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

The has property of the MediaKeyStatusMap interface returns a Boolean, asserting whether a value has been associated with the given key.


var boolean = mediaKeyStatusMap(key)


The key whose value you want returned




Specification Status Comment
Encrypted Media Extensions Recommendation Initial definition.

Browser Compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 42.0 ? ? 29 ?
Feature Android Android Webview Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support 43.0 ? ? ? 29 ? 42.0

Document Tags and Contributors

 Contributors to this page: bunnybooboo, jpmedley
 Last updated by: bunnybooboo,