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 addEventListener():

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

Alternatively, assign to the event handler property of the interface:

js
onmessage = (event) => { }

Event type

A MediaKeyMessageEvent. Inherits from Event.

Event MediaKeyMessageEvent

Specifications

Specification
Encrypted Media Extensions
# dom-mediakeysession-onmessage

Browser compatibility