Syntax
Use the event name in methods like addEventListener(), or set an event handler property.
js
addEventListener("messageerror", (event) => { })
onmessageerror = (event) => { }
Event type
A MessageEvent. Inherits from Event.
Examples
Listen for messageerror using addEventListener():
js
// worker.js
self.addEventListener("messageerror", (event) => {
self.postMessage("Error receiving message");
console.error(event);
});
The same, but using the onmessageerror event handler property:
js
// worker.js
self.onmessageerror = (event) => {
self.postMessage("Error receiving message");
console.error(event);
};
Specifications
| Specification |
|---|
| HTML # event-messageerror |
| HTML # handler-messageeventtarget-onmessageerror |