Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Note: This feature is available in Web Workers.
The error event of the Notification interface fires when something goes wrong with a Notification (in many cases an error preventing the notification from being displayed.)
Use the event name in methods like addEventListener(), or set an event handler property.
addEventListener("error", (event) => { })
onerror = (event) => { }A generic Event.