web-feature: Data URLs

baseline logo Widely available in browsers but not in WebViews

Data URLs are URLs that start with the data: scheme and which directly contain data rather than point to remote resources.

WKWebView

macOS

*

iOS

*

Android WebView

Android

*

WebView2

Windows

*

WPE MiniBrowser

Linux

2026-07

Servo

Android

2026-07

ArkWeb

HarmonyOS

*

Chrome Browser

Android

18

Safari Browser

iOS

≤2

Notes

Unsupported keys in WebViews

  • Android WebView:
    http.data-url.top_level_navigation_blocked

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 July 04, 2026.