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MediaKeySession: expiration property

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.

Value

A number or NaN.

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
expiration 42 13 38 No 29 12.1 43 42 38 29 12.2 4.0

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https://developer.mozilla.org/en-US/docs/Web/API/MediaKeySession/expiration