MediaKeySession: message event
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The message event of the
MediaKeySession interface fires when a message is generated by the
content decryption module.
Syntax
Use the event name in methods like addEventListener(), or set an event handler property.
addEventListener("message", (event) => { })
onmessage = (event) => { }
Event type
A MediaKeyMessageEvent. Inherits from Event.
Event properties
MediaKeyMessageEvent.messageRead only-
Returns an
ArrayBufferwith a message from the content decryption module. Messages vary by key system. MediaKeyMessageEvent.messageTypeRead only-
Indicates the type of message. May be one of
license-request,license-renewal,license-release, orindividualization-request.
Specifications
| Specification |
|---|
| Encrypted Media Extensions # dom-mediakeysession-onmessage |
Browser compatibility
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