This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.
The MediaKeySystemConfiguration.persistentState read-only property indicates whether the ability to persist state is required.
var persistentState = mediaSystemConfiguration.persistentSTate;
| Specification | Status | Comment |
|---|---|---|
| Encrypted Media Extensions The definition of 'persistentState' in that specification. | Working Draft | Initial definition |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 42.0 | ? | ? | ? | ? |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | Not supported | 43.0 | ? | ? | ? | ? | ? | 42.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/MediaKeySystemConfiguration/persistentState