web-feature: Storage manager

baseline logo Widely available in browsers but not in WebViews

The navigator.storage API provides information about the availability and persistence of the data that a site stores on the device, by using APIs such as the Cache API or the IndexedDB API.

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

17

Notes

Unsupported keys in WebViews

  • Android WebView:
    api.Permissions.permission_persistent-storage

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.