expiration

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

The MediaKeySession.expiration read-only property returns the time after which the keys in the current session can no longer be used to decrypt media data, or NaN if no such time exists. This value is determined by the CDM and measured in milliseconds since January 1, 1970, UTC. This value may change during a session lifetime, such as when an action triggers the start of a window.

Syntax

​var expirationTime = mediaKeySessionObj.expiration;

Specifications

Specification Status Comment
Encrypted Media Extensions
The definition of 'expiration' in that specification.
Recommendation Initial definition

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support4213 ? ? Yes ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support4342 Yes ? Yes ?4.0

Document Tags and Contributors

 Contributors to this page: fscholz, libbymc, Sebastianz, meljag, jpmedley
 Last updated by: fscholz,