WindowSharedStorage
Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see thecompatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
TheWindowSharedStorage interface of theShared Storage API represents the shared storage for a particular origin within a standard browsing context.
WindowSharedStorage is accessed viaWindow.sharedStorage.
Instance properties
workletDeprecatedContains the
SharedStorageWorkletinstance representing the shared storage worklet for the current origin.SharedStorageWorkletincludes theaddModule()method, which is used to add a module to the shared storage worklet.
Instance methods
WindowSharedStorage inherits properties from its parent interface,SharedStorage.
run()DeprecatedExecutes aRun output gate operation that has been registered in a module added to the
SharedStorageWorkletof the current origin.selectURL()DeprecatedExecutes aURL Selection output gate operation that has been registered in a module added to the
SharedStorageWorkletof the current origin.
Examples
// Randomly assigns a user to a group 0 or 1function getExperimentGroup() { return Math.round(Math.random());}async function injectContent() { // Add the module to the shared storage worklet await window.sharedStorage.worklet.addModule("ab-testing-worklet.js"); // Assign user to a random group (0 or 1) and store it in shared storage window.sharedStorage.set("ab-testing-group", getExperimentGroup(), { ignoreIfPresent: true, }); // Run the URL selection operation const fencedFrameConfig = await window.sharedStorage.selectURL( "ab-testing", [ { url: `https://your-server.example/content/default-content.html` }, { url: `https://your-server.example/content/experiment-content-a.html` }, ], { resolveToConfig: true, }, ); // Render the chosen URL into a fenced frame document.getElementById("content-slot").config = fencedFrameConfig;}injectContent();See theShared Storage API landing page for a walkthrough of this example and links to other examples.