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Special Settings

Compatibility polyfills, bridges, and other specialized toggles. This card collects the specialized WebViewConfig options.

Where: the Special settings card in the Edit Common Config editor.

Polyfills & bridges

  • Clipboard polyfillenableClipboardPolyfill.
  • Notification polyfill — Web Notification support (enableNotificationPolyfill).
  • Orientation polyfillenableOrientationPolyfill.
  • Compat polyfills — a bundle of compatibility shims (enableCompatPolyfills).
  • Native bridge — expose a native bridge with capability gates (enableNativeBridge, nativeBridgeCapabilities).
  • Print bridge — intercept window.print() and PDF output to the Android print framework (enablePrintBridge).
  • Share bridgeenableShareBridge.
  • Zoom polyfillenableZoomPolyfill.

Media & content

  • Media autoplay — with scope (mediaAutoplayEnabled, mediaAutoplayScope: video-only, …).
  • Image repair — fix broken images (enableImageRepair).
  • Scroll memory — remember scroll position (enableScrollMemory).
  • Back-state preservationenableBackStatePreservation.
  • Blob download interception — with scope and size threshold (enableBlobDownloadInterception, blobInterceptThresholdMb).

JavaScript & windows

  • JS can open windows — with policy (javaScriptCanOpenWindows, jsOpenWindowsPolicy).
  • Prime user activation — synthesize a user gesture, with mode and timing (primeUserActivation, primeUserActivationMode, primeUserActivationTiming).
  • Base64 deep links — decode base64 deep links, gesture-only or always (decodeBase64DeepLinks, decodeBase64Mode).

Security & misc

  • Cross-origin isolationenableCrossOriginIsolation.
  • Anti-capture — block screen capture (antiCapture).
  • File access from file URLsallowFileAccessFromFileURLs, allowUniversalAccessFromFileURLs.
  • Error page — custom error page config (errorPageConfig).
  • Performance optimizationperformanceOptimization.
  • PWA offline — offline cache strategy (pwaOfflineEnabled, pwaOfflineStrategy).
  • Floating back buttonshowFloatingBackButton.
  • Keyboard adjust modekeyboardAdjustMode (resize, …).
  • Hide URL previewhideUrlPreview.

Notes

  • These are power-user toggles; most apps leave them at defaults.

Released under the Unlicense.