web-feature: window.external

The window.external.AddSearchProvider() and window.external.IsSearchProviderInstalled() do nothing. Historically, they added external search providers to the browser.

WKWebView

macOS

*

iOS

*

Android WebView

Android

*

WebView2

Windows

*

Chrome Browser

Android

18

Safari Browser

iOS

*

Notes

Support data provided by: BCD logo

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This feature was last updated on November 10, 2025.