Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The StorageManager
interface of the the Storage API provides an interface for managing persistance permissions and estimating available storage. You can get a reference to this interface using either navigator.storage
or WorkerNavigator.storage
.
Methods
StorageManager.estimate()
Secure context- Returns a
Promise
that resolves to aStorageEstimate
object containing usage and quota numbers for your origin. StorageManager.persist()
Secure context- Returns a
Promise
that resolves totrue
if the user agent is able to persist your site's storage. StorageManager.persisted()
Secure context- Returns a
Promise
that resolves totrue
if persistence has already been granted for your site's storage.
Specifications
Specification | Status | Comment |
---|---|---|
Storage The definition of 'StorageManger' in that specification. |
Living Standard | Initial definition. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
StorageManager | Chrome Full support 48 | Edge Full support ≤79 | Firefox
Full support
57
| IE ? | Opera Full support Yes | Safari ? | WebView Android Full support 48 | Chrome Android Full support 48 | Firefox Android
Full support
51
| Opera Android Full support Yes | Safari iOS ? | Samsung Internet Android Full support 5.0 |
estimate | Chrome Full support 52 | Edge Full support ≤79 | Firefox Full support 51 | IE ? | Opera Full support Yes | Safari ? | WebView Android Full support 52 | Chrome Android Full support 52 | Firefox Android Full support 51 | Opera Android Full support Yes | Safari iOS ? | Samsung Internet Android Full support 6.0 |
persist | Chrome
Full support
52
| Edge Full support ≤79 | Firefox Full support 55 | IE ? | Opera Full support Yes | Safari ? | WebView Android
Full support
52
| Chrome Android
Full support
52
| Firefox Android Full support 55 | Opera Android Full support Yes | Safari iOS ? | Samsung Internet Android
Full support
6.0
|
persisted | Chrome
Full support
52
| Edge Full support ≤79 | Firefox Full support 55 | IE ? | Opera Full support Yes | Safari ? | WebView Android
Full support
52
| Chrome Android
Full support
52
| Firefox Android Full support 55 | Opera Android Full support Yes | Safari iOS ? | Samsung Internet Android
Full support
6.0
|
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown
- See implementation notes.
- See implementation notes.
- User must explicitly enable this feature.
- User must explicitly enable this feature.
- Uses a non-standard name.
- Uses a non-standard name.