The messageerror
event is fired on a BroadcastChannel
object when a message that can't be deserialized arrives on the channel.
BroadcastChannel: messageerror event
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener('messageerror', event => { }) onmessageerror = event => { }
Event type
A MessageEvent
. Inherits from Event
.
Event properties
In addition to the properties listed below, properties from the parent interface, Event
, are available.
-
data
Read only -
The data sent by the message emitter.
-
origin
Read only -
A string representing the origin of the message emitter.
-
lastEventId
Read only -
A string representing a unique ID for the event.
-
source
Read only -
A message event source, which is either a WindowProxy, a
MessagePort
, or aServiceWorker
object representing the message emitter. -
ports
Read only -
An array of
MessagePort
objects representing the ports associated with the channel the message is being sent through (where appropriate, e.g. in channel messaging or when sending a message to a shared worker).
Examples
This code uses addEventListener
to listen for messages and errors:
const channel = new BroadcastChannel('example-channel'); channel.addEventListener('message', event => { received.textContent = event.data; }); channel.addEventListener('messageerror', event => { console.error(event); });
The same, but using the onmessage
and onmessageerror
event handler properties:
const channel = new BroadcastChannel('example-channel'); channel.onmessage = event => { received.textContent = event.data; }; channel.onmessageerror = event => { console.log(event); };
Specifications
Specification |
---|
HTML Standard # event-messageerror |
HTML Standard # handler-broadcastchannel-onmessageerror |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
messageerror_event |
60
|
79
|
57
|
No
|
47
|
No
See
bug 171216.
|
60
|
60
|
57
|
47
|
No
See
bug 171216.
|
8.0
|
See also
- Related events:
message
.
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/BroadcastChannel/messageerror_event