Named window getter is missing #27949

jdm · 2020-12-14T12:51:44Z

From https://html.spec.whatwg.org/multipage/window-object.html#the-window-object, we are currently missing this bit:

  getter object (DOMString name);
  // Since this is the global object, the IDL named getter adds a NamedPropertiesObject exotic
  // object on the prototype chain. Indeed, this does not make the global object an exotic object.
  // Indexed access is taken care of by the WindowProxy exotic object.

and LegacyUnenumerableNamedProperties

Spec:

#25562 and #21869 are two previous WIPs to implement this feature.

The text was updated successfully, but these errors were encountered:

jdm · 2020-12-14T13:39:49Z

The most recent work on this was happening in https://github.com/servo/servo/tree/named-getter.

pylbrecht · 2020-12-14T14:08:42Z

Sign me up, please!

pylbrecht · 2020-12-14T14:24:39Z

Alright, I'm gonna dive into the provided information and probably come back with some questions.

pshaughn · 2020-12-14T23:36:37Z

I think I had come very close in #25562, although my implementation was inelegant. The only thing I had outright wrong in it was the shape of the Window object's prototype chain, which requires some subtle Spidermonkey knowledge I didn't have and still don't have.

Implement named access on the window object  ---  - [ ] `./mach build -d` does not report any errors - [ ] `./mach test-tidy` does not report any errors - [ ] These changes fix #27949  - [ ] There are tests for these changes

pylbrecht · 2021-05-23T15:43:36Z

I ended up in the terrain of debugging code I did not write nor fully understand, which is quite frustrating and took out all the fun for me. I'd like to hand this over to someone else with more experience or more will to debug this.

Besides https://servo.zulipchat.com/#narrow/stream/263398-general/topic/Debugging.20wpt.20tests hopefully giving some context on what I've tried so far, I'm of course available to answer any questions to anyone picking this up.

@jdm, I'm not sure what to do about #27952. Feel free to close it, if that is the way to go.

jdm · 2021-05-23T15:44:28Z

I'm continuing to poke at the failures in #27952, so I'll leave it open.

pylbrecht · 2021-05-23T16:11:59Z

Great! If any concrete tasks come out of that, let me know. Maybe I can be of help then.

Implement named access on the window object  ---  - [ ] `./mach build -d` does not report any errors - [ ] `./mach test-tidy` does not report any errors - [ ] These changes fix #27949  - [ ] There are tests for these changes

HTML #named-access-on-the-window-object (see also #27952, #25562, #21869, #19904) * [x] updates #27952, resolving conflicts related to #29079 and #28546 * [ ] fixes “Servo exited with return value 11” ---  - [ ] `./mach build -d` does not report any errors - [ ] `./mach test-tidy` does not report any errors - [ ] These changes fix #27949 (GitHub issue number if applicable)  - [ ] There are tests for these changes OR - [ ] These changes do not require tests because ___

HTML #named-access-on-the-window-object (see also #27952, #25562, #21869, #19904) * [x] updates #27952, resolving conflicts related to #29079 and #28546 (5ae0ca4) * [x] fixes “Servo exited with return value 11” (1e24ffd) * [x] fixes “Assertion failure: CurrentThreadCanAccessRuntime(cx->runtime())” (5a2f05a) ---  - [ ] `./mach build -d` does not report any errors - [ ] `./mach test-tidy` does not report any errors - [ ] These changes fix #27949 (GitHub issue number if applicable)  - [ ] There are tests for these changes OR - [ ] These changes do not require tests because ___

HTML #named-access-on-the-window-object (see also #27952, #25562, #21869, #19904) * [x] updates #27952, resolving conflicts related to #29079 and #28546 (5ae0ca4) * [x] fixes “Servo exited with return value 11” (1e24ffd) * [x] fixes “Assertion failure: CurrentThreadCanAccessRuntime(cx->runtime())” (5a2f05a) <details><summary>130× tests that now pass</summary> * /cors/script-304.html * /css/CSS2/abspos/adjacent-to-relpos-inline-in-inline-that-had-block.html * /css/CSS2/abspos/adjacent-to-relpos-inline-that-had-block.html * /css/CSS2/floats-clear/remove-block-before-self-collapsing-sibling-with-clearance.html * /css/CSS2/floats/computed-float-position-absolute.html * /css/CSS2/normal-flow/block-in-inline-hittest-float-001.html * /css/CSS2/normal-flow/block-in-inline-insert-018.html * /css/CSS2/normal-flow/margin-collapse-through-percentage-padding.html * /css/CSS2/positioning/abspos-change-in-inline-block.html * /css/CSS2/positioning/abspos-width-change-inline-container-001.html * /css/CSS2/positioning/detach-abspos-before-layout.html * /css/CSS2/positioning/relpos-percentage-left-in-scrollable-2.html * /css/CSS2/positioning/relpos-percentage-left-in-scrollable.html * /css/CSS2/stacking-context/composite-change-after-scroll-preserves-stacking-order.html * /css/CSS2/stacking-context/opacity-change-parent-stacking-context.html * /css/CSS2/stacking-context/opacity-change-twice-stacking-context.html * /css/CSS2/stacking-context/opacity-transition-change-parent-stacking-context.html * /css/css-animations/animation-base-response-002.html * /css/css-animations/style-animation-parsing.html * /css/css-backgrounds/background-clip-color-repaint.html * /css/css-backgrounds/background-image-gradient-currentcolor-conic-repaint.html * /css/css-backgrounds/background-image-gradient-currentcolor-linear-repaint.html * /css/css-backgrounds/background-image-gradient-currentcolor-radial-repaint.html * /css/css-backgrounds/background-image-none-gradient-repaint.html * /css/css-backgrounds/border-radius-dynamic-from-no-radius.html * /css/css-backgrounds/child-move-reveals-parent-background.html * /css/css-color/filters-under-will-change-opacity.html * /css/css-flexbox/anonymous-flex-item-001.html * /css/css-flexbox/anonymous-flex-item-003.html * /css/css-flexbox/dynamic-bsize-change.html * /css/css-flexbox/flex-aspect-ratio-img-row-016.html * /css/cssom/at-namespace.html * /css/cssom/computed-style-002.html * /css/cssom/getComputedStyle-display-none-002.html * /css/cssom/getComputedStyle-display-none-003.html * /css/cssom/preferred-stylesheet-reversed-order.html * /css/cssom-view/HTMLImageElement-x-and-y-ignore-transforms.html * /css/cssom-view/pt-to-px-width.html * /css/cssom-view/scroll-back-to-initial-position.html * /css/css-text-decor/text-decoration-color-recalc-002.html * /css/css-text-decor/text-decoration-line-grammar-error-color-dynamic-001.optional.html * /css/css-text-decor/text-decoration-line-spelling-error-color-dynamic-001.optional.html * /css/css-text/text-indent/percentage-value-intrinsic-size.html * /css/css-text/white-space/display-contents-remove-whitespace-change.html * /css/css-text/white-space/white-space-empty-text-sibling.html * /css/css-transforms/change-perspective-property.html * /css/css-transforms/change-scale-wide-range.html * /css/css-transforms/change-transform-origin-property.html * /css/css-transforms/dynamic-fixed-pos-cb-change.html * /css/css-transforms/individual-transform/change-rotate-property.html * /css/css-transforms/individual-transform/change-scale-property.html * /css/css-transforms/paint-order-with-transform-change.html * /css/css-transforms/size-change-under-backface-visibility-hidden.html * /css/css-transforms/subpixel-transform-changes-001.html * /css/css-transforms/subpixel-transform-changes-002.html * /css/css-transforms/subpixel-transform-changes-003.html * /css/css-transforms/subpixel-transform-changes-004.html * /css/css-transitions/transition-reparented.html * /css/css-ui/historical/moz-user-modify-01.html * /css/css-ui/historical/user-modify-01.html * /css/css-ui/historical/webkit-user-modify-01.html * /css/css-ui/resize-change-margin.html * /css/css-ui/text-overflow-change-color.html * /css/css-ui/text-overflow-ellipsis-width-001.html * /css/css-values/animations/line-height-lh-transition.html * /css/css-values/calc-nesting.html * /css/css-values/update-subpixel-rem-unit.html * /css/css-values/viewport-units-modify.html * /css/css-variables/css-variable-change-style-001.html * /css/css-variables/css-variable-change-style-002.html * /css/css-variables/variable-cycles.html * /css/selectors/attribute-selectors/style-attribute-selector.html * /css/selectors/i18n/lang-pseudo-class-disconnected.html * /css/selectors/invalidation/attribute.html * /css/selectors/invalidation/class-id-attr.html * /css/selectors/invalidation/defined.html * /css/selectors/invalidation/sheet-going-away-001.html * /css/selectors/invalidation/sibling.html * /css/selectors/missing-right-token.html * /css/selectors/not-complex.html * /css/selectors/not-specificity.html * /css/selectors/nth-of-type-namespace.html * /css/selectors/selectors-case-sensitive-001.html * /css/selectors/visited-inheritance.html * /custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html * /dom/events/event-global-is-still-set-when-coercing-beforeunload-result.html * /dom/nodes/remove-and-adopt-thcrash.html * /FileAPI/Blob-methods-from-detached-frame.html done #29450 #29451 * /html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading.html * /html/browsers/history/the-history-interface/history_back_cross_realm_method.html * /html/browsers/history/the-history-interface/history_forward_cross_realm_method.html * /html/browsers/history/the-history-interface/history_go_cross_realm_method.html * /html/browsers/the-window-object/named-access-on-the-window-object/window-named-properties.html * /html/dom/elements/images/bypass-cache-revalidation.html * /html/rendering/non-replaced-elements/tables/table-ua-stylesheet.html * /html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-alt-crash-001.html * /html/rendering/replaced-elements/embedded-content/change-src-while-not-displayed.html * /html/rendering/replaced-elements/embedded-content/cross-domain-iframe-in-multicol.sub.html * /html/rendering/replaced-elements/embedded-content/cross-domain-iframe.sub.html * /html/rendering/replaced-elements/embedded-content/tall-cross-domain-iframe-in-scrolled.sub.html * /html/rendering/widgets/the-select-element/select-invalidation.html * /html/semantics/document-metadata/the-base-element/base_target_does_not_affect_iframe_src_navigation.html * /html/semantics/document-metadata/the-base-element/base_target_does_not_affect_location_assignment.html * /html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-focus.html * /html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-gbcr.html * /html/semantics/embedded-content/the-iframe-element/iframe-network-error.sub.html * /html/semantics/embedded-content/the-iframe-element/srcdoc-anchor.html * /html/semantics/embedded-content/the-iframe-element/srcdoc-attribute-reset.html * /html/semantics/embedded-content/the-img-element/image-compositing-change.html * /html/semantics/embedded-content/the-img-element/image-compositing-large-scale-change.html * /html/semantics/embedded-content/the-img-element/image-loading-lazy-clip-path.html * /html/semantics/embedded-content/the-img-element/image-loading-lazy-zero-intersection-area.html * /html/semantics/embedded-content/the-img-element/image-loading-subpixel-clip.html * /html/semantics/forms/form-submission-0/form-double-submit-to-different-origin-frame.html * /html/semantics/forms/form-submission-0/form-submit-iframe-then-location-navigate.html * /html/semantics/forms/form-submission-0/reparent-form-during-planned-navigation-task.html * /html/semantics/forms/the-button-element/button-willvalidate-readonly-attribute.html * /html/semantics/forms/the-input-element/datetime-local-trailing-zeros.html * /html/semantics/forms/the-input-element/radio-morphed.html * /html/semantics/forms/the-progress-element/progress.html * /html/semantics/forms/the-select-element/select-willvalidate-readonly-attribute.html * /html/semantics/selectors/pseudo-classes/placeholder-shown-type-change.html * /html/syntax/serializing-html-fragments/initial-linefeed-pre.html * /html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-errorevent.html * /html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-event.html * /quirks/unitless-length/excluded-properties-001.html * /quirks/unitless-length/excluded-properties-003.html * /selection/caret/empty-elements.html * /selection/contenteditable/cefalse-on-boundaries.html * /selection/textcontrols/onselectionchange-content-attribute.html </details> <details><summary>94× tests that improve but still fail in a way that’s clearly the subject of the test</summary> * **/css/css-animations/animation-base-response-001.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-visited.html** * **/css/css-backgrounds/inheritance.sub.html** * **/css/css-backgrounds/local-attachment-content-box-scroll.html** * **/css/css-color/canvas-change-opacity.html** * **/css/css-color/color-initial-canvastext.html** * **/css/css-flexbox/flex-aspect-ratio-img-column-010.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-004.html** * **/css/css-fonts/parsing/font-face-src-format.html** getter works but insertRule does nothing * **/css/css-fonts/parsing/font-face-src-list.html** as above * **/css/css-fonts/parsing/font-face-src-local.html** as above, but also delayed length change? * **/css/css-fonts/parsing/font-face-src-tech.html** as above * **/css/css-text/white-space/trailing-space-before-br-001.html** * **/css/css-transforms/3d-rendering-context-behavior.html** failures are subject of test, but also blank page? * **/css/css-transforms/individual-transform/change-translate-property.html** * **/css/css-transforms/preserve-3d-flat-grouping-properties.html** * **/css/css-transforms/transforms-support-calc.html** * **/css/css-transitions/inherit-height-transition.html** * **/css/css-ui/inheritance.html** * **/css/css-ui/parsing/outline-width-computed.html** failures are subject of test; https://drafts.csswg.org/css-values-4/#snap-a-length-as-a-border-width * **/css/css-values/lh-unit-003.html** * **/css/css-values/viewport-units-compute.html** * **/css/css-values/viewport-units-keyframes.html** * **/css/css-values/viewport-units-media-queries.html** * **/css/css-values/viewport-units-writing-mode.html** * **/css/cssom-view/elementsFromPoint-table.html** * **/css/cssom-view/scroll-behavior-default-css.html** * **/css/cssom-view/scroll-behavior-element.html** * **/css/cssom-view/scroll-behavior-main-frame-root.html** * **/css/cssom-view/scroll-behavior-main-frame-window.html** * **/css/cssom-view/scroll-behavior-smooth-navigation.html** * **/css/cssom-view/scroll-behavior-subframe-root.html** * **/css/cssom/computed-style-003.html** * **/css/cssom/computed-style-004.html** * **/css/cssom/font-variant-shorthand-serialization.html** * **/css/selectors/dir-selector-auto.html** * **/css/selectors/has-argument-with-explicit-scope.html** * **/css/selectors/has-basic.html** * **/css/selectors/has-relative-argument.html** * **/css/selectors/invalidation/attribute-or-elemental-selectors-in-has.html** * **/css/selectors/invalidation/child-indexed-pseudo-classes-in-has.html** * **/css/selectors/invalidation/dir-pseudo-class-in-has.html** * **/css/selectors/invalidation/empty-pseudo-in-has.html** * **/css/selectors/invalidation/has-in-adjacent-position.html** * **/css/selectors/invalidation/has-in-ancestor-position.html** * **/css/selectors/invalidation/has-in-parent-position.html** * **/css/selectors/invalidation/has-in-sibling-position.html** * **/css/selectors/invalidation/has-invalidation-after-removing-non-first-element.html** * **/css/selectors/invalidation/has-invalidation-for-wiping-an-element.html** * **/css/selectors/invalidation/has-sibling.html** * **/css/selectors/invalidation/has-with-not.html** * **/css/selectors/invalidation/has-with-pseudo-class.html** * **/css/selectors/invalidation/input-pseudo-classes-in-has.html** * **/css/selectors/invalidation/is-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/lang-pseudo-class-in-has.html** * **/css/selectors/invalidation/not-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/typed-child-indexed-pseudo-classes-in-has.html** * **/css/selectors/is-where-basic.html** * **/css/selectors/is-where-not.html** * **/html/rendering/non-replaced-elements/tables/form-in-tables.html** * /html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update- * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-attribute-changes.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-normal-descendant-change.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-remove.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow-aspect-ratio.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow.html** * **/html/semantics/interactive-elements/the-dialog-element/inertness-with-modal-dialogs-and-iframes.html** * **/html/semantics/popovers/popover-stacking.html** * **/referrer-policy/generic/inheritance/popup-inheritance-form-submission.html** * **/resource-timing/resource-reload-TAO.html** * **/selection/bidi/modify.tentative.html** * **/selection/contenteditable/modify.tentative.html** * **/selection/textcontrols/selectionchange.html** * **/css/CSS2/normal-flow/block-in-inline-client-rects-001.html** * **/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html** * **/css/css-animations/computed-style-animation-parsing.html** * **/css/css-variables/variables-substitute-guaranteed-invalid.html** * **/css/cssom-view/elementsFromPoint-simple.html** * **/css/cssom/CSSStyleSheet-modify-after-removal.html** * **/css/cssom/getComputedStyle-display-none-001.html** * **/css/selectors/focus-visible-script-focus-001.html** * **/css/selectors/has-specificity.html** * **/css/selectors/invalidation/is.html** * **/css/selectors/invalidation/not-002.html** * **/dom/events/EventListener-handleEvent-cross-realm.html** * **/dom/traversal/TreeWalker-acceptNode-filter-cross-realm.html** * **/html/browsers/the-window-object/window-properties.https.html** * **/html/browsers/the-window-object/window-prototype-chain.html** * **/html/browsers/windows/nested-browsing-contexts/frameElement.sub.html** * **/html/dom/aria-element-reflection.html** * **/html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update-with-border-object-fit.html** * **/html/semantics/forms/form-submission-0/form-double-submit-multiple-targets.html** * **/html/semantics/forms/the-input-element/show-picker-cross-origin-iframe.html** * **/html/webappapis/scripting/events/compile-event-handler-lexical-scopes-form-owner.html** * **/quirks/unitless-length/excluded-properties-002.html** </details> <details open><summary>22× tests with failures that looked interesting</summary> * 1× CRASH [expected ...] * **/css/css-fonts/crash-large-grapheme-cluster.html** crash is subject of test * 6× FAIL [expected PASS] /... (reftest) * **/css/css-flexbox/anonymous-flex-item-005.html** old pass was spurious * **/css/css-flexbox/anonymous-flex-item-006.html** old pass was spurious * **/css/css-text-decor/text-decoration-line-recalc.html** old pass was spurious; ‘text-decoration’ shorthand unimplemented * **/css/css-ui/appearance-auto-non-html-namespace-001.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-inherit-rtl.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-rtl.html** old pass was spurious * 13× TIMEOUT [expected ...] * **/css/css-fonts/font-size-monospace-adjust.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/css/cssom-view/background-change-during-smooth-scroll.html** timeout is subject of test * **/css/selectors/invalidation/has-complexity.html** timeout is subject of test * **/css/selectors/invalidation/media-loading-pseudo-classes-in-has.html** timeout is subject of test; :has() unimplemented * **/fetch/stale-while-revalidate/stale-image.html** timeout is subject of test * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigates-multiple-frames.html** timeout is subject of test * **/html/rendering/widgets/appearance/appearance-animation-001.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-animation-002.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-transition-001.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-002.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-003.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/resource-timing/opaque-origin.html** timeout is subject of test * **/selection/textcontrols/selectionchange-bubble.html** timeout is subject of test * **/webidl/ecmascript-binding/invalid-this-value-cross-realm.html** ‘HTMLDocument’ unimplemented * **/webidl/ecmascript-binding/window-named-properties-object.html** potentially interesting? </details> ---  - [ ] `./mach build -d` does not report any errors - [ ] `./mach test-tidy` does not report any errors - [ ] These changes fix #27949 (GitHub issue number if applicable)  - [ ] There are tests for these changes OR - [ ] These changes do not require tests because ___

@pylbrecht

HTML #named-access-on-the-window-object This patch implements [named access on the window object](https://html.spec.whatwg.org/#named-access-on-the-window-object) based on @pylbrecht’s and @yvt’s previous work (see also #27952, #25562, #21869, #19904). That work makes 130 tests pass, and I’ve made some additional changes to make [the test for the feature itself](https://wpt.live/webidl/ecmascript-binding/window-named-properties-object.html) pass too, but I haven’t worked with mozjs before, so I have no idea if I’ve gone about my changes the Right Way. In particular, this patch: * [x] applies @pylbrecht’s patch (#27952) * [x] resolves conflicts related to #29079 and #28546 (5ae0ca4) * [x] applies @yvt’s patch to the segfault in getPrototypeIfOrdinary (1e24ffd) * [x] reverts the change introducing Untransplantable (76dc35a), since #28534 was abandoned in favour of #28536 * [x] triages the unexpected WPT results, updating expectations as needed (see below) * [x] fixes the failures in /webidl/ecmascript-binding/window-named-properties-object.html (3844f69) * [x] fixes the failures in the [[GetOwnProperty]] subtest (75c24e9) * [x] fixes the failures in the [[DefineOwnProperty]] subtest (e4e7a14) * [x] fixes the failures in the [[HasProperty]] subtest (75c24e9) * [x] fixes the failures in the [[Get]] subtest (4bafb27) * [x] fixes the failures in the [[Set]] (direct) subtest (e4e7a14) * [x] fixes the failures in the [[Delete]] subtest (4bafb27) * [x] fixes the failures in the [[OwnPropertyKeys]] subtest (afcd24a) * [x] resolves the todos and fixmes * [x] Document: handle exposed objects ×3 (ed3e37b) * [x] Window::NamedGetter: document.get_elements_with_id() (618ef57) * [x] get_own_property_descriptor: check for interactions with indexed access (b906fae) * [x] create trap: pass proper classp (618ef57) <details><summary>131× tests that now pass</summary> * **/webidl/ecmascript-binding/window-named-properties-object.html** *directly relevant to this patch* * **/FileAPI/Blob-methods-from-detached-frame.html** done #29450 #29451 * **/cors/script-304.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-in-inline-that-had-block.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-that-had-block.html** * **/css/CSS2/floats-clear/remove-block-before-self-collapsing-sibling-with-clearance.html** * **/css/CSS2/floats/computed-float-position-absolute.html** * **/css/CSS2/normal-flow/block-in-inline-hittest-float-001.html** * **/css/CSS2/normal-flow/block-in-inline-insert-018.html** * **/css/CSS2/normal-flow/margin-collapse-through-percentage-padding.html** * **/css/CSS2/positioning/abspos-change-in-inline-block.html** * **/css/CSS2/positioning/abspos-width-change-inline-container-001.html** * **/css/CSS2/positioning/detach-abspos-before-layout.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable-2.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html** * **/css/CSS2/stacking-context/composite-change-after-scroll-preserves-stacking-order.html** * **/css/CSS2/stacking-context/opacity-change-parent-stacking-context.html** * **/css/CSS2/stacking-context/opacity-change-twice-stacking-context.html** * **/css/CSS2/stacking-context/opacity-transition-change-parent-stacking-context.html** * **/css/css-animations/animation-base-response-002.html** * **/css/css-animations/style-animation-parsing.html** * **/css/css-backgrounds/background-clip-color-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-conic-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-linear-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-radial-repaint.html** * **/css/css-backgrounds/background-image-none-gradient-repaint.html** * **/css/css-backgrounds/border-radius-dynamic-from-no-radius.html** * **/css/css-backgrounds/child-move-reveals-parent-background.html** * **/css/css-color/filters-under-will-change-opacity.html** * **/css/css-flexbox/anonymous-flex-item-001.html** * **/css/css-flexbox/anonymous-flex-item-003.html** * **/css/css-flexbox/dynamic-bsize-change.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-016.html** * **/css/cssom/at-namespace.html** * **/css/cssom/computed-style-002.html** * **/css/cssom/getComputedStyle-display-none-002.html** * **/css/cssom/getComputedStyle-display-none-003.html** * **/css/cssom/preferred-stylesheet-reversed-order.html** * **/css/cssom-view/HTMLImageElement-x-and-y-ignore-transforms.html** * **/css/cssom-view/pt-to-px-width.html** * **/css/cssom-view/scroll-back-to-initial-position.html** * **/css/css-text-decor/text-decoration-color-recalc-002.html** * **/css/css-text-decor/text-decoration-line-grammar-error-color-dynamic-001.optional.html** * **/css/css-text-decor/text-decoration-line-spelling-error-color-dynamic-001.optional.html** * **/css/css-text/text-indent/percentage-value-intrinsic-size.html** * **/css/css-text/white-space/display-contents-remove-whitespace-change.html** * **/css/css-text/white-space/white-space-empty-text-sibling.html** * **/css/css-transforms/change-perspective-property.html** * **/css/css-transforms/change-scale-wide-range.html** * **/css/css-transforms/change-transform-origin-property.html** * **/css/css-transforms/dynamic-fixed-pos-cb-change.html** * **/css/css-transforms/individual-transform/change-rotate-property.html** * **/css/css-transforms/individual-transform/change-scale-property.html** * **/css/css-transforms/paint-order-with-transform-change.html** * **/css/css-transforms/size-change-under-backface-visibility-hidden.html** * **/css/css-transforms/subpixel-transform-changes-001.html** * **/css/css-transforms/subpixel-transform-changes-002.html** * **/css/css-transforms/subpixel-transform-changes-003.html** * **/css/css-transforms/subpixel-transform-changes-004.html** * **/css/css-transitions/transition-reparented.html** * **/css/css-ui/historical/moz-user-modify-01.html** * **/css/css-ui/historical/user-modify-01.html** * **/css/css-ui/historical/webkit-user-modify-01.html** * **/css/css-ui/resize-change-margin.html** * **/css/css-ui/text-overflow-change-color.html** * **/css/css-ui/text-overflow-ellipsis-width-001.html** * **/css/css-values/animations/line-height-lh-transition.html** * **/css/css-values/calc-nesting.html** * **/css/css-values/update-subpixel-rem-unit.html** * **/css/css-values/viewport-units-modify.html** * **/css/css-variables/css-variable-change-style-001.html** * **/css/css-variables/css-variable-change-style-002.html** * **/css/css-variables/variable-cycles.html** * **/css/selectors/attribute-selectors/style-attribute-selector.html** * **/css/selectors/i18n/lang-pseudo-class-disconnected.html** * **/css/selectors/invalidation/attribute.html** * **/css/selectors/invalidation/class-id-attr.html** * **/css/selectors/invalidation/defined.html** * **/css/selectors/invalidation/sheet-going-away-001.html** * **/css/selectors/invalidation/sibling.html** * **/css/selectors/missing-right-token.html** * **/css/selectors/not-complex.html** * **/css/selectors/not-specificity.html** * **/css/selectors/nth-of-type-namespace.html** * **/css/selectors/selectors-case-sensitive-001.html** * **/css/selectors/visited-inheritance.html** * **/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html** * **/dom/events/event-global-is-still-set-when-coercing-beforeunload-result.html** * **/dom/nodes/remove-and-adopt-thcrash.html** * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading.html** * **/html/browsers/history/the-history-interface/history_back_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_forward_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_go_cross_realm_method.html** * **/html/browsers/the-window-object/named-access-on-the-window-object/window-named-properties.html** * **/html/dom/elements/images/bypass-cache-revalidation.html** * **/html/rendering/non-replaced-elements/tables/table-ua-stylesheet.html** * **/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-alt-crash-001.html** * **/html/rendering/replaced-elements/embedded-content/change-src-while-not-displayed.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe-in-multicol.sub.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe.sub.html** * **/html/rendering/replaced-elements/embedded-content/tall-cross-domain-iframe-in-scrolled.sub.html** * **/html/rendering/widgets/the-select-element/select-invalidation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_iframe_src_navigation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_location_assignment.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-focus.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-gbcr.html** * **/html/semantics/embedded-content/the-iframe-element/iframe-network-error.sub.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-anchor.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-attribute-reset.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-change.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-large-scale-change.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-clip-path.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-zero-intersection-area.html** * **/html/semantics/embedded-content/the-img-element/image-loading-subpixel-clip.html** * **/html/semantics/forms/form-submission-0/form-double-submit-to-different-origin-frame.html** * **/html/semantics/forms/form-submission-0/form-submit-iframe-then-location-navigate.html** * **/html/semantics/forms/form-submission-0/reparent-form-during-planned-navigation-task.html** * **/html/semantics/forms/the-button-element/button-willvalidate-readonly-attribute.html** * **/html/semantics/forms/the-input-element/datetime-local-trailing-zeros.html** * **/html/semantics/forms/the-input-element/radio-morphed.html** * **/html/semantics/forms/the-progress-element/progress.html** * **/html/semantics/forms/the-select-element/select-willvalidate-readonly-attribute.html** * **/html/semantics/selectors/pseudo-classes/placeholder-shown-type-change.html** * **/html/syntax/serializing-html-fragments/initial-linefeed-pre.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-errorevent.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-event.html** * **/quirks/unitless-length/excluded-properties-001.html** * **/quirks/unitless-length/excluded-properties-003.html** * **/selection/caret/empty-elements.html** * **/selection/contenteditable/cefalse-on-boundaries.html** * **/selection/textcontrols/onselectionchange-content-attribute.html** </details> <details><summary>94× tests that improve but still fail in a way that’s clearly the subject of the test</summary> * **/css/css-animations/animation-base-response-001.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-visited.html** * **/css/css-backgrounds/inheritance.sub.html** * **/css/css-backgrounds/local-attachment-content-box-scroll.html** * **/css/css-color/canvas-change-opacity.html** * **/css/css-color/color-initial-canvastext.html** * **/css/css-flexbox/flex-aspect-ratio-img-column-010.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-004.html** * **/css/css-fonts/parsing/font-face-src-format.html** getter works but insertRule does nothing * **/css/css-fonts/parsing/font-face-src-list.html** as above * **/css/css-fonts/parsing/font-face-src-local.html** as above, but also delayed length change? * **/css/css-fonts/parsing/font-face-src-tech.html** as above * **/css/css-text/white-space/trailing-space-before-br-001.html** * **/css/css-transforms/3d-rendering-context-behavior.html** failures are subject of test, but also blank page? * **/css/css-transforms/individual-transform/change-translate-property.html** * **/css/css-transforms/preserve-3d-flat-grouping-properties.html** * **/css/css-transforms/transforms-support-calc.html** * **/css/css-transitions/inherit-height-transition.html** * **/css/css-ui/inheritance.html** * **/css/css-ui/parsing/outline-width-computed.html** failures are subject of test; https://drafts.csswg.org/css-values-4/#snap-a-length-as-a-border-width * **/css/css-values/lh-unit-003.html** * **/css/css-values/viewport-units-compute.html** * **/css/css-values/viewport-units-keyframes.html** * **/css/css-values/viewport-units-media-queries.html** * **/css/css-values/viewport-units-writing-mode.html** * **/css/cssom-view/elementsFromPoint-table.html** * **/css/cssom-view/scroll-behavior-default-css.html** * **/css/cssom-view/scroll-behavior-element.html** * **/css/cssom-view/scroll-behavior-main-frame-root.html** * **/css/cssom-view/scroll-behavior-main-frame-window.html** * **/css/cssom-view/scroll-behavior-smooth-navigation.html** * **/css/cssom-view/scroll-behavior-subframe-root.html** * **/css/cssom/computed-style-003.html** * **/css/cssom/computed-style-004.html** * **/css/cssom/font-variant-shorthand-serialization.html** * **/css/selectors/dir-selector-auto.html** * **/css/selectors/has-argument-with-explicit-scope.html** * **/css/selectors/has-basic.html** * **/css/selectors/has-relative-argument.html** * **/css/selectors/invalidation/attribute-or-elemental-selectors-in-has.html** * **/css/selectors/invalidation/child-indexed-pseudo-classes-in-has.html** * **/css/selectors/invalidation/dir-pseudo-class-in-has.html** * **/css/selectors/invalidation/empty-pseudo-in-has.html** * **/css/selectors/invalidation/has-in-adjacent-position.html** * **/css/selectors/invalidation/has-in-ancestor-position.html** * **/css/selectors/invalidation/has-in-parent-position.html** * **/css/selectors/invalidation/has-in-sibling-position.html** * **/css/selectors/invalidation/has-invalidation-after-removing-non-first-element.html** * **/css/selectors/invalidation/has-invalidation-for-wiping-an-element.html** * **/css/selectors/invalidation/has-sibling.html** * **/css/selectors/invalidation/has-with-not.html** * **/css/selectors/invalidation/has-with-pseudo-class.html** * **/css/selectors/invalidation/input-pseudo-classes-in-has.html** * **/css/selectors/invalidation/is-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/lang-pseudo-class-in-has.html** * **/css/selectors/invalidation/not-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/typed-child-indexed-pseudo-classes-in-has.html** * **/css/selectors/is-where-basic.html** * **/css/selectors/is-where-not.html** * **/html/rendering/non-replaced-elements/tables/form-in-tables.html** * /html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update- * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-attribute-changes.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-normal-descendant-change.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-remove.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow-aspect-ratio.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow.html** * **/html/semantics/interactive-elements/the-dialog-element/inertness-with-modal-dialogs-and-iframes.html** * **/html/semantics/popovers/popover-stacking.html** * **/referrer-policy/generic/inheritance/popup-inheritance-form-submission.html** * **/resource-timing/resource-reload-TAO.html** * **/selection/bidi/modify.tentative.html** * **/selection/contenteditable/modify.tentative.html** * **/selection/textcontrols/selectionchange.html** * **/css/CSS2/normal-flow/block-in-inline-client-rects-001.html** * **/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html** * **/css/css-animations/computed-style-animation-parsing.html** * **/css/css-variables/variables-substitute-guaranteed-invalid.html** * **/css/cssom-view/elementsFromPoint-simple.html** * **/css/cssom/CSSStyleSheet-modify-after-removal.html** * **/css/cssom/getComputedStyle-display-none-001.html** * **/css/selectors/focus-visible-script-focus-001.html** * **/css/selectors/has-specificity.html** * **/css/selectors/invalidation/is.html** * **/css/selectors/invalidation/not-002.html** * **/dom/events/EventListener-handleEvent-cross-realm.html** * **/dom/traversal/TreeWalker-acceptNode-filter-cross-realm.html** * **/html/browsers/the-window-object/window-properties.https.html** * **/html/browsers/the-window-object/window-prototype-chain.html** * **/html/browsers/windows/nested-browsing-contexts/frameElement.sub.html** * **/html/dom/aria-element-reflection.html** * **/html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update-with-border-object-fit.html** * **/html/semantics/forms/form-submission-0/form-double-submit-multiple-targets.html** * **/html/semantics/forms/the-input-element/show-picker-cross-origin-iframe.html** * **/html/webappapis/scripting/events/compile-event-handler-lexical-scopes-form-owner.html** * **/quirks/unitless-length/excluded-properties-002.html** </details> <details><summary>22× tests with failures that looked interesting</summary> * 1× CRASH [expected ...] * **/css/css-fonts/crash-large-grapheme-cluster.html** crash is subject of test * 6× FAIL [expected PASS] /... (reftest) * **/css/css-flexbox/anonymous-flex-item-005.html** old pass was spurious * **/css/css-flexbox/anonymous-flex-item-006.html** old pass was spurious * **/css/css-text-decor/text-decoration-line-recalc.html** old pass was spurious; ‘text-decoration’ shorthand unimplemented * **/css/css-ui/appearance-auto-non-html-namespace-001.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-inherit-rtl.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-rtl.html** old pass was spurious * 13× TIMEOUT [expected ...] * **/css/css-fonts/font-size-monospace-adjust.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/css/cssom-view/background-change-during-smooth-scroll.html** timeout is subject of test * **/css/selectors/invalidation/has-complexity.html** timeout is subject of test * **/css/selectors/invalidation/media-loading-pseudo-classes-in-has.html** timeout is subject of test; :has() unimplemented * **/fetch/stale-while-revalidate/stale-image.html** timeout is subject of test * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigates-multiple-frames.html** timeout is subject of test * **/html/rendering/widgets/appearance/appearance-animation-001.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-animation-002.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-transition-001.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-002.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-003.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/resource-timing/opaque-origin.html** timeout is subject of test * **/selection/textcontrols/selectionchange-bubble.html** timeout is subject of test * **/webidl/ecmascript-binding/invalid-this-value-cross-realm.html** ‘HTMLDocument’ unimplemented </details> ---  - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [x] These changes fix #27949 (GitHub issue number if applicable)  - [x] There are tests for these changes OR - [ ] These changes do not require tests because ___

@pylbrecht

HTML #named-access-on-the-window-object This patch implements [named access on the window object](https://html.spec.whatwg.org/#named-access-on-the-window-object) based on @pylbrecht’s and @yvt’s previous work (see also #27952, #25562, #21869, #19904). That work makes 130 tests pass, and I’ve made some additional changes to make [the test for the feature itself](https://wpt.live/webidl/ecmascript-binding/window-named-properties-object.html) pass too, but I haven’t worked with mozjs before, so I have no idea if I’ve gone about my changes the Right Way. In particular, this patch: * [x] applies @pylbrecht’s patch (#27952) * [x] resolves conflicts related to #29079 and #28546 (5ae0ca4) * [x] applies @yvt’s patch to the segfault in getPrototypeIfOrdinary (1e24ffd) * [x] reverts the change introducing Untransplantable (76dc35a), since #28534 was abandoned in favour of #28536 * [x] triages the unexpected WPT results, updating expectations as needed (see below) * [x] fixes the failures in /webidl/ecmascript-binding/window-named-properties-object.html (3844f69) * [x] fixes the failures in the [[GetOwnProperty]] subtest (75c24e9) * [x] fixes the failures in the [[DefineOwnProperty]] subtest (e4e7a14) * [x] fixes the failures in the [[HasProperty]] subtest (75c24e9) * [x] fixes the failures in the [[Get]] subtest (4bafb27) * [x] fixes the failures in the [[Set]] (direct) subtest (e4e7a14) * [x] fixes the failures in the [[Delete]] subtest (4bafb27) * [x] fixes the failures in the [[OwnPropertyKeys]] subtest (afcd24a) * [x] resolves the todos and fixmes * [x] Document: handle exposed objects ×3 (ed3e37b) * [x] Window::NamedGetter: document.get_elements_with_id() (618ef57) * [x] get_own_property_descriptor: check for interactions with indexed access (b906fae) * [x] create trap: pass proper classp (618ef57) <details><summary>131× tests that now pass</summary> * **/webidl/ecmascript-binding/window-named-properties-object.html** *directly relevant to this patch* * **/FileAPI/Blob-methods-from-detached-frame.html** done #29450 #29451 * **/cors/script-304.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-in-inline-that-had-block.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-that-had-block.html** * **/css/CSS2/floats-clear/remove-block-before-self-collapsing-sibling-with-clearance.html** * **/css/CSS2/floats/computed-float-position-absolute.html** * **/css/CSS2/normal-flow/block-in-inline-hittest-float-001.html** * **/css/CSS2/normal-flow/block-in-inline-insert-018.html** * **/css/CSS2/normal-flow/margin-collapse-through-percentage-padding.html** * **/css/CSS2/positioning/abspos-change-in-inline-block.html** * **/css/CSS2/positioning/abspos-width-change-inline-container-001.html** * **/css/CSS2/positioning/detach-abspos-before-layout.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable-2.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html** * **/css/CSS2/stacking-context/composite-change-after-scroll-preserves-stacking-order.html** * **/css/CSS2/stacking-context/opacity-change-parent-stacking-context.html** * **/css/CSS2/stacking-context/opacity-change-twice-stacking-context.html** * **/css/CSS2/stacking-context/opacity-transition-change-parent-stacking-context.html** * **/css/css-animations/animation-base-response-002.html** * **/css/css-animations/style-animation-parsing.html** * **/css/css-backgrounds/background-clip-color-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-conic-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-linear-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-radial-repaint.html** * **/css/css-backgrounds/background-image-none-gradient-repaint.html** * **/css/css-backgrounds/border-radius-dynamic-from-no-radius.html** * **/css/css-backgrounds/child-move-reveals-parent-background.html** * **/css/css-color/filters-under-will-change-opacity.html** * **/css/css-flexbox/anonymous-flex-item-001.html** * **/css/css-flexbox/anonymous-flex-item-003.html** * **/css/css-flexbox/dynamic-bsize-change.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-016.html** * **/css/cssom/at-namespace.html** * **/css/cssom/computed-style-002.html** * **/css/cssom/getComputedStyle-display-none-002.html** * **/css/cssom/getComputedStyle-display-none-003.html** * **/css/cssom/preferred-stylesheet-reversed-order.html** * **/css/cssom-view/HTMLImageElement-x-and-y-ignore-transforms.html** * **/css/cssom-view/pt-to-px-width.html** * **/css/cssom-view/scroll-back-to-initial-position.html** * **/css/css-text-decor/text-decoration-color-recalc-002.html** * **/css/css-text-decor/text-decoration-line-grammar-error-color-dynamic-001.optional.html** * **/css/css-text-decor/text-decoration-line-spelling-error-color-dynamic-001.optional.html** * **/css/css-text/text-indent/percentage-value-intrinsic-size.html** * **/css/css-text/white-space/display-contents-remove-whitespace-change.html** * **/css/css-text/white-space/white-space-empty-text-sibling.html** * **/css/css-transforms/change-perspective-property.html** * **/css/css-transforms/change-scale-wide-range.html** * **/css/css-transforms/change-transform-origin-property.html** * **/css/css-transforms/dynamic-fixed-pos-cb-change.html** * **/css/css-transforms/individual-transform/change-rotate-property.html** * **/css/css-transforms/individual-transform/change-scale-property.html** * **/css/css-transforms/paint-order-with-transform-change.html** * **/css/css-transforms/size-change-under-backface-visibility-hidden.html** * **/css/css-transforms/subpixel-transform-changes-001.html** * **/css/css-transforms/subpixel-transform-changes-002.html** * **/css/css-transforms/subpixel-transform-changes-003.html** * **/css/css-transforms/subpixel-transform-changes-004.html** * **/css/css-transitions/transition-reparented.html** * **/css/css-ui/historical/moz-user-modify-01.html** * **/css/css-ui/historical/user-modify-01.html** * **/css/css-ui/historical/webkit-user-modify-01.html** * **/css/css-ui/resize-change-margin.html** * **/css/css-ui/text-overflow-change-color.html** * **/css/css-ui/text-overflow-ellipsis-width-001.html** * **/css/css-values/animations/line-height-lh-transition.html** * **/css/css-values/calc-nesting.html** * **/css/css-values/update-subpixel-rem-unit.html** * **/css/css-values/viewport-units-modify.html** * **/css/css-variables/css-variable-change-style-001.html** * **/css/css-variables/css-variable-change-style-002.html** * **/css/css-variables/variable-cycles.html** * **/css/selectors/attribute-selectors/style-attribute-selector.html** * **/css/selectors/i18n/lang-pseudo-class-disconnected.html** * **/css/selectors/invalidation/attribute.html** * **/css/selectors/invalidation/class-id-attr.html** * **/css/selectors/invalidation/defined.html** * **/css/selectors/invalidation/sheet-going-away-001.html** * **/css/selectors/invalidation/sibling.html** * **/css/selectors/missing-right-token.html** * **/css/selectors/not-complex.html** * **/css/selectors/not-specificity.html** * **/css/selectors/nth-of-type-namespace.html** * **/css/selectors/selectors-case-sensitive-001.html** * **/css/selectors/visited-inheritance.html** * **/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html** * **/dom/events/event-global-is-still-set-when-coercing-beforeunload-result.html** * **/dom/nodes/remove-and-adopt-thcrash.html** * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading.html** * **/html/browsers/history/the-history-interface/history_back_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_forward_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_go_cross_realm_method.html** * **/html/browsers/the-window-object/named-access-on-the-window-object/window-named-properties.html** * **/html/dom/elements/images/bypass-cache-revalidation.html** * **/html/rendering/non-replaced-elements/tables/table-ua-stylesheet.html** * **/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-alt-crash-001.html** * **/html/rendering/replaced-elements/embedded-content/change-src-while-not-displayed.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe-in-multicol.sub.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe.sub.html** * **/html/rendering/replaced-elements/embedded-content/tall-cross-domain-iframe-in-scrolled.sub.html** * **/html/rendering/widgets/the-select-element/select-invalidation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_iframe_src_navigation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_location_assignment.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-focus.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-gbcr.html** * **/html/semantics/embedded-content/the-iframe-element/iframe-network-error.sub.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-anchor.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-attribute-reset.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-change.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-large-scale-change.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-clip-path.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-zero-intersection-area.html** * **/html/semantics/embedded-content/the-img-element/image-loading-subpixel-clip.html** * **/html/semantics/forms/form-submission-0/form-double-submit-to-different-origin-frame.html** * **/html/semantics/forms/form-submission-0/form-submit-iframe-then-location-navigate.html** * **/html/semantics/forms/form-submission-0/reparent-form-during-planned-navigation-task.html** * **/html/semantics/forms/the-button-element/button-willvalidate-readonly-attribute.html** * **/html/semantics/forms/the-input-element/datetime-local-trailing-zeros.html** * **/html/semantics/forms/the-input-element/radio-morphed.html** * **/html/semantics/forms/the-progress-element/progress.html** * **/html/semantics/forms/the-select-element/select-willvalidate-readonly-attribute.html** * **/html/semantics/selectors/pseudo-classes/placeholder-shown-type-change.html** * **/html/syntax/serializing-html-fragments/initial-linefeed-pre.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-errorevent.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-event.html** * **/quirks/unitless-length/excluded-properties-001.html** * **/quirks/unitless-length/excluded-properties-003.html** * **/selection/caret/empty-elements.html** * **/selection/contenteditable/cefalse-on-boundaries.html** * **/selection/textcontrols/onselectionchange-content-attribute.html** </details> <details><summary>94× tests that improve but still fail in a way that’s clearly the subject of the test</summary> * **/css/css-animations/animation-base-response-001.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-visited.html** * **/css/css-backgrounds/inheritance.sub.html** * **/css/css-backgrounds/local-attachment-content-box-scroll.html** * **/css/css-color/canvas-change-opacity.html** * **/css/css-color/color-initial-canvastext.html** * **/css/css-flexbox/flex-aspect-ratio-img-column-010.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-004.html** * **/css/css-fonts/parsing/font-face-src-format.html** getter works but insertRule does nothing * **/css/css-fonts/parsing/font-face-src-list.html** as above * **/css/css-fonts/parsing/font-face-src-local.html** as above, but also delayed length change? * **/css/css-fonts/parsing/font-face-src-tech.html** as above * **/css/css-text/white-space/trailing-space-before-br-001.html** * **/css/css-transforms/3d-rendering-context-behavior.html** failures are subject of test, but also blank page? * **/css/css-transforms/individual-transform/change-translate-property.html** * **/css/css-transforms/preserve-3d-flat-grouping-properties.html** * **/css/css-transforms/transforms-support-calc.html** * **/css/css-transitions/inherit-height-transition.html** * **/css/css-ui/inheritance.html** * **/css/css-ui/parsing/outline-width-computed.html** failures are subject of test; https://drafts.csswg.org/css-values-4/#snap-a-length-as-a-border-width * **/css/css-values/lh-unit-003.html** * **/css/css-values/viewport-units-compute.html** * **/css/css-values/viewport-units-keyframes.html** * **/css/css-values/viewport-units-media-queries.html** * **/css/css-values/viewport-units-writing-mode.html** * **/css/cssom-view/elementsFromPoint-table.html** * **/css/cssom-view/scroll-behavior-default-css.html** * **/css/cssom-view/scroll-behavior-element.html** * **/css/cssom-view/scroll-behavior-main-frame-root.html** * **/css/cssom-view/scroll-behavior-main-frame-window.html** * **/css/cssom-view/scroll-behavior-smooth-navigation.html** * **/css/cssom-view/scroll-behavior-subframe-root.html** * **/css/cssom/computed-style-003.html** * **/css/cssom/computed-style-004.html** * **/css/cssom/font-variant-shorthand-serialization.html** * **/css/selectors/dir-selector-auto.html** * **/css/selectors/has-argument-with-explicit-scope.html** * **/css/selectors/has-basic.html** * **/css/selectors/has-relative-argument.html** * **/css/selectors/invalidation/attribute-or-elemental-selectors-in-has.html** * **/css/selectors/invalidation/child-indexed-pseudo-classes-in-has.html** * **/css/selectors/invalidation/dir-pseudo-class-in-has.html** * **/css/selectors/invalidation/empty-pseudo-in-has.html** * **/css/selectors/invalidation/has-in-adjacent-position.html** * **/css/selectors/invalidation/has-in-ancestor-position.html** * **/css/selectors/invalidation/has-in-parent-position.html** * **/css/selectors/invalidation/has-in-sibling-position.html** * **/css/selectors/invalidation/has-invalidation-after-removing-non-first-element.html** * **/css/selectors/invalidation/has-invalidation-for-wiping-an-element.html** * **/css/selectors/invalidation/has-sibling.html** * **/css/selectors/invalidation/has-with-not.html** * **/css/selectors/invalidation/has-with-pseudo-class.html** * **/css/selectors/invalidation/input-pseudo-classes-in-has.html** * **/css/selectors/invalidation/is-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/lang-pseudo-class-in-has.html** * **/css/selectors/invalidation/not-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/typed-child-indexed-pseudo-classes-in-has.html** * **/css/selectors/is-where-basic.html** * **/css/selectors/is-where-not.html** * **/html/rendering/non-replaced-elements/tables/form-in-tables.html** * /html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update- * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-attribute-changes.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-normal-descendant-change.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-remove.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow-aspect-ratio.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow.html** * **/html/semantics/interactive-elements/the-dialog-element/inertness-with-modal-dialogs-and-iframes.html** * **/html/semantics/popovers/popover-stacking.html** * **/referrer-policy/generic/inheritance/popup-inheritance-form-submission.html** * **/resource-timing/resource-reload-TAO.html** * **/selection/bidi/modify.tentative.html** * **/selection/contenteditable/modify.tentative.html** * **/selection/textcontrols/selectionchange.html** * **/css/CSS2/normal-flow/block-in-inline-client-rects-001.html** * **/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html** * **/css/css-animations/computed-style-animation-parsing.html** * **/css/css-variables/variables-substitute-guaranteed-invalid.html** * **/css/cssom-view/elementsFromPoint-simple.html** * **/css/cssom/CSSStyleSheet-modify-after-removal.html** * **/css/cssom/getComputedStyle-display-none-001.html** * **/css/selectors/focus-visible-script-focus-001.html** * **/css/selectors/has-specificity.html** * **/css/selectors/invalidation/is.html** * **/css/selectors/invalidation/not-002.html** * **/dom/events/EventListener-handleEvent-cross-realm.html** * **/dom/traversal/TreeWalker-acceptNode-filter-cross-realm.html** * **/html/browsers/the-window-object/window-properties.https.html** * **/html/browsers/the-window-object/window-prototype-chain.html** * **/html/browsers/windows/nested-browsing-contexts/frameElement.sub.html** * **/html/dom/aria-element-reflection.html** * **/html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update-with-border-object-fit.html** * **/html/semantics/forms/form-submission-0/form-double-submit-multiple-targets.html** * **/html/semantics/forms/the-input-element/show-picker-cross-origin-iframe.html** * **/html/webappapis/scripting/events/compile-event-handler-lexical-scopes-form-owner.html** * **/quirks/unitless-length/excluded-properties-002.html** </details> <details><summary>22× tests with failures that looked interesting</summary> * 1× CRASH [expected ...] * **/css/css-fonts/crash-large-grapheme-cluster.html** crash is subject of test * 6× FAIL [expected PASS] /... (reftest) * **/css/css-flexbox/anonymous-flex-item-005.html** old pass was spurious * **/css/css-flexbox/anonymous-flex-item-006.html** old pass was spurious * **/css/css-text-decor/text-decoration-line-recalc.html** old pass was spurious; ‘text-decoration’ shorthand unimplemented * **/css/css-ui/appearance-auto-non-html-namespace-001.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-inherit-rtl.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-rtl.html** old pass was spurious * 13× TIMEOUT [expected ...] * **/css/css-fonts/font-size-monospace-adjust.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/css/cssom-view/background-change-during-smooth-scroll.html** timeout is subject of test * **/css/selectors/invalidation/has-complexity.html** timeout is subject of test * **/css/selectors/invalidation/media-loading-pseudo-classes-in-has.html** timeout is subject of test; :has() unimplemented * **/fetch/stale-while-revalidate/stale-image.html** timeout is subject of test * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigates-multiple-frames.html** timeout is subject of test * **/html/rendering/widgets/appearance/appearance-animation-001.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-animation-002.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-transition-001.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-002.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-003.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/resource-timing/opaque-origin.html** timeout is subject of test * **/selection/textcontrols/selectionchange-bubble.html** timeout is subject of test * **/webidl/ecmascript-binding/invalid-this-value-cross-realm.html** ‘HTMLDocument’ unimplemented </details> ---  - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [x] These changes fix #27949 (GitHub issue number if applicable)  - [x] There are tests for these changes OR - [ ] These changes do not require tests because ___

@pylbrecht

HTML #named-access-on-the-window-object This patch implements [named access on the window object](https://html.spec.whatwg.org/#named-access-on-the-window-object) based on @pylbrecht’s and @yvt’s previous work (see also #27952, #25562, #21869, #19904). That work makes 130 tests pass, and I’ve made some additional changes to make [the test for the feature itself](https://wpt.live/webidl/ecmascript-binding/window-named-properties-object.html) pass too, but I haven’t worked with mozjs before, so I have no idea if I’ve gone about my changes the Right Way. In particular, this patch: * [x] applies @pylbrecht’s patch (#27952) * [x] resolves conflicts related to #29079 and #28546 (5ae0ca4) * [x] applies @yvt’s patch to the segfault in getPrototypeIfOrdinary (1e24ffd) * [x] reverts the change introducing Untransplantable (76dc35a), since #28534 was abandoned in favour of #28536 * [x] triages the unexpected WPT results, updating expectations as needed (see below) * [x] fixes the failures in /webidl/ecmascript-binding/window-named-properties-object.html (3844f69) * [x] fixes the failures in the [[GetOwnProperty]] subtest (75c24e9) * [x] fixes the failures in the [[DefineOwnProperty]] subtest (e4e7a14) * [x] fixes the failures in the [[HasProperty]] subtest (75c24e9) * [x] fixes the failures in the [[Get]] subtest (4bafb27) * [x] fixes the failures in the [[Set]] (direct) subtest (e4e7a14) * [x] fixes the failures in the [[Delete]] subtest (4bafb27) * [x] fixes the failures in the [[OwnPropertyKeys]] subtest (afcd24a) * [x] resolves the todos and fixmes * [x] Document: handle exposed objects ×3 (ed3e37b) * [x] Window::NamedGetter: document.get_elements_with_id() (618ef57) * [x] get_own_property_descriptor: check for interactions with indexed access (b906fae) * [x] create trap: pass proper classp (618ef57) <details><summary>131× tests that now pass</summary> * **/webidl/ecmascript-binding/window-named-properties-object.html** *directly relevant to this patch* * **/FileAPI/Blob-methods-from-detached-frame.html** done #29450 #29451 * **/cors/script-304.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-in-inline-that-had-block.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-that-had-block.html** * **/css/CSS2/floats-clear/remove-block-before-self-collapsing-sibling-with-clearance.html** * **/css/CSS2/floats/computed-float-position-absolute.html** * **/css/CSS2/normal-flow/block-in-inline-hittest-float-001.html** * **/css/CSS2/normal-flow/block-in-inline-insert-018.html** * **/css/CSS2/normal-flow/margin-collapse-through-percentage-padding.html** * **/css/CSS2/positioning/abspos-change-in-inline-block.html** * **/css/CSS2/positioning/abspos-width-change-inline-container-001.html** * **/css/CSS2/positioning/detach-abspos-before-layout.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable-2.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html** * **/css/CSS2/stacking-context/composite-change-after-scroll-preserves-stacking-order.html** * **/css/CSS2/stacking-context/opacity-change-parent-stacking-context.html** * **/css/CSS2/stacking-context/opacity-change-twice-stacking-context.html** * **/css/CSS2/stacking-context/opacity-transition-change-parent-stacking-context.html** * **/css/css-animations/animation-base-response-002.html** * **/css/css-animations/style-animation-parsing.html** * **/css/css-backgrounds/background-clip-color-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-conic-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-linear-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-radial-repaint.html** * **/css/css-backgrounds/background-image-none-gradient-repaint.html** * **/css/css-backgrounds/border-radius-dynamic-from-no-radius.html** * **/css/css-backgrounds/child-move-reveals-parent-background.html** * **/css/css-color/filters-under-will-change-opacity.html** * **/css/css-flexbox/anonymous-flex-item-001.html** * **/css/css-flexbox/anonymous-flex-item-003.html** * **/css/css-flexbox/dynamic-bsize-change.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-016.html** * **/css/cssom/at-namespace.html** * **/css/cssom/computed-style-002.html** * **/css/cssom/getComputedStyle-display-none-002.html** * **/css/cssom/getComputedStyle-display-none-003.html** * **/css/cssom/preferred-stylesheet-reversed-order.html** * **/css/cssom-view/HTMLImageElement-x-and-y-ignore-transforms.html** * **/css/cssom-view/pt-to-px-width.html** * **/css/cssom-view/scroll-back-to-initial-position.html** * **/css/css-text-decor/text-decoration-color-recalc-002.html** * **/css/css-text-decor/text-decoration-line-grammar-error-color-dynamic-001.optional.html** * **/css/css-text-decor/text-decoration-line-spelling-error-color-dynamic-001.optional.html** * **/css/css-text/text-indent/percentage-value-intrinsic-size.html** * **/css/css-text/white-space/display-contents-remove-whitespace-change.html** * **/css/css-text/white-space/white-space-empty-text-sibling.html** * **/css/css-transforms/change-perspective-property.html** * **/css/css-transforms/change-scale-wide-range.html** * **/css/css-transforms/change-transform-origin-property.html** * **/css/css-transforms/dynamic-fixed-pos-cb-change.html** * **/css/css-transforms/individual-transform/change-rotate-property.html** * **/css/css-transforms/individual-transform/change-scale-property.html** * **/css/css-transforms/paint-order-with-transform-change.html** * **/css/css-transforms/size-change-under-backface-visibility-hidden.html** * **/css/css-transforms/subpixel-transform-changes-001.html** * **/css/css-transforms/subpixel-transform-changes-002.html** * **/css/css-transforms/subpixel-transform-changes-003.html** * **/css/css-transforms/subpixel-transform-changes-004.html** * **/css/css-transitions/transition-reparented.html** * **/css/css-ui/historical/moz-user-modify-01.html** * **/css/css-ui/historical/user-modify-01.html** * **/css/css-ui/historical/webkit-user-modify-01.html** * **/css/css-ui/resize-change-margin.html** * **/css/css-ui/text-overflow-change-color.html** * **/css/css-ui/text-overflow-ellipsis-width-001.html** * **/css/css-values/animations/line-height-lh-transition.html** * **/css/css-values/calc-nesting.html** * **/css/css-values/update-subpixel-rem-unit.html** * **/css/css-values/viewport-units-modify.html** * **/css/css-variables/css-variable-change-style-001.html** * **/css/css-variables/css-variable-change-style-002.html** * **/css/css-variables/variable-cycles.html** * **/css/selectors/attribute-selectors/style-attribute-selector.html** * **/css/selectors/i18n/lang-pseudo-class-disconnected.html** * **/css/selectors/invalidation/attribute.html** * **/css/selectors/invalidation/class-id-attr.html** * **/css/selectors/invalidation/defined.html** * **/css/selectors/invalidation/sheet-going-away-001.html** * **/css/selectors/invalidation/sibling.html** * **/css/selectors/missing-right-token.html** * **/css/selectors/not-complex.html** * **/css/selectors/not-specificity.html** * **/css/selectors/nth-of-type-namespace.html** * **/css/selectors/selectors-case-sensitive-001.html** * **/css/selectors/visited-inheritance.html** * **/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html** * **/dom/events/event-global-is-still-set-when-coercing-beforeunload-result.html** * **/dom/nodes/remove-and-adopt-thcrash.html** * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading.html** * **/html/browsers/history/the-history-interface/history_back_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_forward_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_go_cross_realm_method.html** * **/html/browsers/the-window-object/named-access-on-the-window-object/window-named-properties.html** * **/html/dom/elements/images/bypass-cache-revalidation.html** * **/html/rendering/non-replaced-elements/tables/table-ua-stylesheet.html** * **/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-alt-crash-001.html** * **/html/rendering/replaced-elements/embedded-content/change-src-while-not-displayed.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe-in-multicol.sub.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe.sub.html** * **/html/rendering/replaced-elements/embedded-content/tall-cross-domain-iframe-in-scrolled.sub.html** * **/html/rendering/widgets/the-select-element/select-invalidation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_iframe_src_navigation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_location_assignment.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-focus.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-gbcr.html** * **/html/semantics/embedded-content/the-iframe-element/iframe-network-error.sub.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-anchor.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-attribute-reset.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-change.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-large-scale-change.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-clip-path.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-zero-intersection-area.html** * **/html/semantics/embedded-content/the-img-element/image-loading-subpixel-clip.html** * **/html/semantics/forms/form-submission-0/form-double-submit-to-different-origin-frame.html** * **/html/semantics/forms/form-submission-0/form-submit-iframe-then-location-navigate.html** * **/html/semantics/forms/form-submission-0/reparent-form-during-planned-navigation-task.html** * **/html/semantics/forms/the-button-element/button-willvalidate-readonly-attribute.html** * **/html/semantics/forms/the-input-element/datetime-local-trailing-zeros.html** * **/html/semantics/forms/the-input-element/radio-morphed.html** * **/html/semantics/forms/the-progress-element/progress.html** * **/html/semantics/forms/the-select-element/select-willvalidate-readonly-attribute.html** * **/html/semantics/selectors/pseudo-classes/placeholder-shown-type-change.html** * **/html/syntax/serializing-html-fragments/initial-linefeed-pre.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-errorevent.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-event.html** * **/quirks/unitless-length/excluded-properties-001.html** * **/quirks/unitless-length/excluded-properties-003.html** * **/selection/caret/empty-elements.html** * **/selection/contenteditable/cefalse-on-boundaries.html** * **/selection/textcontrols/onselectionchange-content-attribute.html** </details> <details><summary>94× tests that improve but still fail in a way that’s clearly the subject of the test</summary> * **/css/css-animations/animation-base-response-001.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-visited.html** * **/css/css-backgrounds/inheritance.sub.html** * **/css/css-backgrounds/local-attachment-content-box-scroll.html** * **/css/css-color/canvas-change-opacity.html** * **/css/css-color/color-initial-canvastext.html** * **/css/css-flexbox/flex-aspect-ratio-img-column-010.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-004.html** * **/css/css-fonts/parsing/font-face-src-format.html** getter works but insertRule does nothing * **/css/css-fonts/parsing/font-face-src-list.html** as above * **/css/css-fonts/parsing/font-face-src-local.html** as above, but also delayed length change? * **/css/css-fonts/parsing/font-face-src-tech.html** as above * **/css/css-text/white-space/trailing-space-before-br-001.html** * **/css/css-transforms/3d-rendering-context-behavior.html** failures are subject of test, but also blank page? * **/css/css-transforms/individual-transform/change-translate-property.html** * **/css/css-transforms/preserve-3d-flat-grouping-properties.html** * **/css/css-transforms/transforms-support-calc.html** * **/css/css-transitions/inherit-height-transition.html** * **/css/css-ui/inheritance.html** * **/css/css-ui/parsing/outline-width-computed.html** failures are subject of test; https://drafts.csswg.org/css-values-4/#snap-a-length-as-a-border-width * **/css/css-values/lh-unit-003.html** * **/css/css-values/viewport-units-compute.html** * **/css/css-values/viewport-units-keyframes.html** * **/css/css-values/viewport-units-media-queries.html** * **/css/css-values/viewport-units-writing-mode.html** * **/css/cssom-view/elementsFromPoint-table.html** * **/css/cssom-view/scroll-behavior-default-css.html** * **/css/cssom-view/scroll-behavior-element.html** * **/css/cssom-view/scroll-behavior-main-frame-root.html** * **/css/cssom-view/scroll-behavior-main-frame-window.html** * **/css/cssom-view/scroll-behavior-smooth-navigation.html** * **/css/cssom-view/scroll-behavior-subframe-root.html** * **/css/cssom/computed-style-003.html** * **/css/cssom/computed-style-004.html** * **/css/cssom/font-variant-shorthand-serialization.html** * **/css/selectors/dir-selector-auto.html** * **/css/selectors/has-argument-with-explicit-scope.html** * **/css/selectors/has-basic.html** * **/css/selectors/has-relative-argument.html** * **/css/selectors/invalidation/attribute-or-elemental-selectors-in-has.html** * **/css/selectors/invalidation/child-indexed-pseudo-classes-in-has.html** * **/css/selectors/invalidation/dir-pseudo-class-in-has.html** * **/css/selectors/invalidation/empty-pseudo-in-has.html** * **/css/selectors/invalidation/has-in-adjacent-position.html** * **/css/selectors/invalidation/has-in-ancestor-position.html** * **/css/selectors/invalidation/has-in-parent-position.html** * **/css/selectors/invalidation/has-in-sibling-position.html** * **/css/selectors/invalidation/has-invalidation-after-removing-non-first-element.html** * **/css/selectors/invalidation/has-invalidation-for-wiping-an-element.html** * **/css/selectors/invalidation/has-sibling.html** * **/css/selectors/invalidation/has-with-not.html** * **/css/selectors/invalidation/has-with-pseudo-class.html** * **/css/selectors/invalidation/input-pseudo-classes-in-has.html** * **/css/selectors/invalidation/is-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/lang-pseudo-class-in-has.html** * **/css/selectors/invalidation/not-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/typed-child-indexed-pseudo-classes-in-has.html** * **/css/selectors/is-where-basic.html** * **/css/selectors/is-where-not.html** * **/html/rendering/non-replaced-elements/tables/form-in-tables.html** * /html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update- * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-attribute-changes.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-normal-descendant-change.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-remove.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow-aspect-ratio.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow.html** * **/html/semantics/interactive-elements/the-dialog-element/inertness-with-modal-dialogs-and-iframes.html** * **/html/semantics/popovers/popover-stacking.html** * **/referrer-policy/generic/inheritance/popup-inheritance-form-submission.html** * **/resource-timing/resource-reload-TAO.html** * **/selection/bidi/modify.tentative.html** * **/selection/contenteditable/modify.tentative.html** * **/selection/textcontrols/selectionchange.html** * **/css/CSS2/normal-flow/block-in-inline-client-rects-001.html** * **/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html** * **/css/css-animations/computed-style-animation-parsing.html** * **/css/css-variables/variables-substitute-guaranteed-invalid.html** * **/css/cssom-view/elementsFromPoint-simple.html** * **/css/cssom/CSSStyleSheet-modify-after-removal.html** * **/css/cssom/getComputedStyle-display-none-001.html** * **/css/selectors/focus-visible-script-focus-001.html** * **/css/selectors/has-specificity.html** * **/css/selectors/invalidation/is.html** * **/css/selectors/invalidation/not-002.html** * **/dom/events/EventListener-handleEvent-cross-realm.html** * **/dom/traversal/TreeWalker-acceptNode-filter-cross-realm.html** * **/html/browsers/the-window-object/window-properties.https.html** * **/html/browsers/the-window-object/window-prototype-chain.html** * **/html/browsers/windows/nested-browsing-contexts/frameElement.sub.html** * **/html/dom/aria-element-reflection.html** * **/html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update-with-border-object-fit.html** * **/html/semantics/forms/form-submission-0/form-double-submit-multiple-targets.html** * **/html/semantics/forms/the-input-element/show-picker-cross-origin-iframe.html** * **/html/webappapis/scripting/events/compile-event-handler-lexical-scopes-form-owner.html** * **/quirks/unitless-length/excluded-properties-002.html** </details> <details><summary>22× tests with failures that looked interesting</summary> * 1× CRASH [expected ...] * **/css/css-fonts/crash-large-grapheme-cluster.html** crash is subject of test * 6× FAIL [expected PASS] /... (reftest) * **/css/css-flexbox/anonymous-flex-item-005.html** old pass was spurious * **/css/css-flexbox/anonymous-flex-item-006.html** old pass was spurious * **/css/css-text-decor/text-decoration-line-recalc.html** old pass was spurious; ‘text-decoration’ shorthand unimplemented * **/css/css-ui/appearance-auto-non-html-namespace-001.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-inherit-rtl.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-rtl.html** old pass was spurious * 13× TIMEOUT [expected ...] * **/css/css-fonts/font-size-monospace-adjust.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/css/cssom-view/background-change-during-smooth-scroll.html** timeout is subject of test * **/css/selectors/invalidation/has-complexity.html** timeout is subject of test * **/css/selectors/invalidation/media-loading-pseudo-classes-in-has.html** timeout is subject of test; :has() unimplemented * **/fetch/stale-while-revalidate/stale-image.html** timeout is subject of test * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigates-multiple-frames.html** timeout is subject of test * **/html/rendering/widgets/appearance/appearance-animation-001.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-animation-002.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-transition-001.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-002.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-003.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/resource-timing/opaque-origin.html** timeout is subject of test * **/selection/textcontrols/selectionchange-bubble.html** timeout is subject of test * **/webidl/ecmascript-binding/invalid-this-value-cross-realm.html** ‘HTMLDocument’ unimplemented </details> ---  - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [x] These changes fix #27949 (GitHub issue number if applicable)  - [x] There are tests for these changes OR - [ ] These changes do not require tests because ___

@pylbrecht

HTML #named-access-on-the-window-object This patch implements [named access on the window object](https://html.spec.whatwg.org/#named-access-on-the-window-object) based on @pylbrecht’s and @yvt’s previous work (see also #27952, #25562, #21869, #19904). That work makes 130 tests pass, and I’ve made some additional changes to make [the test for the feature itself](https://wpt.live/webidl/ecmascript-binding/window-named-properties-object.html) pass too, but I haven’t worked with mozjs before, so I have no idea if I’ve gone about my changes the Right Way. In particular, this patch: * [x] applies @pylbrecht’s patch (#27952) * [x] resolves conflicts related to #29079 and #28546 (5ae0ca4) * [x] applies @yvt’s patch to the segfault in getPrototypeIfOrdinary (1e24ffd) * [x] reverts the change introducing Untransplantable (76dc35a), since #28534 was abandoned in favour of #28536 * [x] triages the unexpected WPT results, updating expectations as needed (see below) * [x] fixes the failures in /webidl/ecmascript-binding/window-named-properties-object.html (3844f69) * [x] fixes the failures in the [[GetOwnProperty]] subtest (75c24e9) * [x] fixes the failures in the [[DefineOwnProperty]] subtest (e4e7a14) * [x] fixes the failures in the [[HasProperty]] subtest (75c24e9) * [x] fixes the failures in the [[Get]] subtest (4bafb27) * [x] fixes the failures in the [[Set]] (direct) subtest (e4e7a14) * [x] fixes the failures in the [[Delete]] subtest (4bafb27) * [x] fixes the failures in the [[OwnPropertyKeys]] subtest (afcd24a) * [x] resolves the todos and fixmes * [x] Document: handle exposed objects ×3 (ed3e37b) * [x] Window::NamedGetter: document.get_elements_with_id() (618ef57) * [x] get_own_property_descriptor: check for interactions with indexed access (b906fae) * [x] create trap: pass proper classp (618ef57) <details><summary>131× tests that now pass</summary> * **/webidl/ecmascript-binding/window-named-properties-object.html** *directly relevant to this patch* * **/FileAPI/Blob-methods-from-detached-frame.html** done #29450 #29451 * **/cors/script-304.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-in-inline-that-had-block.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-that-had-block.html** * **/css/CSS2/floats-clear/remove-block-before-self-collapsing-sibling-with-clearance.html** * **/css/CSS2/floats/computed-float-position-absolute.html** * **/css/CSS2/normal-flow/block-in-inline-hittest-float-001.html** * **/css/CSS2/normal-flow/block-in-inline-insert-018.html** * **/css/CSS2/normal-flow/margin-collapse-through-percentage-padding.html** * **/css/CSS2/positioning/abspos-change-in-inline-block.html** * **/css/CSS2/positioning/abspos-width-change-inline-container-001.html** * **/css/CSS2/positioning/detach-abspos-before-layout.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable-2.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html** * **/css/CSS2/stacking-context/composite-change-after-scroll-preserves-stacking-order.html** * **/css/CSS2/stacking-context/opacity-change-parent-stacking-context.html** * **/css/CSS2/stacking-context/opacity-change-twice-stacking-context.html** * **/css/CSS2/stacking-context/opacity-transition-change-parent-stacking-context.html** * **/css/css-animations/animation-base-response-002.html** * **/css/css-animations/style-animation-parsing.html** * **/css/css-backgrounds/background-clip-color-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-conic-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-linear-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-radial-repaint.html** * **/css/css-backgrounds/background-image-none-gradient-repaint.html** * **/css/css-backgrounds/border-radius-dynamic-from-no-radius.html** * **/css/css-backgrounds/child-move-reveals-parent-background.html** * **/css/css-color/filters-under-will-change-opacity.html** * **/css/css-flexbox/anonymous-flex-item-001.html** * **/css/css-flexbox/anonymous-flex-item-003.html** * **/css/css-flexbox/dynamic-bsize-change.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-016.html** * **/css/cssom/at-namespace.html** * **/css/cssom/computed-style-002.html** * **/css/cssom/getComputedStyle-display-none-002.html** * **/css/cssom/getComputedStyle-display-none-003.html** * **/css/cssom/preferred-stylesheet-reversed-order.html** * **/css/cssom-view/HTMLImageElement-x-and-y-ignore-transforms.html** * **/css/cssom-view/pt-to-px-width.html** * **/css/cssom-view/scroll-back-to-initial-position.html** * **/css/css-text-decor/text-decoration-color-recalc-002.html** * **/css/css-text-decor/text-decoration-line-grammar-error-color-dynamic-001.optional.html** * **/css/css-text-decor/text-decoration-line-spelling-error-color-dynamic-001.optional.html** * **/css/css-text/text-indent/percentage-value-intrinsic-size.html** * **/css/css-text/white-space/display-contents-remove-whitespace-change.html** * **/css/css-text/white-space/white-space-empty-text-sibling.html** * **/css/css-transforms/change-perspective-property.html** * **/css/css-transforms/change-scale-wide-range.html** * **/css/css-transforms/change-transform-origin-property.html** * **/css/css-transforms/dynamic-fixed-pos-cb-change.html** * **/css/css-transforms/individual-transform/change-rotate-property.html** * **/css/css-transforms/individual-transform/change-scale-property.html** * **/css/css-transforms/paint-order-with-transform-change.html** * **/css/css-transforms/size-change-under-backface-visibility-hidden.html** * **/css/css-transforms/subpixel-transform-changes-001.html** * **/css/css-transforms/subpixel-transform-changes-002.html** * **/css/css-transforms/subpixel-transform-changes-003.html** * **/css/css-transforms/subpixel-transform-changes-004.html** * **/css/css-transitions/transition-reparented.html** * **/css/css-ui/historical/moz-user-modify-01.html** * **/css/css-ui/historical/user-modify-01.html** * **/css/css-ui/historical/webkit-user-modify-01.html** * **/css/css-ui/resize-change-margin.html** * **/css/css-ui/text-overflow-change-color.html** * **/css/css-ui/text-overflow-ellipsis-width-001.html** * **/css/css-values/animations/line-height-lh-transition.html** * **/css/css-values/calc-nesting.html** * **/css/css-values/update-subpixel-rem-unit.html** * **/css/css-values/viewport-units-modify.html** * **/css/css-variables/css-variable-change-style-001.html** * **/css/css-variables/css-variable-change-style-002.html** * **/css/css-variables/variable-cycles.html** * **/css/selectors/attribute-selectors/style-attribute-selector.html** * **/css/selectors/i18n/lang-pseudo-class-disconnected.html** * **/css/selectors/invalidation/attribute.html** * **/css/selectors/invalidation/class-id-attr.html** * **/css/selectors/invalidation/defined.html** * **/css/selectors/invalidation/sheet-going-away-001.html** * **/css/selectors/invalidation/sibling.html** * **/css/selectors/missing-right-token.html** * **/css/selectors/not-complex.html** * **/css/selectors/not-specificity.html** * **/css/selectors/nth-of-type-namespace.html** * **/css/selectors/selectors-case-sensitive-001.html** * **/css/selectors/visited-inheritance.html** * **/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html** * **/dom/events/event-global-is-still-set-when-coercing-beforeunload-result.html** * **/dom/nodes/remove-and-adopt-thcrash.html** * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading.html** * **/html/browsers/history/the-history-interface/history_back_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_forward_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_go_cross_realm_method.html** * **/html/browsers/the-window-object/named-access-on-the-window-object/window-named-properties.html** * **/html/dom/elements/images/bypass-cache-revalidation.html** * **/html/rendering/non-replaced-elements/tables/table-ua-stylesheet.html** * **/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-alt-crash-001.html** * **/html/rendering/replaced-elements/embedded-content/change-src-while-not-displayed.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe-in-multicol.sub.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe.sub.html** * **/html/rendering/replaced-elements/embedded-content/tall-cross-domain-iframe-in-scrolled.sub.html** * **/html/rendering/widgets/the-select-element/select-invalidation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_iframe_src_navigation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_location_assignment.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-focus.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-gbcr.html** * **/html/semantics/embedded-content/the-iframe-element/iframe-network-error.sub.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-anchor.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-attribute-reset.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-change.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-large-scale-change.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-clip-path.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-zero-intersection-area.html** * **/html/semantics/embedded-content/the-img-element/image-loading-subpixel-clip.html** * **/html/semantics/forms/form-submission-0/form-double-submit-to-different-origin-frame.html** * **/html/semantics/forms/form-submission-0/form-submit-iframe-then-location-navigate.html** * **/html/semantics/forms/form-submission-0/reparent-form-during-planned-navigation-task.html** * **/html/semantics/forms/the-button-element/button-willvalidate-readonly-attribute.html** * **/html/semantics/forms/the-input-element/datetime-local-trailing-zeros.html** * **/html/semantics/forms/the-input-element/radio-morphed.html** * **/html/semantics/forms/the-progress-element/progress.html** * **/html/semantics/forms/the-select-element/select-willvalidate-readonly-attribute.html** * **/html/semantics/selectors/pseudo-classes/placeholder-shown-type-change.html** * **/html/syntax/serializing-html-fragments/initial-linefeed-pre.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-errorevent.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-event.html** * **/quirks/unitless-length/excluded-properties-001.html** * **/quirks/unitless-length/excluded-properties-003.html** * **/selection/caret/empty-elements.html** * **/selection/contenteditable/cefalse-on-boundaries.html** * **/selection/textcontrols/onselectionchange-content-attribute.html** </details> <details><summary>94× tests that improve but still fail in a way that’s clearly the subject of the test</summary> * **/css/css-animations/animation-base-response-001.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-visited.html** * **/css/css-backgrounds/inheritance.sub.html** * **/css/css-backgrounds/local-attachment-content-box-scroll.html** * **/css/css-color/canvas-change-opacity.html** * **/css/css-color/color-initial-canvastext.html** * **/css/css-flexbox/flex-aspect-ratio-img-column-010.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-004.html** * **/css/css-fonts/parsing/font-face-src-format.html** getter works but insertRule does nothing * **/css/css-fonts/parsing/font-face-src-list.html** as above * **/css/css-fonts/parsing/font-face-src-local.html** as above, but also delayed length change? * **/css/css-fonts/parsing/font-face-src-tech.html** as above * **/css/css-text/white-space/trailing-space-before-br-001.html** * **/css/css-transforms/3d-rendering-context-behavior.html** failures are subject of test, but also blank page? * **/css/css-transforms/individual-transform/change-translate-property.html** * **/css/css-transforms/preserve-3d-flat-grouping-properties.html** * **/css/css-transforms/transforms-support-calc.html** * **/css/css-transitions/inherit-height-transition.html** * **/css/css-ui/inheritance.html** * **/css/css-ui/parsing/outline-width-computed.html** failures are subject of test; https://drafts.csswg.org/css-values-4/#snap-a-length-as-a-border-width * **/css/css-values/lh-unit-003.html** * **/css/css-values/viewport-units-compute.html** * **/css/css-values/viewport-units-keyframes.html** * **/css/css-values/viewport-units-media-queries.html** * **/css/css-values/viewport-units-writing-mode.html** * **/css/cssom-view/elementsFromPoint-table.html** * **/css/cssom-view/scroll-behavior-default-css.html** * **/css/cssom-view/scroll-behavior-element.html** * **/css/cssom-view/scroll-behavior-main-frame-root.html** * **/css/cssom-view/scroll-behavior-main-frame-window.html** * **/css/cssom-view/scroll-behavior-smooth-navigation.html** * **/css/cssom-view/scroll-behavior-subframe-root.html** * **/css/cssom/computed-style-003.html** * **/css/cssom/computed-style-004.html** * **/css/cssom/font-variant-shorthand-serialization.html** * **/css/selectors/dir-selector-auto.html** * **/css/selectors/has-argument-with-explicit-scope.html** * **/css/selectors/has-basic.html** * **/css/selectors/has-relative-argument.html** * **/css/selectors/invalidation/attribute-or-elemental-selectors-in-has.html** * **/css/selectors/invalidation/child-indexed-pseudo-classes-in-has.html** * **/css/selectors/invalidation/dir-pseudo-class-in-has.html** * **/css/selectors/invalidation/empty-pseudo-in-has.html** * **/css/selectors/invalidation/has-in-adjacent-position.html** * **/css/selectors/invalidation/has-in-ancestor-position.html** * **/css/selectors/invalidation/has-in-parent-position.html** * **/css/selectors/invalidation/has-in-sibling-position.html** * **/css/selectors/invalidation/has-invalidation-after-removing-non-first-element.html** * **/css/selectors/invalidation/has-invalidation-for-wiping-an-element.html** * **/css/selectors/invalidation/has-sibling.html** * **/css/selectors/invalidation/has-with-not.html** * **/css/selectors/invalidation/has-with-pseudo-class.html** * **/css/selectors/invalidation/input-pseudo-classes-in-has.html** * **/css/selectors/invalidation/is-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/lang-pseudo-class-in-has.html** * **/css/selectors/invalidation/not-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/typed-child-indexed-pseudo-classes-in-has.html** * **/css/selectors/is-where-basic.html** * **/css/selectors/is-where-not.html** * **/html/rendering/non-replaced-elements/tables/form-in-tables.html** * /html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update- * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-attribute-changes.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-normal-descendant-change.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-remove.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow-aspect-ratio.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow.html** * **/html/semantics/interactive-elements/the-dialog-element/inertness-with-modal-dialogs-and-iframes.html** * **/html/semantics/popovers/popover-stacking.html** * **/referrer-policy/generic/inheritance/popup-inheritance-form-submission.html** * **/resource-timing/resource-reload-TAO.html** * **/selection/bidi/modify.tentative.html** * **/selection/contenteditable/modify.tentative.html** * **/selection/textcontrols/selectionchange.html** * **/css/CSS2/normal-flow/block-in-inline-client-rects-001.html** * **/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html** * **/css/css-animations/computed-style-animation-parsing.html** * **/css/css-variables/variables-substitute-guaranteed-invalid.html** * **/css/cssom-view/elementsFromPoint-simple.html** * **/css/cssom/CSSStyleSheet-modify-after-removal.html** * **/css/cssom/getComputedStyle-display-none-001.html** * **/css/selectors/focus-visible-script-focus-001.html** * **/css/selectors/has-specificity.html** * **/css/selectors/invalidation/is.html** * **/css/selectors/invalidation/not-002.html** * **/dom/events/EventListener-handleEvent-cross-realm.html** * **/dom/traversal/TreeWalker-acceptNode-filter-cross-realm.html** * **/html/browsers/the-window-object/window-properties.https.html** * **/html/browsers/the-window-object/window-prototype-chain.html** * **/html/browsers/windows/nested-browsing-contexts/frameElement.sub.html** * **/html/dom/aria-element-reflection.html** * **/html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update-with-border-object-fit.html** * **/html/semantics/forms/form-submission-0/form-double-submit-multiple-targets.html** * **/html/semantics/forms/the-input-element/show-picker-cross-origin-iframe.html** * **/html/webappapis/scripting/events/compile-event-handler-lexical-scopes-form-owner.html** * **/quirks/unitless-length/excluded-properties-002.html** </details> <details><summary>22× tests with failures that looked interesting</summary> * 1× CRASH [expected ...] * **/css/css-fonts/crash-large-grapheme-cluster.html** crash is subject of test * 6× FAIL [expected PASS] /... (reftest) * **/css/css-flexbox/anonymous-flex-item-005.html** old pass was spurious * **/css/css-flexbox/anonymous-flex-item-006.html** old pass was spurious * **/css/css-text-decor/text-decoration-line-recalc.html** old pass was spurious; ‘text-decoration’ shorthand unimplemented * **/css/css-ui/appearance-auto-non-html-namespace-001.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-inherit-rtl.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-rtl.html** old pass was spurious * 13× TIMEOUT [expected ...] * **/css/css-fonts/font-size-monospace-adjust.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/css/cssom-view/background-change-during-smooth-scroll.html** timeout is subject of test * **/css/selectors/invalidation/has-complexity.html** timeout is subject of test * **/css/selectors/invalidation/media-loading-pseudo-classes-in-has.html** timeout is subject of test; :has() unimplemented * **/fetch/stale-while-revalidate/stale-image.html** timeout is subject of test * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigates-multiple-frames.html** timeout is subject of test * **/html/rendering/widgets/appearance/appearance-animation-001.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-animation-002.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-transition-001.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-002.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-003.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/resource-timing/opaque-origin.html** timeout is subject of test * **/selection/textcontrols/selectionchange-bubble.html** timeout is subject of test * **/webidl/ecmascript-binding/invalid-this-value-cross-realm.html** ‘HTMLDocument’ unimplemented </details> ---  - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [x] These changes fix #27949 (GitHub issue number if applicable)  - [x] There are tests for these changes OR - [ ] These changes do not require tests because ___

@pylbrecht

HTML #named-access-on-the-window-object This patch implements [named access on the window object](https://html.spec.whatwg.org/#named-access-on-the-window-object) based on @pylbrecht’s and @yvt’s previous work (see also #27952, #25562, #21869, #19904). That work makes 130 tests pass, and I’ve made some additional changes to make [the test for the feature itself](https://wpt.live/webidl/ecmascript-binding/window-named-properties-object.html) pass too, but I haven’t worked with mozjs before, so I have no idea if I’ve gone about my changes the Right Way. In particular, this patch: * [x] applies @pylbrecht’s patch (#27952) * [x] resolves conflicts related to #29079 and #28546 (5ae0ca4) * [x] applies @yvt’s patch to the segfault in getPrototypeIfOrdinary (1e24ffd) * [x] reverts the change introducing Untransplantable (76dc35a), since #28534 was abandoned in favour of #28536 * [x] triages the unexpected WPT results, updating expectations as needed (see below) * [x] fixes the failures in /webidl/ecmascript-binding/window-named-properties-object.html (3844f69) * [x] fixes the failures in the [[GetOwnProperty]] subtest (75c24e9) * [x] fixes the failures in the [[DefineOwnProperty]] subtest (e4e7a14) * [x] fixes the failures in the [[HasProperty]] subtest (75c24e9) * [x] fixes the failures in the [[Get]] subtest (4bafb27) * [x] fixes the failures in the [[Set]] (direct) subtest (e4e7a14) * [x] fixes the failures in the [[Delete]] subtest (4bafb27) * [x] fixes the failures in the [[OwnPropertyKeys]] subtest (afcd24a) * [x] resolves the todos and fixmes * [x] Document: handle exposed objects ×3 (ed3e37b) * [x] Window::NamedGetter: document.get_elements_with_id() (618ef57) * [x] get_own_property_descriptor: check for interactions with indexed access (b906fae) * [x] create trap: pass proper classp (618ef57) <details><summary>131× tests that now pass</summary> * **/webidl/ecmascript-binding/window-named-properties-object.html** *directly relevant to this patch* * **/FileAPI/Blob-methods-from-detached-frame.html** done #29450 #29451 * **/cors/script-304.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-in-inline-that-had-block.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-that-had-block.html** * **/css/CSS2/floats-clear/remove-block-before-self-collapsing-sibling-with-clearance.html** * **/css/CSS2/floats/computed-float-position-absolute.html** * **/css/CSS2/normal-flow/block-in-inline-hittest-float-001.html** * **/css/CSS2/normal-flow/block-in-inline-insert-018.html** * **/css/CSS2/normal-flow/margin-collapse-through-percentage-padding.html** * **/css/CSS2/positioning/abspos-change-in-inline-block.html** * **/css/CSS2/positioning/abspos-width-change-inline-container-001.html** * **/css/CSS2/positioning/detach-abspos-before-layout.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable-2.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html** * **/css/CSS2/stacking-context/composite-change-after-scroll-preserves-stacking-order.html** * **/css/CSS2/stacking-context/opacity-change-parent-stacking-context.html** * **/css/CSS2/stacking-context/opacity-change-twice-stacking-context.html** * **/css/CSS2/stacking-context/opacity-transition-change-parent-stacking-context.html** * **/css/css-animations/animation-base-response-002.html** * **/css/css-animations/style-animation-parsing.html** * **/css/css-backgrounds/background-clip-color-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-conic-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-linear-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-radial-repaint.html** * **/css/css-backgrounds/background-image-none-gradient-repaint.html** * **/css/css-backgrounds/border-radius-dynamic-from-no-radius.html** * **/css/css-backgrounds/child-move-reveals-parent-background.html** * **/css/css-color/filters-under-will-change-opacity.html** * **/css/css-flexbox/anonymous-flex-item-001.html** * **/css/css-flexbox/anonymous-flex-item-003.html** * **/css/css-flexbox/dynamic-bsize-change.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-016.html** * **/css/cssom/at-namespace.html** * **/css/cssom/computed-style-002.html** * **/css/cssom/getComputedStyle-display-none-002.html** * **/css/cssom/getComputedStyle-display-none-003.html** * **/css/cssom/preferred-stylesheet-reversed-order.html** * **/css/cssom-view/HTMLImageElement-x-and-y-ignore-transforms.html** * **/css/cssom-view/pt-to-px-width.html** * **/css/cssom-view/scroll-back-to-initial-position.html** * **/css/css-text-decor/text-decoration-color-recalc-002.html** * **/css/css-text-decor/text-decoration-line-grammar-error-color-dynamic-001.optional.html** * **/css/css-text-decor/text-decoration-line-spelling-error-color-dynamic-001.optional.html** * **/css/css-text/text-indent/percentage-value-intrinsic-size.html** * **/css/css-text/white-space/display-contents-remove-whitespace-change.html** * **/css/css-text/white-space/white-space-empty-text-sibling.html** * **/css/css-transforms/change-perspective-property.html** * **/css/css-transforms/change-scale-wide-range.html** * **/css/css-transforms/change-transform-origin-property.html** * **/css/css-transforms/dynamic-fixed-pos-cb-change.html** * **/css/css-transforms/individual-transform/change-rotate-property.html** * **/css/css-transforms/individual-transform/change-scale-property.html** * **/css/css-transforms/paint-order-with-transform-change.html** * **/css/css-transforms/size-change-under-backface-visibility-hidden.html** * **/css/css-transforms/subpixel-transform-changes-001.html** * **/css/css-transforms/subpixel-transform-changes-002.html** * **/css/css-transforms/subpixel-transform-changes-003.html** * **/css/css-transforms/subpixel-transform-changes-004.html** * **/css/css-transitions/transition-reparented.html** * **/css/css-ui/historical/moz-user-modify-01.html** * **/css/css-ui/historical/user-modify-01.html** * **/css/css-ui/historical/webkit-user-modify-01.html** * **/css/css-ui/resize-change-margin.html** * **/css/css-ui/text-overflow-change-color.html** * **/css/css-ui/text-overflow-ellipsis-width-001.html** * **/css/css-values/animations/line-height-lh-transition.html** * **/css/css-values/calc-nesting.html** * **/css/css-values/update-subpixel-rem-unit.html** * **/css/css-values/viewport-units-modify.html** * **/css/css-variables/css-variable-change-style-001.html** * **/css/css-variables/css-variable-change-style-002.html** * **/css/css-variables/variable-cycles.html** * **/css/selectors/attribute-selectors/style-attribute-selector.html** * **/css/selectors/i18n/lang-pseudo-class-disconnected.html** * **/css/selectors/invalidation/attribute.html** * **/css/selectors/invalidation/class-id-attr.html** * **/css/selectors/invalidation/defined.html** * **/css/selectors/invalidation/sheet-going-away-001.html** * **/css/selectors/invalidation/sibling.html** * **/css/selectors/missing-right-token.html** * **/css/selectors/not-complex.html** * **/css/selectors/not-specificity.html** * **/css/selectors/nth-of-type-namespace.html** * **/css/selectors/selectors-case-sensitive-001.html** * **/css/selectors/visited-inheritance.html** * **/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html** * **/dom/events/event-global-is-still-set-when-coercing-beforeunload-result.html** * **/dom/nodes/remove-and-adopt-thcrash.html** * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading.html** * **/html/browsers/history/the-history-interface/history_back_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_forward_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_go_cross_realm_method.html** * **/html/browsers/the-window-object/named-access-on-the-window-object/window-named-properties.html** * **/html/dom/elements/images/bypass-cache-revalidation.html** * **/html/rendering/non-replaced-elements/tables/table-ua-stylesheet.html** * **/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-alt-crash-001.html** * **/html/rendering/replaced-elements/embedded-content/change-src-while-not-displayed.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe-in-multicol.sub.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe.sub.html** * **/html/rendering/replaced-elements/embedded-content/tall-cross-domain-iframe-in-scrolled.sub.html** * **/html/rendering/widgets/the-select-element/select-invalidation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_iframe_src_navigation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_location_assignment.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-focus.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-gbcr.html** * **/html/semantics/embedded-content/the-iframe-element/iframe-network-error.sub.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-anchor.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-attribute-reset.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-change.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-large-scale-change.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-clip-path.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-zero-intersection-area.html** * **/html/semantics/embedded-content/the-img-element/image-loading-subpixel-clip.html** * **/html/semantics/forms/form-submission-0/form-double-submit-to-different-origin-frame.html** * **/html/semantics/forms/form-submission-0/form-submit-iframe-then-location-navigate.html** * **/html/semantics/forms/form-submission-0/reparent-form-during-planned-navigation-task.html** * **/html/semantics/forms/the-button-element/button-willvalidate-readonly-attribute.html** * **/html/semantics/forms/the-input-element/datetime-local-trailing-zeros.html** * **/html/semantics/forms/the-input-element/radio-morphed.html** * **/html/semantics/forms/the-progress-element/progress.html** * **/html/semantics/forms/the-select-element/select-willvalidate-readonly-attribute.html** * **/html/semantics/selectors/pseudo-classes/placeholder-shown-type-change.html** * **/html/syntax/serializing-html-fragments/initial-linefeed-pre.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-errorevent.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-event.html** * **/quirks/unitless-length/excluded-properties-001.html** * **/quirks/unitless-length/excluded-properties-003.html** * **/selection/caret/empty-elements.html** * **/selection/contenteditable/cefalse-on-boundaries.html** * **/selection/textcontrols/onselectionchange-content-attribute.html** </details> <details><summary>94× tests that improve but still fail in a way that’s clearly the subject of the test</summary> * **/css/css-animations/animation-base-response-001.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-visited.html** * **/css/css-backgrounds/inheritance.sub.html** * **/css/css-backgrounds/local-attachment-content-box-scroll.html** * **/css/css-color/canvas-change-opacity.html** * **/css/css-color/color-initial-canvastext.html** * **/css/css-flexbox/flex-aspect-ratio-img-column-010.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-004.html** * **/css/css-fonts/parsing/font-face-src-format.html** getter works but insertRule does nothing * **/css/css-fonts/parsing/font-face-src-list.html** as above * **/css/css-fonts/parsing/font-face-src-local.html** as above, but also delayed length change? * **/css/css-fonts/parsing/font-face-src-tech.html** as above * **/css/css-text/white-space/trailing-space-before-br-001.html** * **/css/css-transforms/3d-rendering-context-behavior.html** failures are subject of test, but also blank page? * **/css/css-transforms/individual-transform/change-translate-property.html** * **/css/css-transforms/preserve-3d-flat-grouping-properties.html** * **/css/css-transforms/transforms-support-calc.html** * **/css/css-transitions/inherit-height-transition.html** * **/css/css-ui/inheritance.html** * **/css/css-ui/parsing/outline-width-computed.html** failures are subject of test; https://drafts.csswg.org/css-values-4/#snap-a-length-as-a-border-width * **/css/css-values/lh-unit-003.html** * **/css/css-values/viewport-units-compute.html** * **/css/css-values/viewport-units-keyframes.html** * **/css/css-values/viewport-units-media-queries.html** * **/css/css-values/viewport-units-writing-mode.html** * **/css/cssom-view/elementsFromPoint-table.html** * **/css/cssom-view/scroll-behavior-default-css.html** * **/css/cssom-view/scroll-behavior-element.html** * **/css/cssom-view/scroll-behavior-main-frame-root.html** * **/css/cssom-view/scroll-behavior-main-frame-window.html** * **/css/cssom-view/scroll-behavior-smooth-navigation.html** * **/css/cssom-view/scroll-behavior-subframe-root.html** * **/css/cssom/computed-style-003.html** * **/css/cssom/computed-style-004.html** * **/css/cssom/font-variant-shorthand-serialization.html** * **/css/selectors/dir-selector-auto.html** * **/css/selectors/has-argument-with-explicit-scope.html** * **/css/selectors/has-basic.html** * **/css/selectors/has-relative-argument.html** * **/css/selectors/invalidation/attribute-or-elemental-selectors-in-has.html** * **/css/selectors/invalidation/child-indexed-pseudo-classes-in-has.html** * **/css/selectors/invalidation/dir-pseudo-class-in-has.html** * **/css/selectors/invalidation/empty-pseudo-in-has.html** * **/css/selectors/invalidation/has-in-adjacent-position.html** * **/css/selectors/invalidation/has-in-ancestor-position.html** * **/css/selectors/invalidation/has-in-parent-position.html** * **/css/selectors/invalidation/has-in-sibling-position.html** * **/css/selectors/invalidation/has-invalidation-after-removing-non-first-element.html** * **/css/selectors/invalidation/has-invalidation-for-wiping-an-element.html** * **/css/selectors/invalidation/has-sibling.html** * **/css/selectors/invalidation/has-with-not.html** * **/css/selectors/invalidation/has-with-pseudo-class.html** * **/css/selectors/invalidation/input-pseudo-classes-in-has.html** * **/css/selectors/invalidation/is-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/lang-pseudo-class-in-has.html** * **/css/selectors/invalidation/not-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/typed-child-indexed-pseudo-classes-in-has.html** * **/css/selectors/is-where-basic.html** * **/css/selectors/is-where-not.html** * **/html/rendering/non-replaced-elements/tables/form-in-tables.html** * /html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update- * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-attribute-changes.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-normal-descendant-change.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-remove.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow-aspect-ratio.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow.html** * **/html/semantics/interactive-elements/the-dialog-element/inertness-with-modal-dialogs-and-iframes.html** * **/html/semantics/popovers/popover-stacking.html** * **/referrer-policy/generic/inheritance/popup-inheritance-form-submission.html** * **/resource-timing/resource-reload-TAO.html** * **/selection/bidi/modify.tentative.html** * **/selection/contenteditable/modify.tentative.html** * **/selection/textcontrols/selectionchange.html** * **/css/CSS2/normal-flow/block-in-inline-client-rects-001.html** * **/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html** * **/css/css-animations/computed-style-animation-parsing.html** * **/css/css-variables/variables-substitute-guaranteed-invalid.html** * **/css/cssom-view/elementsFromPoint-simple.html** * **/css/cssom/CSSStyleSheet-modify-after-removal.html** * **/css/cssom/getComputedStyle-display-none-001.html** * **/css/selectors/focus-visible-script-focus-001.html** * **/css/selectors/has-specificity.html** * **/css/selectors/invalidation/is.html** * **/css/selectors/invalidation/not-002.html** * **/dom/events/EventListener-handleEvent-cross-realm.html** * **/dom/traversal/TreeWalker-acceptNode-filter-cross-realm.html** * **/html/browsers/the-window-object/window-properties.https.html** * **/html/browsers/the-window-object/window-prototype-chain.html** * **/html/browsers/windows/nested-browsing-contexts/frameElement.sub.html** * **/html/dom/aria-element-reflection.html** * **/html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update-with-border-object-fit.html** * **/html/semantics/forms/form-submission-0/form-double-submit-multiple-targets.html** * **/html/semantics/forms/the-input-element/show-picker-cross-origin-iframe.html** * **/html/webappapis/scripting/events/compile-event-handler-lexical-scopes-form-owner.html** * **/quirks/unitless-length/excluded-properties-002.html** </details> <details><summary>22× tests with failures that looked interesting</summary> * 1× CRASH [expected ...] * **/css/css-fonts/crash-large-grapheme-cluster.html** crash is subject of test * 6× FAIL [expected PASS] /... (reftest) * **/css/css-flexbox/anonymous-flex-item-005.html** old pass was spurious * **/css/css-flexbox/anonymous-flex-item-006.html** old pass was spurious * **/css/css-text-decor/text-decoration-line-recalc.html** old pass was spurious; ‘text-decoration’ shorthand unimplemented * **/css/css-ui/appearance-auto-non-html-namespace-001.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-inherit-rtl.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-rtl.html** old pass was spurious * 13× TIMEOUT [expected ...] * **/css/css-fonts/font-size-monospace-adjust.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/css/cssom-view/background-change-during-smooth-scroll.html** timeout is subject of test * **/css/selectors/invalidation/has-complexity.html** timeout is subject of test * **/css/selectors/invalidation/media-loading-pseudo-classes-in-has.html** timeout is subject of test; :has() unimplemented * **/fetch/stale-while-revalidate/stale-image.html** timeout is subject of test * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigates-multiple-frames.html** timeout is subject of test * **/html/rendering/widgets/appearance/appearance-animation-001.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-animation-002.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-transition-001.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-002.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-003.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/resource-timing/opaque-origin.html** timeout is subject of test * **/selection/textcontrols/selectionchange-bubble.html** timeout is subject of test * **/webidl/ecmascript-binding/invalid-this-value-cross-realm.html** ‘HTMLDocument’ unimplemented </details> ---  - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [x] These changes fix #27949 (GitHub issue number if applicable)  - [x] There are tests for these changes (including but not limited to web-platform-tests/wpt#39211) OR - [ ] These changes do not require tests because ___

@pylbrecht

HTML #named-access-on-the-window-object This patch implements [named access on the window object](https://html.spec.whatwg.org/#named-access-on-the-window-object) based on @pylbrecht’s and @yvt’s previous work (see also #27952, #25562, #21869, #19904). That work makes 130 tests pass, and I’ve made some additional changes to make [the test for the feature itself](https://wpt.live/webidl/ecmascript-binding/window-named-properties-object.html) pass too, but I haven’t worked with mozjs before, so I have no idea if I’ve gone about my changes the Right Way. In particular, this patch: * [x] applies @pylbrecht’s patch (#27952) * [x] resolves conflicts related to #29079 and #28546 (5ae0ca4) * [x] applies @yvt’s patch to the segfault in getPrototypeIfOrdinary (1e24ffd) * [x] reverts the change introducing Untransplantable (76dc35a), since #28534 was abandoned in favour of #28536 * [x] triages the unexpected WPT results, updating expectations as needed (see below) * [x] fixes the failures in /webidl/ecmascript-binding/window-named-properties-object.html (3844f69) * [x] fixes the failures in the [[GetOwnProperty]] subtest (75c24e9) * [x] fixes the failures in the [[DefineOwnProperty]] subtest (e4e7a14) * [x] fixes the failures in the [[HasProperty]] subtest (75c24e9) * [x] fixes the failures in the [[Get]] subtest (4bafb27) * [x] fixes the failures in the [[Set]] (direct) subtest (e4e7a14) * [x] fixes the failures in the [[Delete]] subtest (4bafb27) * [x] fixes the failures in the [[OwnPropertyKeys]] subtest (afcd24a) * [x] resolves the todos and fixmes * [x] Document: handle exposed objects ×3 (ed3e37b) * [x] Window::NamedGetter: document.get_elements_with_id() (618ef57) * [x] get_own_property_descriptor: check for interactions with indexed access (b906fae) * [x] create trap: pass proper classp (618ef57) <details><summary>131× tests that now pass</summary> * **/webidl/ecmascript-binding/window-named-properties-object.html** *directly relevant to this patch* * **/FileAPI/Blob-methods-from-detached-frame.html** done #29450 #29451 * **/cors/script-304.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-in-inline-that-had-block.html** * **/css/CSS2/abspos/adjacent-to-relpos-inline-that-had-block.html** * **/css/CSS2/floats-clear/remove-block-before-self-collapsing-sibling-with-clearance.html** * **/css/CSS2/floats/computed-float-position-absolute.html** * **/css/CSS2/normal-flow/block-in-inline-hittest-float-001.html** * **/css/CSS2/normal-flow/block-in-inline-insert-018.html** * **/css/CSS2/normal-flow/margin-collapse-through-percentage-padding.html** * **/css/CSS2/positioning/abspos-change-in-inline-block.html** * **/css/CSS2/positioning/abspos-width-change-inline-container-001.html** * **/css/CSS2/positioning/detach-abspos-before-layout.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable-2.html** * **/css/CSS2/positioning/relpos-percentage-left-in-scrollable.html** * **/css/CSS2/stacking-context/composite-change-after-scroll-preserves-stacking-order.html** * **/css/CSS2/stacking-context/opacity-change-parent-stacking-context.html** * **/css/CSS2/stacking-context/opacity-change-twice-stacking-context.html** * **/css/CSS2/stacking-context/opacity-transition-change-parent-stacking-context.html** * **/css/css-animations/animation-base-response-002.html** * **/css/css-animations/style-animation-parsing.html** * **/css/css-backgrounds/background-clip-color-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-conic-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-linear-repaint.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-radial-repaint.html** * **/css/css-backgrounds/background-image-none-gradient-repaint.html** * **/css/css-backgrounds/border-radius-dynamic-from-no-radius.html** * **/css/css-backgrounds/child-move-reveals-parent-background.html** * **/css/css-color/filters-under-will-change-opacity.html** * **/css/css-flexbox/anonymous-flex-item-001.html** * **/css/css-flexbox/anonymous-flex-item-003.html** * **/css/css-flexbox/dynamic-bsize-change.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-016.html** * **/css/cssom/at-namespace.html** * **/css/cssom/computed-style-002.html** * **/css/cssom/getComputedStyle-display-none-002.html** * **/css/cssom/getComputedStyle-display-none-003.html** * **/css/cssom/preferred-stylesheet-reversed-order.html** * **/css/cssom-view/HTMLImageElement-x-and-y-ignore-transforms.html** * **/css/cssom-view/pt-to-px-width.html** * **/css/cssom-view/scroll-back-to-initial-position.html** * **/css/css-text-decor/text-decoration-color-recalc-002.html** * **/css/css-text-decor/text-decoration-line-grammar-error-color-dynamic-001.optional.html** * **/css/css-text-decor/text-decoration-line-spelling-error-color-dynamic-001.optional.html** * **/css/css-text/text-indent/percentage-value-intrinsic-size.html** * **/css/css-text/white-space/display-contents-remove-whitespace-change.html** * **/css/css-text/white-space/white-space-empty-text-sibling.html** * **/css/css-transforms/change-perspective-property.html** * **/css/css-transforms/change-scale-wide-range.html** * **/css/css-transforms/change-transform-origin-property.html** * **/css/css-transforms/dynamic-fixed-pos-cb-change.html** * **/css/css-transforms/individual-transform/change-rotate-property.html** * **/css/css-transforms/individual-transform/change-scale-property.html** * **/css/css-transforms/paint-order-with-transform-change.html** * **/css/css-transforms/size-change-under-backface-visibility-hidden.html** * **/css/css-transforms/subpixel-transform-changes-001.html** * **/css/css-transforms/subpixel-transform-changes-002.html** * **/css/css-transforms/subpixel-transform-changes-003.html** * **/css/css-transforms/subpixel-transform-changes-004.html** * **/css/css-transitions/transition-reparented.html** * **/css/css-ui/historical/moz-user-modify-01.html** * **/css/css-ui/historical/user-modify-01.html** * **/css/css-ui/historical/webkit-user-modify-01.html** * **/css/css-ui/resize-change-margin.html** * **/css/css-ui/text-overflow-change-color.html** * **/css/css-ui/text-overflow-ellipsis-width-001.html** * **/css/css-values/animations/line-height-lh-transition.html** * **/css/css-values/calc-nesting.html** * **/css/css-values/update-subpixel-rem-unit.html** * **/css/css-values/viewport-units-modify.html** * **/css/css-variables/css-variable-change-style-001.html** * **/css/css-variables/css-variable-change-style-002.html** * **/css/css-variables/variable-cycles.html** * **/css/selectors/attribute-selectors/style-attribute-selector.html** * **/css/selectors/i18n/lang-pseudo-class-disconnected.html** * **/css/selectors/invalidation/attribute.html** * **/css/selectors/invalidation/class-id-attr.html** * **/css/selectors/invalidation/defined.html** * **/css/selectors/invalidation/sheet-going-away-001.html** * **/css/selectors/invalidation/sibling.html** * **/css/selectors/missing-right-token.html** * **/css/selectors/not-complex.html** * **/css/selectors/not-specificity.html** * **/css/selectors/nth-of-type-namespace.html** * **/css/selectors/selectors-case-sensitive-001.html** * **/css/selectors/visited-inheritance.html** * **/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html** * **/dom/events/event-global-is-still-set-when-coercing-beforeunload-result.html** * **/dom/nodes/remove-and-adopt-thcrash.html** * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading.html** * **/html/browsers/history/the-history-interface/history_back_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_forward_cross_realm_method.html** * **/html/browsers/history/the-history-interface/history_go_cross_realm_method.html** * **/html/browsers/the-window-object/named-access-on-the-window-object/window-named-properties.html** * **/html/dom/elements/images/bypass-cache-revalidation.html** * **/html/rendering/non-replaced-elements/tables/table-ua-stylesheet.html** * **/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-alt-crash-001.html** * **/html/rendering/replaced-elements/embedded-content/change-src-while-not-displayed.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe-in-multicol.sub.html** * **/html/rendering/replaced-elements/embedded-content/cross-domain-iframe.sub.html** * **/html/rendering/replaced-elements/embedded-content/tall-cross-domain-iframe-in-scrolled.sub.html** * **/html/rendering/widgets/the-select-element/select-invalidation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_iframe_src_navigation.html** * **/html/semantics/document-metadata/the-base-element/base_target_does_not_affect_location_assignment.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-focus.html** * **/html/semantics/embedded-content/the-embed-element/embed-document-under-content-visibility-gbcr.html** * **/html/semantics/embedded-content/the-iframe-element/iframe-network-error.sub.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-anchor.html** * **/html/semantics/embedded-content/the-iframe-element/srcdoc-attribute-reset.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-change.html** * **/html/semantics/embedded-content/the-img-element/image-compositing-large-scale-change.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-clip-path.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-zero-intersection-area.html** * **/html/semantics/embedded-content/the-img-element/image-loading-subpixel-clip.html** * **/html/semantics/forms/form-submission-0/form-double-submit-to-different-origin-frame.html** * **/html/semantics/forms/form-submission-0/form-submit-iframe-then-location-navigate.html** * **/html/semantics/forms/form-submission-0/reparent-form-during-planned-navigation-task.html** * **/html/semantics/forms/the-button-element/button-willvalidate-readonly-attribute.html** * **/html/semantics/forms/the-input-element/datetime-local-trailing-zeros.html** * **/html/semantics/forms/the-input-element/radio-morphed.html** * **/html/semantics/forms/the-progress-element/progress.html** * **/html/semantics/forms/the-select-element/select-willvalidate-readonly-attribute.html** * **/html/semantics/selectors/pseudo-classes/placeholder-shown-type-change.html** * **/html/syntax/serializing-html-fragments/initial-linefeed-pre.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-errorevent.html** * **/html/webappapis/scripting/events/event-handler-processing-algorithm-error/frameset-element-synthetic-event.html** * **/quirks/unitless-length/excluded-properties-001.html** * **/quirks/unitless-length/excluded-properties-003.html** * **/selection/caret/empty-elements.html** * **/selection/contenteditable/cefalse-on-boundaries.html** * **/selection/textcontrols/onselectionchange-content-attribute.html** </details> <details><summary>94× tests that improve but still fail in a way that’s clearly the subject of the test</summary> * **/css/css-animations/animation-base-response-001.html** * **/css/css-backgrounds/background-image-gradient-currentcolor-visited.html** * **/css/css-backgrounds/inheritance.sub.html** * **/css/css-backgrounds/local-attachment-content-box-scroll.html** * **/css/css-color/canvas-change-opacity.html** * **/css/css-color/color-initial-canvastext.html** * **/css/css-flexbox/flex-aspect-ratio-img-column-010.html** * **/css/css-flexbox/flex-aspect-ratio-img-row-004.html** * **/css/css-fonts/parsing/font-face-src-format.html** getter works but insertRule does nothing * **/css/css-fonts/parsing/font-face-src-list.html** as above * **/css/css-fonts/parsing/font-face-src-local.html** as above, but also delayed length change? * **/css/css-fonts/parsing/font-face-src-tech.html** as above * **/css/css-text/white-space/trailing-space-before-br-001.html** * **/css/css-transforms/3d-rendering-context-behavior.html** failures are subject of test, but also blank page? * **/css/css-transforms/individual-transform/change-translate-property.html** * **/css/css-transforms/preserve-3d-flat-grouping-properties.html** * **/css/css-transforms/transforms-support-calc.html** * **/css/css-transitions/inherit-height-transition.html** * **/css/css-ui/inheritance.html** * **/css/css-ui/parsing/outline-width-computed.html** failures are subject of test; https://drafts.csswg.org/css-values-4/#snap-a-length-as-a-border-width * **/css/css-values/lh-unit-003.html** * **/css/css-values/viewport-units-compute.html** * **/css/css-values/viewport-units-keyframes.html** * **/css/css-values/viewport-units-media-queries.html** * **/css/css-values/viewport-units-writing-mode.html** * **/css/cssom-view/elementsFromPoint-table.html** * **/css/cssom-view/scroll-behavior-default-css.html** * **/css/cssom-view/scroll-behavior-element.html** * **/css/cssom-view/scroll-behavior-main-frame-root.html** * **/css/cssom-view/scroll-behavior-main-frame-window.html** * **/css/cssom-view/scroll-behavior-smooth-navigation.html** * **/css/cssom-view/scroll-behavior-subframe-root.html** * **/css/cssom/computed-style-003.html** * **/css/cssom/computed-style-004.html** * **/css/cssom/font-variant-shorthand-serialization.html** * **/css/selectors/dir-selector-auto.html** * **/css/selectors/has-argument-with-explicit-scope.html** * **/css/selectors/has-basic.html** * **/css/selectors/has-relative-argument.html** * **/css/selectors/invalidation/attribute-or-elemental-selectors-in-has.html** * **/css/selectors/invalidation/child-indexed-pseudo-classes-in-has.html** * **/css/selectors/invalidation/dir-pseudo-class-in-has.html** * **/css/selectors/invalidation/empty-pseudo-in-has.html** * **/css/selectors/invalidation/has-in-adjacent-position.html** * **/css/selectors/invalidation/has-in-ancestor-position.html** * **/css/selectors/invalidation/has-in-parent-position.html** * **/css/selectors/invalidation/has-in-sibling-position.html** * **/css/selectors/invalidation/has-invalidation-after-removing-non-first-element.html** * **/css/selectors/invalidation/has-invalidation-for-wiping-an-element.html** * **/css/selectors/invalidation/has-sibling.html** * **/css/selectors/invalidation/has-with-not.html** * **/css/selectors/invalidation/has-with-pseudo-class.html** * **/css/selectors/invalidation/input-pseudo-classes-in-has.html** * **/css/selectors/invalidation/is-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/lang-pseudo-class-in-has.html** * **/css/selectors/invalidation/not-pseudo-containing-complex-in-has.html** * **/css/selectors/invalidation/typed-child-indexed-pseudo-classes-in-has.html** * **/css/selectors/is-where-basic.html** * **/css/selectors/is-where-not.html** * **/html/rendering/non-replaced-elements/tables/form-in-tables.html** * /html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update- * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-attribute-changes.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-normal-descendant-change.html** * **/html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-remove.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow-aspect-ratio.html** * **/html/semantics/embedded-content/the-img-element/image-loading-lazy-slow.html** * **/html/semantics/interactive-elements/the-dialog-element/inertness-with-modal-dialogs-and-iframes.html** * **/html/semantics/popovers/popover-stacking.html** * **/referrer-policy/generic/inheritance/popup-inheritance-form-submission.html** * **/resource-timing/resource-reload-TAO.html** * **/selection/bidi/modify.tentative.html** * **/selection/contenteditable/modify.tentative.html** * **/selection/textcontrols/selectionchange.html** * **/css/CSS2/normal-flow/block-in-inline-client-rects-001.html** * **/css/CSS2/positioning/relpos-percentage-top-in-scrollable.html** * **/css/css-animations/computed-style-animation-parsing.html** * **/css/css-variables/variables-substitute-guaranteed-invalid.html** * **/css/cssom-view/elementsFromPoint-simple.html** * **/css/cssom/CSSStyleSheet-modify-after-removal.html** * **/css/cssom/getComputedStyle-display-none-001.html** * **/css/selectors/focus-visible-script-focus-001.html** * **/css/selectors/has-specificity.html** * **/css/selectors/invalidation/is.html** * **/css/selectors/invalidation/not-002.html** * **/dom/events/EventListener-handleEvent-cross-realm.html** * **/dom/traversal/TreeWalker-acceptNode-filter-cross-realm.html** * **/html/browsers/the-window-object/window-properties.https.html** * **/html/browsers/the-window-object/window-prototype-chain.html** * **/html/browsers/windows/nested-browsing-contexts/frameElement.sub.html** * **/html/dom/aria-element-reflection.html** * **/html/rendering/replaced-elements/embedded-content-rendering-rules/canvas-update-with-border-object-fit.html** * **/html/semantics/forms/form-submission-0/form-double-submit-multiple-targets.html** * **/html/semantics/forms/the-input-element/show-picker-cross-origin-iframe.html** * **/html/webappapis/scripting/events/compile-event-handler-lexical-scopes-form-owner.html** * **/quirks/unitless-length/excluded-properties-002.html** </details> <details><summary>22× tests with failures that looked interesting</summary> * 1× CRASH [expected ...] * **/css/css-fonts/crash-large-grapheme-cluster.html** crash is subject of test * 6× FAIL [expected PASS] /... (reftest) * **/css/css-flexbox/anonymous-flex-item-005.html** old pass was spurious * **/css/css-flexbox/anonymous-flex-item-006.html** old pass was spurious * **/css/css-text-decor/text-decoration-line-recalc.html** old pass was spurious; ‘text-decoration’ shorthand unimplemented * **/css/css-ui/appearance-auto-non-html-namespace-001.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-inherit-rtl.html** old pass was spurious * **/html/canvas/element/drawing-text-to-the-canvas/direction-rtl.html** old pass was spurious * 13× TIMEOUT [expected ...] * **/css/css-fonts/font-size-monospace-adjust.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/css/cssom-view/background-change-during-smooth-scroll.html** timeout is subject of test * **/css/selectors/invalidation/has-complexity.html** timeout is subject of test * **/css/selectors/invalidation/media-loading-pseudo-classes-in-has.html** timeout is subject of test; :has() unimplemented * **/fetch/stale-while-revalidate/stale-image.html** timeout is subject of test * **/html/browsers/browsing-the-web/history-traversal/history-traversal-navigates-multiple-frames.html** timeout is subject of test * **/html/rendering/widgets/appearance/appearance-animation-001.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-animation-002.html** timeout is subject of test; reftest runner bug with 1e10s animation? * **/html/rendering/widgets/appearance/appearance-transition-001.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-002.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/html/rendering/widgets/appearance/appearance-transition-003.html** timeout is subject of test; reftest runner bug with 1e10s transition? * **/resource-timing/opaque-origin.html** timeout is subject of test * **/selection/textcontrols/selectionchange-bubble.html** timeout is subject of test * **/webidl/ecmascript-binding/invalid-this-value-cross-realm.html** ‘HTMLDocument’ unimplemented </details> ---  - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [x] These changes fix #27949 (GitHub issue number if applicable)  - [x] There are tests for these changes (including but not limited to web-platform-tests/wpt#39211) OR - [ ] These changes do not require tests because ___

jdm added the A-content/dom Interacting with the DOM from web content label Dec 14, 2020

jdm added this to To do in web-platform-test failures via automation Dec 14, 2020

jdm added the C-assigned There is someone working on resolving the issue label Dec 14, 2020

jdm mentioned this issue Dec 14, 2020

Recaptcha fails with script::dom::bindings::error, breaks many login pages #27820

Open

pylbrecht mentioned this issue Dec 15, 2020

Implement named access on the window object #27952

Closed

4 tasks

jdm removed the C-assigned There is someone working on resolving the issue label May 23, 2021

delan self-assigned this Feb 20, 2023

delan mentioned this issue Feb 21, 2023

HTML #named-access-on-the-window-object #29396

Merged

23 tasks

delan mentioned this issue Feb 27, 2023

Implement named access on Window (named properties object, global scope polluter) #8984

Closed

bors-servo closed this as completed in e0f87cb Mar 28, 2023

web-platform-test failures automation moved this from To do to Done Mar 28, 2023

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Named window getter is missing #27949

Named window getter is missing #27949

jdm commented Dec 14, 2020

jdm commented Dec 14, 2020

pylbrecht commented Dec 14, 2020

pylbrecht commented Dec 14, 2020

pshaughn commented Dec 14, 2020

pylbrecht commented May 23, 2021

jdm commented May 23, 2021

pylbrecht commented May 23, 2021

Named window getter is missing #27949

Named window getter is missing #27949

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jdm commented Dec 14, 2020

jdm commented Dec 14, 2020

pylbrecht commented Dec 14, 2020

pylbrecht commented Dec 14, 2020

pshaughn commented Dec 14, 2020

pylbrecht commented May 23, 2021

jdm commented May 23, 2021

pylbrecht commented May 23, 2021