Accessibility

New Features

• Added support for ariaBrailleLabel and ariaBrailleRoleDescription element reflection properties. (275591@main) (123926949)

Resolved Issues

• Fixed a bug preventing VoiceOver word echoing in some text fields. (275694@main) (122451549) (FB13592798)
• Fixed time input accessibility by adding labels to subfields. (275301@main) (122590568)
• Fixed datetime values being exposed to assistive technologies in the wrong timezone. (275265@main) (123522296)
• Fixed time control accessibility by adding a label to the meridiem component. (276195@main) (123781149)
• Fixed wrong datetime value being exposed to assistive technologies for datetime-local inputs. (275548@main) (123803281)
• Fixed the computed role for these elements: dd, details, dt, em, hgroup, option, s, and strong. (276240@main) (124641956)

Authentication

Resolved Issues

• Fixed excludeCredentials property being ignored during a passkey registration request. (276006@main) (124405037)

CSS

Resolved Issues

• Fixed getComputedStyle() to work with functional pseudo-elements like ::highlight(). (274846@main) (117864743)
• Fixed changing color scheme to update gradients with system colors or light-dark(). (275645@main) (121285450)
• Fixed :empty selector to work with animations. (275832@main) (122838142)
• Fixed starting style to inherit from its parent’s after-change style. (275061@main) (123302667)
• Fixed CSS container style queries to allow !important. (275104@main) (123374708)
• Fixed preserving whitespace when serializing custom properties. (275236@main) (123491915)
• Fixed updating style correctly for non-inherited custom property mutations. (275445@main) (123645196)
• Fixed element removed by parent to end up losing the last remembered size. (275606@main) (123975513)
• Fixed resolving container units in style queries. (275689@main) (124058441)

Forms

Resolved Issues

• Fixed native text fields becoming invisible in dark mode. (275363@main) (123658326)
• Fixed <select multiple> scrollbars to match the used color scheme. (275505@main) (123807167)
• Fixed fallback native <select> rendering in dark mode. (275532@main) (123845293)

JavaScript

Resolved Issues

• Fixed String.prototype.replace to not take the fast path if the pattern is RegExp Object and the lastIndex is not numeric. (275255@main) (101122567)
• Fixed Symbol.species getters to not share a single JS Function. (275064@main) (120416817)
• Fixed try/catch to not intercept errors originated in [[Construct]] of derived class. (275353@main) (121959506)
• Fixed TypedArray sorting methods to have a special-case for camparator returning false. (276130@main) (122093956)
• Fixed emitReturn() to load this value from arrow function lexical environment prior to the TDZ check. (275425@main) (122430056)
• Fixed NFKC normalization to work with Latin-1 characters. (275062@main) (123328161)
• Fixed parsing of private names with Unicode start characters. (275152@main) (123425805)
• Fixed instanceof to not get RHS prototype when LHS is primitive. (275318@main) (123629166)
• Fixed bracket update expression to resolve property key at most once. (275531@main) (123872374)
• Fixed bracket compound assignement to resolve the property key at most once. (276014@main) (124420301)

Lockdown Mode

Resolved Issues

• Fixed: Updated the trusted list of fonts to address missing glyphs on some sites. (275705@main) (123658932)

Media

New Features

• Added support for WebCodecs AV1 when an AV1 hardware decoder is available. (275174@main) (123433815)

Resolved Issues

• Fixed audio distortion over internal speakers when streaming content in web browsers. (275262@main) (122590884)
• Fixed playback for MSE videos on some sites. (275443@main) (123528095)
• Fixed firing loadeddata events for <audio> and <video> on page load. (275997@main) (124079735) (FB13675360)

SVG

Resolved Issues

• Fixed returning the initial value for the SVG gradient stop-color if it is not rendered in the page. (274997@main) (123262508)
• Fixed the SVG marker segment calculations if the marker path consists of sub-paths. (275167@main) (123434203)

Web API

Resolved Issues

• Fixed cssTextsetter to change the style attribute when the serialization differs. (276176@main) (29861252) (FB5535475)
• Fixed mousemove events in an iframe when the mouse is clicked from outside the iframe and then moves into it while the button is held down. (275157@main) (120540148) (FB13517196)
• Fixed getGamepads() to no longer trigger an insecure contexts warning. (274962@main) (123039555)

Deprecations

• Removed HashChangeEvent‘s non-standard initHashChangeEvent() method. (276232@main) (124736521)

Web Inspector

Resolved Issues

• Fixed expanded sections of Storage to not collapse. (275783@main) (107687975)
• Fixed CSS font property values marked !important not getting overridden when using the interactive editing controls. (275389@main) (112080113)
• Fixed runtimes to be aligned in the Audit tab. (275298@main) (121810292)
• Fixed info and debug buttons not appearing in the Console Tab until new console messages are displayed. (275914@main) (122923625)
• Fixed remembering the message type selection in the Console tab. (275143@main) (122924275)
• Fixed autocomplete for the text-indent property suggesting prefixed properties instead of each-line or hanging. (274979@main) (123240715)
• Fixed background autocompletion suggestion to include repeating-conic-gradient. (275160@main) (123428709)

WebRTC

Resolved Issues

• Fixed black stripes with screen sharing windows. (275736@main, 275742@main, 275789@main) (123492622)
• Fixed black stripes with getDisplayMedia captured windows when the window is resized. (275794@main) (124131045)