The onmessageerror event handler of the Worker interface is an EventListener, called whenever an MessageEvent of type messageerror is fired on the Worker instance — that is, when it receives a message that cannot be deserialized.

Note: This feature is available in Web Workers.


Worker.onmessageerror = function() { ... };


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

Browser compatibility

BCD tables only load in the browser

See also