StorageManager.persist()
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The persist() method of the
StorageManager interface requests permission to use persistent storage,
and returns a Promise that resolves to true if permission
is granted and box mode is persistent, and false otherwise.
Syntax
navigator.storage.persist().then(function(persistent) { /* ... */ })
Parameters
None.
Return value
Example
if (navigator.storage && navigator.storage.persist)
navigator.storage.persist().then(function(persistent) {
if (persistent)
console.log("Storage will not be cleared except by explicit user action");
else
console.log("Storage may be cleared by the UA under storage pressure.");
});
Specifications
| Specification |
|---|
| Storage Standard # ref-for-dom-storagemanager-persist |
Browser compatibility
BCD tables only load in the browser