Summary of BCD changes from through π
Browser Support Changes: +23, -0
Support increases (23)
API
-
api β DeviceMotionEvent
Added to Safari β 3 of 3 engines -
api β DeviceMotionEvent β acceleration
Added to Safari β 3 of 3 engines -
api β DeviceMotionEvent β accelerationIncludingGravity
Added to Safari β 3 of 3 engines -
api β DeviceMotionEvent β interval
Added to Safari β 3 of 3 engines -
api β DeviceMotionEvent β rotationRate
Added to Safari β 3 of 3 engines -
api β DeviceOrientationEvent
Added to Safari β 3 of 3 engines -
api β DeviceOrientationEvent β absolute
Added to Safari β 3 of 3 engines -
api β DeviceOrientationEvent β alpha
Added to Safari β 3 of 3 engines -
api β DeviceOrientationEvent β beta
Added to Safari β 3 of 3 engines -
api β DeviceOrientationEvent β gamma
Added to Safari β 3 of 3 engines -
api β HTMLElement β togglePopover β returns_boolean
Added to Safari β 2 of 3 engines -
api β Response β json_static
Added to Safari β 3 of 3 engines -
api β VideoColorSpace β VideoColorSpace
Added to Safari β 2 of 3 engines -
api β Window β beforeunload_event β preventdefault_activation
Added to Chrome β 3 of 3 engines -
api β PublicKeyCredential β parseCreationOptionsFromJSON_static
Added to Firefox β 1 of 3 engines -
api β PublicKeyCredential β parseRequestOptionsFromJSON_static
Added to Firefox β 1 of 3 engines -
api β PublicKeyCredential β toJSON
Added to Firefox β 1 of 3 engines -
api β Selection β direction
Added to Safari β 1 of 3 engines -
api β Selection β getComposedRanges
Added to Safari β 1 of 3 engines -
api β SubtleCrypto β deriveKey β derivedKeyAlgorithm_option_hkdf
Added to Firefox β 2 of 3 engines
CSS
-
css β properties β list-style-type β ethiopic-halehame
Added to Safari β 3 of 3 engines -
css β properties β list-style-type β ethiopic-halehame-am
Added to Safari β 3 of 3 engines
HTML
-
html β elements β details β name
Added to Chrome β 1 of 3 engines
BCD Metadata Changes: 292
Show all 292 changes
Note: The following represent changes to BCD metadata keys in the reported time period. Keys are not implementations, and they don't represent commitments toward implementation, etc. A new key occuring is perhaps a signal that some implementer was serious enough to add the key. Many of the features that are 'removed' are usually just 'moved' or 'renamed', but we don't have great ways to highlight that.
Backfilled entries (149)
The entries in this section saw support information change since the report on Friday, 13 October 2023, but all the supported browser versions given were more than a couple of months old. Typically, these are cases of support information being updated long after the support actually landed in a browser, but nobody ever updated the BCD entry.
API
-
api β HTMLInputElement β showPicker β color_input
Backfilled from β 3 of 3 engines -
api β HTMLInputElement β showPicker β file_input
Backfilled from β 3 of 3 engines -
api β SVGImageElement β crossOrigin
Backfilled from β 2 of 3 engines -
api β TextMetrics β alphabeticBaseline
Backfilled from β 3 of 3 engines -
api β TextMetrics β hangingBaseline
Backfilled from β 3 of 3 engines -
api β TextMetrics β ideographicBaseline
Backfilled from β 3 of 3 engines -
api β createImageBitmap β options_colorSpaceConversion_parameter
Backfilled from β 3 of 3 engines -
api β createImageBitmap β options_imageOrientation_parameter
Backfilled from β 3 of 3 engines -
api β createImageBitmap β options_premultiplyAlpha_parameter
Backfilled from β 3 of 3 engines -
api β createImageBitmap β options_resizeHeight_parameter
Backfilled from β 3 of 3 engines -
api β createImageBitmap β options_resizeQuality_parameter
Backfilled from β 2 of 3 engines -
api β createImageBitmap β options_resizeWidth_parameter
Backfilled from β 3 of 3 engines -
api β AudioSession
Backfilled from β 1 of 3 engines -
api β AudioSession β type
Backfilled from β 1 of 3 engines -
api β CSSScopeRule
Backfilled from β 1 of 3 engines -
api β CSSScopeRule β end
Backfilled from β 1 of 3 engines -
api β CSSScopeRule β start
Backfilled from β 1 of 3 engines -
api β Document β hasRedemptionRecord
Backfilled from β 1 of 3 engines -
api β Element β ariaActiveDescendantElement
Backfilled from β 1 of 3 engines -
api β Element β ariaControlsElements
Backfilled from β 1 of 3 engines -
api β Element β ariaDescribedByElements
Backfilled from β 1 of 3 engines -
api β Element β ariaDetailsElements
Backfilled from β 1 of 3 engines -
api β Element β ariaErrorMessageElements
Backfilled from β 1 of 3 engines -
api β Element β ariaFlowToElements
Backfilled from β 1 of 3 engines -
api β Element β ariaLabelledByElements
Backfilled from β 1 of 3 engines -
api β Element β ariaOwnsElements
Backfilled from β 1 of 3 engines -
api β ElementInternals β ariaActiveDescendantElement
Backfilled from β 1 of 3 engines -
api β ElementInternals β ariaControlsElements
Backfilled from β 1 of 3 engines -
api β ElementInternals β ariaDescribedByElements
Backfilled from β 1 of 3 engines -
api β ElementInternals β ariaDetailsElements
Backfilled from β 1 of 3 engines -
api β ElementInternals β ariaErrorMessageElements
Backfilled from β 1 of 3 engines -
api β ElementInternals β ariaFlowToElements
Backfilled from β 1 of 3 engines -
api β ElementInternals β ariaLabelledByElements
Backfilled from β 1 of 3 engines -
api β ElementInternals β ariaOwnsElements
Backfilled from β 1 of 3 engines -
api β HTMLAnchorElement β attributionSrc
Backfilled from β 1 of 3 engines -
api β HTMLAnchorElement β referrerPolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
api β HTMLAnchorElement β referrerPolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
api β HTMLAnchorElement β referrerPolicy β unsafe-url
Backfilled from β 2 of 3 engines -
api β HTMLAreaElement β referrerPolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
api β HTMLAreaElement β referrerPolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
api β HTMLAreaElement β referrerPolicy β unsafe-url
Backfilled from β 2 of 3 engines -
api β HTMLIFrameElement β privateToken
Backfilled from β 1 of 3 engines -
api β HTMLIFrameElement β referrerPolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
api β HTMLIFrameElement β referrerPolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
api β HTMLIFrameElement β referrerPolicy β unsafe-url
Backfilled from β 2 of 3 engines -
api β HTMLImageElement β attributionSrc
Backfilled from β 1 of 3 engines -
api β HTMLImageElement β referrerPolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
api β HTMLImageElement β referrerPolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
api β HTMLImageElement β referrerPolicy β unsafe-url
Backfilled from β 2 of 3 engines -
api β HTMLLinkElement β referrerPolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
api β HTMLLinkElement β referrerPolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
api β HTMLLinkElement β referrerPolicy β unsafe-url
Backfilled from β 2 of 3 engines -
api β HTMLScriptElement β attributionSrc
Backfilled from β 1 of 3 engines -
api β HTMLScriptElement β referrerPolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
api β HTMLScriptElement β referrerPolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
api β HTMLScriptElement β referrerPolicy β unsafe-url
Backfilled from β 2 of 3 engines -
api β NavigateEvent β hasUAVisualTransition
Backfilled from β 1 of 3 engines -
api β Navigator β audioSession
Backfilled from β 1 of 3 engines -
api β PerformanceResourceTiming β deliveryType β navigational-prefetch
Backfilled from β 1 of 3 engines -
api β PopStateEvent β hasUAVisualTransition
Backfilled from β 1 of 3 engines -
api β Request β Request β init_attributionReporting_parameter
Backfilled from β 1 of 3 engines -
api β SVGAElement β referrerPolicy β no-referrer-when-downgrade
Backfilled from β 1 of 3 engines -
api β SVGAElement β referrerPolicy β origin-when-cross-origin
Backfilled from β 1 of 3 engines -
api β SVGAElement β referrerPolicy β unsafe-url
Backfilled from β 1 of 3 engines -
api β SharedStorage
Backfilled from β 1 of 3 engines -
api β SharedStorage β append
Backfilled from β 1 of 3 engines -
api β SharedStorage β clear
Backfilled from β 1 of 3 engines -
api β SharedStorage β delete
Backfilled from β 1 of 3 engines -
api β SharedStorage β set
Backfilled from β 1 of 3 engines -
api β SharedStorageOperation
Backfilled from β 1 of 3 engines -
api β SharedStorageRunOperation
Backfilled from β 1 of 3 engines -
api β SharedStorageRunOperation β run
Backfilled from β 1 of 3 engines -
api β SharedStorageSelectURLOperation
Backfilled from β 1 of 3 engines -
api β SharedStorageSelectURLOperation β run
Backfilled from β 1 of 3 engines -
api β SharedStorageWorklet
Backfilled from β 1 of 3 engines -
api β SharedStorageWorkletGlobalScope
Backfilled from β 1 of 3 engines -
api β SharedStorageWorkletGlobalScope β register
Backfilled from β 1 of 3 engines -
api β SharedStorageWorkletGlobalScope β sharedStorage
Backfilled from β 1 of 3 engines -
api β SubtleCrypto β deriveKey β derivedKeyAlgorithm_option_aes
Backfilled from β 2 of 3 engines -
api β SubtleCrypto β deriveKey β derivedKeyAlgorithm_option_hmac
Backfilled from β 2 of 3 engines -
api β SubtleCrypto β deriveKey β derivedKeyAlgorithm_option_pbkdf2
Backfilled from β 1 of 3 engines -
api β Window β open β features_parameter_attributionsrc
Backfilled from β 1 of 3 engines -
api β Window β sharedStorage
Backfilled from β 1 of 3 engines -
api β WindowSharedStorage
Backfilled from β 1 of 3 engines -
api β WindowSharedStorage β run
Backfilled from β 1 of 3 engines -
api β WindowSharedStorage β selectURL
Backfilled from β 1 of 3 engines -
api β WindowSharedStorage β worklet
Backfilled from β 1 of 3 engines -
api β WorkletSharedStorage β @@asyncIterator
Backfilled from β 1 of 3 engines -
api β WorkletSharedStorage
Backfilled from β 1 of 3 engines -
api β WorkletSharedStorage β context
Backfilled from β 1 of 3 engines -
api β WorkletSharedStorage β entries
Backfilled from β 1 of 3 engines -
api β WorkletSharedStorage β get
Backfilled from β 1 of 3 engines -
api β WorkletSharedStorage β keys
Backfilled from β 1 of 3 engines -
api β WorkletSharedStorage β length
Backfilled from β 1 of 3 engines -
api β WorkletSharedStorage β remainingBudget
Backfilled from β 1 of 3 engines -
api β XMLHttpRequest β setAttributionReporting
Backfilled from β 1 of 3 engines -
api β XMLHttpRequest β setPrivateToken
Backfilled from β 1 of 3 engines -
api β fetch β init_attributionReporting_parameter
Backfilled from β 1 of 3 engines
CSS
-
css β properties β font-variant-position
Backfilled from β 3 of 3 engines -
css β properties β text-emphasis-position β over
Backfilled from β 3 of 3 engines -
css β properties β text-emphasis-position β under
Backfilled from β 3 of 3 engines -
css β properties β transform-box β border-box
Backfilled from β 3 of 3 engines -
css β properties β transform-box β content-box
Backfilled from β 3 of 3 engines -
css β properties β transform-box β stroke-box
Backfilled from β 3 of 3 engines
HTML
-
html β elements β col β align
Backfilled from β 3 of 3 engines -
html β elements β col β valign
Backfilled from β 3 of 3 engines -
html β elements β rtc
Backfilled from β 3 of 3 engines -
html β elements β a β attributionsrc
Backfilled from β 1 of 3 engines -
html β elements β a β referrerpolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
html β elements β a β referrerpolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
html β elements β a β referrerpolicy β unsafe-url
Backfilled from β 2 of 3 engines -
html β elements β area β referrerpolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
html β elements β area β referrerpolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
html β elements β area β referrerpolicy β unsafe-url
Backfilled from β 2 of 3 engines -
html β elements β iframe β referrerpolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
html β elements β iframe β referrerpolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
html β elements β iframe β referrerpolicy β unsafe-url
Backfilled from β 2 of 3 engines -
html β elements β img β attributionsrc
Backfilled from β 1 of 3 engines -
html β elements β img β referrerpolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
html β elements β img β referrerpolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
html β elements β img β referrerpolicy β unsafe-url
Backfilled from β 2 of 3 engines -
html β elements β link β referrerpolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
html β elements β link β referrerpolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
html β elements β link β referrerpolicy β unsafe-url
Backfilled from β 2 of 3 engines -
html β elements β script β attributionsrc
Backfilled from β 1 of 3 engines -
html β elements β script β referrerpolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
html β elements β script β referrerpolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
html β elements β script β referrerpolicy β unsafe-url
Backfilled from β 2 of 3 engines -
html β elements β script β type β speculationrules β prefetch
Backfilled from β 1 of 3 engines -
html β elements β script β type β speculationrules β referrer_policy
Backfilled from β 1 of 3 engines -
html β elements β script β type β speculationrules β requires
Backfilled from β 1 of 3 engines -
html β elements β script β type β speculationrules β requires β anonymous-client-ip-when-cross-origin
Backfilled from β 1 of 3 engines
HTTP
-
http β headers β Sec-Purpose
Backfilled from β 2 of 3 engines -
http β headers β Attribution-Reporting-Eligible
Backfilled from β 1 of 3 engines -
http β headers β Attribution-Reporting-Register-Source
Backfilled from β 1 of 3 engines -
http β headers β Attribution-Reporting-Register-Trigger
Backfilled from β 1 of 3 engines -
http β headers β Attribution-Reporting-Support
Backfilled from β 1 of 3 engines -
http β headers β Content-Security-Policy β script-src β inline-speculation-rules
Backfilled from β 1 of 3 engines -
http β headers β Permissions-Policy β attribution-reporting
Backfilled from β 1 of 3 engines -
http β headers β Referrer-Policy β no-referrer-when-downgrade
Backfilled from β 3 of 3 engines -
http β headers β Referrer-Policy β origin-when-cross-origin
Backfilled from β 3 of 3 engines -
http β headers β Referrer-Policy β unsafe-url
Backfilled from β 3 of 3 engines -
http β headers β Sec-Purpose β prefetch
Backfilled from β 1 of 3 engines -
http β headers β Sec-Purpose β speculationrules
Backfilled from β 1 of 3 engines -
http β headers β Supports-Loading-Mode
Backfilled from β 1 of 3 engines
SVG
-
svg β elements β a β referrerpolicy β no-referrer-when-downgrade
Backfilled from β 2 of 3 engines -
svg β elements β a β referrerpolicy β origin-when-cross-origin
Backfilled from β 2 of 3 engines -
svg β elements β a β referrerpolicy β unsafe-url
Backfilled from β 2 of 3 engines
WEBASSEMBLY
New entries (140)
The entries in this section were not found in BCD on Friday, 13 October 2023, but are now present. These usually do not have any support information attached to them, and often have no corresponding MDN page. Sometimes, entries that appear here also appear in the next section (βRemoved BCD entriesβ) because of a Working Group deciding on a rename.
API
- api β AudioSession
- api β AudioSession β type
- api β CSSScopeRule
- api β CSSScopeRule β end
- api β CSSScopeRule β start
- api β Document β hasRedemptionRecord
- api β Element β ariaActiveDescendantElement
- api β Element β ariaControlsElements
- api β Element β ariaDescribedByElements
- api β Element β ariaDetailsElements
- api β Element β ariaErrorMessageElements
- api β Element β ariaFlowToElements
- api β Element β ariaLabelledByElements
- api β Element β ariaOwnsElements
- api β ElementInternals β ariaActiveDescendantElement
- api β ElementInternals β ariaControlsElements
- api β ElementInternals β ariaDescribedByElements
- api β ElementInternals β ariaDetailsElements
- api β ElementInternals β ariaErrorMessageElements
- api β ElementInternals β ariaFlowToElements
- api β ElementInternals β ariaLabelledByElements
- api β ElementInternals β ariaOwnsElements
- api β HTMLAnchorElement β attributionSrc
- api β HTMLAnchorElement β referrerPolicy β no-referrer-when-downgrade
- api β HTMLAnchorElement β referrerPolicy β origin-when-cross-origin
- api β HTMLAnchorElement β referrerPolicy β unsafe-url
- api β HTMLAreaElement β referrerPolicy β no-referrer-when-downgrade
- api β HTMLAreaElement β referrerPolicy β origin-when-cross-origin
- api β HTMLAreaElement β referrerPolicy β unsafe-url
- api β HTMLIFrameElement β privateToken
- api β HTMLIFrameElement β referrerPolicy β no-referrer-when-downgrade
- api β HTMLIFrameElement β referrerPolicy β origin-when-cross-origin
- api β HTMLIFrameElement β referrerPolicy β unsafe-url
- api β HTMLImageElement β attributionSrc
- api β HTMLImageElement β referrerPolicy β no-referrer-when-downgrade
- api β HTMLImageElement β referrerPolicy β origin-when-cross-origin
- api β HTMLImageElement β referrerPolicy β unsafe-url
- api β HTMLLinkElement β referrerPolicy β no-referrer-when-downgrade
- api β HTMLLinkElement β referrerPolicy β origin-when-cross-origin
- api β HTMLLinkElement β referrerPolicy β unsafe-url
- api β HTMLScriptElement β attributionSrc
- api β HTMLScriptElement β referrerPolicy β no-referrer-when-downgrade
- api β HTMLScriptElement β referrerPolicy β origin-when-cross-origin
- api β HTMLScriptElement β referrerPolicy β unsafe-url
- api β NavigateEvent β hasUAVisualTransition
- api β Navigator β audioSession
- api β PerformanceResourceTiming β deliveryType β navigational-prefetch
- api β PopStateEvent β hasUAVisualTransition
- api β PublicKeyCredential β parseCreationOptionsFromJSON_static
- api β PublicKeyCredential β parseRequestOptionsFromJSON_static
- api β PublicKeyCredential β toJSON
- api β Request β Request β init_attributionReporting_parameter
- api β SVGAElement β referrerPolicy β no-referrer-when-downgrade
- api β SVGAElement β referrerPolicy β origin-when-cross-origin
- api β SVGAElement β referrerPolicy β unsafe-url
- api β Selection β direction
- api β Selection β getComposedRanges
- api β SharedStorage
- api β SharedStorage β append
- api β SharedStorage β clear
- api β SharedStorage β delete
- api β SharedStorage β set
- api β SharedStorageOperation
- api β SharedStorageRunOperation
- api β SharedStorageRunOperation β run
- api β SharedStorageSelectURLOperation
- api β SharedStorageSelectURLOperation β run
- api β SharedStorageWorklet
- api β SharedStorageWorkletGlobalScope
- api β SharedStorageWorkletGlobalScope β register
- api β SharedStorageWorkletGlobalScope β sharedStorage
- api β SubtleCrypto β deriveKey β derivedKeyAlgorithm_option_aes
- api β SubtleCrypto β deriveKey β derivedKeyAlgorithm_option_hkdf
- api β SubtleCrypto β deriveKey β derivedKeyAlgorithm_option_hmac
- api β SubtleCrypto β deriveKey β derivedKeyAlgorithm_option_pbkdf2
- api β Window β open β features_parameter_attributionsrc
- api β Window β sharedStorage
- api β WindowSharedStorage
- api β WindowSharedStorage β run
- api β WindowSharedStorage β selectURL
- api β WindowSharedStorage β worklet
- api β WorkletSharedStorage β @@asyncIterator
- api β WorkletSharedStorage
- api β WorkletSharedStorage β context
- api β WorkletSharedStorage β entries
- api β WorkletSharedStorage β get
- api β WorkletSharedStorage β keys
- api β WorkletSharedStorage β length
- api β WorkletSharedStorage β remainingBudget
- api β XMLHttpRequest β setAttributionReporting
- api β XMLHttpRequest β setPrivateToken
- api β fetch β init_attributionReporting_parameter
CSS
- css β properties β text-emphasis-position β over
- css β properties β text-emphasis-position β under
- css β properties β transform-box β border-box
- css β properties β transform-box β content-box
- css β properties β transform-box β stroke-box
HTML
- html β elements β a β attributionsrc
- html β elements β a β referrerpolicy β no-referrer-when-downgrade
- html β elements β a β referrerpolicy β origin-when-cross-origin
- html β elements β a β referrerpolicy β unsafe-url
- html β elements β area β referrerpolicy β no-referrer-when-downgrade
- html β elements β area β referrerpolicy β origin-when-cross-origin
- html β elements β area β referrerpolicy β unsafe-url
- html β elements β details β name
- html β elements β iframe β referrerpolicy β no-referrer-when-downgrade
- html β elements β iframe β referrerpolicy β origin-when-cross-origin
- html β elements β iframe β referrerpolicy β unsafe-url
- html β elements β img β attributionsrc
- html β elements β img β referrerpolicy β no-referrer-when-downgrade
- html β elements β img β referrerpolicy β origin-when-cross-origin
- html β elements β img β referrerpolicy β unsafe-url
- html β elements β link β referrerpolicy β no-referrer-when-downgrade
- html β elements β link β referrerpolicy β origin-when-cross-origin
- html β elements β link β referrerpolicy β unsafe-url
- html β elements β script β attributionsrc
- html β elements β script β referrerpolicy β no-referrer-when-downgrade
- html β elements β script β referrerpolicy β origin-when-cross-origin
- html β elements β script β referrerpolicy β unsafe-url
- html β elements β script β type β speculationrules
- html β elements β script β type β speculationrules β prefetch
- html β elements β script β type β speculationrules β referrer_policy
- html β elements β script β type β speculationrules β requires
- html β elements β script β type β speculationrules β requires β anonymous-client-ip-when-cross-origin
HTTP
- http β headers β Attribution-Reporting-Eligible
- http β headers β Attribution-Reporting-Register-Source
- http β headers β Attribution-Reporting-Register-Trigger
- http β headers β Attribution-Reporting-Support
- http β headers β Content-Security-Policy β script-src β inline-speculation-rules
- http β headers β Permissions-Policy β attribution-reporting
- http β headers β Referrer-Policy β no-referrer-when-downgrade
- http β headers β Referrer-Policy β origin-when-cross-origin
- http β headers β Referrer-Policy β unsafe-url
- http β headers β Sec-Purpose β prefetch
- http β headers β Sec-Purpose β speculationrules
- http β headers β Supports-Loading-Mode
SVG
- svg β elements β a β referrerpolicy β no-referrer-when-downgrade
- svg β elements β a β referrerpolicy β origin-when-cross-origin
- svg β elements β a β referrerpolicy β unsafe-url
WEBASSEMBLY
- webassembly β relaxed-SIMD
Removed entries (3)
The entries in this section were found in BCD on Friday, 13 October 2023, but are no longer present. The reasons for this removal can be anything from an experimental proposal that was never supported to a property or value being renamed to something else.
HTML
- html β elements β area β hreflang
- html β elements β area β name
- html β elements β area β type