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Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Это экспериментальная технология
Так как спецификация этой технологии ещё не стабилизировалась, смотрите таблицу совместимости по поводу использования в различных браузерах. Также заметьте, что синтаксис и поведение экспериментальной технологии может измениться в будущих версиях браузеров, вслед за изменениями спецификации.
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
StorageEstimateobject containing usage and quota numbers for your origin. StorageManager.persist()Secure context- Returns a
Promisethat resolves totrueif the user agent is able to persist your site's storage. StorageManager.persisted()Secure context- Returns a
Promisethat resolves totrueif persistence has already been granted for your site's storage.
| Specification | Status | Comment |
|---|---|---|
| Storage Определение 'StorageManger' в этой спецификации. |
Живой стандарт | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Microsoft Edge | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 55.0 | 51 (51)[1] | ? | ? | 42 | ? |
estimate() |
61.0 | 51 (51)[1] | ||||
persist() and persisted() |
55.0 | 55 (55)[2] |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|
| Basic support | Нет | 55.0 | 51.0 (51)[1] | ? | 42 | ? | 55.0 |
estimate() |
61.0 | 61.0 | |||||
persist() and persisted() |
55.0 | 55.0 |
[1] Firefox 51 introduced NavigatorStorage, navigator.storage, and the StorageManager.estimate() method. These are enabled by default in nightly builds but disabled by default in all other builds. You can enable these features by setting the preference dom.storageManager.enabled to true.
[2] Firefox 55 introduced StorageManager.persist() and StorageManager.persisted() methods. Users can also manage persistent-storage data in Preferences "Privacy and Security" -> "Site data". These are enabled by default in nightly builds but disabled by default in all other builds. You can enable these features by setting the preference dom.storageManager.enabled and browser.storageManager.enabled to true.