Worker: error event

Note: This feature is available in Web Workers, except for Service Workers.

The error event of the Worker interface fires when an error occurs in the worker.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

js
addEventListener("error", (event) => {});

onerror = (event) => {};

Event type

A generic Event.

Example

The following code snippet creates a Worker object using the Worker() constructor and sets up an onerror handler on the resulting object:

js
const myWorker = new Worker("worker.js");

myWorker.onerror = (event) => {
  console.log("There is an error with your worker!");
};

Specifications

Specification
HTML
# handler-abstractworker-onerror

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
error event

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
Partial support
Partial support