The locks property of the StorageAccessHandle interface returns an unpartitioned session LockManager object if access was granted, and throws a SecurityError DOMException otherwise.
A LockManager object.
document.requestStorageAccess({ locks: true }).then(
(handle) => {
console.log("locks access granted");
handle.locks.request("foo", (lock) => "ok");
},
() => {
console.log("locks access denied");
},
);Note: See Using the Storage Access API for a more complete example.