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.
The context read-only property of the SharedStorageWorkletGlobalScope interface contains a WorkletSharedStorage object instance, which represents the shared storage for a particular origin as exposed to a worklet context.
A WorkletSharedStorage object instance.
// ab-testing-worklet.js
class SelectURLOperation {
async run(urls, data) {
// Read the user's experiment group from shared storage
const experimentGroup = await this.sharedStorage.get("ab-testing-group");
// Return the group number
return experimentGroup;
}
}
register("ab-testing", SelectURLOperation);
| 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 |
© 2005–2025 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/SharedStorageWorkletGlobalScope/sharedStorage