   -24.0625,
+            -0.1612548828125,       -0.00015807151794433594,
+            303,                    5.960464477539063e-8
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'pow float16 5D base tensor and 5D integer exponent tensor',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.84375,      -0.0631103515625, -9.8671875, 11.1796875,
+            -17.34375,     11.859375,        -16.828125, 2.658203125,
+            -2.783203125,  -13.7578125,      13.1328125, -0.437744140625,
+            -15.6796875,   10.28125,         14.890625,  -4.94140625,
+            -14.234375,    3.263671875,      17.234375,  -2.88671875,
+            -1.4404296875, -5.7578125,       17.40625,   17.421875
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            1,  3,  -7, 2,  -2, 1, 2,  -10, -2, -5, -2, -10,
+            -8, -7, -1, -3, -9, 2, -6, 3,   -5, -5, 2,  -6
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'pow',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            17.84375,               -0.0002512931823730469,
+            -1.1920928955078125e-7, 125,
+            0.0033245086669921875,  11.859375,
+            283.25,                 0.000056743621826171875,
+            0.129150390625,         -0.0000020265579223632812,
+            0.00579833984375,       3870,
+            0,                      5.960464477539063e-8,
+            0.067138671875,         -0.0082855224609375,
+            0,                      10.6484375,
+            5.960464477539063e-8,   -24.0625,
+            -0.1612548828125,       -0.00015807151794433594,
+            303,                    5.960464477539063e-8
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name':
+        'pow (square) float16 4D base tensor and broadcastable 0D integer exponent scalar',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.84375,      -0.0631103515625, -9.8671875, 11.1796875,
+            -17.34375,     11.859375,        -16.828125, 2.658203125,
+            -2.783203125,  -13.7578125,      13.1328125, -0.437744140625,
+            -15.6796875,   10.28125,         14.890625,  -4.94140625,
+            -14.234375,    3.263671875,      17.234375,  -2.88671875,
+            -1.4404296875, -5.7578125,       17.40625,   17.421875
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'},
+          'constant': true
+        },
+        'inputB': {'data': [2], 'descriptor': {shape: [], dataType: 'float16'}}
+      },
+      'operators': [{
+        'name': 'pow',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            318.5,      0.0039825439453125,
+            97.375,     125,
+            300.75,     140.625,
+            283.25,     7.06640625,
+            7.74609375, 189.25,
+            172.5,      0.191650390625,
+            245.875,    105.6875,
+            221.75,     24.421875,
+            202.625,    10.6484375,
+            297,        8.3359375,
+            2.07421875, 33.15625,
+            303,        303.5
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name':
+        'pow (sqrt) float16 4D positive base tensor and broadcastable 0D integer exponent scalar',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            1.4189453125, 19.390625,   12.984375, 2.4609375, 7.81640625,
+            6.9453125,    12.1875,     17.90625,  11.359375, 8.921875,
+            17.640625,    11.5,        18.515625, 2.2578125, 2.232421875,
+            13.6328125,   17.546875,   0.5390625, 5.890625,  0.1280517578125,
+            19.65625,     3.412109375, 4.9453125, 4.4375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'},
+          'constant': true
+        },
+        'inputB':
+            {'data': [0.5], 'descriptor': {shape: [], dataType: 'float16'}}
+      },
+      'operators': [{
+        'name': 'pow',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            1.19140625,  4.40234375,  3.603515625, 1.568359375,  2.794921875,
+            2.634765625, 3.490234375, 4.23046875,  3.37109375,   2.986328125,
+            4.19921875,  3.390625,    4.3046875,   1.5029296875, 1.494140625,
+            3.69140625,  4.1875,      0.734375,    2.427734375,  0.35791015625,
+            4.43359375,  1.84765625,  2.224609375, 2.107421875
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name':
+        'pow float16 4D base tensor and broadcastable 2D integer exponent tensor',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.84375,      -0.0631103515625, -9.8671875, 11.1796875,
+            -17.34375,     11.859375,        -16.828125, 2.658203125,
+            -2.783203125,  -13.7578125,      13.1328125, -0.437744140625,
+            -15.6796875,   10.28125,         14.890625,  -4.94140625,
+            -14.234375,    3.263671875,      17.234375,  -2.88671875,
+            -1.4404296875, -5.7578125,       17.40625,   17.421875
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [3, -2, -1, 2, -7, -5],
+          'descriptor': {shape: [2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'pow',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            5680,      251.125,          -0.101318359375,
+            125,       0,                0.000004291534423828125,
+            -4764,     0.1414794921875,  -0.359375,
+            189.25,    0,                -62.21875,
+            -3854,     0.00946044921875, 0.067138671875,
+            24.421875, 0,                0.0027008056640625,
+            5120,      0.1199951171875,  -0.6943359375,
+            33.15625,  0,                5.960464477539062e-7
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name':
+        'pow float16 4D base tensor and broadcastable 3D integer exponent tensor',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            17.84375,      -0.0631103515625, -9.8671875, 11.1796875,
+            -17.34375,     11.859375,        -16.828125, 2.658203125,
+            -2.783203125,  -13.7578125,      13.1328125, -0.437744140625,
+            -15.6796875,   10.28125,         14.890625,  -4.94140625,
+            -14.234375,    3.263671875,      17.234375,  -2.88671875,
+            -1.4404296875, -5.7578125,       17.40625,   17.421875
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [-1, 1, 3, -2],
+          'descriptor': {shape: [2, 2, 1], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'pow',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            0.0560302734375,      -15.84375,            -0.101318359375,
+            11.1796875,           -17.34375,            11.859375,
+            -4764,                18.78125,             -21.5625,
+            0.005283355712890625, 0.00579833984375,     5.21875,
+            -0.06378173828125,    0.0972900390625,      0.067138671875,
+            -4.94140625,          -14.234375,           3.263671875,
+            5120,                 -24.0625,             -2.98828125,
+            0.0301666259765625,   0.003299713134765625, 0.0032939910888671875
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
   }
 ];
 
diff --git a/tests/wpt/tests/webnn/conformance_tests/quantizeLinear.https.any.js b/tests/wpt/tests/webnn/conformance_tests/quantizeLinear.https.any.js
index 5c4989fdf31..0e9fe5e6b4a 100644
--- a/tests/wpt/tests/webnn/conformance_tests/quantizeLinear.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/quantizeLinear.https.any.js
@@ -574,6 +574,44 @@ const quantizeLinearTests = [
         }
       }
     }
+  },
+
+  {
+    'name': 'quantizeLinear int32 1D tensor with float32 scalar scale',
+    'graph': {
+      'inputs': {
+        'quantizeLinearInput': {
+          'data': [-22405.495643615723, 7391418.921366602],
+          'descriptor': {shape: [2], dataType: 'float32'},
+          'constant': false
+        },
+        'quantizeLinearScale': {
+          'data': [1.1202747821807861, 0.2800687253475189],
+          'descriptor': {shape: [2], dataType: 'float32'},
+          'constant': true
+        },
+        'quantizeLinearZeroPoint': {
+          'data': [32345, -2445234],
+          'descriptor': {shape: [2], dataType: 'int32'},
+          'constant': true
+        }
+      },
+      'operators': [{
+        'name': 'quantizeLinear',
+        'arguments': [
+          {'input': 'quantizeLinearInput'},
+          {'scale': 'quantizeLinearScale'},
+          {'zeroPoint': 'quantizeLinearZeroPoint'}
+        ],
+        'outputs': 'quantizeLinearOutput'
+      }],
+      'expectedOutputs': {
+        'quantizeLinearOutput': {
+          'data': [12345, 23946213],
+          'descriptor': {shape: [2], dataType: 'int32'}
+        }
+      }
+    }
   }
 ];
 
diff --git a/tests/wpt/tests/webnn/conformance_tests/sub.https.any.js b/tests/wpt/tests/webnn/conformance_tests/sub.https.any.js
index 565f532c8f0..2f2fadf7282 100644
--- a/tests/wpt/tests/webnn/conformance_tests/sub.https.any.js
+++ b/tests/wpt/tests/webnn/conformance_tests/sub.https.any.js
@@ -522,6 +522,400 @@ const subTests = [
         }
       }
     }
+  },
+
+  // float16 tests
+  {
+    'name': 'sub float16 1D constant tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            73.5625,  14.484375, -69.375,   -52.03125, -75.8125, -2.2734375,
+            -83.3125, 15.578125, -62.6875,  32.96875,  82.5625,  -74.9375,
+            78.25,    48.40625,  -19.15625, -85.9375,  89.125,   22.875,
+            80.5625,  97.625,    52.75,     89.1875,   -20.5,    99.5
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        },
+        'inputB': {
+          'data': [
+            -49.125,   40.1875,  7.2265625, 89.25,     -81.4375,  59.625,
+            11.234375, 48.875,   85.25,     27.6875,   30.984375, -38.125,
+            -83.125,   -86.1875, 16.765625, 46.125,    -28.4375,  28.234375,
+            35.25,     -77.0625, -57.875,   -58.15625, 27.484375, 32
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'},
+          'constant': true
+        }
+      },
+      'operators': [{
+        'name': 'sub',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            122.6875, -25.703125, -76.625,  -141.25, 5.625,    -61.90625,
+            -94.5625, -33.3125,   -148,     5.28125, 51.5625,  -36.8125,
+            161.375,  134.625,    -35.9375, -132,    117.5625, -5.359375,
+            45.3125,  174.75,     110.625,  147.375, -48,      67.5
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'sub float16 1D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            73.5625,  14.484375, -69.375,   -52.03125, -75.8125, -2.2734375,
+            -83.3125, 15.578125, -62.6875,  32.96875,  82.5625,  -74.9375,
+            78.25,    48.40625,  -19.15625, -85.9375,  89.125,   22.875,
+            80.5625,  97.625,    52.75,     89.1875,   -20.5,    99.5
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -49.125,   40.1875,  7.2265625, 89.25,     -81.4375,  59.625,
+            11.234375, 48.875,   85.25,     27.6875,   30.984375, -38.125,
+            -83.125,   -86.1875, 16.765625, 46.125,    -28.4375,  28.234375,
+            35.25,     -77.0625, -57.875,   -58.15625, 27.484375, 32
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'sub',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            122.6875, -25.703125, -76.625,  -141.25, 5.625,    -61.90625,
+            -94.5625, -33.3125,   -148,     5.28125, 51.5625,  -36.8125,
+            161.375,  134.625,    -35.9375, -132,    117.5625, -5.359375,
+            45.3125,  174.75,     110.625,  147.375, -48,      67.5
+          ],
+          'descriptor': {shape: [24], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'sub float16 2D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            73.5625,  14.484375, -69.375,   -52.03125, -75.8125, -2.2734375,
+            -83.3125, 15.578125, -62.6875,  32.96875,  82.5625,  -74.9375,
+            78.25,    48.40625,  -19.15625, -85.9375,  89.125,   22.875,
+            80.5625,  97.625,    52.75,     89.1875,   -20.5,    99.5
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -49.125,   40.1875,  7.2265625, 89.25,     -81.4375,  59.625,
+            11.234375, 48.875,   85.25,     27.6875,   30.984375, -38.125,
+            -83.125,   -86.1875, 16.765625, 46.125,    -28.4375,  28.234375,
+            35.25,     -77.0625, -57.875,   -58.15625, 27.484375, 32
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'sub',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            122.6875, -25.703125, -76.625,  -141.25, 5.625,    -61.90625,
+            -94.5625, -33.3125,   -148,     5.28125, 51.5625,  -36.8125,
+            161.375,  134.625,    -35.9375, -132,    117.5625, -5.359375,
+            45.3125,  174.75,     110.625,  147.375, -48,      67.5
+          ],
+          'descriptor': {shape: [4, 6], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'sub float16 3D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            73.5625,  14.484375, -69.375,   -52.03125, -75.8125, -2.2734375,
+            -83.3125, 15.578125, -62.6875,  32.96875,  82.5625,  -74.9375,
+            78.25,    48.40625,  -19.15625, -85.9375,  89.125,   22.875,
+            80.5625,  97.625,    52.75,     89.1875,   -20.5,    99.5
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -49.125,   40.1875,  7.2265625, 89.25,     -81.4375,  59.625,
+            11.234375, 48.875,   85.25,     27.6875,   30.984375, -38.125,
+            -83.125,   -86.1875, 16.765625, 46.125,    -28.4375,  28.234375,
+            35.25,     -77.0625, -57.875,   -58.15625, 27.484375, 32
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'sub',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            122.6875, -25.703125, -76.625,  -141.25, 5.625,    -61.90625,
+            -94.5625, -33.3125,   -148,     5.28125, 51.5625,  -36.8125,
+            161.375,  134.625,    -35.9375, -132,    117.5625, -5.359375,
+            45.3125,  174.75,     110.625,  147.375, -48,      67.5
+          ],
+          'descriptor': {shape: [2, 3, 4], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'sub float16 4D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            73.5625,  14.484375, -69.375,   -52.03125, -75.8125, -2.2734375,
+            -83.3125, 15.578125, -62.6875,  32.96875,  82.5625,  -74.9375,
+            78.25,    48.40625,  -19.15625, -85.9375,  89.125,   22.875,
+            80.5625,  97.625,    52.75,     89.1875,   -20.5,    99.5
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -49.125,   40.1875,  7.2265625, 89.25,     -81.4375,  59.625,
+            11.234375, 48.875,   85.25,     27.6875,   30.984375, -38.125,
+            -83.125,   -86.1875, 16.765625, 46.125,    -28.4375,  28.234375,
+            35.25,     -77.0625, -57.875,   -58.15625, 27.484375, 32
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'sub',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            122.6875, -25.703125, -76.625,  -141.25, 5.625,    -61.90625,
+            -94.5625, -33.3125,   -148,     5.28125, 51.5625,  -36.8125,
+            161.375,  134.625,    -35.9375, -132,    117.5625, -5.359375,
+            45.3125,  174.75,     110.625,  147.375, -48,      67.5
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'sub float16 5D tensors',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            73.5625,  14.484375, -69.375,   -52.03125, -75.8125, -2.2734375,
+            -83.3125, 15.578125, -62.6875,  32.96875,  82.5625,  -74.9375,
+            78.25,    48.40625,  -19.15625, -85.9375,  89.125,   22.875,
+            80.5625,  97.625,    52.75,     89.1875,   -20.5,    99.5
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            -49.125,   40.1875,  7.2265625, 89.25,     -81.4375,  59.625,
+            11.234375, 48.875,   85.25,     27.6875,   30.984375, -38.125,
+            -83.125,   -86.1875, 16.765625, 46.125,    -28.4375,  28.234375,
+            35.25,     -77.0625, -57.875,   -58.15625, 27.484375, 32
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'sub',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            122.6875, -25.703125, -76.625,  -141.25, 5.625,    -61.90625,
+            -94.5625, -33.3125,   -148,     5.28125, 51.5625,  -36.8125,
+            161.375,  134.625,    -35.9375, -132,    117.5625, -5.359375,
+            45.3125,  174.75,     110.625,  147.375, -48,      67.5
+          ],
+          'descriptor': {shape: [2, 2, 1, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'sub float16 broadcast 1D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [-97.0625],
+          'descriptor': {shape: [1], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            73.5625,  14.484375, -69.375,   -52.03125, -75.8125, -2.2734375,
+            -83.3125, 15.578125, -62.6875,  32.96875,  82.5625,  -74.9375,
+            78.25,    48.40625,  -19.15625, -85.9375,  89.125,   22.875,
+            80.5625,  97.625,    52.75,     89.1875,   -20.5,    99.5
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'sub',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -170.625, -111.5625, -27.6875, -45.03125, -21.25,   -94.8125,
+            -13.75,   -112.625,  -34.375,  -130,      -179.625, -22.125,
+            -175.25,  -145.5,    -77.875,  -11.125,   -186.25,  -119.9375,
+            -177.625, -194.75,   -149.75,  -186.25,   -76.5625, -196.5
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'sub float16 broadcast 2D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            73.5625,  14.484375, -69.375,   -52.03125, -75.8125, -2.2734375,
+            -83.3125, 15.578125, -62.6875,  32.96875,  82.5625,  -74.9375,
+            78.25,    48.40625,  -19.15625, -85.9375,  89.125,   22.875,
+            80.5625,  97.625,    52.75,     89.1875,   -20.5,    99.5
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [10.765625, -90.25, 12.7890625, -62.4375, 32.1875, 20.359375],
+          'descriptor': {shape: [2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'sub',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            62.8125,  104.75,   -82.1875, 10.40625, -108,     -22.625,
+            -94.0625, 105.8125, -75.5,    95.375,   50.375,   -95.3125,
+            67.5,     138.625,  -31.9375, -23.5,    56.9375,  2.515625,
+            69.8125,  187.875,  39.96875, 151.625,  -52.6875, 79.125
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'sub float16 broadcast 3D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [
+            73.5625,  14.484375, -69.375,   -52.03125, -75.8125, -2.2734375,
+            -83.3125, 15.578125, -62.6875,  32.96875,  82.5625,  -74.9375,
+            78.25,    48.40625,  -19.15625, -85.9375,  89.125,   22.875,
+            80.5625,  97.625,    52.75,     89.1875,   -20.5,    99.5
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [-8.390625, 75.5625, -32.3125, 8.0859375],
+          'descriptor': {shape: [2, 2, 1], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'sub',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            81.9375, 22.875,  -61,        -127.625, -151.375,  -77.8125,
+            -51,     47.875,  -30.375,    24.875,   74.5,      -83,
+            86.625,  56.8125, -10.765625, -161.5,   13.5625,   -52.6875,
+            112.875, 130,     85.0625,    81.125,   -28.59375, 91.4375
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
+  },
+  {
+    'name': 'sub float16 broadcast 4D to 4D',
+    'graph': {
+      'inputs': {
+        'inputA': {
+          'data': [-97.0625],
+          'descriptor': {shape: [1, 1, 1, 1], dataType: 'float16'}
+        },
+        'inputB': {
+          'data': [
+            73.5625,  14.484375, -69.375,   -52.03125, -75.8125, -2.2734375,
+            -83.3125, 15.578125, -62.6875,  32.96875,  82.5625,  -74.9375,
+            78.25,    48.40625,  -19.15625, -85.9375,  89.125,   22.875,
+            80.5625,  97.625,    52.75,     89.1875,   -20.5,    99.5
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      },
+      'operators': [{
+        'name': 'sub',
+        'arguments': [{'a': 'inputA'}, {'b': 'inputB'}],
+        'outputs': 'output'
+      }],
+      'expectedOutputs': {
+        'output': {
+          'data': [
+            -170.625, -111.5625, -27.6875, -45.03125, -21.25,   -94.8125,
+            -13.75,   -112.625,  -34.375,  -130,      -179.625, -22.125,
+            -175.25,  -145.5,    -77.875,  -11.125,   -186.25,  -119.9375,
+            -177.625, -194.75,   -149.75,  -186.25,   -76.5625, -196.5
+          ],
+          'descriptor': {shape: [2, 2, 2, 3], dataType: 'float16'}
+        }
+      }
+    }
   }
 ];
 
diff --git a/tests/wpt/tests/webrtc/outbound-rtp-encoding-index.https.html b/tests/wpt/tests/webrtc/outbound-rtp-encoding-index.https.html
new file mode 100644
index 00000000000..825fe6949c3
--- /dev/null
+++ b/tests/wpt/tests/webrtc/outbound-rtp-encoding-index.https.html
@@ -0,0 +1,97 @@
+<!doctype html>
+<meta charset=utf-8>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="third_party/sdp/sdp.js"></script>
+<script src="simulcast/simulcast.js"></script>
+<script>
+'use strict';
+
+async function pollUntilMultipleOutboundRtps(pc, kTimeoutMs = 10000) {
+  const t0 = performance.now();
+  while (performance.now() - t0 < kTimeoutMs) {
+    const report = await pc.getStats();
+    const outboundRtps = Array.from(
+        report.values().filter(s => s.type == 'outbound-rtp'));
+    if (outboundRtps.length > 1) {
+      return;
+    }
+  }
+  throw 'Timed out waiting for multple outbound-rtp stats objects';
+}
+
+promise_test(async t => {
+  const pc1 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc2.close());
+  pc1.addTransceiver('video');
+
+  // O/A is needed to ensure outbound-rtp exists.
+  await pc1.setLocalDescription();
+  await pc2.setRemoteDescription(pc1.localDescription);
+  await pc2.setLocalDescription();
+  await pc1.setRemoteDescription(pc2.localDescription);
+
+  const report = await pc1.getStats();
+  const outboundRtp = report.values().find(s => s.type == 'outbound-rtp');
+  assert_not_equals(outboundRtp, undefined, 'outbound-rtp exists');
+
+  assert_equals(outboundRtp.encodingIndex, 0, 'encodingIndex is 0');
+}, `In singlecast, encodingIndex is 0`);
+
+promise_test(async t => {
+  const pc1 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc2.close());
+
+  pc1.addTransceiver('video', {sendEncodings: [{rid: 'foo'}, {rid: 'bar'}]});
+  // O/A with tweaks to accept simulcast.
+  await doOfferToSendSimulcastAndAnswer(pc1, pc2, ['foo', 'bar']);
+
+  // Workaround to RTP stats lifetime bug: In some browsers it takes a little
+  // while before multiple outbound RTP stats objects appear in the report.
+  // TODO(https://crbug.com/406585888): Test coverage for this should be added
+  // to rtp-stats-lifetime.https.html. When that test passes, delete this
+  // workaround.
+  await pollUntilMultipleOutboundRtps(pc1);
+
+  const report = await pc1.getStats();
+  // The RTP stream for sendEncodings[0].
+  const outboundRtpFoo = report.values().find(
+      s => s.type == 'outbound-rtp' && s.rid == 'foo');
+  assert_not_equals(outboundRtpFoo, undefined,
+                    `outbound-rtp with rid:'foo' exists`);
+  assert_equals(outboundRtpFoo.encodingIndex, 0,
+                `outbound-rtp with rid:'foo' has encodingIndex 0`);
+  // The RTP stream for sendEncodings[1].
+  const outboundRtpBar = report.values().find(
+      s => s.type == 'outbound-rtp' && s.rid == 'bar');
+  assert_not_equals(outboundRtpBar, undefined,
+                    `outbound-rtp with rid:'bar' exists`);
+  assert_equals(outboundRtpBar.encodingIndex, 1,
+                `outbound-rtp with rid:'bar' has encodingIndex 1`);
+}, `In simulcast, encodingIndex reflects index of sendEncodings`);
+
+promise_test(async t => {
+  const pc1 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc2.close());
+
+  pc1.addTransceiver('audio');
+  // O/A is needed to ensure outbound-rtp exists.
+  await pc1.setLocalDescription();
+  await pc2.setRemoteDescription(pc1.localDescription);
+  await pc2.setLocalDescription();
+  await pc1.setRemoteDescription(pc2.localDescription);
+
+  const report = await pc1.getStats();
+  const outboundRtp = report.values().find(s => s.type == 'outbound-rtp');
+  assert_not_equals(outboundRtp, undefined, 'outbound-rtp exists');
+
+  assert_equals(outboundRtp.encodingIndex, undefined,
+                'encodingIndex is undefined');
+}, `encodingIndex is undefined for audio streams`);
+</script>
diff --git a/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini b/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini
index 68603ee5931..435cfbe0d5c 100644
--- a/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini
+++ b/tests/wpt/webgl/meta/conformance/textures/misc/texture-upload-size.html.ini
@@ -13,6 +13,3 @@
 
   [WebGL test #588]
     expected: FAIL
-
-  [WebGL test #60]
-    expected: FAIL