web-feature: Visual viewport API

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The visualViewport API provides a way to query and modify the user-visible viewport of a web page.

WKWebView

macOS

*

iOS

*

Android WebView

Android

*

WebView2

Windows

*

WPE MiniBrowser

Linux

2026-07

Servo

Android

2026-07

ArkWeb

HarmonyOS

*

Chrome Browser

Android

61

Safari Browser

iOS

13