This feature is not Baseline because it does not work in some of the most widely-used browsers.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The global read-only sharedStorage property returns the WindowSharedStorage object for the current origin. This is the main entry point for writing data to shared storage using the Shared Storage API.
Note: sharedStorage is not available inside workers. It is implemented by Window and is also available in shared storage worklets (see SharedStorageWorkletGlobalScope.sharedStorage, which returns WorkletSharedStorage).
A WindowSharedStorage object instance.
window.sharedStorage
.set("ab-testing-group", "0")
.then(() => console.log("Value saved to shared storage"));
| Specification |
|---|
| Shared Storage API> # dom-window-sharedstorage> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
sharedStorage |
126 | 126 | No | 112 | No | 126 | No | 83 | No | 28.0 | 126 | No |
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https://developer.mozilla.org/en-US/docs/Web/API/Window/sharedStorage