WorkerGlobalScope: error event

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

Syntax

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

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

onerror = event => { };

A generic Event.

The following code snippet shows an onerror handler set inside a worker:

self.onerror = function() {
  console.log('There is an error inside your worker!');
}

The same snippet, but using addEventListener():

self.addEventListener('error', function() {
  console.log('There is an error inside your worker!');
});

Specification
HTML Standard # handler-workerglobalscope-onerror

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