messageerror

The messageerror event fires on a target, such as a window or worker, when an incoming message cannot be deserialized. This event can fire for many types of messages, such as cross-document messages or broadcast channel messages.

Baseline Status: Achieved Widely Available on Sep 27, 2025 (Cross-browser Newly Available since Mar 27, 2023).

Desktop Browser Engine Support

Google Chrome

60

Supported

Mozilla Firefox

57

Supported

Apple Safari

16.4

Supported

Microsoft Edge

18

Supported

Mobile Browser Engine Support

Chrome Android

60

Firefox Android

57

Safari iOS

16.4

Specifications and References

Specification ↗ Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

api.DedicatedWorkerGlobalScope.messageerror_event ↗ api.MessagePort.messageerror_event ↗ api.ServiceWorkerContainer.messageerror_event ↗ api.ServiceWorkerGlobalScope.messageerror_event ↗ api.Window.messageerror_event ↗ api.Worker.messageerror_event ↗