This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

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.
Recommendation Initial definition

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Chrome Full support 42Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android Full support 43Chrome Android Full support 42Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android Full support 4.0


Full support  
Full support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

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