SharedWorker: error event

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


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

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

onerror = (event) => {};

Event type

A generic Event.


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

const mySharedWorker = new SharedWorker("shared-worker.js");

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


HTML Standard
# handler-abstractworker-onerror

Browser compatibility

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