web-feature: Content Index

The Content Index API allows developers to register their offline enabled content with the browser.

WKWebView

macOS

*

iOS

*

Android WebView

Android

*

WebView2

Windows

*

WPE MiniBrowser

Linux

2026-06

Servo

Android

2026-06

Chrome Browser

Android

84

Safari Browser

iOS

*

Notes

Support data provided by: BCD logo

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This feature was last updated on June 13, 2026.