NavigatorStorage.storage read-only property returns the singleton
StorageManager object used to access the overall storage capabilities of the browser for the current site or app. The returned object lets you examine and configure persistence of data stores and learn approximately how much more space your browser has available for local storage use.
var storageManager = navigator.storage;
StorageManager object you can use to maintain persistence for stored data, as well as to determine roughly how much room there is for data to be stored.
The definition of 'navigator.storage' in that specification.
|Living Standard||Initial definition.|
|Feature||Android webview||Chrome for Android||Edge mobile||Firefox for Android||Opera Android||iOS Safari||Samsung Internet|
1. From version 51: this feature is behind the
dom.storageManager.enabled preference (needs to be set to
true). To change preferences in Firefox, visit about:config.