WebPreferences.yaml [plain text]
BlankAnchorTargetImpliesNoOpenerEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
humanReadableName: "Blank anchor target implies rel=noopener"
humanReadableDescription: "target=_blank on anchor elements implies rel=noopener"
category: experimental
DeviceOrientationEventEnabled:
type: bool
defaultValue: true
condition: ENABLE(DEVICE_ORIENTATION)
webcoreName: deviceOrientationEventEnabled
DeviceOrientationPermissionAPIEnabled:
type: bool
defaultValue: false
condition: ENABLE(DEVICE_ORIENTATION)
webcoreName: deviceOrientationPermissionAPIEnabled
DisallowSyncXHRDuringPageDismissalEnabled:
type: bool
defaultValue: defaultDisallowSyncXHRDuringPageDismissalEnabled()
humanReadableName: "Disallow sync XHR during page dismissal"
humanReadableDescription: "Disallow synchronous XMLHttpRequest during page dismissal"
category: experimental
JavaScriptEnabled:
type: bool
defaultValue: true
webcoreName: scriptEnabled
JavaScriptMarkupEnabled:
type: bool
defaultValue: true
webcoreName: scriptMarkupEnabled
LoadsImagesAutomatically:
type: bool
defaultValue: true
LoadsSiteIconsIgnoringImageLoadingPreference:
type: bool
defaultValue: false
webcoreName: loadsSiteIconsIgnoringImageLoadingSetting
PluginsEnabled:
type: bool
defaultValue: false
HTTPSUpgradeEnabled:
type: bool
defaultValue: false
humanReadableName: "Automatic HTTPS upgrade"
humanReadableDescription: "Automatic HTTPS upgrade for known supported sites"
category: experimental
ThirdPartyIframeRedirectBlockingEnabled:
type: bool
defaultValue: true
humanReadableName: "Block top-level redirects by third-party iframes"
humanReadableDescription: "Block top-level redirects by third-party iframes"
category: experimental
GoogleAntiFlickerOptimizationQuirkEnabled:
type: bool
defaultValue: true
humanReadableName: "Quirk to prevent delayed initial painting on sites using Google's Anti-Flicker optimization"
humanReadableDescription: "Quirk to prevent delayed initial painting on sites using Google's Anti-Flicker optimization"
category: experimental
JavaEnabled:
type: bool
defaultValue: false
JavaEnabledForLocalFiles:
type: bool
defaultValue: false
OfflineWebApplicationCacheEnabled:
type: bool
defaultValue: true
LocalStorageEnabled:
type: bool
defaultValue: true
DatabasesEnabled:
type: bool
defaultValue: true
webcoreBinding: custom
XSSAuditorEnabled:
type: bool
defaultValue: true
SafeBrowsingEnabled:
type: bool
defaultValue: true
webcoreBinding: none
TextAreasAreResizable:
type: bool
defaultValue: DEFAULT_TEXT_AREAS_ARE_RESIZABLE
JavaScriptCanOpenWindowsAutomatically:
type: bool
defaultValue: DEFAULT_JAVASCRIPT_CAN_OPEN_WINDOWS_AUTOMATICALLY
HyperlinkAuditingEnabled:
type: bool
defaultValue: true
NeedsSiteSpecificQuirks:
type: bool
defaultValue: true
AcceleratedCompositingEnabled:
type: bool
defaultValue: true
ForceCompositingMode:
type: bool
defaultValue: false
webcoreBinding: none
CanvasUsesAcceleratedDrawing:
type: bool
defaultValue: true
WebGLEnabled:
type: bool
defaultValue: true
Accelerated2dCanvasEnabled:
type: bool
defaultValue: false
ForceFTPDirectoryListings:
type: bool
defaultValue: false
TabsToLinks:
type: bool
defaultValue: DEFAULT_WEBKIT_TABSTOLINKS_ENABLED
webcoreBinding: none
DNSPrefetchingEnabled:
type: bool
defaultValue: false
DOMTimersThrottlingEnabled:
type: bool
defaultValue: true
WebArchiveDebugModeEnabled:
type: bool
defaultValue: false
condition: ENABLE(WEB_ARCHIVE)
LocalFileContentSniffingEnabled:
type: bool
defaultValue: false
UsesBackForwardCache:
type: bool
defaultValue: true
BackForwardCacheSupportsPlugins:
type: bool
defaultValue: true
AuthorAndUserStylesEnabled:
type: bool
defaultValue: true
PaginateDuringLayoutEnabled:
type: bool
defaultValue: false
DOMPasteAllowed:
type: bool
defaultValue: false
JavaScriptCanAccessClipboard:
type: bool
defaultValue: false
ShouldPrintBackgrounds:
type: bool
defaultValue: DEFAULT_SHOULD_PRINT_BACKGROUNDS
LinkPreconnect:
type: bool
defaultValue: DEFAULT_LINK_PRECONNECT_ENABLED
webcoreName: linkPreconnectEnabled
AsynchronousSpellCheckingEnabled:
type: bool
defaultValue: false
WebSecurityEnabled:
type: bool
defaultValue: true
AllowUniversalAccessFromFileURLs:
type: bool
defaultValue: false
AllowFileAccessFromFileURLs:
type: bool
defaultValue: false
AllowSettingAnyXHRHeaderFromFileURLs:
type: bool
defaultValue: false
AllowCrossOriginSubresourcesToAskForCredentials:
type: bool
defaultValue: false
ShouldRestrictBaseURLSchemes:
type: bool
defaultValue: false
AVFoundationEnabled:
type: bool
defaultValue: DEFAULT_AVFOUNDATION_ENABLED
getter: isAVFoundationEnabled
webcoreBinding: DeprecatedGlobalSettings
condition: USE(AVFOUNDATION)
AVFoundationNSURLSessionEnabled:
type: bool
defaultValue: true
getter: isAVFoundationNSURLSessionEnabled
webcoreBinding: DeprecatedGlobalSettings
condition: USE(AVFOUNDATION)
GStreamerEnabled:
type: bool
defaultValue: true
getter: isGStreamerEnabled
webcoreBinding: DeprecatedGlobalSettings
condition: USE(GSTREAMER)
RequiresUserGestureForMediaPlayback:
type: bool
defaultValue: false
webcoreBinding: custom
RequiresUserGestureForVideoPlayback:
type: bool
defaultValue: false
webcoreBinding: custom
RequiresUserGestureForAudioPlayback:
type: bool
defaultValue: DEFAULT_REQUIRES_USER_GESTURE_FOR_AUDIO_PLAYBACK
webcoreBinding: custom
RequiresUserGestureToLoadVideo:
type: bool
defaultValue: false
MainContentUserGestureOverrideEnabled:
type: bool
defaultValue: false
MediaUserGestureInheritsFromDocument:
type: bool
defaultValue: false
AllowsInlineMediaPlayback:
type: bool
defaultValue: DEFAULT_ALLOWS_INLINE_MEDIA_PLAYBACK
AllowsInlineMediaPlaybackAfterFullscreen:
type: bool
defaultValue: DEFAULT_ALLOWS_INLINE_MEDIA_PLAYBACK_AFTER_FULLSCREEN
InlineMediaPlaybackRequiresPlaysInlineAttribute:
type: bool
defaultValue: DEFAULT_INLINE_MEDIA_PLAYBACK_REQUIRES_PLAYS_INLINE_ATTRIBUTE
InvisibleAutoplayNotPermitted:
type: bool
defaultValue: DEFAULT_INVISIBLE_AUTOPLAY_NOT_PERMITTED
MediaDataLoadsAutomatically:
type: bool
defaultValue: DEFAULT_MEDIA_DATA_LOADS_AUTOMATICALLY
AllowsPictureInPictureMediaPlayback:
type: bool
defaultValue: DEFAULT_ALLOWS_PICTURE_IN_PICTURE_MEDIA_PLAYBACK
AllowsAirPlayForMediaPlayback:
type: bool
defaultValue: true
condition: ENABLE(WIRELESS_PLAYBACK_TARGET)
MediaControlsScaleWithPageZoom:
type: bool
defaultValue: DEFAULT_MEDIA_CONTROLS_SCALE_WITH_PAGE_ZOOM
InspectorStartsAttached:
type: bool
defaultValue: true
webcoreBinding: none
ShowsToolTipOverTruncatedText:
type: bool
defaultValue: false
MockScrollbarsEnabled:
type: bool
defaultValue: false
webcoreBinding: DeprecatedGlobalSettings
WebAudioEnabled:
type: bool
defaultValue: true
condition: ENABLE(WEB_AUDIO)
AttachmentElementEnabled:
type: bool
defaultValue: false
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(ATTACHMENT_ELEMENT)
SuppressesIncrementalRendering:
type: bool
defaultValue: false
BackspaceKeyNavigationEnabled:
type: bool
defaultValue: DEFAULT_BACKSPACE_KEY_NAVIGATION_ENABLED
CaretBrowsingEnabled:
type: bool
defaultValue: false
ShouldDisplaySubtitles:
type: bool
defaultValue: false
condition: ENABLE(VIDEO_TRACK)
ShouldDisplayCaptions:
type: bool
defaultValue: false
condition: ENABLE(VIDEO_TRACK)
ShouldDisplayTextDescriptions:
type: bool
defaultValue: false
condition: ENABLE(VIDEO_TRACK)
NotificationsEnabled:
type: bool
defaultValue: true
condition: ENABLE(NOTIFICATIONS)
ShouldRespectImageOrientation:
type: bool
defaultValue: DEFAULT_SHOULD_RESPECT_IMAGE_ORIENTATION
WantsBalancedSetDefersLoadingBehavior:
type: bool
defaultValue: false
RequestAnimationFrameEnabled:
type: bool
defaultValue: true
RequestIdleCallbackEnabled:
type: bool
defaultValue: false
humanReadableName: "requestIdleCallback"
humanReadableDescription: "Enable requestIdleCallback support"
category: experimental
DiagnosticLoggingEnabled:
type: bool
defaultValue: false
AsynchronousPluginInitializationEnabled:
type: bool
defaultValue: false
webcoreBinding: none
AsynchronousPluginInitializationEnabledForAllPlugins:
type: bool
defaultValue: false
webcoreBinding: none
ArtificialPluginInitializationDelayEnabled:
type: bool
defaultValue: false
webcoreBinding: none
# FIXME: What is this?
TabToLinksEnabled:
type: bool
defaultValue: false
webcoreBinding: none
ScrollingPerformanceLoggingEnabled:
type: bool
defaultValue: false
webcoreBinding: custom
ScrollAnimatorEnabled:
type: bool
defaultValue: DEFAULT_WEBKIT_SCROLL_ANIMATOR_ENABLED
condition: ENABLE(SMOOTH_SCROLLING)
ForceUpdateScrollbarsOnMainThreadForPerformanceTesting:
type: bool
defaultValue: false
CookieEnabled:
type: bool
defaultValue: true
PlugInSnapshottingEnabled:
type: bool
defaultValue: false
SnapshotAllPlugIns:
type: bool
defaultValue: false
AutostartOriginPlugInSnapshottingEnabled:
type: bool
defaultValue: true
PrimaryPlugInSnapshotDetectionEnabled:
type: bool
defaultValue: true
PDFPluginEnabled:
type: bool
defaultValue: DEFAULT_PDFPLUGIN_ENABLED
webcoreBinding: none
condition: PLATFORM(COCOA)
UsesEncodingDetector:
type: bool
defaultValue: false
TextAutosizingEnabled:
type: bool
defaultValue: WebCore::Settings::defaultTextAutosizingEnabled()
condition: ENABLE(TEXT_AUTOSIZING)
AggressiveTileRetentionEnabled:
type: bool
defaultValue: false
TemporaryTileCohortRetentionEnabled:
type: bool
defaultValue: DEFAULT_TEMPORARY_TILE_COHORT_RETENTION_ENABLED
PageVisibilityBasedProcessSuppressionEnabled:
type: bool
defaultValue: true
webcoreBinding: none
SmartInsertDeleteEnabled:
type: bool
defaultValue: true
SelectTrailingWhitespaceEnabled:
type: bool
defaultValue: false
ShowsURLsInToolTipsEnabled:
type: bool
defaultValue: false
webcoreName: showsURLsInToolTips
HiddenPageDOMTimerThrottlingEnabled:
type: bool
defaultValue: DEFAULT_HIDDEN_PAGE_DOM_TIMER_THROTTLING_ENABLED
HiddenPageDOMTimerThrottlingAutoIncreases:
type: bool
defaultValue: false
HiddenPageCSSAnimationSuspensionEnabled:
type: bool
defaultValue: DEFAULT_HIDDEN_PAGE_CSS_ANIMATION_SUSPENSION_ENABLED
RenderingUpdateThrottlingEnabled:
type: bool
defaultValue: true
LowPowerVideoAudioBufferSizeEnabled:
type: bool
defaultValue: true
webcoreBinding: DeprecatedGlobalSettings
ThreadedScrollingEnabled:
type: bool
defaultValue: true
webcoreBinding: none
SimpleLineLayoutEnabled:
type: bool
defaultValue: true
humanReadableName: "Simple line layout"
humanReadableDescription: "Enable simple line layout path (SLL)"
category: internal
ContentChangeObserverEnabled:
type: bool
defaultValue: true
condition: PLATFORM(IOS_FAMILY)
SubpixelCSSOMElementMetricsEnabled:
type: bool
defaultValue: false
UseGiantTiles:
type: bool
defaultValue: false
MediaRecorderEnabled:
type: bool
defaultValue: false
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(MEDIA_STREAM)
humanReadableName: "MediaRecorder"
humanReadableDescription: "MediaRecorder"
category: experimental
MediaDevicesEnabled:
type: bool
defaultValue: false
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(MEDIA_STREAM)
MediaStreamEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(MEDIA_STREAM)
MediaEnabled:
type: bool
defaultValue: true
webcoreName: mediaEnabled
condition: ENABLE(VIDEO)
ScreenCaptureEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(MEDIA_STREAM) && PLATFORM(MAC)
humanReadableName: "ScreenCapture"
humanReadableDescription: "Enable ScreenCapture"
category: experimental
PeerConnectionEnabled:
type: bool
defaultValue: WebCore::LibWebRTCProvider::webRTCAvailable()
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(WEB_RTC)
InterruptAudioOnPageVisibilityChangeEnabled:
type: bool
defaultValue: WebCore::RealtimeMediaSourceCenter::shouldInterruptAudioOnPageVisibilityChange()
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(MEDIA_STREAM)
WebRTCVP8CodecEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(WEB_RTC)
humanReadableName: "WebRTC VP8 codec"
humanReadableDescription: "Enable WebRTC VP8 codec"
category: internal
WebRTCDTMFEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(WEB_RTC)
humanReadableName: "WebRTC DTMF"
humanReadableDescription: "Enable WebRTC DTMF"
category: experimental
WebRTCH264SimulcastEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(WEB_RTC)
humanReadableName: "WebRTC H264 Simulcast"
humanReadableDescription: "Enable WebRTC H264 Simulcast"
category: internal
WebRTCMDNSICECandidatesEnabled:
type: bool
defaultValue: true
humanReadableName: "WebRTC mDNS ICE candidates"
humanReadableDescription: "Enable WebRTC mDNS ICE candidates"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
condition: ENABLE(WEB_RTC)
UseLegacyTextAlignPositionedElementBehavior:
type: bool
defaultValue: false
SpatialNavigationEnabled:
type: bool
defaultValue: false
MediaSourceEnabled:
type: bool
defaultValue: WebCore::Settings::platformDefaultMediaSourceEnabled()
condition: ENABLE(MEDIA_SOURCE)
webcoreBinding: none
ViewGestureDebuggingEnabled:
type: bool
defaultValue: false
webcoreBinding: none
ShouldConvertPositionStyleOnCopy:
type: bool
defaultValue: false
Standalone:
type: bool
defaultValue: false
TelephoneNumberParsingEnabled:
type: bool
defaultValue: false
AllowMultiElementImplicitSubmission:
type: bool
defaultValue: false
AlwaysUseAcceleratedOverflowScroll:
type: bool
defaultValue: false
PasswordEchoEnabled:
type: bool
defaultValue: DEFAULT_PASSWORD_ECHO_ENABLED
ImageControlsEnabled:
type: bool
defaultValue: false
condition: ENABLE(SERVICE_CONTROLS)
EnableInheritURIQueryComponent:
type: bool
defaultValue: false
ServiceControlsEnabled:
type: bool
defaultValue: false
condition: ENABLE(SERVICE_CONTROLS)
DeferredCSSParserEnabled:
type: bool
defaultValue: false
HTTPEquivEnabled:
type: bool
defaultValue: true
webcoreName: httpEquivEnabled
MockCaptureDevicesPromptEnabled:
type: bool
defaultValue: true
webcoreBinding: none
# FIXME: What is this for?
EnumeratingAllNetworkInterfacesEnabled:
type: bool
defaultValue: false
webcoreBinding: none
ShadowDOMEnabled:
type: bool
defaultValue: true
humanReadableName: "Shadow DOM"
humanReadableDescription: "HTML Shadow DOM prototype"
webcoreBinding: RuntimeEnabledFeatures
FetchAPIEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
DownloadAttributeEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(DOWNLOAD_ATTRIBUTE)
SelectionPaintingWithoutSelectionGapsEnabled:
type: bool
defaultValue: false
ApplePayEnabled:
type: bool
defaultValue: DEFAULT_APPLE_PAY_ENABLED
condition: ENABLE(APPLE_PAY)
ApplePayCapabilityDisclosureAllowed:
type: bool
defaultValue: true
condition: ENABLE(APPLE_PAY)
LayoutViewportHeightExpansionFactor:
type: double
defaultValue: DEFAULT_VISUAL_VIEWPORT_HEIGHT_EXPANSION_FACTOR
NeedsStorageAccessFromFileURLsQuirk:
type: bool
defaultValue: true
LargeImageAsyncDecodingEnabled:
type: bool
defaultValue: true
AnimatedImageAsyncDecodingEnabled:
type: bool
defaultValue: true
CustomElementsEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
MenuItemElementEnabled:
type: bool
defaultValue: false
webcoreBinding: RuntimeEnabledFeatures
MediaPreloadingEnabled:
type: bool
defaultValue: false
webcoreBinding: RuntimeEnabledFeatures
InteractiveFormValidationEnabled:
type: bool
defaultValue: true
humanReadableName: "HTML Interactive Form Validation"
humanReadableDescription: "HTML interactive form validation"
webcoreBinding: RuntimeEnabledFeatures
ShouldSuppressTextInputFromEditingDuringProvisionalNavigation:
type: bool
defaultValue: false
GamepadsEnabled:
type: bool
defaultValue: true
humanReadableName: "Gamepads"
humanReadableDescription: "Web Gamepad API support"
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(GAMEPAD)
HighlightAPIEnabled:
type: bool
defaultValue: false
humanReadableName: "Highlight API"
humanReadableDescription: "Highlight API support"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
InputEventsEnabled:
type: bool
defaultValue: true
humanReadableName: "Input Events"
humanReadableDescription: "Enable InputEvents support"
webcoreBinding: RuntimeEnabledFeatures
WebAuthenticationEnabled:
type: bool
defaultValue: false
humanReadableName: "Web Authentication"
humanReadableDescription: "Enable Web Authentication support"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
condition: ENABLE(WEB_AUTHN)
WebAuthenticationLocalAuthenticatorEnabled:
type: bool
defaultValue: false
humanReadableName: "Web Authentication Local Authenticator"
humanReadableDescription: "Enable Web Authentication local authenticator support"
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(WEB_AUTHN)
ModernMediaControlsEnabled:
type: bool
defaultValue: DEFAULT_MODERN_MEDIA_CONTROLS_ENABLED
humanReadableName: "Modern Media Controls"
humanReadableDescription: "Use modern media controls look"
webcoreBinding: RuntimeEnabledFeatures
ResourceTimingEnabled:
type: bool
defaultValue: true
humanReadableName: "Resource Timing"
humanReadableDescription: "Enable ResourceTiming API"
webcoreBinding: RuntimeEnabledFeatures
UserTimingEnabled:
type: bool
defaultValue: true
humanReadableName: "User Timing"
humanReadableDescription: "Enable UserTiming API"
webcoreBinding: RuntimeEnabledFeatures
BeaconAPIEnabled:
type: bool
defaultValue: true
humanReadableName: "Beacon API"
humanReadableDescription: "Beacon API"
LegacyEncryptedMediaAPIEnabled:
type: bool
defaultValue: true
humanReadableName: "Enable Legacy EME API"
humanReadableDescription: "Enable legacy EME API"
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(LEGACY_ENCRYPTED_MEDIA)
AllowMediaContentTypesRequiringHardwareSupportAsFallback:
type: bool
defaultValue: DEFAULT_ALLOW_MEDIA_CONTENT_TYPES_REQUIRING_HARDWARE_SUPPORT_AS_FALLBACK
humanReadableName: "Allow Media Content Types Requirining Hardware As Fallback"
humanReadableDescription: "Allow Media Content Types Requirining Hardware As Fallback"
InspectorAdditionsEnabled:
type: bool
defaultValue: false
humanReadableName: "Web Inspector Additions"
humanReadableDescription: "Enable additional page APIs used by the Web Inspector frontend page"
webcoreBinding: RuntimeEnabledFeatures
DirectoryUploadEnabled:
type: bool
defaultValue: DEFAULT_DIRECTORY_UPLOAD_ENABLED
humanReadableName: "Directory Upload"
humanReadableDescription: "input.webkitdirectory / dataTransferItem.webkitGetAsEntry()"
webcoreBinding: RuntimeEnabledFeatures
DataTransferItemsEnabled:
type: bool
defaultValue: DEFAULT_DATA_TRANSFER_ITEMS_ENABLED
humanReadableName: "Data Transfer Items"
humanReadableDescription: "Enables DataTransferItem in the clipboard API"
webcoreBinding: RuntimeEnabledFeatures
CustomPasteboardDataEnabled:
type: bool
defaultValue: DEFAULT_CUSTOM_PASTEBOARD_DATA_ENABLED
humanReadableName: "Custom pasteboard data"
humanReadableDescription: "Enable custom clipboard types and better security model for clipboard API."
webcoreBinding: RuntimeEnabledFeatures
AsyncClipboardAPIEnabled:
type: bool
defaultValue: DEFAULT_ASYNC_CLIPBOARD_API_ENABLED
humanReadableName: "Async clipboard API"
humanReadableDescription: "Enable the async clipboard API"
category: experimental
WebShareEnabled:
type: bool
defaultValue: DEFAULT_WEB_SHARE_ENABLED
humanReadableName: "Web Share"
humanReadableDescription: "Enable support for share sheet via Web Share API"
webcoreBinding: RuntimeEnabledFeatures
ViewportFitEnabled:
type: bool
defaultValue: true
humanReadableName: "Viewport Fit"
humanReadableDescription: "Enable viewport-fit viewport parameter"
IncrementalRenderingSuppressionTimeout:
type: double
defaultValue: 5
webcoreName: incrementalRenderingSuppressionTimeoutInSeconds
MinimumFontSize:
type: double
defaultValue: 0
MinimumLogicalFontSize:
type: double
defaultValue: 9
MinimumZoomFontSize:
type: double
defaultValue: WebCore::Settings::defaultMinimumZoomFontSize()
condition: ENABLE(TEXT_AUTOSIZING)
DefaultFontSize:
type: double
defaultValue: 16
DefaultFixedFontSize:
type: double
defaultValue: 13
LayoutInterval:
type: double
defaultValue: -1
webcoreBinding: custom
MaxParseDuration:
type: double
defaultValue: -1
PasswordEchoDuration:
type: double
defaultValue: 2
webcoreName: passwordEchoDurationInSeconds
LayoutFallbackWidth:
type: uint32_t
defaultValue: 980
DeviceWidth:
type: uint32_t
defaultValue: 0
DeviceHeight:
type: uint32_t
defaultValue: 0
EditableLinkBehavior:
type: uint32_t
defaultValue: WebCore::EditableLinkNeverLive
webcoreBinding: custom
InspectorAttachedHeight:
type: uint32_t
defaultValue: 500
webcoreBinding: none
InspectorAttachedWidth:
type: uint32_t
defaultValue: 750
webcoreBinding: none
InspectorAttachmentSide:
type: uint32_t
defaultValue: 0
webcoreBinding: none
StorageBlockingPolicy:
type: uint32_t
defaultValue: WebCore::SecurityOrigin::BlockThirdPartyStorage
webcoreBinding: custom
JavaScriptRuntimeFlags:
type: uint32_t
defaultValue: 0
webcoreBinding: custom
DataDetectorTypes:
type: uint32_t
defaultValue: 0
webcoreBinding: custom
condition: ENABLE(DATA_DETECTION)
UserInterfaceDirectionPolicy:
type: uint32_t
defaultValue: 0
webcoreBinding: custom
SystemLayoutDirection:
type: uint32_t
defaultValue: 0
webcoreBinding: custom
FrameFlatteningEnabled:
type: bool
defaultValue: DEFAULT_FRAME_FLATTENING
webcoreBinding: custom
humanReadableName: "Frame flattening"
humanReadableDescription: "Enable frame flattening, which adjusts the height of an iframe to fit its contents"
category: internal
StandardFontFamily:
type: String
defaultValue: DEFAULT_STANDARD_FONT_FAMILY
CursiveFontFamily:
type: String
defaultValue: DEFAULT_CURSIVE_FONT_FAMILY
FantasyFontFamily:
type: String
defaultValue: DEFAULT_FANTASY_FONT_FAMILY
FixedFontFamily:
type: String
defaultValue: DEFAULT_FIXED_FONT_FAMILY
SansSerifFontFamily:
type: String
defaultValue: DEFAULT_SANS_SERIF_FONT_FAMILY
SerifFontFamily:
type: String
defaultValue: DEFAULT_SERIF_FONT_FAMILY
PictographFontFamily:
type: String
defaultValue: DEFAULT_PICTOGRAPH_FONT_FAMILY
DefaultTextEncodingName:
type: String
defaultValue: defaultTextEncodingNameForSystemLanguage()
FTPDirectoryTemplatePath:
type: String
defaultValue: '""'
MediaContentTypesRequiringHardwareSupport:
type: String
defaultValue: WebCore::Settings::defaultMediaContentTypesRequiringHardwareSupport()
InspectorWindowFrame:
type: String
defaultValue: '""'
webcoreBinding: none
InactiveMediaCaptureSteamRepromptIntervalInMinutes:
type: double
defaultValue: DEFAULT_INTERACTIVE_MEDIA_CAPTURE_STREAM_REPROMPT_INTERVAL_IN_MINUTES
webcoreBinding: none
LongRunningMediaCaptureStreamRepromptIntervalInHours:
type: double
defaultValue: 24
webcoreBinding: none
PassiveTouchListenersAsDefaultOnDocument:
type: bool
defaultValue: defaultPassiveTouchListenersAsDefaultOnDocument()
webcoreName: passiveTouchListenersAsDefaultOnDocument
ShouldIgnoreMetaViewport:
type: bool
defaultValue: false
# Debug Preferences
AcceleratedDrawingEnabled:
type: bool
defaultValue: true
category: debug
SubpixelAntialiasedLayerTextEnabled:
type: bool
defaultValue: DEFAULT_SUBPIXEL_ANTIALIASED_LAYER_TEXT_ENABLED
category: debug
DisplayListDrawingEnabled:
type: bool
defaultValue: false
category: debug
CompositingBordersVisible:
type: bool
defaultValue: false
category: debug
webcoreName: showDebugBorders
CompositingRepaintCountersVisible:
type: bool
defaultValue: false
category: debug
webcoreName: showRepaintCounter
TiledScrollingIndicatorVisible:
type: bool
defaultValue: false
category: debug
webcoreName: showTiledScrollingIndicator
DisableScreenSizeOverride:
type: bool
defaultValue: false
category: debug
condition: PLATFORM(IOS_FAMILY)
SimpleLineLayoutDebugBordersEnabled:
type: bool
defaultValue: false
category: debug
DeveloperExtrasEnabled:
type: bool
defaultValue: false
category: debug
LogsPageMessagesToSystemConsoleEnabled:
type: bool
defaultValue: false
category: debug
IgnoreViewportScalingConstraints:
type: bool
defaultValue: false
category: debug
webcoreBinding: none
condition: PLATFORM(IOS_FAMILY)
ForceAlwaysUserScalable:
type: bool
defaultValue: false
category: debug
webcoreBinding: none
condition: PLATFORM(IOS_FAMILY)
ResourceUsageOverlayVisible:
type: bool
defaultValue: false
category: debug
condition: ENABLE(RESOURCE_USAGE)
VisibleDebugOverlayRegions:
type: uint32_t
defaultValue: 0
category: debug
ShouldEnableTextAutosizingBoost:
type: bool
defaultValue: false
condition: ENABLE(TEXT_AUTOSIZING)
ShouldAllowUserInstalledFonts:
type: bool
defaultValue: true
MediaCapabilitiesEnabled:
type: bool
defaultValue: true
SystemPreviewEnabled:
type: bool
defaultValue: false
webcoreBinding: RuntimeEnabledFeatures
condition: USE(SYSTEM_PREVIEW)
CacheAPIEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
ConstantPropertiesEnabled:
type: bool
defaultValue: true
SubresourceIntegrityEnabled:
type: bool
defaultValue: true
CrossOriginResourcePolicyEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
DisabledAdaptationsMetaTagEnabled:
type: bool
defaultValue: DISABLED_ADAPTATIONS_META_TAG_ENABLED
webcoreBinding: RuntimeEnabledFeatures
ColorFilterEnabled:
type: bool
defaultValue: false
PunchOutWhiteBackgroundsInDarkMode:
type: bool
defaultValue: false
IncompleteImageBorderEnabled:
type: bool
defaultValue: false
ShouldDeferAsynchronousScriptsUntilAfterDocumentLoad:
type: bool
defaultValue: false
StorageAccessAPIEnabled:
type: bool
defaultValue: true
LinkPreloadEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
IsSecureContextAttributeEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
SourceBufferChangeTypeEnabled:
type: bool
defaultValue: true
condition: ENABLE(MEDIA_SOURCE)
KeygenElementEnabled:
type: bool
defaultValue: false
webcoreBinding: RuntimeEnabledFeatures
humanReadableName: "HTMLKeygenElement"
humanReadableDescription: "Enables the deprecated and disabled-by-default HTML keygen element."
category: internal
EncryptedMediaAPIEnabled:
type: bool
defaultValue: true
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(ENCRYPTED_MEDIA)
VideoQualityIncludesDisplayCompositingEnabled:
type: bool
defaultValue: false
condition: ENABLE(VIDEO)
EditableImagesEnabled:
type: bool
defaultValue: false
ShouldDecidePolicyBeforeLoadingQuickLookPreview:
defaultValue: false
type: bool
ShouldUseServiceWorkerShortTimeout:
defaultValue: false
type: bool
# For experimental features:
# The type should be boolean.
# You must provide a humanReadableName and humanReadableDescription for all experimental features. They
# are the text exposed to the user from the WebKit client.
# The default value may be either false (for unstable features) or
# DEFAULT_EXPERIMENTAL_FEATURES_ENABLED (for features that are ready for
# wider testing).
SpringTimingFunctionEnabled:
type: bool
defaultValue: DEFAULT_EXPERIMENTAL_FEATURES_ENABLED
humanReadableName: "CSS Spring Animations"
humanReadableDescription: "CSS Spring Animation prototype"
category: experimental
ImageBitmapEnabled:
type: bool
defaultValue: DEFAULT_EXPERIMENTAL_FEATURES_ENABLED
humanReadableName: "ImageBitmap"
humanReadableDescription: "Support for the ImageBitmap APIs"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
OffscreenCanvasEnabled:
type: bool
defaultValue: DEFAULT_OFFSCREEN_CANVAS_ENABLED
humanReadableName: "OffscreenCanvas"
humanReadableDescription: "Support for the OffscreenCanvas APIs"
category: internal
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(OFFSCREEN_CANVAS)
IntersectionObserverEnabled:
type: bool
defaultValue: true
humanReadableName: "Intersection Observer"
humanReadableDescription: "Enable Intersection Observer support"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
condition: ENABLE(INTERSECTION_OBSERVER)
VisualViewportAPIEnabled:
type: bool
defaultValue: true
humanReadableName: "Visual Viewport API"
humanReadableDescription: "Enable Visual Viewport API"
category: experimental
PointerEventsEnabled:
type: bool
defaultValue: true
humanReadableName: "Pointer Events"
humanReadableDescription: "Enable Pointer Events"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
SyntheticEditingCommandsEnabled:
type: bool
defaultValue: true
humanReadableName: "Synthetic Editing Commands"
humanReadableDescription: "Enable Synthetic Editing Commands"
category: experimental
CSSOMViewScrollingAPIEnabled:
type: bool
defaultValue: defaultCSSOMViewScrollingAPIEnabled()
humanReadableName: "CSSOM View Scrolling API"
humanReadableDescription: "Implement standard behavior for scrollLeft, scrollTop, scrollWidth, scrollHeight, scrollTo, scrollBy and scrollingElement."
category: internal
BlockingOfSmallPluginsEnabled:
type: bool
defaultValue: true
humanReadableName: "Block small plugins"
humanReadableDescription: "Stop plugins smaller than a certain threshold from loading."
category: internal
WebAnimationsEnabled:
type: bool
defaultValue: true
humanReadableName: "Web Animations"
humanReadableDescription: "Web Animations prototype"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
WebAnimationsCSSIntegrationEnabled:
type: bool
defaultValue: true
humanReadableName: "CSS Animations via Web Animations"
humanReadableDescription: "Expose CSS Animations and CSS Transitions through getAnimations()"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
WebAnimationsCompositeOperationsEnabled:
type: bool
defaultValue: DEFAULT_EXPERIMENTAL_FEATURES_ENABLED
humanReadableName: "Web Animations composite operations"
humanReadableDescription: "Support for the CompositeOperation enum and properties consuming it"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
WebAnimationsMutableTimelinesEnabled:
type: bool
defaultValue: DEFAULT_EXPERIMENTAL_FEATURES_ENABLED
humanReadableName: "Web Animations mutable timelines"
humanReadableDescription: "Support for setting the timeline property of an Animation object"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
WebGL2Enabled:
type: bool
defaultValue: false
humanReadableName: "WebGL 2.0"
humanReadableDescription: "WebGL 2 prototype"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(WEBGL2)
WebGPUEnabled:
type: bool
defaultValue: false
humanReadableName: "WebGPU"
humanReadableDescription: "WebGPU Sketch prototype"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(WEBGPU)
AccessibilityObjectModelEnabled:
type: bool
defaultValue: false
humanReadableName: "Accessibility Object Model"
humanReadableDescription: "Accessibility Object Model support"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
WebVREnabled:
type: bool
defaultValue: DEFAULT_EXPERIMENTAL_FEATURES_ENABLED
humanReadableName: "WebVR"
humanReadableDescription: "WebVR Module support"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
condition: PLATFORM(GTK) || PLATFORM(WPE)
ServerTimingEnabled:
type: bool
defaultValue: DEFAULT_SERVER_TIMING_ENABLED
humanReadableName: "Server Timing"
humanReadableDescription: "Enable Server Timing API"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
webcoreName: serverTimingEnabled
CSSCustomPropertiesAndValuesEnabled:
type: bool
defaultValue: false
humanReadableName: "CSS Custom Properties and Values API"
humanReadableDescription: "Enable CSS Custom Properties and Values API"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
CSSPaintingAPIEnabled:
type: bool
defaultValue: DEFAULT_CSS_PAINTING_API_ENABLED
humanReadableName: "CSS Painting API"
humanReadableDescription: "Enable the CSS Painting API"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
condition: ENABLE(CSS_PAINTING_API)
CSSTypedOMEnabled:
type: bool
defaultValue: DEFAULT_CSS_TYPED_OM_ENABLED
humanReadableName: "CSS Typed OM"
humanReadableDescription: "Enable the CSS Typed OM"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
condition: ENABLE(CSS_TYPED_OM)
WebSQLDisabled:
type: bool
defaultValue: true
humanReadableName: "Disable Web SQL"
humanReadableDescription: "Disable Web SQL"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
ProcessSwapOnCrossSiteNavigationEnabled:
type: bool
defaultValue: DEFAULT_PROCESS_SWAP_ON_CROSS_SITE_NAVIGATION_ENABLED
humanReadableName: "Swap Processes on Cross-Site Navigation"
humanReadableDescription: "Swap WebContent processes on cross-site navigations"
category: experimental
webcoreBinding: none
MediaCapabilitiesExtensionsEnabled:
type: bool
defaultValue: true
humanReadableName: "Media Capabilities Extensions"
humanReadableDescription: "Media Capabilities Extensions"
category: experimental
HDRMediaCapabilitiesEnabled:
type: bool
defaultValue: true
humanReadableName: "HDR Media Capabilities"
humanReadableDescription: "HDR Media Capabilities"
category: experimental
ResizeObserverEnabled:
type: bool
defaultValue: true
humanReadableName: "Resize Observer"
humanReadableDescription: "Enable Resize Observer support"
category: experimental
condition: ENABLE(RESIZE_OBSERVER)
AdClickAttributionEnabled:
type: bool
defaultValue: false
humanReadableName: "Ad Click Attribution"
humanReadableDescription: "Enable Ad Click Attribution for Cross-Site Link Navigations"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
AdClickAttributionDebugModeEnabled:
type: bool
defaultValue: false
humanReadableName: "Ad Click Attribution Debug Mode"
humanReadableDescription: "Enable Ad Click Attribution Debug Mode"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
FetchAPIKeepAliveEnabled:
type: bool
defaultValue: true
humanReadableName: "Fetch API Request KeepAlive"
humanReadableDescription: "Enable Fetch API Request KeepAlive"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
webcoreName: fetchAPIKeepAliveEnabled
CSSShadowPartsEnabled:
type: bool
defaultValue: true
humanReadableName: "CSS Shadow Parts"
humanReadableDescription: "Enable CSS Shadow Parts"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
GenericCueAPIEnabled:
type: bool
defaultValue: true
condition: ENABLE(VIDEO_TRACK)
humanReadableName: "Generic Text Track Cue API"
humanReadableDescription: "Enable Generic Text Track Cue API"
category: experimental
webcoreName: genericCueAPIEnabled
CaptureVideoInUIProcessEnabled:
type: bool
defaultValue: false
humanReadableName: "Capture video in UIProcess"
humanReadableDescription: "Enable video capture in UIProcess"
category: experimental
webcoreBinding: none
condition: ENABLE(MEDIA_STREAM)
# For internal features:
# The type should be boolean.
# You must provide a humanReadableName and humanReadableDescription for all debug features. They
# are the text exposed to the user from the WebKit client.
ExperimentalPlugInSandboxProfilesEnabled:
type: bool
defaultValue: false
humanReadableName: "Sandbox Plug-Ins"
humanReadableDescription: "Enable Plug-In sandboxing"
category: internal
webcoreBinding: RuntimeEnabledFeatures
webcoreName: experimentalPlugInSandboxProfilesEnabled
ItpDebugModeEnabled:
type: bool
defaultValue: false
humanReadableName: "ITP Debug Mode"
humanReadableDescription: "Intelligent Tracking Prevention Debug Mode"
webcoreBinding: RuntimeEnabledFeatures
IsITPDatabaseEnabled:
type: bool
defaultValue: true
humanReadableName: "ITP Database Backend"
humanReadableDescription: "Enable Intelligent Tracking Prevention Database Backend"
webcoreBinding: RuntimeEnabledFeatures
category: internal
ServiceWorkersEnabled:
type: bool
defaultValue: DEFAULT_SERVICE_WORKERS_ENABLED
humanReadableName: "Service Workers"
humanReadableDescription: "Enable Service Workers"
category: internal
webcoreBinding: RuntimeEnabledFeatures
webcoreName: serviceWorkerEnabled
condition: ENABLE(SERVICE_WORKER)
AsyncFrameScrollingEnabled:
type: bool
defaultValue: DEFAULT_ASYNC_FRAME_SCROLLING_ENABLED
humanReadableName: "Async Frame Scrolling"
humanReadableDescription: "Perform frame scrolling off the main thread"
category: internal
AsyncOverflowScrollingEnabled:
type: bool
defaultValue: DEFAULT_ASYNC_OVERFLOW_SCROLLING_ENABLED
humanReadableName: "Async Overflow Scrolling"
humanReadableDescription: "Perform overflow scrolling off the main thread"
category: internal
LegacyOverflowScrollingTouchEnabled:
type: bool
defaultValue: true
humanReadableName: "Legacy -webkit-overflow-scrolling property"
humanReadableDescription: "Support the legacy -webkit-overflow-scrolling CSS property"
condition: ENABLE(OVERFLOW_SCROLLING_TOUCH)
category: internal
FullScreenEnabled:
type: bool
defaultValue: false
condition: ENABLE(FULLSCREEN_API)
hidden: EXPERIMENTAL_FULLSCREEN_API_HIDDEN
humanReadableName: "Fullscreen API"
humanReadableDescription: "Fullscreen API"
category: internal
AriaReflectionEnabled:
type: bool
defaultValue: true
humanReadableName: "ARIA Reflection"
humanReadableDescription: "ARIA Reflection support"
category: internal
webcoreBinding: RuntimeEnabledFeatures
WebAPIStatisticsEnabled:
type: bool
defaultValue: false
humanReadableName: "Web API Statistics"
humanReadableDescription: "Enable Web API Statistics"
webcoreBinding: RuntimeEnabledFeatures
category: internal
SecureContextChecksEnabled:
type: bool
defaultValue: true
humanReadableName: "Secure Context Checks"
humanReadableDescription: "Allow access to HTTPS-only Web APIs over HTTP"
webcoreBinding: RuntimeEnabledFeatures
category: internal
SelectionAcrossShadowBoundariesEnabled:
type: bool
defaultValue: true
humanReadableName: "Selection across shadow DOM"
humanReadableDescription: "Allow user-initiated selection across shadow DOM boundaries"
category: internal
webcoreName: selectionAcrossShadowBoundariesEnabled
FasterClicksEnabled:
type: bool
defaultValue: true
condition: PLATFORM(IOS_FAMILY)
humanReadableName: "Fast clicks"
humanReadableDescription: "Support faster clicks on zoomable pages"
webcoreBinding: none
category: internal
PreferFasterClickOverDoubleTap:
type: bool
defaultValue: DEFAULT_PREFER_FASTER_CLICK_OVER_DOUBLE_TAP
condition: PLATFORM(IOS_FAMILY)
humanReadableName: "Fast clicks beat DTTZ"
humanReadableDescription: "Prefer a faster click over a double tap"
webcoreBinding: none
category: internal
ZoomOnDoubleTapWhenRoot:
type: bool
defaultValue: false
condition: PLATFORM(IOS_FAMILY)
humanReadableName: "DTTZ also when root"
humanReadableDescription: "Double taps zoom, even if we dispatched a click on the root nodes"
webcoreBinding: none
category: internal
AlwaysZoomOnDoubleTap:
type: bool
defaultValue: false
condition: PLATFORM(IOS_FAMILY)
humanReadableName: "DTTZ always"
humanReadableDescription: "Double taps zoom, even if we dispatched a click anywhere"
webcoreBinding: none
category: internal
InputTypeColorEnabled:
type: bool
defaultValue: DEFAULT_INPUT_TYPE_COLOR_ENABLED
humanReadableName: "Color Inputs"
humanReadableDescription: "Enable input elements of type color"
category: internal
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(INPUT_TYPE_COLOR)
DataListElementEnabled:
type: bool
defaultValue: DEFAULT_DATALIST_ELEMENT_ENABLED
humanReadableName: "DataList Element"
humanReadableDescription: "Enable datalist elements"
category: internal
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(DATALIST_ELEMENT)
LayoutFormattingContextEnabled:
type: bool
defaultValue: false
humanReadableName: "Full next-generation layout (LFC)"
humanReadableDescription: "Enable full next-generation layout (LFC)"
category: internal
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(LAYOUT_FORMATTING_CONTEXT)
LayoutFormattingContextIntegrationEnabled:
type: bool
defaultValue: false
humanReadableName: "Next-generation line layout integration (LFC)"
humanReadableDescription: "Enable next-generation line layout integration (LFC)"
category: internal
webcoreBinding: RuntimeEnabledFeatures
condition: ENABLE(LAYOUT_FORMATTING_CONTEXT)
CaptureAudioInUIProcessEnabled:
type: bool
defaultValue: DEFAULT_CAPTURE_AUDIO_IN_UIPROCESS
humanReadableName: "Capture audio in UIProcess"
humanReadableDescription: "Enable audio capture in UIProcess"
category: internal
webcoreBinding: none
condition: ENABLE(MEDIA_STREAM)
CaptureAudioInGPUProcessEnabled:
type: bool
defaultValue: false
humanReadableName: "Capture audio in GPUProcess"
humanReadableDescription: "Capture audio in GPUProcess"
category: internal
webcoreBinding: none
condition: ENABLE(MEDIA_STREAM)
RestrictedHTTPResponseAccess:
type: bool
defaultValue: true
humanReadableName: "Filter HTTP Response for WebProcesses"
humanReadableDescription: "Enable HTTP Response filtering for WebProcesses"
category: internal
webcoreBinding: RuntimeEnabledFeatures
UndoManagerAPIEnabled:
type: bool
defaultValue: false
humanReadableName: "UndoManager DOM API"
humanReadableDescription: "Enable the UndoManager DOM API"
category: internal
webcoreBinding: RuntimeEnabledFeatures
CSSLogicalEnabled:
type: bool
defaultValue: false
humanReadableName: "CSS Logical Properties and Values"
humanReadableDescription: "Enable CSS Logical Properties and Values"
webcoreBinding: RuntimeEnabledFeatures
category: internal
DOMPasteAccessRequestsEnabled:
type: bool
defaultValue: DEFAULT_DOM_PASTE_ACCESS_REQUESTS_ENABLED
humanReadableName: "DOM Paste Access Requests"
humanReadableDescription: "Enable DOM Paste Access Requests"
category: internal
MouseEventsSimulationEnabled:
type: bool
defaultValue: false
humanReadableName: "Mouse events simulation"
humanReadableDescription: "Enable mouse events dispatch along with touch events on iOS"
webcoreBinding: RuntimeEnabledFeatures
category: internal
condition: ENABLE(TOUCH_EVENTS)
TextAutosizingUsesIdempotentMode:
type: bool
defaultValue: defaultTextAutosizingUsesIdempotentMode()
humanReadableName: "Idempotent Text Autosizing"
humanReadableDescription: "Use idempotent text autosizing mode"
category: internal
condition: ENABLE(TEXT_AUTOSIZING)
AllowViewportShrinkToFitContent:
type: bool
defaultValue: true
humanReadableName: "Allow Viewport Shrink to Fit Content"
humanReadableDescription: "Allow the viewport shrink to fit content heuristic when appropriate"
category: internal
condition: PLATFORM(IOS_FAMILY)
EnterKeyHintEnabled:
type: bool
defaultValue: DEFAULT_ENTER_KEY_HINT_ENABLED
humanReadableName: "Enter Key Hint"
humanReadableDescription: "Enable the enterKeyHint HTML attribute"
category: internal
ReferrerPolicyAttributeEnabled:
type: bool
defaultValue: false
humanReadableName: "Referrer Policy attribute"
humanReadableDescription: "Enable Referrer Policy attribute"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
PageAtRuleSupportEnabled:
type: bool
defaultValue: false
humanReadableName: "@page CSS at-rule support"
humanReadableDescription: "Enable @page support"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
CoreMathMLEnabled:
type: bool
defaultValue: DEFAULT_CORE_MATHML_ENABLED
humanReadableName: "MathML Core"
humanReadableDescription: "Disable features removed from the MathML Core spec."
category: experimental
ApplePayRemoteUIEnabled:
category: internal
condition: ENABLE(APPLE_PAY_REMOTE_UI)
defaultValue: true
humanReadableDescription: "Enable Apple Pay Remote UI"
humanReadableName: "Apple Pay Remote UI"
type: bool
LinkPrefetchEnabled:
type: bool
defaultValue: false
humanReadableName: "LinkPrefetch"
humanReadableDescription: "Enable LinkedPrefetch"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
LinkPreloadResponsiveImagesEnabled:
type: bool
defaultValue: false
humanReadableName: "Link preload responsive images"
humanReadableDescription: "Enable link preload responsive images"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
IsNSURLSessionWebSocketEnabled:
type: bool
defaultValue: false
humanReadableName: "NSURLSession WebSocket"
humanReadableDescription: "Use NSURLSession WebSocket API"
category: experimental
webcoreBinding: RuntimeEnabledFeatures
condition: HAVE(NSURLSESSION_WEBSOCKET)
LazyImageLoadingEnabled:
type: bool
defaultValue: false
humanReadableName: "Lazy Image Loading"
humanReadableDescription: "Enable Lazy Image Loading support"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
IsThirdPartyCookieBlockingDisabled:
type: bool
defaultValue: false
humanReadableName: "Disable Full 3rd-Party Cookie Blocking (ITP)"
humanReadableDescription: "Disable full third-party cookie blocking when Intelligent Tracking Prevention is enabled"
category: experimental
IsFirstPartyWebsiteDataRemovalDisabled:
type: bool
defaultValue: false
humanReadableName: "Disable Removal of Non-Cookie Data After 7 Days of No User Interaction (ITP)"
humanReadableDescription: "Disable removal of all non-cookie website data after seven days of no user interaction when Intelligent Tracking Prevention is enabled"
category: experimental
IsFirstPartyWebsiteDataRemovalLiveOnTestingEnabled:
type: bool
defaultValue: false
humanReadableName: "[ITP Live-On] 1 Hour Timeout For Non-Cookie Data Removal"
humanReadableDescription: "Remove all non-cookie website data after just one hour of no user interaction when Intelligent Tracking Prevention is enabled"
category: internal
IsFirstPartyWebsiteDataRemovalReproTestingEnabled:
type: bool
defaultValue: false
humanReadableName: "[ITP Repro] 30 Second Timeout For Non-Cookie Data Removal"
humanReadableDescription: "Remove all non-cookie website data after just 30 seconds of no user interaction when Intelligent Tracking Prevention is enabled"
category: internal
IsLoggedInAPIEnabled:
type: bool
defaultValue: false
humanReadableName: "IsLoggedIn web API"
humanReadableDescription: "Enable the proposed IsLoggedIn web API"
category: experimental
PictureInPictureAPIEnabled:
type: bool
defaultValue: true
condition: ENABLE(PICTURE_IN_PICTURE_API)
RemotePlaybackEnabled:
category: experimental
condition: ENABLE(WIRELESS_PLAYBACK_TARGET)
type: bool
defaultValue: true
humanReadableName: "Remote Playback API"
humanReadableDescription: "Enable Remote Playback API"
UseGPUProcessForMedia:
type: bool
defaultValue: false
condition: ENABLE(GPU_PROCESS)
humanReadableName: "Media in GPU process"
humanReadableDescription: "Do all media loading and playback in the GPU process"
category: internal
webcoreName: useGPUProcessForMedia
IsInAppBrowserPrivacyEnabled:
type: bool
defaultValue: false
humanReadableName: "In-App Browser Privacy"
humanReadableDescription: "Enable In-App Browser Privacy"
webcoreBinding: RuntimeEnabledFeatures
category: internal
DialogElementEnabled:
type: bool
defaultValue: false
humanReadableName: "Dialog Element"
humanReadableDescription: "Enable the Dialog Element"
webcoreBinding: RuntimeEnabledFeatures
category: experimental
# Deprecated
ICECandidateFilteringEnabled:
type: bool
defaultValue: true
MockCaptureDevicesEnabled:
type: bool
defaultValue: DEFAULT_MOCK_CAPTURE_DEVICES_ENABLED
condition: ENABLE(MEDIA_STREAM)
MediaCaptureRequiresSecureConnection:
type: bool
defaultValue: true
condition: ENABLE(MEDIA_STREAM)