The onerror property of the SharedWorker interface represents an event handler, that is a function to be called when the error event occurs.


mySharedWorker.onerror = function(event) { ... };


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

var mySharedWorker = new SharedWorker('shared-worker.js');

mySharedWorker.onerror = function(event) {
  console.log('There is an error with your worker!');


Specification Status Comment
HTML Living Standard
The definition of 'onerror' in that specification.
Living Standard

Browser compatibility

BCD tables only load in the browser