Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The keystatuseschange event of the MediaKeySession API fires when there has been a change in the keys or their statuses within a session.
Use the event name in methods like addEventListener(), or set an event handler property.
addEventListener("keystatuseschange", (event) => { })
onkeystatuseschange = (event) => { }An ExtendableEvent. Inherits from Event.