The messageerror
event is fired on a BroadcastChannel
object when a message that can't be deserialized arrives on the channel.
The messageerror
event is fired on a BroadcastChannel
object when a message that can't be deserialized arrives on the channel.
Use the event name in methods like addEventListener()
, or set an event handler property.
js
addEventListener("messageerror", (event) => { }) onmessageerror = (event) => { }
A MessageEvent
. Inherits from Event
.
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 a ServiceWorker
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).
This code uses addEventListener
to listen for messages and errors:
js
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:
js
const channel = new BroadcastChannel("example-channel"); channel.onmessage = (event) => { received.textContent = event.data; }; channel.onmessageerror = (event) => { console.log(event); };
Specification |
---|
HTML Standard # event-messageerror |
HTML Standard # handler-broadcastchannel-onmessageerror |
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 | 15.4 | 60 | 60 | 57 | 47 | 15.4 | 8.0 |
message
.
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/BroadcastChannel/messageerror_event