diff --git a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
index 947e223fb28..3a3d15b8406 100644
--- a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
@@ -14,6 +14,9 @@
   [Revoke blob URL after creating Request, will fetch]
     expected: FAIL
 
+  [Revoke blob URL after calling fetch, fetch should succeed]
+    expected: FAIL
+
 
 [url-with-fetch.any.html]
   [Untitled]
@@ -34,3 +37,6 @@
   [Revoke blob URL after creating Request, will fetch]
     expected: FAIL
 
+  [Revoke blob URL after calling fetch, fetch should succeed]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 8f29ccc2a3d..63b24083847 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -125251,6 +125251,54 @@
      {}
     ]
    ],
+   "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001.html": [
+    [
+     "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001.html",
+     [
+      [
+       "/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-002.html": [
+    [
+     "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-002.html",
+     [
+      [
+       "/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-003.html": [
+    [
+     "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-003.html",
+     [
+      [
+       "/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-004.html": [
+    [
+     "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-004.html",
+     [
+      [
+       "/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-grid/alignment/grid-self-alignment-stretch-input-range.html": [
     [
      "css/css-grid/alignment/grid-self-alignment-stretch-input-range.html",
@@ -127219,6 +127267,30 @@
      {}
     ]
    ],
+   "css/css-grid/subgrid/abs-pos-001.html": [
+    [
+     "css/css-grid/subgrid/abs-pos-001.html",
+     [
+      [
+       "/css/css-grid/subgrid/abs-pos-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/abs-pos-002.html": [
+    [
+     "css/css-grid/subgrid/abs-pos-002.html",
+     [
+      [
+       "/css/css-grid/subgrid/abs-pos-002-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-grid/subgrid/auto-track-sizing-001.html": [
     [
      "css/css-grid/subgrid/auto-track-sizing-001.html",
@@ -127231,6 +127303,342 @@
      {}
     ]
    ],
+   "css/css-grid/subgrid/baseline-001.html": [
+    [
+     "css/css-grid/subgrid/baseline-001.html",
+     [
+      [
+       "/css/css-grid/subgrid/baseline-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-001.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-001.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-002.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-002.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-002-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-003.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-003.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-003-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-004.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-004.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-004-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-005.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-005.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-005-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-006.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-006.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-006-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-007.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-007.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-007-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-008.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-008.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-008-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-009.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-009.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-009-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-larger-001.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-larger-001.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-larger-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-larger-002.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-larger-002.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-larger-002-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-normal-001.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-normal-001.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-normal-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/grid-gap-smaller-001.html": [
+    [
+     "css/css-grid/subgrid/grid-gap-smaller-001.html",
+     [
+      [
+       "/css/css-grid/subgrid/grid-gap-smaller-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/item-percentage-height-001.html": [
+    [
+     "css/css-grid/subgrid/item-percentage-height-001.html",
+     [
+      [
+       "/css/css-grid/subgrid/item-percentage-height-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/line-names-001.html": [
+    [
+     "css/css-grid/subgrid/line-names-001.html",
+     [
+      [
+       "/css/css-grid/subgrid/line-names-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/line-names-002.html": [
+    [
+     "css/css-grid/subgrid/line-names-002.html",
+     [
+      [
+       "/css/css-grid/subgrid/line-names-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/line-names-003.html": [
+    [
+     "css/css-grid/subgrid/line-names-003.html",
+     [
+      [
+       "/css/css-grid/subgrid/line-names-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/line-names-004.html": [
+    [
+     "css/css-grid/subgrid/line-names-004.html",
+     [
+      [
+       "/css/css-grid/subgrid/line-names-004-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/line-names-005.html": [
+    [
+     "css/css-grid/subgrid/line-names-005.html",
+     [
+      [
+       "/css/css-grid/subgrid/line-names-005-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/line-names-006.html": [
+    [
+     "css/css-grid/subgrid/line-names-006.html",
+     [
+      [
+       "/css/css-grid/subgrid/line-names-006-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/line-names-007.html": [
+    [
+     "css/css-grid/subgrid/line-names-007.html",
+     [
+      [
+       "/css/css-grid/subgrid/line-names-007-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/line-names-008.html": [
+    [
+     "css/css-grid/subgrid/line-names-008.html",
+     [
+      [
+       "/css/css-grid/subgrid/line-names-008-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/orthogonal-writing-mode-001.html": [
+    [
+     "css/css-grid/subgrid/orthogonal-writing-mode-001.html",
+     [
+      [
+       "/css/css-grid/subgrid/orthogonal-writing-mode-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/orthogonal-writing-mode-002.html": [
+    [
+     "css/css-grid/subgrid/orthogonal-writing-mode-002.html",
+     [
+      [
+       "/css/css-grid/subgrid/orthogonal-writing-mode-002-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/orthogonal-writing-mode-003.html": [
+    [
+     "css/css-grid/subgrid/orthogonal-writing-mode-003.html",
+     [
+      [
+       "/css/css-grid/subgrid/orthogonal-writing-mode-003-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/orthogonal-writing-mode-004.html": [
+    [
+     "css/css-grid/subgrid/orthogonal-writing-mode-004.html",
+     [
+      [
+       "/css/css-grid/subgrid/orthogonal-writing-mode-004-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-grid/subgrid/subgrid-item-block-size-001.html": [
+    [
+     "css/css-grid/subgrid/subgrid-item-block-size-001.html",
+     [
+      [
+       "/css/css-grid/subgrid/subgrid-item-block-size-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-images/css-image-fallbacks-and-annotations.html": [
     [
      "css/css-images/css-image-fallbacks-and-annotations.html",
@@ -170745,6 +171153,30 @@
      {}
     ]
    ],
+   "css/css-writing-modes/direction-upright-001.html": [
+    [
+     "css/css-writing-modes/direction-upright-001.html",
+     [
+      [
+       "/css/css-writing-modes/reference/direction-upright-001.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-writing-modes/direction-upright-002.html": [
+    [
+     "css/css-writing-modes/direction-upright-002.html",
+     [
+      [
+       "/css/css-writing-modes/reference/direction-upright-002.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-writing-modes/direction-vlr-003.xht": [
     [
      "css/css-writing-modes/direction-vlr-003.xht",
@@ -201933,6 +202365,18 @@
      {}
     ]
    ],
+   "mathml/presentation-markup/menclose/legacy-menclose-radical-notation.html": [
+    [
+     "mathml/presentation-markup/menclose/legacy-menclose-radical-notation.html",
+     [
+      [
+       "/mathml/presentation-markup/menclose/legacy-menclose-radical-notation-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "mathml/presentation-markup/operators/mo-form-dynamic.html": [
     [
      "mathml/presentation-markup/operators/mo-form-dynamic.html",
@@ -202677,6 +203121,18 @@
      {}
     ]
    ],
+   "mathml/relations/html5-tree/display-2.html": [
+    [
+     "mathml/relations/html5-tree/display-2.html",
+     [
+      [
+       "/mathml/relations/html5-tree/display-2-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "mathml/relations/html5-tree/dynamic-1.html": [
     [
      "mathml/relations/html5-tree/dynamic-1.html",
@@ -248682,6 +249138,9 @@
    "css/css-grid/abspos/support/positioned-grid-descendants.js": [
     []
    ],
+   "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001-ref.html": [
+    []
+   ],
    "css/css-grid/alignment/grid-self-alignment-stretch-input-range-ref.html": [
     []
    ],
@@ -248862,9 +249321,93 @@
    "css/css-grid/reference/grid-text-green-margin-no-collapse-ref.html": [
     []
    ],
+   "css/css-grid/subgrid/abs-pos-001-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/abs-pos-002-ref.html": [
+    []
+   ],
    "css/css-grid/subgrid/auto-track-sizing-001-ref.html": [
     []
    ],
+   "css/css-grid/subgrid/baseline-001-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-001-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-002-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-003-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-004-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-005-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-006-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-007-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-008-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-009-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-larger-001-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-larger-002-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-normal-001-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/grid-gap-smaller-001-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/item-percentage-height-001-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/line-names-001-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/line-names-004-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/line-names-005-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/line-names-006-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/line-names-007-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/line-names-008-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/orthogonal-writing-mode-001-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/orthogonal-writing-mode-002-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/orthogonal-writing-mode-003-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/orthogonal-writing-mode-004-ref.html": [
+    []
+   ],
+   "css/css-grid/subgrid/subgrid-item-block-size-001-ref.html": [
+    []
+   ],
    "css/css-grid/test-plan/index.html": [
     []
    ],
@@ -256803,6 +257346,12 @@
    "css/css-writing-modes/reference/ch-units-vrl-005-ref.html": [
     []
    ],
+   "css/css-writing-modes/reference/direction-upright-001.html": [
+    []
+   ],
+   "css/css-writing-modes/reference/direction-upright-002.html": [
+    []
+   ],
    "css/css-writing-modes/reference/full-width-001-horizontal-notref.html": [
     []
    ],
@@ -272628,6 +273177,9 @@
    "mathml/presentation-markup/fractions/frac-visibility-001-ref.html": [
     []
    ],
+   "mathml/presentation-markup/menclose/legacy-menclose-radical-notation-ref.html": [
+    []
+   ],
    "mathml/presentation-markup/operators/mo-form-dynamic-ref.html": [
     []
    ],
@@ -272814,6 +273366,9 @@
    "mathml/relations/html5-tree/css-inline-style-dynamic.tentative-ref.html": [
     []
    ],
+   "mathml/relations/html5-tree/display-2-ref.html": [
+    []
+   ],
    "mathml/relations/html5-tree/dynamic-1-ref.html": [
     []
    ],
@@ -310556,6 +311111,18 @@
      {}
     ]
    ],
+   "css/CSS2/positioning/relpos-percentage-left-in-scrollable.html": [
+    [
+     "css/CSS2/positioning/relpos-percentage-left-in-scrollable.html",
+     {}
+    ]
+   ],
+   "css/CSS2/positioning/relpos-percentage-top-in-scrollable.html": [
+    [
+     "css/CSS2/positioning/relpos-percentage-top-in-scrollable.html",
+     {}
+    ]
+   ],
    "css/compositing/inheritance.html": [
     [
      "css/compositing/inheritance.html",
@@ -326998,6 +327565,12 @@
      {}
     ]
    ],
+   "css/cssom-view/offsetTopLeft-border-box.html": [
+    [
+     "css/cssom-view/offsetTopLeft-border-box.html",
+     {}
+    ]
+   ],
    "css/cssom-view/offsetTopLeft-empty-inline-offset.html": [
     [
      "css/cssom-view/offsetTopLeft-empty-inline-offset.html",
@@ -363850,6 +364423,12 @@
      {}
     ]
    ],
+   "mathml/presentation-markup/mrow/legacy-mstyle-attributes.html": [
+    [
+     "mathml/presentation-markup/mrow/legacy-mstyle-attributes.html",
+     {}
+    ]
+   ],
    "mathml/presentation-markup/operators/embellished-operator-001.html": [
     [
      "mathml/presentation-markup/operators/embellished-operator-001.html",
@@ -515771,6 +516350,14 @@
    "49c73248613c45a607b0688059a569ea6913165d",
    "reftest"
   ],
+  "css/CSS2/positioning/relpos-percentage-left-in-scrollable.html": [
+   "54856e729010b9590619c670870837d26a6f1ed5",
+   "testharness"
+  ],
+  "css/CSS2/positioning/relpos-percentage-top-in-scrollable.html": [
+   "f4e7e2a839ffbebed02959c9b6318396ab34a215",
+   "testharness"
+  ],
   "css/CSS2/positioning/right-004-ref.xht": [
    "14d8891062692018a70551cb09c6a5ce5a1a6b46",
    "support"
@@ -561047,6 +561634,26 @@
    "1ee19e439d839ced4021725c2a27655eac001fff",
    "testharness"
   ],
+  "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001-ref.html": [
+   "df72a88262bb813963704773dd69c055e164e656",
+   "support"
+  ],
+  "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001.html": [
+   "19a26d8d6aa5509e81243ab431135676b3a18517",
+   "reftest"
+  ],
+  "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-002.html": [
+   "a426f879c6e8cdc0ccdad6cc193c094ca58d63b5",
+   "reftest"
+  ],
+  "css/css-grid/alignment/grid-self-alignment-baseline-with-grid-003.html": [
+   "ed3bf30317fb278af487a090c51fba867289f1cc",
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    "reftest"
   ],
   "mathml/relations/css-styling/mathsize-attribute-ref.html": [
@@ -648412,7 +649283,7 @@
    "testharness"
   ],
   "mathml/relations/html5-tree/clipboard-event-handlers.tentative.html": [
-   "57ababb4a919d8a5ba876c9ecf7a72c7a113b676",
+   "82fda880887839b72ac8c683d076ea07a8525d80",
    "testharness"
   ],
   "mathml/relations/html5-tree/color-attributes-1-ref.html": [
@@ -648439,6 +649310,14 @@
    "9ecd45f9a4087e41a98546d1afb6faca9d396403",
    "testharness"
   ],
+  "mathml/relations/html5-tree/display-2-ref.html": [
+   "7864c0409914de319866ff86b19c8e423672fa69",
+   "support"
+  ],
+  "mathml/relations/html5-tree/display-2.html": [
+   "d1c68e57c6ed6d03a06ea28fd5c5b49db8a60043",
+   "reftest"
+  ],
   "mathml/relations/html5-tree/dynamic-1-ref.html": [
    "5fa90e9d2fe8bd44a506a8bffa4f1adec6374dda",
    "support"
@@ -648500,7 +649379,7 @@
    "testharness"
   ],
   "mathml/relations/html5-tree/math-global-event-handlers.tentative.html": [
-   "b5b9c75dac1c6c09b4bc74c464f468c681b43b4e",
+   "e96feeaf0960641e4413b7b43b93e46490460ee7",
    "testharness"
   ],
   "mathml/relations/html5-tree/required-extensions-2-ref.html": [
@@ -648568,7 +649447,7 @@
    "support"
   ],
   "mathml/support/feature-detection.js": [
-   "69a6879f33276419ea7885969445c64ba78197b0",
+   "6f1d033b5b9ce7d8c2a6f9bfff589189719b586f",
    "support"
   ],
   "mathml/support/layout-comparison.js": [
@@ -672736,7 +673615,7 @@
    "support"
   ],
   "resources/chromium/nfc-mock.js": [
-   "01a4e70d0c9730d1bf9d8ab93037549acfbee61b",
+   "025b1f6bfed599dd0a97f1a57cf7bdf78db74a78",
    "support"
   ],
   "resources/chromium/sensor.mojom.js": [
@@ -692448,7 +693327,7 @@
    "testharness"
   ],
   "web-nfc/NFCWriter_push.https.html": [
-   "dcd23307a2e4bab5677d07f6780fd6a339bc463e",
+   "cc8c94188d5bbe109fc3c395dc8fa36739b0cc62",
    "testharness"
   ],
   "web-nfc/README.md": [
@@ -696008,7 +696887,7 @@
    "testharness"
   ],
   "websockets/Create-Secure-extensions-empty.any.js": [
-   "0a2d883d35b6f641d762163c4ab66f4c4fae9351",
+   "bff3d1a595e64a996a217be575beb30bb8b56e3f",
    "testharness"
   ],
   "websockets/Create-Secure-url-with-space.any.js": [
diff --git a/tests/wpt/metadata/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html.ini b/tests/wpt/metadata/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html.ini
new file mode 100644
index 00000000000..d6c749574b4
--- /dev/null
+++ b/tests/wpt/metadata/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html.ini
@@ -0,0 +1,4 @@
+[relpos-percentage-left-in-scrollable.html]
+  [relpos-percentage-left-in-scrollable]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html.ini b/tests/wpt/metadata/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html.ini
new file mode 100644
index 00000000000..e6c121200a0
--- /dev/null
+++ b/tests/wpt/metadata/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html.ini
@@ -0,0 +1,4 @@
+[relpos-percentage-top-in-scrollable.html]
+  [relpos-percentage-top-in-scrollable]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/compositing/mix-blend-mode/mix-blend-mode-animation.html.ini b/tests/wpt/metadata/css/compositing/mix-blend-mode/mix-blend-mode-animation.html.ini
new file mode 100644
index 00000000000..5496474410b
--- /dev/null
+++ b/tests/wpt/metadata/css/compositing/mix-blend-mode/mix-blend-mode-animation.html.ini
@@ -0,0 +1,2 @@
+[mix-blend-mode-animation.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
index e89282b04a1..ff5b07adb77 100644
--- a/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
+++ b/tests/wpt/metadata/css/cssom-view/elementsFromPoint-iframes.html.ini
@@ -1,5 +1,5 @@
 [elementsFromPoint-iframes.html]
-  expected: CRASH
+  expected: TIMEOUT
   [elementsFromPoint on the root document for points in iframe elements]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/dom/nodes/Document-contentType/contentType/contenttype_txt.html.ini b/tests/wpt/metadata/dom/nodes/Document-contentType/contentType/contenttype_txt.html.ini
deleted file mode 100644
index c3916f8555d..00000000000
--- a/tests/wpt/metadata/dom/nodes/Document-contentType/contentType/contenttype_txt.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[contenttype_txt.html]
-  expected: CRASH
diff --git a/tests/wpt/metadata/fetch/content-type/response.window.js.ini b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
index 66d9dfd4fdb..1572c488b50 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -312,27 +312,12 @@
   [<iframe>: separate response Content-Type: */* text/html]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;charset=gbk text/plain text/html]
-    expected: FAIL
-
-  [<iframe>: separate response Content-Type: text/plain */*]
-    expected: FAIL
-
   [<iframe>: combined response Content-Type: */* text/html]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
   [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
-  [<iframe>: separate response Content-Type: text/html */*]
-    expected: FAIL
-
-  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
+  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/content-type/script.window.js.ini b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
index 8ce68f3b168..ac4cbcba706 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -53,6 +53,9 @@
   [combined text/javascript ]
     expected: FAIL
 
-  [separate text/javascript ]
+  [separate text/javascript;charset=windows-1252 error text/javascript]
+    expected: FAIL
+
+  [separate text/javascript x/x]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
index f8988fcd904..87c807a49ff 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,9 +11,3 @@
   [X-Content-Type-Options%3A%20nosniff%0C]
     expected: FAIL
 
-  [X-Content-Type-Options%3A%20'NosniFF']
-    expected: FAIL
-
-  [Content-Type-Options%3A%20nosniff]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
deleted file mode 100644
index dc2e45516de..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_5.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/dom/reflection-forms.html.ini b/tests/wpt/metadata/html/dom/reflection-forms.html.ini
index cc7d34bf5b3..e24e0d9c919 100644
--- a/tests/wpt/metadata/html/dom/reflection-forms.html.ini
+++ b/tests/wpt/metadata/html/dom/reflection-forms.html.ini
@@ -24876,3 +24876,1143 @@
   [datalist.accessKey: IDL set to "+100"]
     expected: FAIL
 
+  [legend.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to false]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [label.autofocus: IDL set to false]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [label.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [output.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to false]
+    expected: FAIL
+
+  [output.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to false]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [form.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [label.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [option.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [output.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [form.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [output.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [output.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [option.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to null]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [form.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [option.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [label.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [form.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [output.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [option.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [output.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to null]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [label.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [label.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [label.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [label.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [output.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [option.autofocus: IDL set to null]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [optgroup.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [output.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [output.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to null]
+    expected: FAIL
+
+  [option.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [label.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [form.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to false]
+    expected: FAIL
+
+  [form.autofocus: IDL set to false]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [form.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [legend.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to null]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [form.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [datalist.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [option.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [option.autofocus: IDL set to false]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to null]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [label.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [form.autofocus: IDL set to null]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [option.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [form.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [option.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [option.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [option.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [form.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [option.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [form.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [label.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [label.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [form.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [output.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [output.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [label.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [label.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [option.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [option.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [option.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [output.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [form.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [output.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [legend.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [output.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [form.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [option.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [output.autofocus: IDL set to false]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [label.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [option.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to false]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [progress.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [output.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [form.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to null]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [output.autofocus: IDL set to null]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [optgroup.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [output.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [form.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [label.autofocus: IDL set to null]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to false]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [progress.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [legend.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [label.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [meter.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [meter.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [form.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [meter.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [output.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [progress.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [label.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [label.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [optgroup.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [option.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [fieldset.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [label.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [form.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [datalist.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [legend.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [datalist.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [meter.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [datalist.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [form.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [progress.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [fieldset.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [option.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [fieldset.autofocus: setAttribute() to true]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/dom/reflection-grouping.html.ini b/tests/wpt/metadata/html/dom/reflection-grouping.html.ini
index 55f557661b8..7248df27c1a 100644
--- a/tests/wpt/metadata/html/dom/reflection-grouping.html.ini
+++ b/tests/wpt/metadata/html/dom/reflection-grouping.html.ini
@@ -21087,3 +21087,1599 @@
   [figure.accessKey: setAttribute() to ".5"]
     expected: FAIL
 
+  [dt.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [main.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [dt.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to false]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [div.autofocus: IDL set to null]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [ul.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [dt.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [li.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [main.autofocus: IDL set to null]
+    expected: FAIL
+
+  [main.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [main.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [main.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [li.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [p.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [div.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [hr.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [p.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [main.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [main.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [li.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [ul.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [div.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to false]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [main.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [p.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [main.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [p.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to false]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to null]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [main.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to null]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [p.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [div.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to null]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [figcaption.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [pre.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [div.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to null]
+    expected: FAIL
+
+  [p.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [div.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [li.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [hr.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [p.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [li.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to false]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [figure.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [div.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to false]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to false]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [p.autofocus: IDL set to false]
+    expected: FAIL
+
+  [li.autofocus: IDL set to null]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to null]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [main.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [main.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [div.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to false]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [div.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [p.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to null]
+    expected: FAIL
+
+  [div.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to null]
+    expected: FAIL
+
+  [blockquote.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to null]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [dl.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [div.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [ol.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to false]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [li.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [li.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [p.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [div.autofocus: IDL set to false]
+    expected: FAIL
+
+  [div.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [p.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [p.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [li.autofocus: IDL set to false]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [li.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [main.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [main.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [main.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [p.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [main.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [li.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [div.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [main.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [li.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [li.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [main.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [main.autofocus: IDL set to false]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [figure.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [li.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [div.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [li.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to false]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to false]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [main.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [ol.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [div.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [div.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [p.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [pre.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [figure.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [p.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [p.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [li.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [p.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [ol.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [dt.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [dl.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [div.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [li.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [li.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [hr.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [hr.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [div.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [figcaption.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [pre.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [dl.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [li.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [p.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [ol.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [dd.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [blockquote.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [dd.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to null]
+    expected: FAIL
+
+  [dt.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [ul.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [blockquote.autofocus: IDL set to null]
+    expected: FAIL
+
+  [ul.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [li.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [p.autofocus: IDL set to null]
+    expected: FAIL
+
+  [figure.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [div.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [dd.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [p.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [dd.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [figcaption.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [dl.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [pre.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/dom/reflection-metadata.html.ini b/tests/wpt/metadata/html/dom/reflection-metadata.html.ini
index 5a64f0d50c3..483a032ffc4 100644
--- a/tests/wpt/metadata/html/dom/reflection-metadata.html.ini
+++ b/tests/wpt/metadata/html/dom/reflection-metadata.html.ini
@@ -11913,3 +11913,687 @@
   [style.media: setAttribute() to "+100"]
     expected: FAIL
 
+  [title.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [head.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [style.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [style.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [head.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [base.autofocus: IDL set to null]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [title.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [title.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [title.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [style.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [style.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [head.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [link.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [link.autofocus: IDL set to false]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [title.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [style.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [style.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [link.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [base.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [head.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [title.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [style.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [head.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [link.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [head.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [head.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [link.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [head.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [base.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [base.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [base.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [base.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [style.autofocus: IDL set to false]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [link.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [title.autofocus: IDL set to false]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [link.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [head.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [base.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [head.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [title.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [style.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [base.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [title.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [link.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [link.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [head.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [style.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [title.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [head.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [link.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [style.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [style.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [head.autofocus: IDL set to false]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [base.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [title.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [title.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [link.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [style.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [head.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [link.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to null]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [title.autofocus: IDL set to null]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [style.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [base.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [head.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [link.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [style.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [base.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [style.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [title.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [title.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [link.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [title.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [base.autofocus: IDL set to false]
+    expected: FAIL
+
+  [head.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [base.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [meta.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [base.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [style.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [base.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [head.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [base.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [link.autofocus: IDL set to null]
+    expected: FAIL
+
+  [link.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [title.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [title.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [style.autofocus: IDL set to null]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [link.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [head.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [link.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [meta.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [title.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [title.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [base.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [style.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [base.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [style.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [base.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [head.autofocus: IDL set to null]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [title.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [base.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [link.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [head.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [meta.autofocus: IDL set to false]
+    expected: FAIL
+
+  [meta.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [link.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/dom/reflection-misc.html.ini b/tests/wpt/metadata/html/dom/reflection-misc.html.ini
index 31a1c46c69b..76ab532894d 100644
--- a/tests/wpt/metadata/html/dom/reflection-misc.html.ini
+++ b/tests/wpt/metadata/html/dom/reflection-misc.html.ini
@@ -19884,3 +19884,1371 @@
   [script.accessKey: setAttribute() to ".5"]
     expected: FAIL
 
+  [script.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [details.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [template.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [script.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [template.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [details.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [details.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [details.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [script.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [del.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [script.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to false]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to null]
+    expected: FAIL
+
+  [template.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [details.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [html.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [template.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [details.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [script.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [html.autofocus: IDL set to null]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to false]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [details.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [html.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [html.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [slot.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [slot.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [script.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [del.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [html.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [details.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [script.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [undefinedelement.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [template.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [script.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [html.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to false]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [template.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to null]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [details.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [dialog.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dialog.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [del.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [noscript.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [html.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to false]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [script.autofocus: IDL set to false]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [script.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [template.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [details.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [html.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [details.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [script.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [html.autofocus: IDL set to false]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [details.autofocus: IDL set to null]
+    expected: FAIL
+
+  [script.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [template.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [script.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [html.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [noscript.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [template.autofocus: IDL set to false]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to false]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to null]
+    expected: FAIL
+
+  [del.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [html.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [del.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [script.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [ins.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to null]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to null]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [template.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to null]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [template.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [template.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [template.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to false]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [script.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to false]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to null]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [script.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [details.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [details.autofocus: IDL set to false]
+    expected: FAIL
+
+  [template.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [details.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [template.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to false]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [ins.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [details.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [details.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [script.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [html.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [script.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [template.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [template.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [template.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [html.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [details.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [undefinedelement.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [summary.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [del.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [menu.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [template.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [html.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [html.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [summary.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [noscript.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [dialog.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [slot.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [summary.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [ins.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [del.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [details.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [html.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [slot.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [menu.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [html.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [undefinedelement.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [menu.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [menu.autofocus: IDL set to null]
+    expected: FAIL
+
+  [html.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [details.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [dialog.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [script.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [ins.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [template.autofocus: IDL set to null]
+    expected: FAIL
+
+  [noscript.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [script.autofocus: IDL set to null]
+    expected: FAIL
+
+  [html.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [del.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [html.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [script.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [summary.autofocus: typeof IDL attribute]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/dom/reflection-obsolete.html.ini b/tests/wpt/metadata/html/dom/reflection-obsolete.html.ini
index d8452f8a8b6..02209ac6791 100644
--- a/tests/wpt/metadata/html/dom/reflection-obsolete.html.ini
+++ b/tests/wpt/metadata/html/dom/reflection-obsolete.html.ini
@@ -17382,3 +17382,573 @@
   [frame.src: IDL set to "+100"]
     expected: FAIL
 
+  [frameset.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to null]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [font.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to null]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [font.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [font.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [font.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [marquee.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [font.autofocus: IDL set to null]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [font.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [font.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [font.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [font.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to null]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [frameset.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to false]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [frameset.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to false]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [dir.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [font.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [frame.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [font.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [marquee.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [font.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to null]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [frame.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [dir.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [font.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to false]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [font.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [font.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [font.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [font.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [font.autofocus: IDL set to false]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [marquee.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [font.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [frameset.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to false]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [frameset.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [dir.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [frame.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [frame.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [dir.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [marquee.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [font.autofocus: setAttribute() to 7]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/dom/reflection-sections.html.ini b/tests/wpt/metadata/html/dom/reflection-sections.html.ini
index a80e74f4dfa..e63285067e5 100644
--- a/tests/wpt/metadata/html/dom/reflection-sections.html.ini
+++ b/tests/wpt/metadata/html/dom/reflection-sections.html.ini
@@ -21990,3 +21990,1713 @@
   [body.link: IDL set to "+100"]
     expected: FAIL
 
+  [h3.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [section.autofocus: IDL set to null]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [header.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [article.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [header.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [h6.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [address.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [body.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [h6.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [section.autofocus: IDL set to false]
+    expected: FAIL
+
+  [address.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to null]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to null]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [header.autofocus: IDL set to null]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [header.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [body.autofocus: IDL set to false]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [h1.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [article.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to false]
+    expected: FAIL
+
+  [body.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to null]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [article.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [article.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [body.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [h2.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [section.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to false]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [aside.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [body.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [article.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [h4.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [section.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [body.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [article.autofocus: IDL set to false]
+    expected: FAIL
+
+  [header.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to null]
+    expected: FAIL
+
+  [aside.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [address.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [body.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [article.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [section.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [body.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [section.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [section.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to false]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [article.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [footer.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [h1.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [section.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [section.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [section.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [section.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [address.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [article.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [body.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [header.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [article.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [address.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [article.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [body.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [nav.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [header.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [body.autofocus: IDL set to null]
+    expected: FAIL
+
+  [article.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [body.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [h5.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [header.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [section.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [address.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [section.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [address.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to null]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [hgroup.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [header.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [article.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [nav.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [section.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [body.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [header.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to null]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [article.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to false]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [header.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to null]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to null]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [body.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [article.autofocus: IDL set to null]
+    expected: FAIL
+
+  [article.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [address.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [article.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [address.autofocus: IDL set to null]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [section.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [h3.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [body.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [header.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [address.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [h3.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to false]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [address.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [header.autofocus: IDL set to false]
+    expected: FAIL
+
+  [address.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [header.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to false]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [address.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [header.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [address.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [address.autofocus: IDL set to false]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [footer.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [h3.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [header.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [address.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [section.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [address.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to false]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [section.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [h4.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [article.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [section.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to false]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [header.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [address.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [body.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [footer.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [h2.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [h2.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to false]
+    expected: FAIL
+
+  [body.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [h6.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [address.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [header.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [h1.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [hgroup.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [body.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [aside.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [address.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to null]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to null]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [article.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [section.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [h4.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [article.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [nav.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [body.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [h3.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [hgroup.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [h5.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [h5.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [section.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [h2.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [h6.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [h1.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [aside.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [body.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [header.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [header.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [h5.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [h4.autofocus: IDL set to false]
+    expected: FAIL
+
+  [footer.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [nav.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/dom/reflection-tabular.html.ini b/tests/wpt/metadata/html/dom/reflection-tabular.html.ini
index 552748c0c10..286cd7db81b 100644
--- a/tests/wpt/metadata/html/dom/reflection-tabular.html.ini
+++ b/tests/wpt/metadata/html/dom/reflection-tabular.html.ini
@@ -27585,3 +27585,1143 @@
   [col.dir: setAttribute() to ".5"]
     expected: FAIL
 
+  [table.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [col.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [th.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to null]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [td.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [td.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [col.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [td.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [table.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [th.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to null]
+    expected: FAIL
+
+  [col.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [th.autofocus: IDL set to null]
+    expected: FAIL
+
+  [td.autofocus: IDL set to null]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [table.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [th.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [td.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [th.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [col.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [th.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [th.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [table.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [caption.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [th.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [td.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [thead.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [th.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [colgroup.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [table.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [td.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [th.autofocus: IDL set to false]
+    expected: FAIL
+
+  [table.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to null]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [td.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [col.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to false]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [table.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [th.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [col.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [table.autofocus: IDL set to null]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [tr.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [table.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [th.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [table.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [tbody.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [col.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [col.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [th.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [td.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [table.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [col.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [col.autofocus: IDL set to null]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [table.autofocus: IDL set to false]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [table.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [col.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [th.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [td.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [th.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [table.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to false]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [col.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [caption.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [td.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [td.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [tr.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [tbody.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to false]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [col.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [table.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to false]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [table.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to false]
+    expected: FAIL
+
+  [td.autofocus: IDL set to false]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to false]
+    expected: FAIL
+
+  [td.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [col.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [tfoot.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [td.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [table.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [table.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [tfoot.autofocus: IDL set to null]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [col.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [th.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [th.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [col.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [th.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [col.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [td.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [th.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [td.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [colgroup.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [col.autofocus: IDL set to false]
+    expected: FAIL
+
+  [caption.autofocus: IDL set to null]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to null]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [table.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [tr.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [table.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [col.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [thead.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [colgroup.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [tbody.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [tr.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [thead.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [caption.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [td.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [col.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [td.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [tfoot.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [tbody.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [thead.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [th.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [td.autofocus: IDL set to "5%"]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/dom/reflection-text.html.ini b/tests/wpt/metadata/html/dom/reflection-text.html.ini
index b448dae635c..25b5ae1ee58 100644
--- a/tests/wpt/metadata/html/dom/reflection-text.html.ini
+++ b/tests/wpt/metadata/html/dom/reflection-text.html.ini
@@ -36453,3 +36453,3309 @@
   [a.dir: setAttribute() to ".5"]
     expected: FAIL
 
+  [var.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to null]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [s.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [time.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [q.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [br.autofocus: IDL set to false]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [a.autofocus: IDL set to false]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [cite.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [s.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to false]
+    expected: FAIL
+
+  [s.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [data.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [em.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [span.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to false]
+    expected: FAIL
+
+  [s.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [data.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [a.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [small.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [em.autofocus: IDL set to null]
+    expected: FAIL
+
+  [b.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [i.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [code.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [u.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [var.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [em.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [span.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [q.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [code.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [i.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [i.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [s.autofocus: IDL set to false]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [u.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [br.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [u.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [span.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [time.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [b.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [bdi.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to false]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [span.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [em.autofocus: IDL set to false]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to false]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [b.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [time.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to null]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [time.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [s.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [time.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [b.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [i.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to false]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [b.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [var.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [b.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [i.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [u.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to false]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [s.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [data.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [s.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [i.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [u.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [time.autofocus: IDL set to false]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [code.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [i.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [a.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [span.autofocus: IDL set to false]
+    expected: FAIL
+
+  [a.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [em.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [a.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [a.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [var.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [q.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [b.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [br.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [q.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [var.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [time.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to false]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [data.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [small.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [a.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to false]
+    expected: FAIL
+
+  [br.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [q.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to null]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to false]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [a.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [a.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to null]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [em.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [sup.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [q.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [var.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [small.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to false]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [span.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [u.autofocus: IDL set to null]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [bdo.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [i.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [em.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [var.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [br.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to false]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [q.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [q.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [data.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [a.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [s.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [em.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [em.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [var.autofocus: IDL set to false]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [br.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [u.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [strong.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [var.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [u.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [var.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [span.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [cite.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [b.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [strong.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [i.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [var.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [time.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to null]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to null]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [small.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [q.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [em.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to false]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [span.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [br.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to false]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [b.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [u.autofocus: IDL set to false]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [span.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to null]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [time.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [br.autofocus: IDL set to null]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [em.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [sup.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [i.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [b.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [u.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [u.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [s.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [em.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [small.autofocus: IDL set to null]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [time.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [br.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [em.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [a.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [span.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [u.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [abbr.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to false]
+    expected: FAIL
+
+  [span.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [var.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [q.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [i.autofocus: IDL set to null]
+    expected: FAIL
+
+  [kbd.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [span.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [dfn.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [small.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [data.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [small.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [data.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [em.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to null]
+    expected: FAIL
+
+  [b.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [q.autofocus: IDL set to null]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [b.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [br.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [a.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [b.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [span.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [wbr.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [u.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [s.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [small.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [data.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [s.autofocus: IDL set to null]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [var.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [q.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [code.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [a.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [span.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [u.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [small.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [mark.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [i.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [data.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [samp.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [s.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to null]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [var.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [small.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [code.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [a.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [data.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [time.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [bdi.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [var.autofocus: IDL set to null]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [a.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [b.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [i.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [s.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [rp.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [var.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [em.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [time.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [s.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to false]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [small.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [mark.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [small.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [data.autofocus: IDL set to false]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to null]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [b.autofocus: IDL set to false]
+    expected: FAIL
+
+  [data.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [i.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [br.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [span.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [q.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [br.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [var.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [abbr.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to null]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [data.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [small.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [u.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [time.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [code.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [data.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [time.autofocus: IDL set to null]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [b.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to null]
+    expected: FAIL
+
+  [u.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [sub.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [small.autofocus: IDL set to false]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [br.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [small.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [rt.autofocus: IDL set to null]
+    expected: FAIL
+
+  [br.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [samp.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [dfn.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [br.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [time.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [rt.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [b.autofocus: IDL set to null]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [br.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [a.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [i.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [sub.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [data.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [i.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [time.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [span.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [s.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [u.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to null]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [var.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [s.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [span.autofocus: IDL set to null]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [u.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [em.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [wbr.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [small.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [ruby.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [br.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to null]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [a.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [strong.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [small.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [b.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [small.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [small.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [i.autofocus: IDL set to false]
+    expected: FAIL
+
+  [data.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [data.autofocus: IDL set to null]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to 1.5]
+    expected: FAIL
+
+  [bdo.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [data.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to "5%"]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [span.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [em.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [rt.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [sub.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [span.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [i.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [span.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [q.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [kbd.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to "autofocus"]
+    expected: FAIL
+
+  [u.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [bdo.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [kbd.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to undefined]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [sup.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [br.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [q.autofocus: IDL set to object "test-toString"]
+    expected: FAIL
+
+  [small.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [rp.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [br.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [data.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [ruby.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to -Infinity]
+    expected: FAIL
+
+  [q.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [a.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [s.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [em.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [bdi.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [b.autofocus: IDL set to "\\0"]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to 7]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [data.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [wbr.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to " foo "]
+    expected: FAIL
+
+  [b.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [s.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [code.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [code.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [cite.autofocus: IDL set to object "[object Object\]"]
+    expected: FAIL
+
+  [samp.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to ""]
+    expected: FAIL
+
+  [rt.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [rp.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [u.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [br.autofocus: IDL set to undefined]
+    expected: FAIL
+
+  [abbr.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [q.autofocus: IDL set to false]
+    expected: FAIL
+
+  [kbd.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to false]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [code.autofocus: IDL set to null]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [cite.autofocus: setAttribute() to true]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [i.autofocus: IDL set to "+100"]
+    expected: FAIL
+
+  [time.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [ruby.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [abbr.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [time.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [em.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [rp.autofocus: IDL set to NaN]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to object "test-toString"]
+    expected: FAIL
+
+  [em.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to 1.5]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to false]
+    expected: FAIL
+
+  [var.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [q.autofocus: setAttribute() to "+100"]
+    expected: FAIL
+
+  [samp.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [sub.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to object "test-valueOf"]
+    expected: FAIL
+
+  [dfn.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [q.autofocus: typeof IDL attribute]
+    expected: FAIL
+
+  [s.autofocus: setAttribute() to "\\0"]
+    expected: FAIL
+
+  [ruby.autofocus: IDL set to ".5"]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
+  [bdo.autofocus: IDL set to " foo "]
+    expected: FAIL
+
+  [time.autofocus: IDL set to Infinity]
+    expected: FAIL
+
+  [mark.autofocus: setAttribute() to null]
+    expected: FAIL
+
+  [mark.autofocus: IDL set to "5%"]
+    expected: FAIL
+
+  [q.autofocus: IDL get with DOM attribute unset]
+    expected: FAIL
+
+  [dfn.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [strong.autofocus: IDL set to 7]
+    expected: FAIL
+
+  [time.autofocus: setAttribute() to object "test-valueOf"]
+    expected: FAIL
+
+  [i.autofocus: setAttribute() to NaN]
+    expected: FAIL
+
+  [sup.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to ""]
+    expected: FAIL
+
+  [var.autofocus: setAttribute() to Infinity]
+    expected: FAIL
+
+  [a.autofocus: setAttribute() to object "[object Object\]"]
+    expected: FAIL
+
+  [wbr.autofocus: setAttribute() to ".5"]
+    expected: FAIL
+
+  [a.autofocus: IDL set to null]
+    expected: FAIL
+
+  [bdi.autofocus: IDL set to -Infinity]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini b/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini
deleted file mode 100644
index 9e522297c94..00000000000
--- a/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini
+++ /dev/null
@@ -1,7 +0,0 @@
-[toggleEvent.html]
-  [Calling open twice on 'details' fires only one toggle event]
-    expected: FAIL
-
-  [Setting open=true to opened 'details' element should not fire a toggle event at the 'details' element]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
deleted file mode 100644
index 178680e5d14..00000000000
--- a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[script-onerror-insertion-point-2.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/ignore-opens-during-unload.window.js.ini b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/ignore-opens-during-unload.window.js.ini
index 910c88d3e81..69bd952d756 100644
--- a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/ignore-opens-during-unload.window.js.ini
+++ b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/ignore-opens-during-unload.window.js.ini
@@ -1,5 +1,5 @@
 [ignore-opens-during-unload.window.html]
-  expected: CRASH
+  expected: TIMEOUT
   [ignore-opens-during-unload]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
index 66bd350083b..a56bad443a2 100644
--- a/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-analysernode-interface/realtimeanalyser-fft-scaling.html.ini
@@ -1,4 +1,5 @@
 [realtimeanalyser-fft-scaling.html]
+  expected: TIMEOUT
   [X 2048-point FFT peak position is not equal to 64. Got 0.]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/websockets/Create-Secure-extensions-empty.any.js.ini b/tests/wpt/metadata/websockets/Create-Secure-extensions-empty.any.js.ini
index 41e56e4a392..0d25673bf8f 100644
--- a/tests/wpt/metadata/websockets/Create-Secure-extensions-empty.any.js.ini
+++ b/tests/wpt/metadata/websockets/Create-Secure-extensions-empty.any.js.ini
@@ -1,5 +1,4 @@
 [Create-Secure-extensions-empty.any.html]
-  expected: TIMEOUT
   [W3C WebSocket API - Create Secure WebSocket - wsocket.extensions should be set to '' after connection is established - Connection should be opened]
     expected: FAIL
 
@@ -9,12 +8,8 @@
   [Create Secure WebSocket - wsocket.extensions should be set to '' after connection is established - Connection should be opened]
     expected: FAIL
 
-  [Create Secure WebSocket - wsocket.extensions should be set to '' after connection is established - Connection should be closed]
-    expected: NOTRUN
-
 
 [Create-Secure-extensions-empty.any.worker.html]
-  expected: TIMEOUT
   [W3C WebSocket API - Create Secure WebSocket - wsocket.extensions should be set to '' after connection is established - Connection should be opened]
     expected: FAIL
 
@@ -24,6 +19,3 @@
   [Create Secure WebSocket - wsocket.extensions should be set to '' after connection is established - Connection should be opened]
     expected: FAIL
 
-  [Create Secure WebSocket - wsocket.extensions should be set to '' after connection is established - Connection should be closed]
-    expected: NOTRUN
-
diff --git a/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini b/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
new file mode 100644
index 00000000000..80f9a4f15b8
--- /dev/null
+++ b/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
@@ -0,0 +1,2 @@
+[Worker-constructor.html]
+  expected: ERROR
diff --git a/tests/wpt/mozilla/meta/css/transition_calc_implicit.html.ini b/tests/wpt/mozilla/meta/css/transition_calc_implicit.html.ini
new file mode 100644
index 00000000000..dbea4f293ad
--- /dev/null
+++ b/tests/wpt/mozilla/meta/css/transition_calc_implicit.html.ini
@@ -0,0 +1,2 @@
+[transition_calc_implicit.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/web-platform-tests/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html b/tests/wpt/web-platform-tests/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html
new file mode 100644
index 00000000000..54856e72901
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<link rel="help" href="https://www.w3.org/TR/CSS22/visuren.html#propdef-left">
+<link rel="help" href="https://www.w3.org/TR/CSS22/visuren.html#relative-positioning">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=908083">
+<p>There should be no red, and no scrollbar.</p>
+<div id="container" style="overflow:auto; width:500px; background:red;">
+  <div style="padding-right:90%; background:yellow;">
+    <div style="position:relative; left:900%; width:50px; height:50px; background:cyan;">
+    </div>
+  </div>
+</div>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+  container.scrollLeft = 123456;
+  test(()=> {
+      assert_equals(container.scrollLeft, 0);
+  }, "Left percentage resolved correctly for overflow contribution");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html b/tests/wpt/web-platform-tests/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html
new file mode 100644
index 00000000000..f4e7e2a839f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<link rel="help" href="https://www.w3.org/TR/CSS22/visuren.html#propdef-top">
+<link rel="help" href="https://www.w3.org/TR/CSS22/visuren.html#relative-positioning">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=908083">
+<p>There should be a green square below.</p>
+<div style="position:relative; width:200px; height:200px;">
+  <div id="container" style="overflow:hidden; position:absolute; top:0; left:0; bottom:0; right:0;">
+    <div style="position:relative; top:100%; width:100px; height:100px; background:green;"></div>
+  </div>
+</div>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+  container.scrollTop = 123456;
+  test(()=> {
+      assert_equals(container.scrollTop, 100);
+  }, "Top percentage resolved correctly for overflow contribution");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001-ref.html b/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001-ref.html
new file mode 100644
index 00000000000..df72a88262b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001-ref.html
@@ -0,0 +1,68 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: baseline align a display:block item with a display:grid item</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: 20px repeat(4, auto) 30px / 30px repeat(4, auto) 20px;
+  place-content: start;
+  place-items: baseline start;
+  border: 1px solid;
+  text-decoration: underline blue;
+}
+
+.inner-grid {
+  background: lightgrey;
+  grid-column: 2;
+  grid-row: 3;
+  min-width: 10px;
+  min-height: 0;
+  border: 0 solid lightblue;
+  border-top-width: 10px;
+  border-bottom-width: 40px;
+  padding-bottom: 20px;
+}
+
+x, z {
+  display: block;
+  min-width: 40px;
+  min-height: 10px;
+  font-size: 10em;
+  background: silver;
+}
+z {
+  width: 40px;
+  height: 10px;
+}
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<y style="grid-area:3/1">A&nbsp;</y>
+<div class="inner-grid">
+  <x>&nbsp;A</x><z></z>
+</div>
+</div>
+
+<div class="grid" style="align-items:last baseline">
+<y style="grid-area:3/1">A&nbsp;</y>
+<div class="inner-grid">
+  <z></z><x>&nbsp;A</x>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001.html b/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001.html
new file mode 100644
index 00000000000..19a26d8d6aa
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-001.html
@@ -0,0 +1,69 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: baseline align a display:block item with a display:grid item</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid/#grid-baselines">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="grid-self-alignment-baseline-with-grid-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: 20px repeat(4, auto) 30px / 30px repeat(4, auto) 20px;
+  place-content: start;
+  place-items: baseline start;
+  border: 1px solid;
+  text-decoration: underline blue;
+}
+
+.inner-grid {
+  display: grid;
+  grid: auto auto / auto;
+  background: lightgrey;
+  grid-column: 2;
+  grid-row: 3;
+  min-width: 10px;
+  min-height: 0;
+  border: 0 solid lightblue;
+  border-top-width: 10px;
+  border-bottom-width: 40px;
+  place-content: inherit;
+  place-items: inherit;
+  padding-bottom: 20px;
+}
+
+x {
+  min-width: 40px;
+  min-height: 10px;
+  font-size: 10em;
+  background: silver;
+}
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<y style="grid-area:3/1">A&nbsp;</y>
+<div class="inner-grid">
+  <x>&nbsp;A</x><x style="grid-row:2"></x>
+</div>
+</div>
+
+<div class="grid" style="align-items:last baseline">
+<y style="grid-area:3/1">A&nbsp;</y>
+<div class="inner-grid">
+  <x></x><x style="grid-row:2">&nbsp;A</x>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-002.html b/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-002.html
new file mode 100644
index 00000000000..a426f879c6e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-002.html
@@ -0,0 +1,69 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: baseline align a display:block item with a display:grid item with spanned item</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid/#grid-baselines">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="grid-self-alignment-baseline-with-grid-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: 20px repeat(4, auto) 30px / 30px repeat(4, auto) 20px;
+  place-content: start;
+  place-items: baseline start;
+  border: 1px solid;
+  text-decoration: underline blue;
+}
+
+.inner-grid {
+  display: grid;
+  grid: auto auto / auto;
+  background: lightgrey;
+  grid-column: 2;
+  grid-row: 3;
+  min-width: 10px;
+  min-height: 0;
+  border: 0 solid lightblue;
+  border-top-width: 10px;
+  border-bottom-width: 40px;
+  place-content: inherit;
+  place-items: inherit;
+  padding-bottom: 20px;
+}
+
+x {
+  min-width: 40px;
+  min-height: 10px;
+  font-size: 10em;
+  background: silver;
+}
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<y style="grid-area:3/1">A&nbsp;</y>
+<div class="inner-grid">
+  <x style="grid-row:1/span 3">&nbsp;A</x><x style="grid-column:1"></x>
+</div>
+</div>
+
+<div class="grid" style="align-items:last baseline">
+<y style="grid-area:3/1">A&nbsp;</y>
+<div class="inner-grid">
+  <x></x><x style="grid-row:2/span 3">&nbsp;A</x>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-003.html b/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-003.html
new file mode 100644
index 00000000000..ed3bf30317f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-003.html
@@ -0,0 +1,69 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: baseline align a display:block item with a display:grid spanned item</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid/#grid-baselines">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="grid-self-alignment-baseline-with-grid-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: 20px repeat(4, auto) 30px / 30px repeat(4, auto) 20px;
+  place-content: start;
+  place-items: baseline start;
+  border: 1px solid;
+  text-decoration: underline blue;
+}
+
+.inner-grid {
+  display: grid;
+  grid: auto auto / auto;
+  background: lightgrey;
+  grid-column: 2;
+  grid-row: 2 / span 2;
+  min-width: 10px;
+  min-height: 0;
+  border: 0 solid lightblue;
+  border-top-width: 10px;
+  border-bottom-width: 40px;
+  place-content: inherit;
+  place-items: inherit;
+  padding-bottom: 20px;
+}
+
+x {
+  min-width: 40px;
+  min-height: 10px;
+  font-size: 10em;
+  background: silver;
+}
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<y style="grid-area:2/1">A&nbsp;</y>
+<div class="inner-grid">
+  <x>&nbsp;A</x><x style="grid-row:2"></x>
+</div>
+</div>
+
+<div class="grid" style="align-items:last baseline">
+<y style="grid-area:3/1">A&nbsp;</y>
+<div class="inner-grid">
+  <x></x><x style="grid-row:2">&nbsp;A</x>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-004.html b/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-004.html
new file mode 100644
index 00000000000..5e20b88d356
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-with-grid-004.html
@@ -0,0 +1,69 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: baseline align a display:block item with a display:grid spanned item with spanned item</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid/#grid-baselines">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="grid-self-alignment-baseline-with-grid-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: 20px repeat(4, auto) 30px / 30px repeat(4, auto) 20px;
+  place-content: start;
+  place-items: baseline start;
+  border: 1px solid;
+  text-decoration: underline blue;
+}
+
+.inner-grid {
+  display: grid;
+  grid: auto auto / auto;
+  background: lightgrey;
+  grid-column: 2;
+  grid-row: 2 / span 2;
+  min-width: 10px;
+  min-height: 0;
+  border: 0 solid lightblue;
+  border-top-width: 10px;
+  border-bottom-width: 40px;
+  place-content: inherit;
+  place-items: inherit;
+  padding-bottom: 20px;
+}
+
+x {
+  min-width: 40px;
+  min-height: 10px;
+  font-size: 10em;
+  background: silver;
+}
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<y style="grid-area:2/1">A&nbsp;</y>
+<div class="inner-grid">
+  <x style="grid-row:1/span 3">&nbsp;A</x><x style="grid-row:4"></x>
+</div>
+</div>
+
+<div class="grid" style="align-items:last baseline">
+<y style="grid-area:3/1">A&nbsp;</y>
+<div class="inner-grid">
+  <x></x><x style="grid-row:2/span 3">&nbsp;A</x>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-001-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-001-ref.html
new file mode 100644
index 00000000000..fe316d5d3bf
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-001-ref.html
@@ -0,0 +1,123 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: grid-aligned abs.pos. inside subgrid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: auto / repeat(10, 30px) 100px;
+  place-content: start;
+  border: 1px solid;
+  width: 500px;
+  position: relative;
+  padding: 4px 3px 1px 10px;
+}
+
+.subgrid {
+  display: grid;
+  grid: 0 / repeat(10, 30px) 100px;
+  background: lightgrey;
+  grid-column: 2 / span 8;
+  min-width:0;
+  min-height:0;
+}
+
+i {
+  grid-row: 1;
+  counter-increment: i;
+  background: pink;
+}
+i::before { content: counter(i, decimal); }
+
+x {
+  position: absolute;
+  top:0; bottom:0; left:0; right:0;
+  background: silver;
+}
+
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3/5">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3/-1">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:auto/3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:auto/1">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3/5">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3/-1">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:auto/3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:auto/1">x</x>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-001.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-001.html
new file mode 100644
index 00000000000..e524ec2d767
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-001.html
@@ -0,0 +1,129 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: grid-aligned abs.pos. inside subgrid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="abs-pos-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: repeat(4, auto) / repeat(10, 30px);
+  grid-template-areas: ". . . . . . . . . . .";
+  place-content: start;
+  border: 1px solid;
+  width: 500px;
+  grid-auto-columns: 100px;
+  grid-auto-rows: 100px;
+  position: relative;
+  padding: 4px 3px 1px 10px;
+}
+
+.subgrid {
+  display: grid;
+  grid: auto / subgrid;
+  background: lightgrey;
+  grid-column: 2 / span 8;
+  grid-row: 2 / span 2;
+  min-width:0;
+  min-height:0;
+}
+
+i {
+  grid-row: 1;
+  counter-increment: i;
+  background: pink;
+}
+i::before { content: counter(i, decimal); }
+
+x {
+  position: absolute;
+  top:0; bottom:0; left:0; right:0;
+  background: silver;
+}
+
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3/5">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3/-1">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:auto/3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:auto/1">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3/5">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3/-1">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:auto/3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:auto/1">x</x>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-002-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-002-ref.html
new file mode 100644
index 00000000000..69e071c758b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-002-ref.html
@@ -0,0 +1,125 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: grid-aligned abs.pos. inside rel.pos. subgrid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: repeat(4, auto) / repeat(10, 30px) 100px;
+  place-content: start;
+  border: 1px solid;
+  width: 500px;
+  padding: 1px 2px;
+}
+
+.subgrid {
+  position: relative;
+  display: grid;
+  grid: auto / 27px repeat(7, 30px);
+  grid-column: 2 / span 8;
+  grid-row: 2 / span 2;
+  padding: 4px 0 1px 0;
+  border: 3px solid black;
+  min-height: 1em;
+  background: yellow;
+}
+
+i {
+  grid-row: 1;
+  counter-increment: i;
+  background: pink;
+}
+i::before { content: counter(i, decimal); }
+
+x {
+  position: absolute;
+  top:0; bottom:0; left:0; right:0;
+  background: silver;
+}
+
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3/5">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3; right:33px">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:auto/3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:auto/1; right:-10px">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3/5">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3/-1; left:13px">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:auto/3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:auto/1; left:-33px">x</x>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-002.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-002.html
new file mode 100644
index 00000000000..5d6833555ed
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/abs-pos-002.html
@@ -0,0 +1,131 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: grid-aligned abs.pos. inside rel.pos. subgrid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="abs-pos-002-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: repeat(4, auto) / repeat(10, 30px);
+  grid-template-areas: ". . . . . . . . . . .";
+  place-content: start;
+  border: 1px solid;
+  width: 500px;
+  grid-auto-columns: 100px;
+  grid-auto-rows: 100px;
+  padding: 1px 2px;
+}
+
+.subgrid {
+  position: relative;
+  display: grid;
+  grid: auto / subgrid;
+  grid-column: 2 / span 8;
+  grid-row: 2 / span 2;
+  padding: 4px 33px 1px 10px;
+  border: 3px solid black;
+  min-width: 0;
+  min-height: 1em;
+  background: yellow;
+}
+
+i {
+  grid-row: 1;
+  counter-increment: i;
+  background: pink;
+}
+i::before { content: counter(i, decimal); }
+
+x {
+  position: absolute;
+  top:0; bottom:0; left:0; right:0;
+  background: silver;
+}
+
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3/5">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3/-1">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:auto/3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid">
+  <x style="grid-column:auto/1">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3/5">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3/-1">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:auto/3">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr">
+  <x style="grid-column:auto/1">x</x>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/baseline-001-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/baseline-001-ref.html
new file mode 100644
index 00000000000..c98740b4e5a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/baseline-001-ref.html
@@ -0,0 +1,65 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: baseline-aligned subgrid item</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: 20px repeat(4, auto) 30px / 30px repeat(4, auto) 20px;
+  place-content: start;
+  place-items: baseline start;
+  border: 1px solid;
+  text-decoration: underline blue;
+}
+
+.subgrid {
+  background: lightgrey;
+  grid-column: 2 / span 4;
+  grid-row: 3 / span 2;
+  min-width: 10px;
+  min-height: 0;
+  background: yellow;
+}
+
+x, z {
+  display: block;
+  min-width: 20px;
+  min-height: 10px;
+  font-size: 8em;
+  background: silver;
+}
+z {
+  width: 20px;
+  height: 10px;
+}
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<y style="grid-area:3/1">A&nbsp;</y>
+<div class="subgrid">
+  <z></z><x>&nbsp;A</x>
+</div>
+</div>
+
+<div class="grid" style="align-items: last baseline">
+<y style="grid-area:4/1">A&nbsp;</y>
+<div class="subgrid">
+  <z></z><x>&nbsp;A</x>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/baseline-001.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/baseline-001.html
new file mode 100644
index 00000000000..995b1a8d2ae
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/baseline-001.html
@@ -0,0 +1,66 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: baseline-aligned subgrid item</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="baseline-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: 20px repeat(4, auto) 30px / 30px repeat(4, auto) 20px;
+  place-content: start;
+  place-items: baseline start;
+  border: 1px solid;
+  text-decoration: underline blue;
+}
+
+.subgrid {
+  display: grid;
+  grid: subgrid / auto;
+  background: lightgrey;
+  grid-column: 2 / span 4;
+  grid-row: 3 / span 2;
+  min-width: 10px;
+  min-height: 0;
+  background: yellow;
+  place-content: inherit;
+  place-items: inherit;
+}
+
+x {
+  min-width: 20px;
+  min-height: 10px;
+  font-size: 8em;
+  background: silver;
+}
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<y style="grid-area:4/1">A&nbsp;</y>
+<div class="subgrid">
+  <x style="grid-row:2">&nbsp;A</x><x></x>
+</div>
+</div>
+
+<div class="grid" style="align-items: last baseline">
+<y style="grid-area:4/1">A&nbsp;</y>
+<div class="subgrid">
+  <x></x><x style="grid-row:2">&nbsp;A</x>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-001-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-001-ref.html
new file mode 100644
index 00000000000..e7909fc2064
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-001-ref.html
@@ -0,0 +1,82 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrid with definite grid-gap in both axes</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 monospace; padding:0; margin:0;
+}
+
+  .wrapper {
+    display: inline-grid;
+    gap: 20px 10px;
+    grid-template-columns: repeat(4,auto);
+    grid-template-rows: repeat(3,auto);
+    background-color: #fff;
+    color: #444;
+  }
+
+  .box {
+    background-color: #444;
+    color: #fff;
+    padding: 20px;
+  }
+
+  .box .box {
+    background-color: #ccc;
+    color: #444;
+  }
+
+  .a {
+    grid-area: 1 / 1 / 2 / 3;
+  }
+
+  .b {
+    grid-area: 1/4;
+  }
+
+  .c {
+    grid-column: 1;
+    grid-row: 2 / 4;
+    margin-right: 10px;
+  }
+
+  .d {
+    grid-column: 2 / 5;
+    grid-row: 2 / 4;
+    display: grid;
+    row-gap: 100px;
+    column-gap: 10px;
+    grid: repeat(2,auto) / repeat(3,auto);
+  }
+
+  .e {
+    grid-area: 1/2; visibility:hidden; margin-left:15px;
+  }
+  .f {
+    grid-area: 1/3; visibility:hidden; margin-left:10px;
+  }
+  .g {
+    grid-area: 1/4; visibility:hidden; margin-left:15px;
+  }
+</style>
+</head>
+<body>
+
+<div class="wrapper">
+  <div class="box a">A</div><div class="box e">E</div><div class="box f">F</div><div class="box g">G</div>
+  <div class="box b">B</div>
+  <div class="box c">C</div>
+  <div class="box d">
+    <div class="box">E</div>
+    <div class="box">F</div>
+    <div class="box">G</div>
+    <div class="box h">H</div>
+    <div class="box i">I</div>
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-001.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-001.html
new file mode 100644
index 00000000000..0bc8eed4d8e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-001.html
@@ -0,0 +1,73 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid with definite grid-gap in both axes</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="grid-gap-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 monospace; padding:0; margin:0;
+}
+
+  .wrapper {
+    display: inline-grid;
+    gap: 20px;
+    grid-template-columns:  repeat(4,auto);
+    grid-template-rows: repeat(3,auto);
+    background-color: #fff;
+    color: #444;
+  }
+
+  .box {
+    background-color: #444;
+    color: #fff;
+    padding: 20px;
+  }
+
+  .box .box {
+    background-color: #ccc;
+    color: #444;
+  }
+
+  .a {
+    grid-column: 1 / 3;
+  }
+
+  .b {
+    grid-column: 4;
+  }
+
+  .c {
+    grid-column: 1;
+    grid-row: 2 / 4;
+  }
+
+  .d {
+    grid-column: 2 / 5;
+    grid-row: 2 / 4;
+    display: grid;
+    row-gap: 100px;
+    column-gap: 10px;
+    grid: subgrid / subgrid;
+  }
+</style>
+</head>
+<body>
+
+<div class="wrapper">
+  <div class="box a">A</div>
+  <div class="box b">B</div>
+  <div class="box c">C</div>
+  <div class="box d">
+    <div class="box e">E</div>
+    <div class="box f">F</div>
+    <div class="box g">G</div>
+    <div class="box h">H</div>
+    <div class="box i">I</div>
+  </div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-002-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-002-ref.html
new file mode 100644
index 00000000000..db305246120
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-002-ref.html
@@ -0,0 +1,65 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid with border-bottom</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: repeat(4, auto) / repeat(5, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: subgrid / auto;
+  gap: 10px 20px;
+  background: lightgrey;
+  grid-column: 2 / span 5;
+  grid-row: 2 / span 5;
+  min-width:10px;
+  min-height:0;
+  background: yellow;
+}
+
+.subgrid > * { background: lightgrey; }
+
+x {
+  min-width:10px;
+  min-height:0px;
+}
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: magenta; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: grey; }
+
+e {
+  border: 0 solid lightblue;
+  border-bottom-width: 40px;
+  margin: -5px 0;
+}
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+<div class="subgrid">
+<c>c</c>
+<d>d</d>
+<e></e>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-002.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-002.html
new file mode 100644
index 00000000000..bd4b74924bd
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-002.html
@@ -0,0 +1,63 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid with border-bottom</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="grid-gap-002-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: repeat(4, auto) / repeat(5, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: subgrid / auto;
+  gap: 10px 20px;
+  background: lightgrey;
+  grid-column: 2 / span 5;
+  grid-row: 2 / span 5;
+  min-width:10px;
+  min-height:0;
+  border: 0 solid lightblue;
+  border-bottom-width: 40px;
+  background: yellow;
+}
+
+.subgrid > * { background: lightgrey; }
+
+x {
+  min-width:10px;
+  min-height:0px;
+}
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: magenta; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: grey; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+<div class="subgrid">
+<c>c</c>
+<d>d</d>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-003-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-003-ref.html
new file mode 100644
index 00000000000..44053f0505a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-003-ref.html
@@ -0,0 +1,68 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrid with border-bottom and percentage gap</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: 0 15px 15px 0 0 40px / repeat(5, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: repeat(4, auto) / auto auto;
+  gap: 3px 8px;
+  background: lightgrey;
+  grid-column: 2 / span 5;
+  grid-row: 2 / span 5;
+  background: grey;
+  width: 40px;
+  height: 30px;
+}
+
+.subgrid > * { background: lightgrey; }
+
+x {
+  min-width:10px;
+  min-height:0px;
+}
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: magenta; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: grey; }
+
+e { display:block; width: 20px; height:15px; background:black; }
+
+f {
+  grid-area: 4/2/span 1/span 5;
+  background: lightblue!important;
+  height: 40px;
+}
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<x style="grid-row:1; height:0"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+<f></f>
+<div class="subgrid">
+<c><e></e></c>
+<d><e></e></d>
+<c><e></e></c>
+<d><e></e></d>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-003.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-003.html
new file mode 100644
index 00000000000..f8ce8655cf9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-003.html
@@ -0,0 +1,66 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid with border-bottom and percentage gap</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="grid-gap-003-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: repeat(4, auto) / repeat(5, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: subgrid / auto auto;
+  gap: 20% 20%;
+  background: lightgrey;
+  grid-column: 2 / span 5;
+  grid-row: 2 / span 5;
+  min-width:10px;
+  min-height:0;
+  border: 0 solid lightblue;
+  border-bottom-width: 40px;
+  background: grey;
+}
+
+.subgrid > * { background: lightgrey; }
+
+x {
+  min-width:10px;
+  min-height:0px;
+}
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: magenta; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: grey; }
+
+e { display:block; width: 20px; height:15px; background:black; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+<div class="subgrid">
+<c><e></e></c>
+<d><e></e></d>
+<c><e></e></c>
+<d><e></e></d>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-004-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-004-ref.html
new file mode 100644
index 00000000000..b1819d1eaa8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-004-ref.html
@@ -0,0 +1,35 @@
+<!DOCTYPE HTML>
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: nested subgrid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+<style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display:inline-grid;
+  grid:100px auto/100px auto;
+  gap:20px;
+  border:3px solid;
+  background:yellow;
+}
+span { background:cyan; }
+span:nth-child(2n+1) { background:grey; }
+</style>
+</head>
+<body>
+
+<div class="grid">
+  <div style="display:grid; grid: 100px 1em / 100px 1em; gap:60px; grid-area:span 2/span 2">
+    <div style="display:grid; grid: 60px 1em / 100px; gap:100px; grid-row:span 2">
+      <span>a</span><span>b</span>
+    </div>
+    <span style="grid-area:2/2">c</span>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-004.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-004.html
new file mode 100644
index 00000000000..b46d22e1e39
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-004.html
@@ -0,0 +1,37 @@
+<!DOCTYPE HTML>
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: nested subgrid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="grid-gap-004-ref.html">
+<style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display:inline-grid;
+  grid:100px auto/100px auto;
+  gap:20px;
+  border:3px solid;
+  background:yellow;
+}
+span { background:cyan; }
+span:nth-child(2n+1) { background:grey; }
+</style>
+</head>
+<body>
+
+<div class="grid">
+  <div style="display:grid; grid:subgrid/subgrid; gap:100px; grid-area:span 2/span 2">
+    <div style="display:grid; grid:subgrid/100px; gap:100px; grid-row:span 2">
+      <span>a</span><span>b</span>
+    </div>
+    <span style="grid-area:2/2">c</span>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-005-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-005-ref.html
new file mode 100644
index 00000000000..88d8b34d935
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-005-ref.html
@@ -0,0 +1,25 @@
+<!DOCTYPE HTML>
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: nested subgrid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+<style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+span { background:cyan; }
+span:nth-child(2n+1) { background:grey; }
+</style>
+</head>
+<body>
+
+<div style="display:inline-grid; grid:100px/100px 0px; gap:100px; border:1px solid;">
+  <div style="display:grid; grid:100px/140px calc(40px); gap:20px; grid-column:span 2">
+    <span>a</span><span>b</span>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-005.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-005.html
new file mode 100644
index 00000000000..9afba90a529
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-005.html
@@ -0,0 +1,27 @@
+<!DOCTYPE HTML>
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: nested subgrid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="grid-gap-005-ref.html">
+<style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+span { background:cyan; }
+span:nth-child(2n+1) { background:grey; }
+</style>
+</head>
+<body>
+
+<div style="display:inline-grid; grid:100px/100px 0px; gap:100px; border:1px solid;">
+  <div style="display:grid; grid:100px/subgrid; gap:20px; grid-column:span 2">
+    <span>a</span><span>b</span>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-006-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-006-ref.html
new file mode 100644
index 00000000000..d94181ddc4f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-006-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE HTML>
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: nested subgrid, justify-content:space-around, overflowing</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+<style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+body { margin:200px; }
+span { background:cyan; }
+span:nth-child(2n+1) { background:grey; }
+</style>
+</head>
+<body>
+
+<div style="display:inline-grid; grid:100px/100px 10px 10px; gap:100px; border:1px solid; justify-content:center; width:50px">
+  <div style="display:grid; grid:100px/140px 50px; gap:20px; grid-column:span 2">
+    <span>a</span><span>b</span>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-006.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-006.html
new file mode 100644
index 00000000000..d79ced10c88
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-006.html
@@ -0,0 +1,28 @@
+<!DOCTYPE HTML>
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: nested subgrid, justify-content:space-around, overflowing</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="grid-gap-006-ref.html">
+<style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+body { margin:200px; }
+span { background:cyan; }
+span:nth-child(2n+1) { background:grey; }
+</style>
+</head>
+<body>
+
+<div style="display:inline-grid; grid:100px/100px 10px 10px; gap:100px; border:1px solid; justify-content:space-around; width:50px">
+  <div style="display:grid; grid:100px/subgrid; gap:20px; grid-column:span 2">
+    <span>a</span><span>b</span>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-007-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-007-ref.html
new file mode 100644
index 00000000000..84d4c002353
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-007-ref.html
@@ -0,0 +1,39 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: nested ortogonal writing-mode subgrids</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display:inline-grid;
+  grid:60px auto/100px auto;
+  gap:100px 60px;
+  border:3px solid;
+  background:pink;
+}
+span { background:grey; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.vrl { writing-mode: vertical-rl; direction:ltr; }
+</style>
+</head>
+<body>
+
+<div class="grid">
+  <span style="grid-area:1/1; background:lightgrey; width:60px; height:160px"></span>
+  <span style="grid-area:1/1">a</span>
+  <span style="grid-row:2; background:cyan">b</span>
+  <span style="grid-area:2/2" class="vrl">ccc</span>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-007.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-007.html
new file mode 100644
index 00000000000..5b94fe53023
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-007.html
@@ -0,0 +1,44 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: nested ortogonal writing-mode subgrids</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="grid-gap-007-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display:inline-grid;
+  grid:100px auto/100px auto;
+  gap:20px;
+  border:3px solid;
+  background:yellow;
+}
+span { background:cyan; }
+span:nth-child(2n+1) { background:grey; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.vrl { writing-mode: vertical-rl; direction:ltr; }
+</style>
+</head>
+<body>
+
+<div class="grid">
+  <div class="vrl" style="display:grid; grid:subgrid/subgrid; gap:100px; grid-area:span 2/span 2; background:pink">
+    <div class="hl" style="display:grid; grid:subgrid/100px; gap:100px; grid-column:span 2; background:lightgrey">
+      <span>a</span><span>b</span>
+    </div>
+    <span style="grid-area:1/2">ccc</span>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-008-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-008-ref.html
new file mode 100644
index 00000000000..ca8d4b3f1ea
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-008-ref.html
@@ -0,0 +1,39 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: nested orthogonal writing-mode subgrids with percentage column-gap</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display:inline-grid;
+  grid:100px 375px/300px;
+  border:3px solid;
+  width: 300px;
+  height: 500px;
+  background:lightgrey;
+  row-gap: 25px;
+}
+span {
+  grid-row:2;
+  background:cyan;
+  width:50px;
+}
+</style>
+</head>
+<body>
+
+<div class="grid">
+  <span>ccc</span>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-008.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-008.html
new file mode 100644
index 00000000000..760bd92c3df
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-008.html
@@ -0,0 +1,49 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: nested orthogonal writing-mode subgrids with percentage column-gap</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="grid-gap-008-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display:inline-grid;
+  grid:100px auto/200px auto;
+  border:3px solid;
+  background:grey;
+  width: 300px;
+  height: 500px;
+}
+.subgrid {
+  display: grid;
+  grid: 50px / subgrid;
+  column-gap: 10%;
+  grid-area: span 2/span 2;
+  justify-content:end;
+  background:lightgrey;
+}
+span { background:cyan; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.vlr { writing-mode: vertical-lr; direction:rtl; }
+</style>
+</head>
+<body>
+
+<div class="grid">
+  <div class="subgrid vlr">
+    <span class="hl">ccc</span>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-009-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-009-ref.html
new file mode 100644
index 00000000000..628e4988b53
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-009-ref.html
@@ -0,0 +1,38 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: nested orthogonal writing-mode subgrids with percentage row-gap</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display:inline-grid;
+  grid:400px/300px;
+  border:3px solid;
+  background:lightgrey;
+  width:300px;
+  height:400px;
+}
+span {
+  margin-top:350px;
+  margin-right:115px;
+  background:cyan;
+}
+</style>
+</head>
+<body>
+
+<div class="grid">
+  <span>cc</span>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-009.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-009.html
new file mode 100644
index 00000000000..4bbf5c6e810
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-009.html
@@ -0,0 +1,48 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: nested orthogonal writing-mode subgrids with percentage row-gap</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="grid-gap-009-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display:inline-grid;
+  grid:100px auto/200px auto;
+  border:3px solid;
+  background:grey;
+  width:300px;
+  height:400px;
+}
+.subgrid {
+  display: grid;
+  grid: subgrid / 50px;
+  row-gap: 10%;
+  grid-area: span 2/span 2;
+  background:lightgrey;
+}
+span { background:cyan; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.vlr { writing-mode: vertical-lr; direction:rtl; }
+</style>
+</head>
+<body>
+
+<div class="grid">
+  <div class="subgrid vlr">
+    <span class="hl">cc</span>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-001-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-001-ref.html
new file mode 100644
index 00000000000..0d3050f568b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-001-ref.html
@@ -0,0 +1,81 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrid grid-gap:20px</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+}
+
+  .wrapper {
+    display: grid;
+    gap: 0;
+    grid-template-columns: 150px 100px 150px 100px;
+    grid-template-rows: repeat(3,auto);
+    background-color: #fff;
+    color: #444;
+  }
+
+  .box {
+    background-color: #444;
+    color: #fff;
+    padding: 20px;
+  }
+
+  .box .box {
+    background-color: #ccc;
+    color: #444;
+  }
+
+  .a {
+    grid-column: 1 / 3;
+  }
+
+  .b {
+    grid-column: 4 ;
+  }
+
+  .c {
+    grid-column: 1;
+    grid-row: 2 / 4;
+  }
+
+  .box .f { background-color: purple; }
+  .box .i { background-color: blue; }
+  .box .e { background-color: yellow; }
+  .a { background-color: grey; }
+  .c { background-color: black; }
+  .b { background-color: black; }
+
+  .d {
+    grid-column: 2 / 5;
+    grid-row: 2 / 4;
+    display: grid;
+    gap: 20px;
+    grid: auto / 70px 130px 70px;
+  }
+
+  </style>
+</head>
+<body>
+
+<div class="wrapper">
+  <div class="box a">A</div>
+  <div class="box b">B</div>
+  <div class="box c">C</div>
+  <div class="box d">
+    <div class="box e">E</div>
+    <div class="box f">F</div>
+    <div class="box g">G</div>
+    <div class="box h">H</div>
+    <div class="box i">I</div>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-001.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-001.html
new file mode 100644
index 00000000000..85725d52925
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-001.html
@@ -0,0 +1,83 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid grid-gap:20px</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="grid-gap-larger-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+}
+
+  .wrapper {
+    display: grid;
+    gap: 0;
+    grid-template-columns: 150px 100px 150px 100px;
+    grid-template-rows: repeat(3,auto);
+    background-color: #fff;
+    color: #444;
+  }
+
+  .box {
+    background-color: #444;
+    color: #fff;
+    padding: 20px;
+  }
+
+  .box .box {
+    background-color: #ccc;
+    color: #444;
+  }
+
+  .a {
+    grid-column: 1 / 3;
+  }
+
+  .b {
+    grid-column: 4 ;
+  }
+
+  .c {
+    grid-column: 1;
+    grid-row: 2 / 4;
+  }
+
+  .box .f { background-color: purple; }
+  .box .i { background-color: blue; }
+  .box .e { background-color: yellow; }
+  .a { background-color: grey; }
+  .c { background-color: black; }
+  .b { background-color: black; }
+
+  .d {
+    grid-column: 2 / 5;
+    grid-row: 2 / 4;
+    display: grid;
+    gap: 20px;
+    grid: subgrid / subgrid;
+  }
+
+  </style>
+</head>
+<body>
+
+<div class="wrapper">
+  <div class="box a">A</div>
+  <div class="box b">B</div>
+  <div class="box c">C</div>
+  <div class="box d">
+    <div class="box e">E</div>
+    <div class="box f">F</div>
+    <div class="box g">G</div>
+    <div class="box h">H</div>
+    <div class="box i">I</div>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-002-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-002-ref.html
new file mode 100644
index 00000000000..7415de64cd5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-002-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid with larger gap than parent grid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display:inline-grid;
+  grid:100px auto/100px;
+  gap:20px;
+  border:3px solid;
+  background:yellow;
+}
+span { background:lightgrey; }
+span:nth-child(2n+1) { background:grey; }
+</style>
+</head>
+<body>
+
+<div class="grid">
+  <span style="height:60px">a</span><span style="margin-top:40px">b</span>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-002.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-002.html
new file mode 100644
index 00000000000..4565be1b800
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-larger-002.html
@@ -0,0 +1,37 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid with larger gap than parent grid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="grid-gap-larger-002-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display:inline-grid;
+  grid:100px auto/100px;
+  gap:20px;
+  border:3px solid;
+  background:yellow;
+}
+span { background:lightgrey; }
+span:nth-child(2n+1) { background:grey; }
+</style>
+</head>
+<body>
+
+<div class="grid">
+  <div style="display:grid; grid:subgrid/100px; gap:100px; grid-row:span 2">
+    <span>a</span><span>b</span>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-normal-001-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-normal-001-ref.html
new file mode 100644
index 00000000000..ee99c02410c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-normal-001-ref.html
@@ -0,0 +1,75 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrid grid-gap:normal</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+}
+
+  .wrapper {
+    display: grid;
+    gap: 10px;
+    grid-template-columns: 150px 100px 150px 100px;
+    grid-template-rows: repeat(3,minmax(100px,auto));
+    background-color: #fff;
+    color: #444;
+  }
+
+  .box {
+    background-color: #444;
+    color: #fff;
+    padding: 20px;
+  }
+
+  .box .box {
+    background-color: #ccc;
+    color: #444;
+  }
+
+  .a {
+    grid-column: 1 / 3;
+  }
+
+  .b {
+    grid-column: 4 ;
+  }
+
+  .c {
+    grid-column: 1;
+    grid-row: 2 / 4;
+  }
+
+  .d {
+    grid-column: 2 / 5;
+    grid-row: 2 / 4;
+    display: grid;
+    gap: 10px;
+    grid-template-columns: 80px 150px 80px;
+    grid-template-rows: 80px 80px;
+  }
+
+  </style>
+</head>
+<body>
+
+<div class="wrapper">
+  <div class="box a">A</div>
+  <div class="box b">B</div>
+  <div class="box c">C</div>
+  <div class="box d">
+    <div class="box e">E</div>
+    <div class="box f">F</div>
+    <div class="box g">G</div>
+    <div class="box h">H</div>
+    <div class="box i">I</div>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-normal-001.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-normal-001.html
new file mode 100644
index 00000000000..5edf1e07621
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-normal-001.html
@@ -0,0 +1,76 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid grid-gap:normal</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="grid-gap-normal-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+}
+
+  .wrapper {
+    display: grid;
+    gap: 10px;
+    grid-template-columns: 150px 100px 150px 100px;
+    grid-template-rows: repeat(3,minmax(100px,auto));
+    background-color: #fff;
+    color: #444;
+  }
+
+  .box {
+    background-color: #444;
+    color: #fff;
+    padding: 20px;
+  }
+
+  .box .box {
+    background-color: #ccc;
+    color: #444;
+  }
+
+  .a {
+    grid-column: 1 / 3;
+  }
+
+  .b {
+    grid-column: 4 ;
+  }
+
+  .c {
+    grid-column: 1;
+    grid-row: 2 / 4;
+  }
+
+  .d {
+    grid-column: 2 / 5;
+    grid-row: 2 / 4;
+    display: grid;
+    grid-template-columns: subgrid;
+    grid-template-rows: subgrid;
+  }
+
+  </style>
+</head>
+<body>
+
+<div class="wrapper">
+  <div class="box a">A</div>
+  <div class="box b">B</div>
+  <div class="box c">C</div>
+  <div class="box d">
+    <div class="box e">E</div>
+    <div class="box f">F</div>
+    <div class="box g">G</div>
+    <div class="box h">H</div>
+    <div class="box i">I</div>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-smaller-001-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-smaller-001-ref.html
new file mode 100644
index 00000000000..fcd6851e2f8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-smaller-001-ref.html
@@ -0,0 +1,82 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrid grid-gap:0px</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+}
+
+  .wrapper {
+    display: grid;
+    gap: 20px;
+    grid-template-columns: 170px 100px 190px 100px;
+    grid-template-rows: repeat(3,auto);
+    gap: 0;
+    background-color: #fff;
+    color: #444;
+  }
+
+  .box {
+    background-color: #444;
+    color: #fff;
+    padding: 20px;
+  }
+
+  .box .box {
+    background-color: #ccc;
+    color: #444;
+  }
+
+  .a {
+    grid-column: 1 / 3;
+    margin-bottom: 20px;
+  }
+
+  .b {
+    grid-column: 4 ;
+    margin-bottom: 20px;
+  }
+
+  .c {
+    grid-column: 1;
+    grid-row: 2 / 4;
+    margin-right: 20px;
+  }
+
+  .box .f { background-color: purple; }
+  .box .i { background-color: blue; }
+  .box .e { background-color: yellow; }
+
+  .d {
+    grid-column: 2 / 5;
+    grid-row: 2 / 4;
+    display: grid;
+    gap: 0;
+    grid-template-columns: 90px 170px 90px;
+  }
+
+  </style>
+</head>
+<body>
+
+<div class="wrapper">
+  <div class="box a">A</div>
+  <div class="box b">B</div>
+  <div class="box c">C</div>
+  <div class="box d">
+    <div class="box e">E</div>
+    <div class="box f">F</div>
+    <div class="box g">G</div>
+    <div class="box h">H</div>
+    <div class="box i">I</div>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-smaller-001.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-smaller-001.html
new file mode 100644
index 00000000000..7b59acd700b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/grid-gap-smaller-001.html
@@ -0,0 +1,80 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid grid-gap:0px</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="grid-gap-smaller-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+}
+
+  .wrapper {
+    display: grid;
+    gap: 20px;
+    grid-template-columns: 150px 100px 150px 100px;
+    grid-template-rows: repeat(3,auto);
+    background-color: #fff;
+    color: #444;
+  }
+
+  .box {
+    background-color: #444;
+    color: #fff;
+    padding: 20px;
+  }
+
+  .box .box {
+    background-color: #ccc;
+    color: #444;
+  }
+
+  .a {
+    grid-column: 1 / 3;
+  }
+
+  .b {
+    grid-column: 4 ;
+  }
+
+  .c {
+    grid-column: 1;
+    grid-row: 2 / 4;
+  }
+
+  .box .f { background-color: purple; }
+  .box .i { background-color: blue; }
+  .box .e { background-color: yellow; }
+
+  .d {
+    grid-column: 2 / 5;
+    grid-row: 2 / 4;
+    display: grid;
+    gap: 0;
+    grid: subgrid / subgrid;
+  }
+
+  </style>
+</head>
+<body>
+
+<div class="wrapper">
+  <div class="box a">A</div>
+  <div class="box b">B</div>
+  <div class="box c">C</div>
+  <div class="box d">
+    <div class="box e">E</div>
+    <div class="box f">F</div>
+    <div class="box g">G</div>
+    <div class="box h">H</div>
+    <div class="box i">I</div>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/item-percentage-height-001-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/item-percentage-height-001-ref.html
new file mode 100644
index 00000000000..44f0d443ffa
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/item-percentage-height-001-ref.html
@@ -0,0 +1,56 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrid item percentage height</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style type="text/css">
+
+.wrapper {
+  padding: 2px;
+  padding-top: 5px;
+  border: 1px solid;
+}
+.grid {
+  display: grid;
+  grid: auto auto / auto;
+  grid-row-gap: 60px;
+  height: 300px;
+  background: lightgrey;
+}
+
+.subgrid {
+  display: grid;
+  grid: subgrid / auto;
+  grid-row: span 2;
+  grid-row-gap: 40px;
+  padding: 10px;
+  padding-top: 5px;
+}
+
+.item {
+  align-self: start;
+  width: 100px;
+  background: grey;
+  margin-left: 10px;
+}
+
+.hidden { visibility: hidden; }
+.a1 { grid-area: 1/1; }
+.a2 { grid-area: 2/1; }
+  </style>
+</head>
+<body>
+
+<div class="wrapper">
+<div class="grid">
+  <div class="item hidden a1" style="height:25px"></div><div class="item a1" style="margin-top:5px; margin-bottom:-10px; align-self:stretch"></div>
+  <div class="item hidden a2" style="height:120px"></div><div class="item a2" style="margin-top:-10px; height:100px"></div>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/item-percentage-height-001.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/item-percentage-height-001.html
new file mode 100644
index 00000000000..15e996ea326
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/item-percentage-height-001.html
@@ -0,0 +1,53 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid item percentage height</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="item-percentage-height-001-ref.html">
+  <style type="text/css">
+
+.grid {
+  display: grid;
+  grid: auto auto / auto;
+  grid-row-gap: 60px;
+  border: 1px solid;
+  padding: 2px;
+  padding-top: 5px;
+  height: 300px;
+}
+
+.subgrid {
+  display: grid;
+  grid: subgrid / auto;
+  grid-row: span 2;
+  grid-row-gap: 40px;
+  background: lightgrey;
+  padding: 10px;
+  padding-top: 5px;
+}
+
+.item {
+  align-self: start;
+  height: 100%;
+  width: 100px;
+  background: grey;
+}
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+  <div class="subgrid">
+    <div class="item"></div>
+    <div class="item" style="height:100px"></div>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-001-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-001-ref.html
new file mode 100644
index 00000000000..04c5839596c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-001-ref.html
@@ -0,0 +1,40 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrid item using line names from outer grid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: auto / [a] 50px 50px [a] 50px 50px [a];
+  padding: 20px 10px;
+}
+
+.subgrid {
+  display: grid;
+  grid: 50px / subgrid;
+  grid-column: span 3;
+}
+
+x { background: grey; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+  <div class="subgrid">
+    <x style="grid-column: 1 / 3"></x>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-001.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-001.html
new file mode 100644
index 00000000000..9b49e623ad7
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-001.html
@@ -0,0 +1,42 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid item using line names from outer grid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="line-names-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: auto / [a] 50px 50px [a] 50px 50px [a];
+  padding: 20px 10px;
+}
+
+.subgrid {
+  display: grid;
+  grid: 50px / subgrid;
+  grid-column: span 3;
+}
+
+x { background: grey; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+  <div class="subgrid">
+    <x style="grid-column: span a / a -1"></x>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-002.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-002.html
new file mode 100644
index 00000000000..a10a4d019b9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-002.html
@@ -0,0 +1,42 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid item using line names from outer grid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="line-names-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: auto / repeat(10, 10px) repeat(10, [a] 10px) [a];
+  padding: 20px 10px;
+}
+
+.subgrid {
+  display: grid;
+  grid: 50px / subgrid;
+  grid-column: span 10;
+}
+
+x { background: grey; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+  <div class="subgrid">
+    <x style="grid-column: span a / a 8"></x>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-003.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-003.html
new file mode 100644
index 00000000000..43afaf94146
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-003.html
@@ -0,0 +1,44 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: nested subgrid item using line names from outer grid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="line-names-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: auto / [a] 50px 50px [a] 50px 50px [a];
+  padding: 20px 10px;
+}
+
+.subgrid {
+  display: grid;
+  grid: 50px / subgrid;
+  grid-column: span 4;
+}
+
+x { background: grey; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+  <div class="subgrid">
+    <div class="subgrid" style="grid-column: span 3">
+      <x style="grid-column: span a / a -1"></x>
+    </div>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-004-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-004-ref.html
new file mode 100644
index 00000000000..6ceb9d49274
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-004-ref.html
@@ -0,0 +1,52 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrid item using mix of outer/inner line names</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: auto / [a] 50px 50px 50px 50px [b] 50px 50px [a b];
+  padding: 20px 10px;
+}
+
+.subgrid {
+  display: grid;
+  grid-template-columns:  subgrid [x] [b] [] [] [b];
+  grid-auto-rows: 10px;
+  grid-column: 2 / span 4;
+}
+
+x { background: grey; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+  <div class="subgrid">
+    <x style="grid-row:1; grid-column: 2 / 4"></x>
+    <x style="grid-row:2; grid-column: 2 / 5"></x>
+    <x style="grid-row:3; grid-column: 2 / 4"></x>
+    <x style="grid-row:4; grid-column: 2 / 4"></x>
+    <x style="grid-row:5; grid-column: 2 / 5"></x>
+    <x style="grid-row:6; grid-column: 2 / 4"></x>
+    <x style="grid-row:7; grid-column: 1 / 4"></x>
+    <x style="grid-row:8; grid-column: 2 / 4"></x>
+    <x style="grid-row:9; grid-column: 2 / 3"></x>
+    <x style="grid-row:10; grid-column: 2 / 3"></x>
+    <x style="grid-row:11; grid-column: 2 / 5"></x>
+    <x style="grid-row:12; grid-column: 2 / 4"></x>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-004.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-004.html
new file mode 100644
index 00000000000..0d2a96873da
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-004.html
@@ -0,0 +1,54 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid item using mix of outer/inner line names</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="line-names-004-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:24px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: auto / [a] 50px 50px 50px 50px [b] 50px 50px [a b];
+  padding: 20px 10px;
+}
+
+.subgrid {
+  display: grid;
+  grid-template-columns:  subgrid [x] [b] [] [] [b];
+  grid-auto-rows: 10px;
+  grid-column: 2 / span 4;
+}
+
+x { background: grey; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+  <div class="subgrid">
+    <x style="grid-row:1; grid-column: b / b 2"></x>
+    <x style="grid-row:2; grid-column: b / b -1"></x>
+    <x style="grid-row:3; grid-column: b / b -2"></x>
+    <x style="grid-row:4; grid-column: b / span b"></x>
+    <x style="grid-row:5; grid-column: b / span b 2"></x>
+    <x style="grid-row:6; grid-column: span b / b 2"></x>
+    <x style="grid-row:7; grid-column: span b 2 / b 2"></x>
+    <x style="grid-row:8; grid-column: b -2 / b"></x>
+    <x style="grid-row:9; grid-column: b -3 / b"></x>
+    <x style="grid-row:10; grid-column: b / b"></x>
+    <x style="grid-row:11; grid-column: b / b 10"></x>
+    <x style="grid-row:12; grid-column: span b / b -2"></x>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-005-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-005-ref.html
new file mode 100644
index 00000000000..4c7f4b50fd1
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-005-ref.html
@@ -0,0 +1,153 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrid line name resolution</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: [a] repeat(1, [b] auto [c]) [d] repeat(3, [b] auto [c]) [d] /
+        [a] 30px [b] 30px [c] 30px [] 30px [e-start] 30px [] 30px [x] 30px [h] 30px [i] 30px [j] 30px [k];
+  grid-template-areas: ". . . e . . . . . . .";
+  place-content: start;
+  border: 1px solid;
+  width: 500px;
+  grid-auto-columns: 100px;
+  grid-auto-rows: 100px;
+}
+
+.subgrid {
+  display: grid;
+  grid: auto / subgrid;
+  background: lightgrey;
+  grid-column: 2 / span 8;
+  grid-row: 2 / span 2;
+  min-width:0;
+  min-height:0;
+}
+
+.subgrid2 {
+  display: grid;
+  grid: auto / subgrid [] [] [] [b];
+  grid-column: span 10;
+}
+
+.subgrid#s1 {
+  grid-template-areas: ". e e . . . .";
+}
+
+i {
+  grid-row: 1;
+  counter-increment: i;
+}
+i::before { content: counter(i, decimal); }
+
+x {
+  min-width:10px;
+  min-height:20px;
+  background:silver;
+}
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid" id="s1">
+  <x style="grid-column:10 / span 4">x</x>
+</div>
+</div>
+
+<div class="grid hr">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hl" id="s2">
+  <x style="grid-column: 10 / span 4">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr" id="s2">
+  <x style="grid-column: 10 / span 4">x</x>
+</div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px;">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2">
+    <x style="grid-column:1 / 4">x</x>
+  </div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px;">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2">
+    <x style="grid-column:10 / span 4">x</x>
+  </div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px;">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2">
+    <x style="grid-column: 1 / -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px;">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2">
+    <x style="grid-row:2; grid-column: 1 / -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px;">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2">
+    <x style="grid-column: span 4 / 11">x</x>
+  </div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px; grid: auto / repeat(20, [a] 50px) [a] ">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2" style="grid-row:2">
+    <x style="grid-column: 10 / 11">x</x>
+  </div>
+</div>
+
+<div style="display:grid; grid: auto / repeat(10, 50px) repeat(10, [a] 50px) [a]">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid; grid-column: span 10; grid-row:2">
+    <x style="grid-column: 1 / 11">x</x>
+  </div>
+</div>
+
+<div style='display:grid; grid-template-areas: "a a a a a a a a a a"'>
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid; grid-column: 6 / span 5; grid-row:2">
+    <x style="grid-column: 1 / 6">x</x>
+  </div>
+</div>
+
+<div style='display:grid; grid-template-areas: ". . . . . . a a a a"'>
+<div style='display:grid; grid-template-areas: ". . . . . . . a a a"; grid-template-columns:subgrid; grid-column:span 10;'>
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid; grid-column: 6 / span 5; grid-row:2">
+    <x style="grid-column: 2 / 6">x</x>
+  </div>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-005.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-005.html
new file mode 100644
index 00000000000..43bde0b37ad
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-005.html
@@ -0,0 +1,155 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid line name resolution</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="line-names-005-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: [a] repeat(1, [b] auto [c]) [d] repeat(3, [b] auto [c]) [d] /
+        [a] 30px [b] 30px [c] 30px [] 30px [e-start] 30px [] 30px [x] 30px [h] 30px [i] 30px [j] 30px [k];
+  grid-template-areas: ". . . e . . . . . . .";
+  place-content: start;
+  border: 1px solid;
+  width: 500px;
+  grid-auto-columns: 100px;
+  grid-auto-rows: 100px;
+}
+
+.subgrid {
+  display: grid;
+  grid: auto / subgrid;
+  background: lightgrey;
+  grid-column: 2 / span 8;
+  grid-row: 2 / span 2;
+  min-width:0;
+  min-height:0;
+}
+
+.subgrid2 {
+  display: grid;
+  grid: auto / subgrid [] [] [] [b];
+  grid-column: span 10;
+}
+
+.subgrid#s1 {
+  grid-template-areas: ". e e . . . .";
+}
+
+i {
+  grid-row: 1;
+  counter-increment: i;
+}
+i::before { content: counter(i, decimal); }
+
+x {
+  min-width:10px;
+  min-height:20px;
+  background:silver;
+}
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid" id="s1">
+  <x style="grid-column:foo / span 4">x</x>
+</div>
+</div>
+
+<div class="grid hr">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hl" id="s2">
+  <x style="grid-column: x 6 / span 4">x</x>
+</div>
+</div>
+
+<div class="grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+<div class="subgrid hr" id="s2">
+  <x style="grid-column: x 6 / span 4">x</x>
+</div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px;">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2">
+    <x style="grid-column:1 / b">x</x>
+  </div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px;">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2">
+    <x style="grid-column:foo / span 4">x</x>
+  </div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px;">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2">
+    <x style="grid-column: span bar / foo 3">x</x>
+  </div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px;">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2">
+    <x style="grid-row:2; grid-column: span bar / foo 3">x</x>
+  </div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px;">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2">
+    <x style="grid-column:span 4 / foo">x</x>
+  </div>
+</div>
+
+<div style="display:grid; width:500px; grid-auto-columns: 50px; grid: auto / repeat(20, [a] 50px) [a] ">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="subgrid2" style="grid-row:2">
+    <x style="grid-column:foo / span 4">x</x>
+  </div>
+</div>
+
+<div style="display:grid; grid: auto / repeat(10, 50px) repeat(10, [a] 50px) [a]">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid; grid-column: span 10; grid-row:2">
+    <x style="grid-column: span a / a 8">x</x>
+  </div>
+</div>
+
+<div style='display:grid; grid-template-areas: "a a a a a a a a a a"'>
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid; grid-column: 6 / span 5; grid-row:2">
+    <x style="grid-column: a">x</x>
+  </div>
+</div>
+
+<div style='display:grid; grid-template-areas: ". . . . . . a a a a"'>
+<div style='display:grid; grid-template-areas: ". . . . . . . a a a"; grid-template-columns:subgrid; grid-column:span 10;'>
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid; grid-column: 6 / span 5; grid-row:2">
+    <x style="grid-column: a">x</x>
+  </div>
+</div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-006-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-006-ref.html
new file mode 100644
index 00000000000..e2c2ec2085b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-006-ref.html
@@ -0,0 +1,115 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrid line name resolution</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace; padding:0; margin:0;
+}
+
+div > div { background: grey; grid-column: 2 / span 2; }
+
+i {
+  grid-row: 1;
+  counter-increment: i;
+}
+i::before { content: counter(i, decimal); }
+
+x { background: silver; }
+
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+  </style>
+</head>
+<body>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid; grid-template-areas: '. a a a a';">
+    <x style="grid-column: 2 / 3">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid [a];">
+    <x style="grid-column: 1 / 2">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid [a]; grid-column:1/span 2">
+    <x style="grid-column: 1 / 2">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: 2 / 3">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid [a] [a] [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: 3 / 4">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid [] [a] [a]; grid-column-end:span 6">
+    <x style="grid-column: 2 / 3">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid; grid-template-areas: '. a a a a';">
+    <x style="grid-column: 2 / 3">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid [a];">
+    <x style="grid-column: 1 / 2">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid [a]; grid-column:1/span 2">
+    <x style="grid-column: 1 / 2">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: 2 / 3">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid [a] [a] [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: 3 / 4">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid [] [a] [a]; grid-column-end:span 6">
+    <x style="grid-column: 2 / 3">x</x>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-006.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-006.html
new file mode 100644
index 00000000000..0aa8c80b2e2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-006.html
@@ -0,0 +1,117 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid line name resolution</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="line-names-006-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace; padding:0; margin:0;
+}
+
+div > div { background: grey; grid-column: 2 / span 2; }
+
+i {
+  grid-row: 1;
+  counter-increment: i;
+}
+i::before { content: counter(i, decimal); }
+
+x { background: silver; }
+
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+  </style>
+</head>
+<body>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid; grid-template-areas: '. a a a a';">
+    <x style="grid-column: a-end -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid [a];">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid [a]; grid-column:1/span 2">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid [a] [a] [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div style="display:grid; grid:auto/subgrid [] [a] [a]; grid-column-end:span 6">
+    <x style="grid-column: a">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid; grid-template-areas: '. a a a a';">
+    <x style="grid-column: a-end -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid [a];">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid [a]; grid-column:1/span 2">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid [a] [a] [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div style="display:grid">
+<i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i>
+  <div class="hr" style="display:grid; grid:auto/subgrid [] [a] [a]; grid-column-end:span 6">
+    <x style="grid-column: a">x</x>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-007-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-007-ref.html
new file mode 100644
index 00000000000..2b06d9c3812
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-007-ref.html
@@ -0,0 +1,134 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: line name resolution for grid-aligned abs.pos. inside subgrid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace;
+}
+
+.grid {
+  position: relative;
+  display: grid;
+  grid: 0.2em / repeat(10,30px);
+  grid-auto-rows: 2em;
+  border: 1px solid;
+  padding: 1px 2px;
+}
+
+div > div {
+  padding: 4px 0 1px 0;
+  border: 3px solid black;
+  background: grey;
+  margin-left: 30px;
+  width: 54px;
+}
+
+n {
+  grid-row: 1;
+  counter-increment: n;
+}
+n::before { content: counter(n, decimal); }
+
+x {
+  position: absolute;
+  left:0; right:0;
+  background: silver;
+}
+
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div>
+    <x>x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div>
+    <x>x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="margin-left:0">
+    <x>x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="width:84px">
+    <x>x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="width:84px">
+    <x>x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="width:174px">
+    <x>x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr">
+    <x>x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr">
+    <x>x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="margin-left:0">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="width:84px">
+    <x>x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="width:84px">
+    <x>x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="width:174px">
+    <x>x</x>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-007.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-007.html
new file mode 100644
index 00000000000..d70a86b6b14
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-007.html
@@ -0,0 +1,137 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: line name resolution for grid-aligned abs.pos. inside subgrid</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="line-names-007-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace;
+}
+
+.grid {
+  position: relative;
+  display: grid;
+  grid: 0.2em / repeat(10,30px);
+  grid-auto-rows: 2em;
+  border: 1px solid;
+  padding: 1px 2px;
+}
+
+div > div {
+  display: grid;
+  grid-column: 2 / span 2;
+  grid: auto / subgrid;
+  padding: 4px 33px 1px 10px;
+  border: 3px solid black;
+  background: grey;
+}
+
+n {
+  grid-row: 1;
+  counter-increment: n;
+}
+n::before { content: counter(n, decimal); }
+
+x {
+  position: absolute;
+  left:0; right:0;
+  background: silver;
+}
+
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-areas: '. a a a a';">
+    <x style="grid-column: a-end -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [a];">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [a]; grid-column:1/span 2">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [a] [a] [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [] [a] [a]; grid-column-end:span 6">
+    <x style="grid-column: a">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-areas: '. a a a a';">
+    <x style="grid-column: a-end -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [a];">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [a]; grid-column:1/span 2">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [a] [a] [a] [a]; grid-column-end:span 3">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [] [a] [a]; grid-column-end:span 6">
+    <x style="grid-column: a">x</x>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-008-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-008-ref.html
new file mode 100644
index 00000000000..262fa548ec5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-008-ref.html
@@ -0,0 +1,162 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: line name resolution for grid-aligned abs.pos. inside subgrid CB</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace;
+}
+
+.grid {
+  display: grid;
+  grid: 0.2em 1.4em / repeat(10,30px);
+  border: 1px solid;
+  padding: 0 2px;
+}
+
+div > div {
+  position: relative;
+  display: grid;
+  grid-column: 2 / span 2;
+  grid: auto / subgrid;
+  padding: 4px 0 1px 10px;
+  border: 1px solid black;
+  background: grey;
+}
+
+n {
+  grid-row: 1;
+  counter-increment: n;
+}
+n::before { content: counter(n, decimal); }
+
+x {
+  position: absolute;
+  left:0; right:0;
+  background: silver;
+}
+
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div>
+    <x style="grid-column: -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div>
+    <x style="grid-column: 2">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-column-end:span 5">
+    <x style="grid-column: 2">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-column:2/span 5">
+    <x style="grid-column: 4">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-column-end:span 6">
+    <x style="grid-column: 2 / 4">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-column-end:span 3">
+    <x style="grid-column: -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-column:2/span 6">
+    <x style="grid-column: 3 / 5">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-column:2/span 6">
+    <x style="grid-column: 3 / 5">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr">
+    <x style="grid-column: 3 / auto">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr">
+    <x style="grid-column: 2 / auto">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-column-end:span 5">
+    <x style="grid-column: 2 / auto">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-column:2/span 5">
+    <x style="grid-column: 6 / auto">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-column-end:span 6">
+    <x style="grid-column: 2 / 4">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-column-end:span 3">
+    <x style="grid-column: 4 / auto">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-column:2/span 6">
+    <x style="grid-column: 5 / 7">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-column:2/span 6">
+    <x style="grid-column: 5 / 7">x</x>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-008.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-008.html
new file mode 100644
index 00000000000..7b959120c31
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/line-names-008.html
@@ -0,0 +1,164 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: line name resolution for grid-aligned abs.pos. inside subgrid CB</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="line-names-008-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace;
+}
+
+.grid {
+  display: grid;
+  grid: 0.2em 1.4em / repeat(10,30px);
+  border: 1px solid;
+  padding: 0 2px;
+}
+
+div > div {
+  position: relative;
+  display: grid;
+  grid-column: 2 / span 2;
+  grid: auto / subgrid;
+  padding: 4px 0 1px 10px;
+  border: 1px solid black;
+  background: grey;
+}
+
+n {
+  grid-row: 1;
+  counter-increment: n;
+}
+n::before { content: counter(n, decimal); }
+
+x {
+  position: absolute;
+  left:0; right:0;
+  background: silver;
+}
+
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-areas: '. a a a a';">
+    <x style="grid-column: a-end -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [][a][];">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid" style="grid-template-columns: repeat(9,30px) [a] 30px">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [][a][]; grid-column-end:span 5">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid" style="grid-template-columns: repeat(5,[a]30px) repeat(5,30px)">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [a]; grid-column:2/span 5">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid" style="grid-template-columns: repeat(4,30px) [a] 30px repeat(5,30px)">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [a] [a]; grid-column-end:span 6">
+    <x style="grid-column: a 2 / a -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [a] [a] [] [a]; grid-column-end:span 3">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid" style="grid-template-columns: repeat(3,30px) [a] 30px repeat(7,30px)">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [] [] [] [] [a]; grid-column:2/span 6">
+    <x style="grid-column: a/span a">x</x>
+  </div>
+</div>
+
+<div class="grid" style="grid-template-columns: repeat(3,30px) [a] 30px repeat(7,30px)">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div style="grid-template-columns: subgrid [] [] [] [] [a]; grid-column:2/span 6">
+    <x style="grid-column: a/a 2">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-areas: '. a a a a';">
+    <x style="grid-column: a-end -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [][a][];">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid" style="grid-template-columns: repeat(9,30px) [a] 30px">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [][a][]; grid-column-end:span 5">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid" style="grid-template-columns: repeat(5,[a]30px) repeat(5,30px)">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [a]; grid-column:2/span 5">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid" style="grid-template-columns: repeat(4,30px) [a] 30px repeat(5,30px)">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [a] [a]; grid-column-end:span 6">
+    <x style="grid-column: a 2 / a -1">x</x>
+  </div>
+</div>
+
+<div class="grid">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [a] [a] [] [a]; grid-column-end:span 3">
+    <x style="grid-column: a -1">x</x>
+  </div>
+</div>
+
+<div class="grid" style="grid-template-columns: repeat(3,30px) [a] 30px repeat(7,30px)">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [] [] [] [] [a]; grid-column:2/span 6">
+    <x style="grid-column: a/span a">x</x>
+  </div>
+</div>
+
+<div class="grid" style="grid-template-columns: repeat(3,30px) [a] 30px repeat(7,30px)">
+<n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n><n></n>
+  <div class="hr" style="grid-template-columns: subgrid [] [] [] [] [a]; grid-column:2/span 6">
+    <x style="grid-column: a/a 2">x</x>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-001-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-001-ref.html
new file mode 100644
index 00000000000..4f0f6f962e6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-001-ref.html
@@ -0,0 +1,89 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrids with different writing-mode than parent</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace;
+}
+
+.grid {
+  display: grid;
+  grid: repeat(4, auto) / repeat(5, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: auto / auto;
+  background: lightgrey;
+  grid-column: 2 / span 5;
+  grid-row: 2 / span 5;
+  min-width:10px;
+  min-height:0;
+  border: 0 solid lightblue;
+  border-bottom-width: 40px;
+}
+
+.vlr {
+  writing-mode: vertical-lr;
+  grid: auto / auto;
+  grid-column: 2 / span 5;
+  grid-row: 3 / span 5;
+  background: blue;
+}
+
+x {
+  min-width:10px;
+  min-height:0px;
+}
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: grey; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: black; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+.vl { writing-mode: vertical-lr; }
+.vr { writing-mode: vertical-rl; }
+.vlr { writing-mode: vertical-lr; direction:rtl; }
+.vrl { writing-mode: vertical-rl; direction:ltr; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vrl" style="text-indent:10px">
+    A B
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vr">
+    <div class="subgrid hr">A B</div>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:3; height:50px; background:black"></x>
+<x style="grid-row:4; height:50px; background:pink"></x>
+<x style="grid-row:5; height:40px; background:black"></x>
+<div class="subgrid vlr">
+<div class="subgrid hl">
+  <x style="grid-row:2 / span 2; height: 100px">A B C D E F</x>
+</div>
+</div>
+</div>
+
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-001.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-001.html
new file mode 100644
index 00000000000..1cf99a73e2e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-001.html
@@ -0,0 +1,89 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrids with different writing-mode than parent</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="orthogonal-writing-mode-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 monospace;
+}
+
+.grid {
+  display: grid;
+  grid: repeat(4, auto) / repeat(5, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: subgrid / auto;
+  background: lightgrey;
+  grid-column: 2 / span 5;
+  grid-row: 2 / span 5;
+  min-width:10px;
+  min-height:0;
+  border: 0 solid lightblue;
+  border-bottom-width: 40px;
+}
+
+.vlr {
+  writing-mode: vertical-lr;
+  grid: auto / subgrid;
+  grid-column: 2 / span 5;
+  grid-row: 3 / span 5;
+  background: blue;
+}
+
+x {
+  min-width:10px;
+  min-height:0px;
+}
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: grey; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: black; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+.vl { writing-mode: vertical-lr; }
+.vr { writing-mode: vertical-rl; }
+.vlr { writing-mode: vertical-lr; direction:rtl; }
+.vrl { writing-mode: vertical-rl; direction:ltr; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vrl" style="text-indent:10px">
+    A B
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vr">
+    <div class="subgrid hr">A B</div>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+<div class="subgrid vlr">
+<div class="subgrid hl">
+  <x style="grid-row:2 / span 2; height: 100px">A B C D E F</x>
+</div>
+</div>
+</div>
+
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-002-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-002-ref.html
new file mode 100644
index 00000000000..7c51c028286
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-002-ref.html
@@ -0,0 +1,90 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrids with different writing-mode than parent</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 Ahem;
+}
+
+.grid {
+  display: grid;
+  grid: repeat(4, auto) / repeat(5, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: auto / auto;
+  grid-column: 2 / span 5;
+  grid-row: 2 / span 5;
+  min-width:10px;
+  min-height:0;
+  border: 0 solid lightblue;
+  border-bottom-width: 40px;
+  background: yellow;
+  padding: 1px 3px 5px 7px;
+  margin: 3px 11px 7px 5px;
+}
+
+.vlr {
+  writing-mode: vertical-lr;
+  grid: auto / auto;
+  grid-column: 2 / span 5;
+  grid-row: 3 / span 5;
+  background: blue;
+}
+
+x {
+  min-width:10px;
+  min-height:0px;
+}
+
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: grey; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: black; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+.vl { writing-mode: vertical-lr; }
+.vr { writing-mode: vertical-rl; }
+.vlr { writing-mode: vertical-lr; direction:rtl; }
+.vrl { writing-mode: vertical-rl; direction:ltr; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid vrl">
+<x style="grid-column:1; height:0px"></x><x style="grid-column:2; height:16px"></x><x style="grid-column:3; height:30px"></x><x style="grid-column:4; height:52px"></x>
+<div class="subgrid hl">
+  <x style="grid-column:span 12">A _B</x>
+  <x style="width:100px; height:30px"></x>
+  <x style="background:yellow">C D_</x>
+</div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1; height:0px"></x><x style="grid-row:2; height:0px"></x><x style="grid-row:3; height:52px"></x><x style="grid-row:4; height:30px"></x>
+<div class="subgrid vlr" style="grid: auto / repeat(5, auto);">
+  <x>A _B</x>
+  <x style="width:100px; height:30px"></x>
+  <x>C D_</x>
+</div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1; height:0px"></x><x style="grid-row:2; height:0px"></x><x style="grid-row:3; height:4px"></x>
+<div class="subgrid vlr"></div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-002.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-002.html
new file mode 100644
index 00000000000..20a4b0ccf37
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-002.html
@@ -0,0 +1,92 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrids with different writing-mode than parent</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="orthogonal-writing-mode-002-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 Ahem;
+}
+
+.grid {
+  display: grid;
+  grid: repeat(4, auto) / repeat(5, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: subgrid / auto;
+  grid-column: 2 / span 5;
+  grid-row: 2 / span 5;
+  min-width:10px;
+  min-height:0;
+  border: 0 solid lightblue;
+  border-bottom-width: 40px;
+  background: yellow;
+  padding: 1px 3px 5px 7px;
+  margin: 3px 11px 7px 5px;
+}
+
+.vlr {
+  writing-mode: vertical-lr;
+  grid: auto / subgrid;
+  grid-column: 2 / span 5;
+  grid-row: 3 / span 5;
+  background: blue;
+}
+
+x {
+  min-width:10px;
+  min-height:0px;
+}
+
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: grey; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: black; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+.vl { writing-mode: vertical-lr; }
+.vr { writing-mode: vertical-rl; }
+.vlr { writing-mode: vertical-lr; direction:rtl; }
+.vrl { writing-mode: vertical-rl; direction:ltr; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid vrl">
+<x style="grid-column:1"></x><x style="grid-column:2"></x><x style="grid-column:3"></x><x style="grid-column:4"></x><x style="grid-column:5"></x><x style="grid-column:6"></x>
+<div class="subgrid hl">
+  <x style="grid-column:span 12">A _B</x>
+  <x style="width:100px; height:30px"></x>
+  <x style="background:yellow">C D_</x>
+</div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+<div class="subgrid vlr">
+  <x>A _B</x>
+  <x style="width:100px; height:30px"></x>
+  <x>C D_</x>
+</div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+<div class="subgrid vlr"></div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-003-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-003-ref.html
new file mode 100644
index 00000000000..3026548c68a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-003-ref.html
@@ -0,0 +1,104 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrids with different writing-mode than parent</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 Ahem;
+}
+
+.grid {
+  display: grid;
+  grid: 2px repeat(4, auto) / 10px repeat(50, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: repeat(50, auto) / repeat(4, auto);
+  background: lightgrey;
+  grid-column: 2 / span 5;
+  grid-row: 3 / span 3;
+  min-width:10px;
+  min-height:0;
+  border: solid lightblue;
+  border-width: 1px 5px 3px 7px;
+  padding:      5px 7px 3px 1px;
+  margin:       7px 3px 5px 1px;
+}
+
+item { text-indent:10px; background: magenta; }
+
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: grey; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: black; }
+x:nth-child(2n+5) { background: blue; }
+x:nth-child(2n+6) { background: cyan; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+.vl { writing-mode: vertical-lr; }
+.vr { writing-mode: vertical-rl; }
+.vlr { writing-mode: vertical-lr; direction:rtl; }
+.vrl { writing-mode: vertical-rl; direction:ltr; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0"></x><x style="grid-row:3;height:25px"></x><x style="grid-row:4;height:0px"></x><x style="grid-row:5;height:11px"></x>
+  <div class="subgrid vrl">
+    <item class="hl">AB</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:13px"></x><x style="grid-row:4;height:0px"></x><x style="grid-row:5;height:23px"></x>
+  <div class="subgrid vlr">
+    <item class="hl">AB</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:25px"></x><x style="grid-row:4;height:0px"></x><x style="grid-row:5;height:11px"></x>
+  <div class="subgrid vrl" style="grid-column:2/5">
+    <item class="hl">AB</item>
+  </div>
+  <item class="hl" style="grid-area:3/5/4/6">AB</item>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:40px"></x><x style="grid-row:4;height:0px"></x><x style="grid-row:5;height:11px"></x>
+  <div class="subgrid vrl" style="grid-column:2/5">
+    <item class="hl" style="height:27px">AB</item>
+  </div>
+  <item class="hl" style="grid-area:3/5/4/6; height:40px; width:10px"></item>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:25px"></x><x style="grid-row:4;height:40px"></x><x style="grid-row:5;height:11px"></x>
+  <div class="subgrid vrl" style="grid-column:2/5">
+    <item class="hl" style="height:12px">AB</item>
+  </div>
+  <item class="hl" style="grid-area:4/5/5/6; height:40px; width:10px"></item>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:25px"></x><x style="grid-row:4;height:0px"></x><x style="grid-row:5;height:40px"></x>
+  <div class="subgrid vrl" style="grid-column:2/5">
+    <item class="hl" style="height:12px">AB</item>
+  </div>
+  <item class="hl" style="grid-area:5/5/6/6; height:40px; width:10px"></item>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-003.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-003.html
new file mode 100644
index 00000000000..2cd17d628b2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-003.html
@@ -0,0 +1,106 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrids with different writing-mode than parent</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="orthogonal-writing-mode-003-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:12px/1 Ahem;
+}
+
+.grid {
+  display: grid;
+  grid: 2px repeat(4, auto) / 10px repeat(50, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: subgrid / subgrid;
+  background: lightgrey;
+  grid-column: 2 / span 5;
+  grid-row: 3 / span 3;
+  min-width:10px;
+  min-height:0;
+  border: solid lightblue;
+  border-width: 1px 5px 3px 7px;
+  padding:      5px 7px 3px 1px;
+  margin:       7px 3px 5px 1px;
+}
+
+item { text-indent:10px; background: magenta; }
+
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: grey; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: black; }
+x:nth-child(2n+5) { background: blue; }
+x:nth-child(2n+6) { background: cyan; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+.vl { writing-mode: vertical-lr; }
+.vr { writing-mode: vertical-rl; }
+.vlr { writing-mode: vertical-lr; direction:rtl; }
+.vrl { writing-mode: vertical-rl; direction:ltr; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vrl">
+    <item class="hl">AB</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vlr">
+    <item class="hl">AB</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vrl" style="grid-column:2/5">
+    <item class="hl">AB</item>
+  </div>
+  <item class="hl" style="grid-area:3/5/4/6">AB</item>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vrl" style="grid-column:2/5">
+    <item class="hl">AB</item>
+  </div>
+  <item class="hl" style="grid-area:3/5/4/6; height:40px; width:10px"></item>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vrl" style="grid-column:2/5">
+    <item class="hl">AB</item>
+  </div>
+  <item class="hl" style="grid-area:4/5/5/6; height:40px; width:10px"></item>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vrl" style="grid-column:2/5">
+    <item class="hl">AB</item>
+  </div>
+  <item class="hl" style="grid-area:5/5/6/6; height:40px; width:10px"></item>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-004-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-004-ref.html
new file mode 100644
index 00000000000..1de585bd623
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-004-ref.html
@@ -0,0 +1,128 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrids with different writing-mode than parent</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <style>
+html,body {
+  color:black; background-color:white; font:10px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: 2px repeat(4, auto) / 10px repeat(50, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: repeat(4, auto) / repeat(50, auto);;
+  background: lightgrey;
+  grid-column: 2 / span 5;
+  grid-row: 3 / span 3;
+  min-width:10px;
+  min-height:0;
+  border: solid lightblue;
+  border-width: 1px 5px 3px 7px;
+  padding:      5px 7px 3px 1px;
+  margin:       7px 3px 5px 1px;
+}
+
+item { background: magenta; }
+
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: grey; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: black; }
+x:nth-child(2n+5) { background: blue; }
+x:nth-child(2n+6) { background: cyan; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+.vl { writing-mode: vertical-lr; }
+.vr { writing-mode: vertical-rl; }
+.vlr { writing-mode: vertical-lr; direction:rtl; }
+.vrl { writing-mode: vertical-rl; direction:ltr; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:13px"></x><x style="grid-row:4;height:10px"></x><x style="grid-row:5;height:21px"></x>
+  <div class="subgrid vlr" style="grid-column:2/5">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:23px"></x><x style="grid-row:4;height:10px"></x><x style="grid-row:5;height:21px"></x>  <div class="subgrid vlr" style="grid-column:2/5">
+    <item>X</item><item>&#x00C9;</item><item>C</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:23px"></x><x style="grid-row:4;height:10px"></x><x style="grid-row:5;height:11px"></x>
+  <div class="subgrid vrl" style="grid-column:5/8">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:23px"></x><x style="grid-row:4;height:10px"></x><x style="grid-row:5;height:21px"></x>
+  <div class="subgrid vrl" style="grid-column:5/8">
+    <item>X</item><item>&#x00C9;</item><item>C</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:13px"></x><x style="grid-row:4;height:10px"></x><x style="grid-row:5;height:21px"></x>
+  <div class="subgrid vlr" style="grid-column:2/5">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+  <div class="subgrid vlr" style="grid-column:5/8">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:23px"></x><x style="grid-row:4;height:10px"></x><x style="grid-row:5;height:11px"></x>
+  <div class="subgrid vrl" style="grid-column:2/5">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+  <div class="subgrid vrl" style="grid-column:5/8">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:23px"></x><x style="grid-row:4;height:20px"></x><x style="grid-row:5;height:21px"></x>
+  <div class="subgrid vlr" style="grid-column:2/5; grid-template-columns:10px 20px">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+  <div class="subgrid vrl" style="grid-column:5/8; grid-template-columns:10px 20px">
+    <item>X</item><item>&#x00C9;&#x00C9;</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1;height:2px"></x><x style="grid-row:2;height:0px"></x><x style="grid-row:3;height:43px"></x><x style="grid-row:4;height:20px"></x><x style="grid-row:5;height:21px"></x>
+  <div class="subgrid vlr" style="grid-column:2/5; grid-template-columns:10px 20px">
+    <item>X</item><item class="">&#x00C9;</item>
+  </div>
+  <div class="subgrid vrl" style="grid-column:5/8; grid-template-columns:30px 20px">
+    <item>X</item><item>&#x00C9;&#x00C9;</item>
+  </div>
+  <div class="subgrid vrl" style="grid-column:8/11; grid-template-columns:30px 20px">
+    <item>XXX</item><item>&#x00C9;</item>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-004.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-004.html
new file mode 100644
index 00000000000..4a0edd7e6d5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/orthogonal-writing-mode-004.html
@@ -0,0 +1,131 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrids with different writing-mode than parent</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
+  <link rel="match" href="orthogonal-writing-mode-004-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:10px/1 Ahem; padding:0; margin:0;
+}
+
+.grid {
+  display: grid;
+  grid: 2px repeat(4, auto) / 10px repeat(50, auto);
+  place-content: start;
+  border: 1px solid;
+}
+
+.subgrid {
+  display: grid;
+  grid: subgrid / subgrid;
+  background: lightgrey;
+  grid-column: 2 / span 5;
+  grid-row: 3 / span 3;
+  min-width:10px;
+  min-height:0;
+  border: solid lightblue;
+  border-width: 1px 5px 3px 7px;
+  padding:      5px 7px 3px 1px;
+  margin:       7px 3px 5px 1px;
+}
+
+item { background: magenta; }
+
+x:nth-child(2n+1) { background: silver; }
+x:nth-child(2n+2) { background: grey; }
+x:nth-child(2n+3) { background: pink; }
+x:nth-child(2n+4) { background: black; }
+x:nth-child(2n+5) { background: blue; }
+x:nth-child(2n+6) { background: cyan; }
+
+.hl { writing-mode: horizontal-tb; direction:ltr; }
+.hr { writing-mode: horizontal-tb; direction:rtl; }
+.vl { writing-mode: vertical-lr; }
+.vr { writing-mode: vertical-rl; }
+.vlr { writing-mode: vertical-lr; direction:rtl; }
+.vrl { writing-mode: vertical-rl; direction:ltr; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid">
+  <x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vlr" style="grid-column:2/5">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+</div>
+
+<div class="grid">
+  <x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vlr" style="grid-column:2/5">
+    <item>X</item><item>&#x00C9;</item><item>C</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vrl" style="grid-column:5/8">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vrl" style="grid-column:5/8">
+    <item>X</item><item>&#x00C9;</item><item>C</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vlr" style="grid-column:2/5">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+  <div class="subgrid vlr" style="grid-column:5/8">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vrl" style="grid-column:2/5">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+  <div class="subgrid vrl" style="grid-column:5/8">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vlr" style="grid-column:2/5">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+  <div class="subgrid vrl" style="grid-column:5/8">
+    <item>X</item><item>&#x00C9;&#x00C9;</item>
+  </div>
+</div>
+
+<div class="grid">
+<x style="grid-row:1"></x><x style="grid-row:2"></x><x style="grid-row:3"></x><x style="grid-row:4"></x><x style="grid-row:5"></x><x style="grid-row:6"></x>
+  <div class="subgrid vlr" style="grid-column:2/5">
+    <item>X</item><item>&#x00C9;</item>
+  </div>
+  <div class="subgrid vrl" style="grid-column:5/8">
+    <item>X</item><item>&#x00C9;&#x00C9;</item>
+  </div>
+  <div class="subgrid vrl" style="grid-column:8/11">
+    <item>XXX</item><item>&#x00C9;</item>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/subgrid-item-block-size-001-ref.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/subgrid-item-block-size-001-ref.html
new file mode 100644
index 00000000000..d264a3455a6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/subgrid-item-block-size-001-ref.html
@@ -0,0 +1,98 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>Reference: subgrid item auto block-size</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+}
+
+
+body { width:600px; }
+
+.grid {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  grid-auto-flow:dense;
+  column-gap: 40px;
+  row-gap: 0px;
+}
+
+.card {
+  background-color: #fff;
+  grid-row: auto / span 3;
+  grid-template-rows: repeat(3, auto);
+  grid-template-columns: auto;
+  display: grid;
+  row-gap: 40px;
+}
+
+
+.card .inner, .card footer {
+  padding: 10px;
+}
+
+.card .inner { background: grey; }
+
+.card h2 {
+  margin: 0;
+  color: #fff;
+  background-color: rgb(3,99,143);
+  border-bottom: 4px solid rgb(24,154,153);
+}
+
+.card footer {
+  background-color: rgb(182,222,211);
+}
+
+* { box-sizing: border-box; }
+
+item {
+  border: 1px solid;
+  visibility: visible;
+}
+
+.hidden { visibility: hidden; }
+</style>
+<body>
+
+<div class="grid">
+
+   <div class="card">
+     <h2><span class="hidden">My title</span></h2>
+     <div class="inner">
+       <p>The contents.<span class="hidden"> I have a lot of content, more content than the other ones.</span></p>
+     </div>
+     <footer>Footer contents</footer>
+   </div>
+
+   <div class="card hidden">
+     <h2 style="grid-area:1/1"><span>My title</span></h2>
+     <div class="inner" style="grid-area:2/1">
+       <p>The contents. I have a lot of content, more content than the other ones.</p>
+     </div>
+     <footer style="grid-area:3/1">Footer contents</footer>
+
+     <item style="grid-area:1/1">1</item>
+     <item style="grid-area:2/1">2</item>
+     <item style="grid-area:3/1">3</item>
+
+   </div>
+
+    <div class="card">
+     <h2>My title</h2>
+     <div class="inner">
+       <p>The contents. I have a lot of content, more content than the other ones.</p>
+     </div>
+     <footer><span class="hidden">Footer contents</span></footer>
+   </div>
+
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/subgrid/subgrid-item-block-size-001.html b/tests/wpt/web-platform-tests/css/css-grid/subgrid/subgrid-item-block-size-001.html
new file mode 100644
index 00000000000..29e82197831
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-grid/subgrid/subgrid-item-block-size-001.html
@@ -0,0 +1,88 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid item auto block-size</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2">
+  <link rel="match" href="subgrid-item-block-size-001-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+}
+
+
+body { width:600px; }
+
+.grid {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  grid-auto-flow:dense;
+  gap: 40px;
+}
+
+.card {
+  background-color: #fff;
+  grid-row: auto / span 3;
+  grid-template-rows: subgrid;
+  grid-template-columns: auto;
+  display: grid;
+}
+
+
+.card .inner, .card footer {
+  padding: 10px;
+}
+
+.card .inner { background: grey; }
+
+.card h2 {
+  margin: 0;
+  color: #fff;
+  background-color: rgb(3,99,143);
+  border-bottom: 4px solid rgb(24,154,153);
+}
+
+.card footer {
+  background-color: rgb(182,222,211);
+}
+
+* { box-sizing: border-box; }
+
+item {
+  border: 1px solid;
+  grid-column: 2;
+}
+
+</style>
+<body>
+
+<div class="grid">
+
+   <div class="card">
+     <h2></h2>
+     <div class="inner">
+       <p>The contents.</p>
+     </div>
+     <footer>Footer contents</footer>
+   </div>
+
+    <item>1</item>
+    <item>2</item>
+    <item>3</item>
+
+    <div class="card">
+     <h2>My title</h2>
+     <div class="inner">
+       <p>The contents. I have a lot of content, more content than the other ones.</p>
+     </div>
+     <footer></footer>
+   </div>
+
+</div>
+
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-masking/parsing/clip-path-invalid.html b/tests/wpt/web-platform-tests/css/css-masking/parsing/clip-path-invalid.html
index 129d403ed6b..cf8aa251c38 100644
--- a/tests/wpt/web-platform-tests/css/css-masking/parsing/clip-path-invalid.html
+++ b/tests/wpt/web-platform-tests/css/css-masking/parsing/clip-path-invalid.html
@@ -45,6 +45,13 @@ test_invalid_value("clip-path", "ellipse(-50px 60px at 70% 80%)");
 test_invalid_value("clip-path", "polygon(1%)");
 
 test_invalid_value("clip-path", "unknown-box");
+
+test_invalid_value("clip-path", 'path(abc, "m 20 0 h -100 z")');
+test_invalid_value("clip-path", 'path(nonzero)');
+test_invalid_value("clip-path", 'path(evenodd, "")');
+test_invalid_value("clip-path", 'path("m 20 0 h -100", nonzero)');
+
+
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-masking/parsing/clip-path-valid.html b/tests/wpt/web-platform-tests/css/css-masking/parsing/clip-path-valid.html
index e734b9027f6..895cdfacac6 100644
--- a/tests/wpt/web-platform-tests/css/css-masking/parsing/clip-path-valid.html
+++ b/tests/wpt/web-platform-tests/css/css-masking/parsing/clip-path-valid.html
@@ -42,6 +42,14 @@ test_valid_value("clip-path", "polygon(1% 2%)");
 test_valid_value("clip-path", "polygon(nonzero, 1px 2px, 3em 4em)", "polygon(1px 2px, 3em 4em)");
 test_valid_value("clip-path", "polygon(evenodd, 1px 2px, 3em 4em, 5pt 6%)");
 
+// New supported shape in [css-shapes-2]
+// https://drafts.csswg.org/css-shapes-2/#supported-basic-shapes
+test_valid_value("clip-path", 'path("m 20 0 h -100")');
+test_valid_value("clip-path", 'path(evenodd, "M 20 20 h 60 v 60 h -60 Z M 30 30 h 40 v 40 h -40 Z")');
+test_valid_value("clip-path",
+  'path(nonzero, "M20,20h60 v60 h-60z M30,30 h40 v40 h-40z")',
+  'path("M 20 20 h 60 v 60 h -60 Z M 30 30 h 40 v 40 h -40 Z")');
+
 // <geometry-box>
 test_valid_value("clip-path", "border-box");
 test_valid_value("clip-path", "padding-box");
@@ -57,7 +65,7 @@ test_valid_value("clip-path", "circle(7% at 8% 9%) border-box");
 // <geometry-box> basic-shape>
 test_valid_value("clip-path", "border-box circle(7% at 8% 9%)");
 
-//  <clip-source>
+// <clip-source>
 test_valid_value("clip-path", "url(https://example.com/)", ["url(https://example.com/)", "url(\"https://example.com/\")"]);
 test_valid_value("clip-path", "url(\"https://example.com/\")", ["url(https://example.com/)", "url(\"https://example.com/\")"]);
 </script>
diff --git a/tests/wpt/web-platform-tests/css/css-writing-modes/direction-upright-001.html b/tests/wpt/web-platform-tests/css/css-writing-modes/direction-upright-001.html
new file mode 100644
index 00000000000..c9999951ab2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-writing-modes/direction-upright-001.html
@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<title>'text-orientation: upright' forces text to strong LTR in vertical typographic modes</title>
+<link rel=help href="https://www.w3.org/TR/css-writing-modes-3/#text-orientation">
+<link rel=match href="reference/direction-upright-001.html">
+<meta charset=utf-8>
+<style>
+  body > div {
+    border: solid silver;
+    float: left;
+    margin: 1em;
+    text-align: right;
+    font: 20px/1 sans-serif;
+  }
+  span { text-orientation: upright; }
+  hr { clear: both; }
+</style>
+
+<p>Test passes if both rows of boxes are identical (order, orientation, and arrangement of contents).
+
+<!-- test -->
+
+<div dir=rtl style="writing-mode: vertical-rl">
+ א ב <span>ג ד</span> <span>ה ו</span> ז<br>
+ ١ ٢ <span>٣ ٤</span> <span>٥ ٦</span> ٧
+</div>
+<div dir=rtl style="writing-mode: vertical-lr">
+ א ב <span>ג ד</span> <span>ה ו</span> ז<br>
+ ١ ٢ <span>٣ ٤</span> <span>٥ ٦</span> ٧
+</div>
+
+<!-- control -->
+
+<div dir=rtl>
+ א ב <span>ג ד</span> <span>ה ו</span> ז<br>
+ ١ ٢ <span>٣ ٤</span> <span>٥ ٦</span> ٧
+</div>
+<div dir=rtl style="writing-mode: sideways-rl">
+ א ב <span>ג ד</span> <span>ה ו</span> ז<br>
+ ١ ٢ <span>٣ ٤</span> <span>٥ ٦</span> ٧
+</div>
+<div dir=rtl style="writing-mode: sideways-lr">
+ א ב <span>ג ד</span> <span>ה ו</span> ז<br>
+ ١ ٢ <span>٣ ٤</span> <span>٥ ٦</span> ٧
+</div>
+
+<hr>
+
+<!-- reference -->
+
+<div style="writing-mode: vertical-rl">
+<bdo dir=ltr>
+ ז <span>ג ד</span> <span>ה ו</span> ב א<br>
+٧ <span>٣ ٤</span> <span>٥ ٦</span> ٢ ١
+</bdo>
+</div>
+<div style="writing-mode: vertical-lr">
+<bdo dir=ltr>
+ ז <span>ג ד</span> <span>ה ו</span> ב א<br>
+٧ <span>٣ ٤</span> <span>٥ ٦</span> ٢ ١
+</bdo>
+</div>
+
+<div dir=rtl> א ב ג ד ה ו ז<br>
+ ١ ٢ ٣ ٤ ٥ ٦ ٧
+</div>
+<div dir=rtl style="writing-mode: sideways-rl">
+ א ב ג ד ה ו ז<br>
+ ١ ٢ ٣ ٤ ٥ ٦ ٧
+</div>
+<div dir=rtl style="writing-mode: sideways-lr">
+ א ב ג ד ה ו ז<br>
+ ١ ٢ ٣ ٤ ٥ ٦ ٧
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-writing-modes/direction-upright-002.html b/tests/wpt/web-platform-tests/css/css-writing-modes/direction-upright-002.html
new file mode 100644
index 00000000000..daa76c8ea61
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-writing-modes/direction-upright-002.html
@@ -0,0 +1,138 @@
+<!DOCTYPE html>
+<title>'text-orientation: upright' forces used 'direction' to LTR in vertical typographic modes</title>
+<link rel=help href="https://www.w3.org/TR/css-writing-modes-3/#text-orientation">
+<link rel=help href="https://www.w3.org/TR/css-flexbox-1/#flex-direction-property">
+<link rel=help href="https://www.w3.org/TR/css-grid-1/#grid-auto-flow-property">
+<link rel=help href="https://www.w3.org/TR/css-ruby-1/#bidi">
+<link rel=match href="reference/direction-upright-002.html">
+
+<style>
+  body > div {
+    border: solid silver;
+    float: left;
+    margin: 1em;
+    border-inline-start-color: orange;
+    border-block-start-color: aqua;
+    border-inline-end-color: lime;
+    border-block-end-color: yellow;
+  }
+  colgroup:first-child { background: fuchsia; }
+  col:last-child { background: purple; }
+  .flex { display: flex; }
+  .grid { grid-template-columns: auto auto }
+  hr { clear: both }
+</style>
+
+<p>Test passes if both rows of boxes are identical (coloring, order, orientation, and arrangement of contents).
+
+<!-- test -->
+
+<div dir=rtl style="writing-mode: vertical-rl; text-orientation: upright">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div dir=rtl style="writing-mode: vertical-lr; text-orientation: upright">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+
+<!-- control -->
+
+<div dir=rtl style="text-orientation: upright">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div dir=rtl style="writing-mode: sideways-rl; text-orientation: upright">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div dir=rtl style="writing-mode: sideways-lr; text-orientation: upright">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+
+<hr>
+
+<!-- reference -->
+
+<div style="writing-mode: vertical-rl; text-orientation: upright">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div style="writing-mode: vertical-lr; text-orientation: upright">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+
+<div dir=rtl>
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div dir=rtl style="writing-mode: sideways-rl">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div dir=rtl style="writing-mode: sideways-lr">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/css/css-writing-modes/reference/direction-upright-001.html b/tests/wpt/web-platform-tests/css/css-writing-modes/reference/direction-upright-001.html
new file mode 100644
index 00000000000..b8768ba7724
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-writing-modes/reference/direction-upright-001.html
@@ -0,0 +1,71 @@
+<!DOCTYPE html>
+<title>Reftest Reference</title>
+<meta charset=utf-8>
+<style>
+  body > div {
+    border: solid silver;
+    float: left;
+    margin: 1em;
+    text-align: right;
+    font: 20px/1 sans-serif;
+  }
+  span { text-orientation: upright; }
+  hr { clear: both; }
+</style>
+
+<p>Test passes if both rows of boxes are identical (order, orientation, and arrangement of contents).
+
+
+<div style="writing-mode: vertical-rl">
+<bdo dir=ltr>
+ ז <span>ג ד</span> <span>ה ו</span> ב א<br>
+٧ <span>٣ ٤</span> <span>٥ ٦</span> ٢ ١
+</bdo>
+</div>
+<div style="writing-mode: vertical-lr">
+<bdo dir=ltr>
+ ז <span>ג ד</span> <span>ה ו</span> ב א<br>
+٧ <span>٣ ٤</span> <span>٥ ٦</span> ٢ ١
+</bdo>
+</div>
+
+<div dir=rtl> א ב ג ד ה ו ז<br>
+ ١ ٢ ٣ ٤ ٥ ٦ ٧
+</div>
+<div dir=rtl style="writing-mode: sideways-rl">
+ א ב ג ד ה ו ז<br>
+ ١ ٢ ٣ ٤ ٥ ٦ ٧
+</div>
+<div dir=rtl style="writing-mode: sideways-lr">
+ א ב ג ד ה ו ז<br>
+ ١ ٢ ٣ ٤ ٥ ٦ ٧
+</div>
+
+
+<hr>
+
+
+<div style="writing-mode: vertical-rl">
+<bdo dir=ltr>
+ ז <span>ג ד</span> <span>ה ו</span> ב א<br>
+٧ <span>٣ ٤</span> <span>٥ ٦</span> ٢ ١
+</bdo>
+</div>
+<div style="writing-mode: vertical-lr">
+<bdo dir=ltr>
+ ז <span>ג ד</span> <span>ה ו</span> ב א<br>
+٧ <span>٣ ٤</span> <span>٥ ٦</span> ٢ ١
+</bdo>
+</div>
+
+<div dir=rtl> א ב ג ד ה ו ז<br>
+ ١ ٢ ٣ ٤ ٥ ٦ ٧
+</div>
+<div dir=rtl style="writing-mode: sideways-rl">
+ א ב ג ד ה ו ז<br>
+ ١ ٢ ٣ ٤ ٥ ٦ ٧
+</div>
+<div dir=rtl style="writing-mode: sideways-lr">
+ א ב ג ד ה ו ז<br>
+ ١ ٢ ٣ ٤ ٥ ٦ ٧
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-writing-modes/reference/direction-upright-002.html b/tests/wpt/web-platform-tests/css/css-writing-modes/reference/direction-upright-002.html
new file mode 100644
index 00000000000..eac7ca9af92
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-writing-modes/reference/direction-upright-002.html
@@ -0,0 +1,127 @@
+<!DOCTYPE html>
+<title>Reftest Reference</title>
+
+<style>
+  body > div {
+    border: solid silver;
+    float: left;
+    margin: 1em;
+    border-inline-start-color: orange;
+    border-block-start-color: aqua;
+    border-inline-end-color: lime;
+    border-block-end-color: yellow;
+  }
+  colgroup:first-child { background: fuchsia; }
+  col:last-child { background: purple; }
+  .flex { display: flex; }
+  .grid { grid-template-columns: auto auto }
+  hr { clear: both }
+</style>
+
+<p>Test passes if both rows of boxes are identical (coloring, order, orientation, and arrangement of contents).
+
+<div style="writing-mode: vertical-rl; text-orientation: upright">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div style="writing-mode: vertical-lr; text-orientation: upright">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+
+<div dir=rtl>
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div dir=rtl style="writing-mode: sideways-rl">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div dir=rtl style="writing-mode: sideways-lr">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+
+<hr>
+
+<div style="writing-mode: vertical-rl; text-orientation: upright">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div style="writing-mode: vertical-lr; text-orientation: upright">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+
+<div dir=rtl>
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div dir=rtl style="writing-mode: sideways-rl">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
+<div dir=rtl style="writing-mode: sideways-lr">
+  <table>
+    <colgroup></colgroup>
+    <colgroup><col><col></colgroup>
+    <tr><td>A<td>B<td>C
+  </table>
+  <div class=flex>A <span>B</span></div>
+  <div class=grid>A <span>B</span></div>
+  <div>A <ruby>B<rt>b</rt> C<rt>c</rt></ruby><ruby>D<rt>d</rt> E<rt>e</rt></ruby></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/cssom-view/offsetTopLeft-border-box.html b/tests/wpt/web-platform-tests/css/cssom-view/offsetTopLeft-border-box.html
new file mode 100644
index 00000000000..8cabf6478f7
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/cssom-view/offsetTopLeft-border-box.html
@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/cssom-view/#extensions-to-the-htmlelement-interface">
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+
+.container {
+  position: relative;
+  font: 20px/1 Ahem;
+  width: 150px;
+  height: 100px;
+  padding: 2px 10px;
+  border-width: 3px 6px;
+  border-style: solid;
+  box-sizing: border-box;
+}
+
+.target { background: grey; }
+.hl { writing-mode:horizontal-tb; }
+.vlr { writing-mode:vertical-lr; }
+</style>
+<div id=tests>
+<div class="container hl">
+  <span class="target">x</span>
+</div>
+<div class="container vlr">
+  <span class="target">x</span>
+</div>
+<div class="container hl">
+  <div class="target">x</div>
+</div>
+<div class="container vlr">
+  <div class="target">x</div>
+</div>
+</div>
+<script>
+setup({explicit_done: true});
+onload = () => {
+  // Clone the above tests for the following 'display' types:
+  let display = ['inline-block', 'grid', 'inline-grid', 'flex', 'inline-flex', 'flow-root' ];
+  let tests = document.querySelector('#tests');
+  display.forEach((display) => {
+    let t = tests.cloneNode(true);
+    [...t.children].forEach((child) => {
+      child.setAttribute("style", "display:"+display);
+    });
+    document.body.appendChild(t);
+  });
+  // Check that all of them return an offset relative the padding edge.
+  var i = 0;
+  document.querySelectorAll('.target').forEach((target) => {
+    test(() => {
+      assert_equals(target.offsetLeft, 10, 'offsetLeft');
+      assert_equals(target.offsetTop, 2, 'offsetTop');
+    }, 'container: ' + i);
+    i++;
+  });
+  done();
+};
+</script>
diff --git a/tests/wpt/web-platform-tests/html/dom/elements-forms.js b/tests/wpt/web-platform-tests/html/dom/elements-forms.js
index 051bc2087f3..448a72f5ed6 100644
--- a/tests/wpt/web-platform-tests/html/dom/elements-forms.js
+++ b/tests/wpt/web-platform-tests/html/dom/elements-forms.js
@@ -27,7 +27,6 @@ var formElements = {
     accept: "string",
     alt: "string",
     autocomplete: {type: "string", customGetter: true},
-    autofocus: "boolean",
     defaultChecked: {type: "boolean", domAttrName: "checked"},
     dirName: "string",
     disabled: "boolean",
@@ -65,7 +64,6 @@ var formElements = {
     useMap: "string",
   },
   button: {
-    autofocus: "boolean",
     disabled: "boolean",
     // "formAction" has magic hard-coded in reflection.js
     formAction: "url",
@@ -79,7 +77,6 @@ var formElements = {
   },
   select: {
     autocomplete: {type: "string", customGetter: true},
-    autofocus: "boolean",
     disabled: "boolean",
     multiple: "boolean",
     name: "string",
@@ -99,7 +96,6 @@ var formElements = {
   },
   textarea: {
     autocomplete: {type: "string", customGetter: true},
-    autofocus: "boolean",
     cols: {type: "limited unsigned long with fallback", defaultVal: 20},
     dirName: "string",
     disabled: "boolean",
diff --git a/tests/wpt/web-platform-tests/html/dom/reflection.js b/tests/wpt/web-platform-tests/html/dom/reflection.js
index 5209762660b..fca9e43f245 100644
--- a/tests/wpt/web-platform-tests/html/dom/reflection.js
+++ b/tests/wpt/web-platform-tests/html/dom/reflection.js
@@ -900,6 +900,7 @@ for (var element in elements) {
     ReflectionTests.reflects({type: "enum", keywords: ["ltr", "rtl", "auto"]}, "dir", element);
     ReflectionTests.reflects("string", "className", element, "class");
     ReflectionTests.reflects("tokenlist", "classList", element, "class");
+    ReflectionTests.reflects("boolean", "autofocus", element);
     ReflectionTests.reflects("boolean", "hidden", element);
     ReflectionTests.reflects("string", "accessKey", element);
     // Don't try to test the defaultVal -- it should be either 0 or -1, but the
diff --git a/tests/wpt/web-platform-tests/html/semantics/forms/autofocus/supported-elements.html b/tests/wpt/web-platform-tests/html/semantics/forms/autofocus/supported-elements.html
index 398577e7d51..761936715a3 100644
--- a/tests/wpt/web-platform-tests/html/semantics/forms/autofocus/supported-elements.html
+++ b/tests/wpt/web-platform-tests/html/semantics/forms/autofocus/supported-elements.html
@@ -19,7 +19,7 @@ promise_test(async t => {
   let w = window.open('/common/blank.html');
   await waitForLoad(w);
   t.add_cleanup(() => { w.close(); });
-  w.document.body.innerHTML = '<span tabindex=0></span>';
+  w.document.body.innerHTML = '<span tabindex=0 autofocus></span>';
   await waitUntilStableAutofocusState(w);
   assert_equals(w.document.activeElement.tagName, 'SPAN');
 }, 'Element with tabindex should support autofocus');
diff --git a/tests/wpt/web-platform-tests/interfaces/cookie-store.idl b/tests/wpt/web-platform-tests/interfaces/cookie-store.idl
index f5c44b60bd0..533884fdb58 100644
--- a/tests/wpt/web-platform-tests/interfaces/cookie-store.idl
+++ b/tests/wpt/web-platform-tests/interfaces/cookie-store.idl
@@ -7,13 +7,13 @@
  SecureContext]
 interface CookieStore : EventTarget {
   Promise<CookieListItem?> get(USVString name);
-  Promise<CookieListItem?> get(optional CookieStoreGetOptions options);
+  Promise<CookieListItem?> get(optional CookieStoreGetOptions options = {});
 
   Promise<CookieList> getAll(USVString name);
-  Promise<CookieList> getAll(optional CookieStoreGetOptions options);
+  Promise<CookieList> getAll(optional CookieStoreGetOptions options = {});
 
   Promise<void> set(USVString name, USVString value,
-                    optional CookieStoreSetOptions options);
+                    optional CookieStoreSetOptions options = {});
   Promise<void> set(CookieStoreSetExtraOptions options);
 
   Promise<void> delete(USVString name);
diff --git a/tests/wpt/web-platform-tests/interfaces/geometry.idl b/tests/wpt/web-platform-tests/interfaces/geometry.idl
index d4793228dd0..ada6c0c302c 100644
--- a/tests/wpt/web-platform-tests/interfaces/geometry.idl
+++ b/tests/wpt/web-platform-tests/interfaces/geometry.idl
@@ -3,11 +3,12 @@
 // (https://github.com/tidoust/reffy-reports)
 // Source: Geometry Interfaces Module Level 1 (https://drafts.fxtf.org/geometry/)
 
-[Constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
-             optional unrestricted double z = 0, optional unrestricted double w = 1),
- Exposed=(Window,Worker),
+[Exposed=(Window,Worker),
  Serializable]
 interface DOMPointReadOnly {
+    constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
+            optional unrestricted double z = 0, optional unrestricted double w = 1);
+
     [NewObject] static DOMPointReadOnly fromPoint(optional DOMPointInit other = {});
 
     readonly attribute unrestricted double x;
@@ -20,12 +21,13 @@ interface DOMPointReadOnly {
     [Default] object toJSON();
 };
 
-[Constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
-             optional unrestricted double z = 0, optional unrestricted double w = 1),
- Exposed=(Window,Worker),
+[Exposed=(Window,Worker),
  Serializable,
  LegacyWindowAlias=SVGPoint]
 interface DOMPoint : DOMPointReadOnly {
+    constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
+            optional unrestricted double z = 0, optional unrestricted double w = 1);
+
     [NewObject] static DOMPoint fromPoint(optional DOMPointInit other = {});
 
     inherit attribute unrestricted double x;
@@ -41,11 +43,12 @@ dictionary DOMPointInit {
     unrestricted double w = 1;
 };
 
-[Constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
-             optional unrestricted double width = 0, optional unrestricted double height = 0),
- Exposed=(Window,Worker),
+[Exposed=(Window,Worker),
  Serializable]
 interface DOMRectReadOnly {
+    constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
+            optional unrestricted double width = 0, optional unrestricted double height = 0);
+
     [NewObject] static DOMRectReadOnly fromRect(optional DOMRectInit other = {});
 
     readonly attribute unrestricted double x;
@@ -60,12 +63,13 @@ interface DOMRectReadOnly {
     [Default] object toJSON();
 };
 
-[Constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
-             optional unrestricted double width = 0, optional unrestricted double height = 0),
- Exposed=(Window,Worker),
+[Exposed=(Window,Worker),
  Serializable,
  LegacyWindowAlias=SVGRect]
 interface DOMRect : DOMRectReadOnly {
+    constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
+            optional unrestricted double width = 0, optional unrestricted double height = 0);
+
     [NewObject] static DOMRect fromRect(optional DOMRectInit other = {});
 
     inherit attribute unrestricted double x;
@@ -87,11 +91,12 @@ interface DOMRectList {
     getter DOMRect? item(unsigned long index);
 };
 
-[Constructor(optional DOMPointInit p1 = {}, optional DOMPointInit p2 = {},
-             optional DOMPointInit p3 = {}, optional DOMPointInit p4 = {}),
- Exposed=(Window,Worker),
+[Exposed=(Window,Worker),
  Serializable]
 interface DOMQuad {
+    constructor(optional DOMPointInit p1 = {}, optional DOMPointInit p2 = {},
+            optional DOMPointInit p3 = {}, optional DOMPointInit p4 = {});
+
     [NewObject] static DOMQuad fromRect(optional DOMRectInit other = {});
     [NewObject] static DOMQuad fromQuad(optional DOMQuadInit other = {});
 
@@ -111,10 +116,11 @@ dictionary DOMQuadInit {
   DOMPointInit p4;
 };
 
-[Constructor(optional (DOMString or sequence<unrestricted double>) init),
- Exposed=(Window,Worker),
+[Exposed=(Window,Worker),
  Serializable]
 interface DOMMatrixReadOnly {
+    constructor(optional (DOMString or sequence<unrestricted double>) init);
+
     [NewObject] static DOMMatrixReadOnly fromMatrix(optional DOMMatrixInit other = {});
     [NewObject] static DOMMatrixReadOnly fromFloat32Array(Float32Array array32);
     [NewObject] static DOMMatrixReadOnly fromFloat64Array(Float64Array array64);
@@ -187,11 +193,12 @@ interface DOMMatrixReadOnly {
     [Default] object toJSON();
 };
 
-[Constructor(optional (DOMString or sequence<unrestricted double>) init),
- Exposed=(Window,Worker),
+[Exposed=(Window,Worker),
  Serializable,
  LegacyWindowAlias=(SVGMatrix,WebKitCSSMatrix)]
 interface DOMMatrix : DOMMatrixReadOnly {
+    constructor(optional (DOMString or sequence<unrestricted double>) init);
+
     [NewObject] static DOMMatrix fromMatrix(optional DOMMatrixInit other = {});
     [NewObject] static DOMMatrix fromFloat32Array(Float32Array array32);
     [NewObject] static DOMMatrix fromFloat64Array(Float64Array array64);
diff --git a/tests/wpt/web-platform-tests/interfaces/pointerevents.idl b/tests/wpt/web-platform-tests/interfaces/pointerevents.idl
index 40364530d89..85a25aa444e 100644
--- a/tests/wpt/web-platform-tests/interfaces/pointerevents.idl
+++ b/tests/wpt/web-platform-tests/interfaces/pointerevents.idl
@@ -16,8 +16,9 @@ dictionary PointerEventInit : MouseEventInit {
     boolean     isPrimary = false;
 };
 
-[Constructor(DOMString type, optional PointerEventInit eventInitDict = {}), Exposed=Window]
+[Exposed=Window]
 interface PointerEvent : MouseEvent {
+    constructor(DOMString type, optional PointerEventInit eventInitDict = {});
     readonly        attribute long        pointerId;
     readonly        attribute double      width;
     readonly        attribute double      height;
diff --git a/tests/wpt/web-platform-tests/interfaces/reporting.idl b/tests/wpt/web-platform-tests/interfaces/reporting.idl
index ef20b984469..797922af064 100644
--- a/tests/wpt/web-platform-tests/interfaces/reporting.idl
+++ b/tests/wpt/web-platform-tests/interfaces/reporting.idl
@@ -12,8 +12,8 @@ interface Report {
   readonly attribute ReportBody? body;
 };
 
-[Constructor(ReportingObserverCallback callback, optional ReportingObserverOptions options)]
 interface ReportingObserver {
+  constructor(ReportingObserverCallback callback, optional ReportingObserverOptions options = {});
   void observe();
   void disconnect();
   ReportList takeRecords();
diff --git a/tests/wpt/web-platform-tests/interfaces/web-animations.idl b/tests/wpt/web-platform-tests/interfaces/web-animations.idl
index 72ac87f3e33..82681e588b7 100644
--- a/tests/wpt/web-platform-tests/interfaces/web-animations.idl
+++ b/tests/wpt/web-platform-tests/interfaces/web-animations.idl
@@ -97,7 +97,6 @@ dictionary ComputedEffectTiming : EffectTiming {
  Constructor(KeyframeEffect source)]
 interface KeyframeEffect : AnimationEffect {
     attribute (Element or CSSPseudoElement)? target;
-    attribute IterationCompositeOperation    iterationComposite;
     attribute CompositeOperation             composite;
     sequence<object> getKeyframes();
     void             setKeyframes(object? keyframes);
@@ -123,12 +122,9 @@ dictionary BaseKeyframe {
 };
 
 dictionary KeyframeEffectOptions : EffectTiming {
-    IterationCompositeOperation iterationComposite = "replace";
     CompositeOperation          composite = "replace";
 };
 
-enum IterationCompositeOperation { "replace", "accumulate" };
-
 enum CompositeOperation { "replace", "add", "accumulate" };
 
 enum CompositeOperationOrAuto { "replace", "add", "accumulate", "auto" };
diff --git a/tests/wpt/web-platform-tests/interfaces/webmidi.idl b/tests/wpt/web-platform-tests/interfaces/webmidi.idl
index 0dfcb7771a8..aa3b1ac21c8 100644
--- a/tests/wpt/web-platform-tests/interfaces/webmidi.idl
+++ b/tests/wpt/web-platform-tests/interfaces/webmidi.idl
@@ -4,7 +4,8 @@
 // Source: Web MIDI API (http://webaudio.github.io/web-midi-api/)
 
 partial interface Navigator {
-  [SecureContext] Promise <MIDIAccess> requestMIDIAccess(optional MIDIOptions options = {});
+  [SecureContext]
+  Promise <MIDIAccess> requestMIDIAccess(optional MIDIOptions options = {});
 };
 
 dictionary MIDIOptions {
@@ -65,8 +66,9 @@ enum MIDIPortConnectionState {
   "pending",
 };
 
-[SecureContext, Exposed=Window, Constructor(DOMString type, optional MIDIMessageEventInit eventInitDict = {})]
+[SecureContext, Exposed=Window]
 interface MIDIMessageEvent : Event {
+  constructor(DOMString type, optional MIDIMessageEventInit eventInitDict = {});
   readonly attribute Uint8Array data;
 };
 
@@ -74,8 +76,9 @@ dictionary MIDIMessageEventInit : EventInit {
   Uint8Array data;
 };
 
-[SecureContext, Exposed=Window, Constructor(DOMString type, optional MIDIConnectionEventInit eventInitDict = {})]
+[SecureContext, Exposed=Window]
 interface MIDIConnectionEvent : Event {
+  constructor(DOMString type, optional MIDIConnectionEventInit eventInitDict = {});
   readonly attribute MIDIPort port;
 };
 
diff --git a/tests/wpt/web-platform-tests/interfaces/webrtc-stats.idl b/tests/wpt/web-platform-tests/interfaces/webrtc-stats.idl
index 510538decc5..ab437ce0ee1 100644
--- a/tests/wpt/web-platform-tests/interfaces/webrtc-stats.idl
+++ b/tests/wpt/web-platform-tests/interfaces/webrtc-stats.idl
@@ -22,7 +22,7 @@ enum RTCStatsType {
 "local-candidate",
 "remote-candidate",
 "certificate",
-"stunserverconnection"
+"ice-server"
 };
 
 dictionary RTCRtpStreamStats : RTCStats {
@@ -61,6 +61,9 @@ dictionary RTCReceivedRtpStreamStats : RTCRtpStreamStats {
              double burstDiscardRate;
              double gapLossRate;
              double gapDiscardRate;
+             unsigned long framesDropped;
+             unsigned long partialFramesLost;
+             unsigned long fullFramesLost;
 };
 
 dictionary RTCInboundRtpStreamStats : RTCReceivedRtpStreamStats {
@@ -100,9 +103,6 @@ dictionary RTCInboundRtpStreamStats : RTCReceivedRtpStreamStats {
  double totalAudioEnergy;
  double totalSamplesDuration;
  unsigned long framesReceived;
- unsigned long framesDropped;
- unsigned long partialFramesLost;
- unsigned long fullFramesLost;
  DOMString decoderImplementation;
 };
 
@@ -114,10 +114,7 @@ dictionary RTCRemoteInboundRtpStreamStats : RTCReceivedRtpStreamStats {
 
 dictionary RTCSentRtpStreamStats : RTCRtpStreamStats {
              unsigned long packetsSent;
-             unsigned long packetsDiscardedOnSend;
-             unsigned long fecPacketsSent;
              unsigned long long bytesSent;
-             unsigned long long bytesDiscardedOnSend;
 };
 
 dictionary RTCOutboundRtpStreamStats : RTCSentRtpStreamStats {
@@ -126,6 +123,9 @@ dictionary RTCOutboundRtpStreamStats : RTCSentRtpStreamStats {
              DOMString senderId;
              DOMString remoteId;
              DOMHighResTimeStamp lastPacketSentTimestamp;
+             unsigned long packetsDiscardedOnSend;
+             unsigned long long bytesDiscardedOnSend;
+             unsigned long fecPacketsSent;
              unsigned long long retransmittedPacketsSent;
              unsigned long long retransmittedBytesSent;
              double targetBitrate;
@@ -137,6 +137,7 @@ dictionary RTCOutboundRtpStreamStats : RTCSentRtpStreamStats {
              unsigned long hugeFramesSent;
              unsigned long framesEncoded;
              unsigned long keyFramesEncoded;
+             unsigned long framesDiscardedOnSend;
              unsigned long long qpSum;
              unsigned long long totalSamplesSent;
              boolean voiceActivityFlag;
@@ -319,6 +320,8 @@ dictionary RTCIceCandidatePairStats : RTCStats {
              unsigned long long retransmissionsSent;
              unsigned long long consentRequestsSent;
              DOMHighResTimeStamp consentExpiredTimestamp;
+             unsigned long packetsDiscardedOnSend;
+             unsigned long long bytesDiscardedOnSend;
 };
 
 enum RTCStatsIceCandidatePairState {
@@ -336,7 +339,7 @@ dictionary RTCCertificateStats : RTCStats {
              DOMString issuerCertificateId;
 };
 
-dictionary RTCStunServerConnectionStats : RTCStats {
+dictionary RTCIceServerStats : RTCStats {
            DOMString url;
            long port;
            DOMString protocol;
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/menclose/legacy-menclose-radical-notation-ref.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/menclose/legacy-menclose-radical-notation-ref.html
new file mode 100644
index 00000000000..f0b5bdd9f04
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/menclose/legacy-menclose-radical-notation-ref.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8"/>
+    <title>Legacy menclose radical notation (reference)</title>
+    <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+    <style>
+      math, math * {
+          font: 25px Ahem;
+      }
+    </style>
+  </head>
+  <body>
+    <math>
+      <menclose>
+        <mn>123</mn>
+      </menclose>
+    </math>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/menclose/legacy-menclose-radical-notation.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/menclose/legacy-menclose-radical-notation.html
new file mode 100644
index 00000000000..d7f0627059a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/menclose/legacy-menclose-radical-notation.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8"/>
+    <title>Legacy menclose radical notation</title>
+    <link rel="help" href="https://www.w3.org/TR/MathML3/chapter3.html#presm.menclose">
+    <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#enclose-expression-inside-notation-menclose">
+    <meta name="assert" content="Verify that the legacy menclose radical notation is not supported.">
+    <link rel="match" href="legacy-menclose-radical-notation-ref.html">
+    <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+    <style>
+      math, math * {
+          font: 25px Ahem;
+      }
+    </style>
+  </head>
+  <body>
+    <math>
+      <menclose notation="radical">
+        <mn>123</mn>
+      </menclose>
+    </math>
+
+   <script src="/mathml/support/feature-detection.js"></script>
+   <script>MathMLFeatureDetection.ensure_for_match_reftest("has_menclose");</script>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/legacy-mstyle-attributes.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/legacy-mstyle-attributes.html
new file mode 100644
index 00000000000..0de9a90eed9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/legacy-mstyle-attributes.html
@@ -0,0 +1,163 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>Legacy mstyle attributes</title>
+<link rel="help" href="https://www.w3.org/TR/MathML3/chapter3.html#presm.mstyle">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#style-change-mstyle">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#space-mspace">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#fractions-mfrac">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#operator-fence-separator-or-accent-mo">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#string-literal-ms">
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#enclose-expression-inside-notation-menclose">
+<meta name="assert" content="Legacy mstyle attributes are ignored">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/mathml/support/feature-detection.js"></script>
+<script src="/mathml/support/layout-comparison.js"></script>
+<script type="text/javascript">
+  setup({ explicit_done: true });
+  window.addEventListener("load", runTests);
+  function runTests()
+  {
+      Array.from(document.getElementsByClassName("TestContainer")).forEach(container => {
+          const tag = container.id;
+          test(function() {
+              assert_true(MathMLFeatureDetection[`has_${tag}`](), `${tag} is supported`);
+              const epsilon = 1;
+              const math = container.getElementsByTagName("math");
+              compareLayout(math[0], math[1], epsilon);
+          }, `Legacy mstyle attributes do not apply to ${tag}`);
+      });
+      done();
+  }
+</script>
+</head>
+<body>
+  <div id="log"></div>
+  <!-- Note: mpadded attributes are not tested since MathML3 did not allow to
+       set them from mstyle. Also, it is not clear whether munderover's
+       accent/accentunder could be applied from mstyle, given that the former
+       clashes with mo@accent. Other legacy mstyle attributes not in MathML
+       Core or without visual effect are not tested.
+    -->
+  <p class="TestContainer" id="mspace">
+    <math>
+      <mstyle width="50px" height="50px" depth="50px">
+        <mspace style="background: lightblue"></mspace>
+      </mstyle>
+    </math>
+    <math>
+      <mstyle>
+        <mspace style="background: lightblue"></mspace>
+      </mstyle>
+    </math>
+  </p>
+  <p class="TestContainer" id="mfrac">
+    <math>
+      <mstyle linethickness="50px">
+        <mfrac>
+          <mn>1</mn>
+          <mn>2</mn>
+        </mfrac>
+      </mstyle>
+    </math>
+    <math>
+      <mstyle>
+        <mfrac>
+          <mn>1</mn>
+          <mn>2</mn>
+        </mfrac>
+      </mstyle>
+    </math>
+  </p>
+  <p class="TestContainer" id="mo">
+    <math displaystyle="true">
+      <mstyle lspace="50px" rspace="50px">
+        <mn>1</mn>
+        <mo>A</mo>
+        <mn>2</mn>
+      </mstyle>
+      <mstyle movablelimits="false" largeop="false">
+        <munder>
+          <mo>∑</mo>
+          <mn>3</mn>
+        </munder>
+      </mstyle>
+      <mstyle accent="false">
+        <mover>
+          <mn>4</mn>
+          <mo>⇀</mo>
+        </mover>
+      </mstyle>
+      <mstyle stretchy="false" symmetric="false" maxsize="20px">
+        <mrow>
+          <mo>|</mo>
+          <mspace height="100px"></mspace>
+        </mrow>
+      </mstyle>
+      <mstyle minsize="100px">
+        <mrow>
+          <mo>|</mo>
+          <mn>4</mn>
+        </mrow>
+      </mstyle>
+    </math>
+    <math displaystyle="true">
+      <mstyle>
+        <mn>1</mn>
+        <mo>A</mo>
+        <mn>2</mn>
+      </mstyle>
+      <mstyle>
+        <munder>
+          <mo>∑</mo>
+          <mn>3</mn>
+        </munder>
+      </mstyle>
+      <mstyle>
+        <mover>
+          <mn>4</mn>
+          <mo>⇀</mo>
+        </mover>
+      </mstyle>
+      <mstyle>
+        <mrow>
+          <mo>|</mo>
+          <mspace height="100px"></mspace>
+        </mrow>
+      </mstyle>
+      <mstyle>
+        <mrow>
+          <mo>|</mo>
+          <mn>4</mn>
+        </mrow>
+      </mstyle>
+    </math>
+  </p>
+  <p class="TestContainer" id="menclose">
+    <math>
+      <mstyle notation="box">
+        <mn>1</mn>
+      </mstyle>
+    </math>
+    <math>
+      <mstyle>
+        <mn>1</mn>
+      </mstyle>
+    </math>
+  </p>
+  <p class="TestContainer" id="ms">
+    <math>
+      <mstyle lquote="AAAA" rquote="BBBB">
+        <ms>1</ms>
+      </mstyle>
+    </math>
+    <math>
+      <mstyle>
+        <ms>1</ms>
+      </mstyle>
+    </math>
+  </p>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/attribute-mapping-001.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/attribute-mapping-001.html
index c0c91dc23d1..e7c6391ebad 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/attribute-mapping-001.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/attribute-mapping-001.html
@@ -8,6 +8,7 @@
 <meta name="assert" content="Verify that dir, mathcolor, mathbackground and mathsize are mapped to CSS but that deprecated MathML3 attributes are not.">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
+<script src="/mathml/support/feature-detection.js"></script>
 <script src="/mathml/support/mathml-fragments.js"></script>
 <style>
   #container {
@@ -72,6 +73,7 @@
           }, `mathsize on the ${tag} element is mapped to CSS font-size`);
 
           test(function() {
+              assert_true(MathMLFeatureDetection.has_mathsize(), "Superseding attributes are supported");
               var properties = ["background-color", "color", "fontfamily", "font-size", "font-style", "font-weight"];
               var oldStyle = {};
               properties.forEach(property => {
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-011.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-011.html
index 9a85a17dd0f..a73031aa3d8 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-011.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-011.html
@@ -162,5 +162,7 @@
       </mstyle>
     </math>
 
+    <script src="/mathml/support/feature-detection.js"></script>
+    <script>MathMLFeatureDetection.ensure_for_match_reftest("has_movablelimits");</script>
   </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-012.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-012.html
index 150443f2527..7572361f630 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-012.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-012.html
@@ -31,5 +31,7 @@
       </mstyle>
     </math>
 
+    <script src="/mathml/support/feature-detection.js"></script>
+    <script>MathMLFeatureDetection.ensure_for_match_reftest("has_movablelimits");</script>
   </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-013.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-013.html
index 30be35c0247..2ed4559908b 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-013.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-013.html
@@ -73,5 +73,7 @@
       </mtable>
     </math>
 
+    <script src="/mathml/support/feature-detection.js"></script>
+    <script>MathMLFeatureDetection.ensure_for_match_reftest("has_movablelimits");</script>
   </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-014.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-014.html
index d54a8043788..1e70cb66f3f 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-014.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-014.html
@@ -48,5 +48,7 @@
       </mstyle>
     </math>
 
+    <script src="/mathml/support/feature-detection.js"></script>
+    <script>MathMLFeatureDetection.ensure_for_match_reftest("has_mfrac");</script>
   </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-015.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-015.html
index df25171dbd6..a288aac8196 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-015.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/displaystyle-015.html
@@ -76,5 +76,8 @@
         </munderover>
       </mstyle>
     </math>
+
+    <script src="/mathml/support/feature-detection.js"></script>
+    <script>MathMLFeatureDetection.ensure_for_match_reftest("has_movablelimits");</script>
   </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/mathsize-attribute-css-keywords.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/mathsize-attribute-css-keywords.html
index 9b3852d0b37..6390ebfabaf 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/mathsize-attribute-css-keywords.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/mathsize-attribute-css-keywords.html
@@ -7,6 +7,7 @@
     <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#legacy-mathml-style-attributes">
     <meta name="assert" content="Verify that CSS font-size keywords are invalid for the mathsize attribute.">
     <link rel="match" href="mathsize-attribute-css-keywords-ref.html">
+    <script src="/mathml/support/feature-detection.js"></script>
   </head>
   <body>
     <p>Test passes if you see ten "A" of equal size:</p>
@@ -22,5 +23,7 @@
       <mtext mathsize="larger">A</mtext>
       <mtext mathsize="smaller">A</mtext>
     </math>
+   <script src="/mathml/support/feature-detection.js"></script>
+   <script>MathMLFeatureDetection.ensure_for_match_reftest("has_mathsize");</script>
   </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/css-styling/mathsize-attribute-legacy-values.html b/tests/wpt/web-platform-tests/mathml/relations/css-styling/mathsize-attribute-legacy-values.html
index 745b1033718..abddf52590c 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/css-styling/mathsize-attribute-legacy-values.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/css-styling/mathsize-attribute-legacy-values.html
@@ -7,6 +7,7 @@
     <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#legacy-mathml-style-attributes">
     <meta name="assert" content="Verify that legacy values for mathsize have no effect.">
     <link rel="match" href="mathsize-attribute-legacy-values-ref.html">
+    <script src="/mathml/support/feature-detection.js"></script>
   </head>
   <body>
     <p>Test passes if you see four "A" of equal size:</p>
@@ -16,5 +17,7 @@
       <mtext mathsize="medium">A</mtext>
       <mtext mathsize="big">A</mtext>
     </math>
+   <script src="/mathml/support/feature-detection.js"></script>
+   <script>MathMLFeatureDetection.ensure_for_match_reftest("has_mathsize");</script>
   </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/clipboard-event-handlers.tentative.html b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/clipboard-event-handlers.tentative.html
index 57ababb4a91..82fda880887 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/clipboard-event-handlers.tentative.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/clipboard-event-handlers.tentative.html
@@ -24,23 +24,22 @@
   const EVENTS = ["copy", "cut", "paste"];
   const el = document.querySelector("math");
 
-  function addEventListenerTest(name) {
+  function dispatchEventTest(name) {
+    const mathEl = document.createElementNS(
+        "http://www.w3.org/1998/Math/MathML",
+        "math"
+    );
     async_test(test => {
-      el.addEventListener(
-        name,
-        test.step_func_done(e => {
-          assert_true(
-            true,
-            "MathML Elements should be able to receive ${name} events"
-          );
-        })
-      );
+      mathEl[`on${name}`] = test.step_func_done(e => {
+        assert_equals(e.currentTarget, mathEl,
+                      "The event must be fired at the <math> element");
+      });
       const event = new ClipboardEvent(name, {
         bubbles: true,
         cancellable: true
       });
-      el.dispatchEvent(event);
-    }, `math.addEventListener for ${name}`);
+      mathEl.dispatchEvent(event);
+    }, `${name}: dispatching an Event at a <math> element must trigger element.on${name}`);
   }
 
   function evaluatedHandlerTest(name) {
@@ -115,7 +114,7 @@
   }
 
   EVENTS.forEach(name => {
-    addEventListenerTest(name);
+    dispatchEventTest(name);
     evaluatedHandlerTest(name);
   });
 </script>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/display-2-ref.html b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/display-2-ref.html
new file mode 100644
index 00000000000..7864c040991
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/display-2-ref.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8"/>
+<title>display attribute VS legacy mode attribute (reference)</title>
+</head>
+<body>
+  <p>Test passes if you see four green squares, the last one
+    centered and the others left-aligned.</p>
+  <p>
+    <math>
+      <mspace width="100px" height="100px" style="background: green"></mspace>
+    </math>
+  </p>
+  <p>
+    <math>
+      <mspace width="100px" height="100px" style="background: green"></mspace>
+    </math>
+  </p>
+  <p>
+    <math display="inline">
+      <mspace width="100px" height="100px" style="background: green"></mspace>
+    </math>
+  </p>
+  <p>
+    <math display="block">
+      <mspace width="100px" height="100px" style="background: green"></mspace>
+    </math>
+  </p>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/display-2.html b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/display-2.html
new file mode 100644
index 00000000000..d1c68e57c6e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/display-2.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8"/>
+<title>display attribute VS legacy mode attribute</title>
+<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#the-top-level-math-element">
+<link rel="help" href="https://www.w3.org/TR/MathML3/chapter2.html#id.2.2.2">
+<link rel="match" href="display-2-ref.html"/>
+<meta name="assert" content="Verify that the legacy mode attribute has no effect.">
+</head>
+<body>
+  <p>Test passes if you see four green squares, the last one
+    centered and the others left-aligned.</p>
+  <p>
+    <math mode="inline">
+      <mspace width="100px" height="100px" style="background: green"></mspace>
+    </math>
+  </p>
+  <p>
+    <math mode="display">
+      <mspace width="100px" height="100px" style="background: green"></mspace>
+    </math>
+  </p>
+  <p>
+    <math display="inline" mode="display">
+      <mspace width="100px" height="100px" style="background: green"></mspace>
+    </math>
+  </p>
+  <p>
+    <math display="block" mode="inline">
+      <mspace width="100px" height="100px" style="background: green"></mspace>
+    </math>
+  </p>
+  <script src="/mathml/support/feature-detection.js"></script>
+  <script>MathMLFeatureDetection.ensure_for_match_reftest("has_mspace");</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/math-global-event-handlers.tentative.html b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/math-global-event-handlers.tentative.html
index b5b9c75dac1..e96feeaf096 100644
--- a/tests/wpt/web-platform-tests/mathml/relations/html5-tree/math-global-event-handlers.tentative.html
+++ b/tests/wpt/web-platform-tests/mathml/relations/html5-tree/math-global-event-handlers.tentative.html
@@ -124,18 +124,18 @@
           assert_equals(el[name], null, `The ${name} property must be null (remove attribute)`);
         }, `${name}: dynamic changes on the attribute`);
 
-        test(() => {
+        async_test(t => {
           const element = document.createElementNS(
             "http://www.w3.org/1998/Math/MathML",
             "math"
           );
-          element[name] = e => {
+          element[name] = t.step_func_done(e => {
             assert_equals(
               e.currentTarget,
               element,
               "The event must be fired at the <math> element"
             );
-          };
+          });
 
           element.dispatchEvent(new Event(withoutOn));
         }, `${name}: dispatching an Event at a <math> element must trigger element.${name}`);
diff --git a/tests/wpt/web-platform-tests/mathml/support/feature-detection.js b/tests/wpt/web-platform-tests/mathml/support/feature-detection.js
index 69a6879f332..6f1d033b5b9 100644
--- a/tests/wpt/web-platform-tests/mathml/support/feature-detection.js
+++ b/tests/wpt/web-platform-tests/mathml/support/feature-detection.js
@@ -271,6 +271,46 @@ var MathMLFeatureDetection = {
         return this._has_dir;
     },
 
+    "has_mathsize": function() {
+        if (!this.hasOwnProperty("_has_mathsize")) {
+            document.body.insertAdjacentHTML("beforeend", "<math style='font-size: 64px !important;'>\
+<mtext mathsize='32px'></mtext>\
+</math>");
+            var math = document.body.lastElementChild;
+            this._has_mathsize =
+                window.getComputedStyle(math.firstElementChild).
+                getPropertyValue('font-size') === '32px';
+            document.body.removeChild(math);
+        }
+        return this._has_mathsize;
+    },
+
+    "has_movablelimits": function() {
+        if (!this.hasOwnProperty("_has_movablelimits")) {
+            document.body.insertAdjacentHTML("beforeend", "<math>\
+<munder>\
+  <mo style='font-size: 30px !important' movablelimits='false'>A</mo>\
+  <mspace width='100px'></mspace>\
+</munder>\
+<munder>\
+  <mo style='font-size: 30px !important' movablelimits='true'>A</mo>\
+  <mspace width='100px'></mspace>\
+</munder>\
+</math>");
+            var math = document.body.lastElementChild;
+            var munder = math.getElementsByTagName("munder");
+            // If movablelimits is supported, the <mspace> will be placed next
+            // to <mo> rather than below it, so width_delta is about the width
+            // of the <mo>.
+            var width_delta =
+                munder[1].getBoundingClientRect().width -
+                munder[0].getBoundingClientRect().width;
+            this._has_movablelimits = this.has_munder() && width_delta > 20;
+            document.body.removeChild(math);
+        }
+        return this._has_movablelimits;
+    },
+
     "has_operator_spacing": function() {
         // https://mathml-refresh.github.io/mathml-core/#dfn-lspace
         // https://mathml-refresh.github.io/mathml-core/#layout-of-mrow
diff --git a/tests/wpt/web-platform-tests/resources/chromium/nfc-mock.js b/tests/wpt/web-platform-tests/resources/chromium/nfc-mock.js
index 01a4e70d0c9..025b1f6bfed 100644
--- a/tests/wpt/web-platform-tests/resources/chromium/nfc-mock.js
+++ b/tests/wpt/web-platform-tests/resources/chromium/nfc-mock.js
@@ -340,13 +340,17 @@ var WebNFCTest = (() => {
     setReadingMessage(message, compatibility = 'nfc-forum') {
       this.reading_messages_.push({message: message,
           compatibility: toMojoNDEFCompatibility(compatibility)});
+      // Ignore reading if NFCPushOptions.ignoreRead is true
+      let ignoreRead = false;
+      if(this.push_options_ && this.push_options_.ignoreRead)
+        ignoreRead = this.push_options_.ignoreRead;
       // Triggers onWatch if the new message matches existing watchers
       for (let watcher of this.watchers_) {
-        if (matchesWatchOptions(
-                message, message.compatibility, watcher.options)) {
+        if (!ignoreRead && matchesWatchOptions(
+            message, toMojoNDEFCompatibility(compatibility), watcher.options)) {
           this.client_.onWatch(
               [watcher.id], fake_tag_serial_number,
-              toMojoNDEFMessage(message.message));
+              toMojoNDEFMessage(message));
         }
       }
     }
diff --git a/tests/wpt/web-platform-tests/web-nfc/NFCWriter_push.https.html b/tests/wpt/web-platform-tests/web-nfc/NFCWriter_push.https.html
index dcd23307a2e..cc8c94188d5 100644
--- a/tests/wpt/web-platform-tests/web-nfc/NFCWriter_push.https.html
+++ b/tests/wpt/web-platform-tests/web-nfc/NFCWriter_push.https.html
@@ -139,6 +139,23 @@ promise_test(async t => {
   await Promise.all(promises);
 }, "NFCWriter.push should fail if signal is not an AbortSignal.");
 
+nfc_test(async (t, mockNFC) => {
+  const writer1 = new NFCWriter();
+  const writer2 = new NFCWriter();
+  const controller = new AbortController();
+  mockNFC.setPendingPushCompleted(false);
+  const p1 = writer1.push(test_text_data,
+      { signal: controller.signal, timeout: 100 });
+
+  // Even though push request is grantable,
+  // this abort should be processed synchronously.
+  controller.abort();
+  await promise_rejects(t, 'AbortError', p1);
+
+  await writer2.push(test_text_data);
+  assertNDEFMessagesEqual(test_text_data, mockNFC.pushedMessage());
+}, "Synchronously signaled abort.");
+
 nfc_test(async (t, mockNFC) => {
   const writer = new NFCWriter();
   mockNFC.setHWStatus(NFCHWStatus.DISABLED);
@@ -288,20 +305,35 @@ nfc_test(async (t, mockNFC) => {
 }, "Check that provided NFCPushOptions values are correctly converted.");
 
 nfc_test(async (t, mockNFC) => {
-  const writer1 = new NFCWriter();
-  const writer2 = new NFCWriter();
+  const reader = new NFCReader();
+  const message = createMessage([createTextRecord(test_text_data)]);
   const controller = new AbortController();
-  mockNFC.setPendingPushCompleted(false);
-  const p1 = writer1.push(test_text_data,
-      { signal: controller.signal, timeout: 100 });
+  const readerWatcher = new EventWatcher(t, reader, ["reading", "error"]);
+  const promise = readerWatcher.wait_for("reading").then(event => {
+    controller.abort();
+    assertWebNDEFMessagesEqual(event.message, new NDEFMessage(message));
+  });
 
-  // Even though push request is grantable,
-  // this abort should be processed synchronously.
-  controller.abort();
-  await promise_rejects(t, 'AbortError', p1);
+  reader.scan({ signal: controller.signal });
 
-  await writer2.push(test_text_data);
+  const writer = new NFCWriter();
+  await writer.push(test_text_data, { ignoreRead: false });
+  mockNFC.setReadingMessage(message);
   assertNDEFMessagesEqual(test_text_data, mockNFC.pushedMessage());
-}, "Synchronously signaled abort.");
+  await promise;
+}, "NFCWriter.push should read data when ignoreRead is false.");
 
-</script>
+nfc_test(async (t, mockNFC) => {
+  const reader = new NFCReader();
+  const message = createMessage([createTextRecord(test_text_data)]);
+  // Ignore reading if NFCPushOptions.ignoreRead is true
+  reader.onreading = t.unreached_func("reading event should not be fired.");
+  reader.scan();
+
+  const writer = new NFCWriter();
+  await writer.push(test_text_data, { ignoreRead: true });
+  mockNFC.setReadingMessage(message);
+  assertNDEFMessagesEqual(test_text_data, mockNFC.pushedMessage());
+}, "NFCWriter.push should ignore reading data when ignoreRead is true.");
+
+</script>
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/websockets/Create-Secure-extensions-empty.any.js b/tests/wpt/web-platform-tests/websockets/Create-Secure-extensions-empty.any.js
index 0a2d883d35b..bff3d1a595e 100644
--- a/tests/wpt/web-platform-tests/websockets/Create-Secure-extensions-empty.any.js
+++ b/tests/wpt/web-platform-tests/websockets/Create-Secure-extensions-empty.any.js
@@ -7,15 +7,13 @@ var testClose = async_test("Create Secure WebSocket - wsocket.extensions should
 var wsocket = CreateWebSocket(true, false, false);
 var isOpenCalled = false;
 
-wsocket.addEventListener('open', testOpen.step_func(function(evt) {
-  assert_equals(wsocket.extensions, "", "extensions should be empty");
+wsocket.addEventListener('open', testOpen.step_func_done(function(evt) {
   wsocket.close();
   isOpenCalled = true;
-  testOpen.done();
+  assert_equals(wsocket.extensions, "", "extensions should be empty");
 }), true);
 
-wsocket.addEventListener('close', testClose.step_func(function(evt) {
+wsocket.addEventListener('close', testClose.step_func_done(function(evt) {
   assert_true(isOpenCalled, "WebSocket connection should be closed");
   assert_equals(evt.wasClean, true, "wasClean should be true");
-  testClose.done();
 }), true);