This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage 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 specification changes.

The MediaKeySession.load() method returns a Promise that resolves to a boolean value after loading data for a specified session object.


mediaKeySession.load(sessionId).then(function(booleanValue) { ... });


A unique string generated by the content decription module for the current media object and its associated keys or licenses.

Return value

A Promise that resolves to a boolean indicating whether the load succeeded or failed.


Specification Status Comment
Encrypted Media Extensions
The definition of 'load()' in that specification.
Working Draft Initial definition

Browser compatibility

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

Document Tags and Contributors

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