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MediaKeySession: message event

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.

js

addEventListener("message", (event) => {});

onmessage = (event) => {};

Event type

Event properties

MediaKeyMessageEvent.message Read only

Returns an ArrayBuffer with a message from the content decryption module. Messages vary by key system.

MediaKeyMessageEvent.messageType Read only

Indicates the type of message. May be one of license-request, license-renewal, license-release, or individualization-request.

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
message_event 55
42–55The onmessage event handler property is not supported.
79 52 No 42
29–42The onmessage event handler property is not supported.
12.1 55
43–55The onmessage event handler property is not supported.
55
42–55The onmessage event handler property is not supported.
52 42
29–42The onmessage event handler property is not supported.
12.2 6.0
4.0–6.0The onmessage event handler property is not supported.

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