web-feature: Fullscreen API

The fullscreen API makes a specific element fill the whole screen and hides most browser UI.

WKWebView

macOS

*

iOS

*

Android WebView

Android

*

WebView2

Windows

*

WPE MiniBrowser

Linux

2026-10

Servo

Android

2026-10

ArkWeb

HarmonyOS

*

Chrome Browser

Android

71

Safari Browser

iOS

*

Notes

Unsupported keys in WebViews

  • WKWebView:
    api.Document.exitFullscreen.returns_promise api.Element.requestFullscreen.returns_promise

WebViews are not part of Baseline Baseline logo We do web-features computation using web-features-plus-webview

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This feature was last updated on October 10, 2026.