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StorageManager

Baseline

Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since December 2021.

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Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is available in Web Workers.

The StorageManager interface of the Storage API provides an interface for managing persistence permissions and estimating available storage. You can get a reference to this interface using either navigator.storage or WorkerNavigator.storage.

Instance methods

StorageManager.estimate(): Returns a Promise that resolves to an object containing usage and quota numbers for your origin.
StorageManager.getDirectory(): Used to obtain a reference to a FileSystemDirectoryHandle object allowing access to a directory and its contents, stored in the origin private file system. Returns a Promise that fulfills with a FileSystemDirectoryHandle object.
StorageManager.persist(): Returns a Promise that resolves to true if the user agent is able to persist your site's storage.
StorageManager.persisted(): Returns a Promise that resolves to true if persistence has already been granted for your site's storage.

Specifications

Specification
Storage # storagemanager

Browser compatibility

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This page was last modified on Mar 6, 2024 by MDN contributors.

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