Updates for Safari 27 beta

[Elchi3]

The https://collector.openwebdocs.org project (v10.17.14) found new features shipping in Safari 27 beta (22625.1.18.11.5) on macOS 27.0 Beta (26A5353q) which was released today. Currently, the collector covers about 90% of BCD, so the following list might not be exhaustive. Also, if a feature is in Safari TP only, it is not considered here.

This PR contains 76 feature updates or additions. See also the release notes.

• api.AnimationEvent.animation
• api.CookieStore.set.maxAge_option
• api.CredentialsContainer.get.identity_option
• api.CredentialsContainer.get.otp_option
• api.Document.ariaNotify
• api.Element.ariaNotify
• api.GPUDevice.uncapturederror_event
• api.GPUSupportedLimits.maxStorageBuffersInFragmentStage
• api.GPUSupportedLimits.maxStorageBuffersInVertexStage
• api.GPUSupportedLimits.maxStorageTexturesInFragmentStage
• api.GPUSupportedLimits.maxStorageTexturesInVertexStage
• api.HTMLAnchorElement.attributionSourceId
• api.HTMLModelElement
• api.HTMLModelElement.boundingBoxCenter
• api.HTMLModelElement.boundingBoxExtents
• api.HTMLModelElement.entityTransform
• api.HTMLModelElement.environmentMap
• api.HTMLModelElement.environmentMapReady
• api.HTMLModelElement.ready
• api.HTMLModelElement.stageMode
• api.HTMLSelectedContentElement
• api.HTMLTemplateElement.shadowRootSlotAssignment
• api.InstallEvent
• api.InstallEvent.InstallEvent
• api.InstallEvent.addRoutes
• api.PerformanceResourceTiming.workerCacheLookupStart
• api.PerformanceResourceTiming.workerFinalRouterSource
• api.PerformanceResourceTiming.workerMatchedRouterSource
• api.PerformanceResourceTiming.workerRouterEvaluationStart
• api.RTCRtpReceiver.jitterBufferTarget
• api.ReadableStream.from_static
• api.ReadableStream.values
• api.ReadableStream.@@asynciterator
• api.TransitionEvent.animation
• css.properties.appearance.base-select
• css.properties.appearance.base-select.single_dropdown
• css.properties.block-size.stretch
• css.properties.contain.style
• css.properties.flex-basis.stretch
• css.properties.flex.stretch
• css.properties.height.stretch
• css.properties.inline-size.stretch
• css.properties.max-block-size.stretch
• css.properties.max-height.stretch
• css.properties.max-inline-size.stretch
• css.properties.max-width.stretch
• css.properties.min-block-size.stretch
• css.properties.min-height.stretch
• css.properties.min-inline-size.stretch
• css.properties.min-width.stretch
• css.properties.overflow-anchor
• css.properties.overflow-anchor.auto
• css.properties.overflow-anchor.none
• css.properties.position-anchor.none
• css.properties.position-anchor.normal
• css.properties.position-visibility.anchor-valid
• css.properties.position-visibility.anchor-visible
• css.properties.text-autospace.insert
• css.properties.text-transform.dutch_ij_digraph
• css.properties.width.stretch
• css.selectors.checkmark
• css.selectors.first-letter.dutch_ij_digraph
• css.selectors.heading
• css.selectors.picker-icon
• css.selectors.picker
• css.types.global_keywords.revert-rule
• html.elements.model
• html.elements.model.autoplay
• html.elements.model.height
• html.elements.model.loop
• html.elements.model.src
• html.elements.model.stagemode
• html.elements.model.width
• html.elements.selectedcontent
• webassembly.jspi

[github-actions]

This pull request has merge conflicts that must be resolved before it can be merged.

[github-actions]

Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs).

[pepelsbey]

Looks good, thanks! A few notes below and also some comparisons with the release notes:

Features from release notes not in this PR:

• <selectedcontent> element (customizable select)
• :heading pseudo-class
• revert-rule keyword (global + per-property)
• Dutch IJ digraph behavior in text-transform: capitalize and ::first-letter
• contain: style applying to CSS quotes
• Transform-aware anchor positioning
• sizes="auto" on <img>
• TextTrackCue.endTime = Infinity
• WGSL clip_distances built-in (WebGPU)
• srgb-linear predefined color space (CSS color + Canvas/WebGL)
• display-p3-linear predefined color space (CSS color + Canvas/WebGL)
• RTCRtpCodec dictionary and related constructs
• Video source width / height in RTC stats
• Multi-character operators in MathML (and updated operator dictionary)
• tabindex, focus(), blur(), autofocus on MathML elements
• <img controls> for spatial / panorama photos (visionOS)
• dynamic-range-limit on <model>
• Immersive API on <model> (visionOS)
• runtime.getDocumentId() (WebExtensions)
• Secure cookies on loopback hosts
• CookieStore.set({ maxAge })
• Dedicated workers created inside shared workers
• lang and xml:lang attributes on SVG
• Transferring ReadableStream / WritableStream / TransformStream via `postMessage()

Features from this PR that are not in release notes:

• api.CredentialsContainer.get.identity_option
• api.CredentialsContainer.get.otp_option
• api.Document.ariaNotify
• api.Element.ariaNotify
• api.HTMLAnchorElement.attributionSourceId (removal)
• api.WorkerNavigator.globalPrivacyControl
• http.headers.Sec-GPC
• css.selectors.picker (notes mention ::picker-icon and ::checkmark, but not bare ::picker)

[Elchi3]

Features from this PR that are not in release notes:

Thanks for listing these, very helpful. I have some hints that the collector is correct but it would be good to hear from @jdatapple on the following.

• api.CredentialsContainer.get.identity_option
• api.CredentialsContainer.get.otp_option

https://bugs.webkit.org/show_bug.cgi?id=310788 is the bug that fixed this, I believe.

• api.Document.ariaNotify
• api.Element.ariaNotify

This might be enabled according to WebKit/WebKit#55282. Would be good to get it confirmed.

• api.HTMLAnchorElement.attributionSourceId (removal)

Hm, for this one I couldn't find anything. Not sure what is going on. I can remove this if we don't get any other information.

• api.WorkerNavigator.globalPrivacyControl
• http.headers.Sec-GPC

It seems to have been implemented in WebKit/WebKit#64077. Maybe it is not going to get enabled by default.

• css.selectors.picker (notes mention ::picker-icon and ::checkmark, but not bare ::picker)

I updated this PR in 616f6c3 to remove this change.

[Elchi3]

Features from release notes not in this PR:

Thanks for compiling this list! BCD doesn't have entries for all of these but for those I could find, I updated this PR. See 5ee0af9

[jdatapple]

api.CredentialsContainer.get.identity_option
api.CredentialsContainer.get.otp_option

These are represented in release notes, albeit it is not a clear connection.

api.Document.ariaNotify
api.Element.ariaNotify

It does appear the associated change is in the release, but did not get included in release notes.

api.HTMLAnchorElement.attributionSourceId

I have not yet been able to confirm this.

api.WorkerNavigator.globalPrivacyControl
http.headers.Sec-GPC

The feature flag for these is off-by-default.

css.selectors.picker

Support for ::picker() is enabled as part of this release note.

Thanks for putting this altogether @Elchi3!

[Elchi3]

Thanks Jon! I removed the GPC changes and re-added ::picker.

api.Document.ariaNotify
api.Element.ariaNotify

It does appear the associated change is in the release, but did not get included in release notes.

api.HTMLAnchorElement.attributionSourceId

I have not yet been able to confirm this.

I left these in for now, awaiting confirmation on their status. We could also decide to take them out in order to get this PR merged and revisit these at a later point.

[Elchi3]

Removed the unconfirmed changes so this PR can land.