This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The RTCDataChannel.onerror
property is an EventHandler
which specifies a function to be called when the error
event is received. When an error occurs on the data channel, the function receives as input an ErrorEvent
object describing the error which occurred.
RTCDataChannel.onerror = function;
A function which the browser will call to handle the error
event when it occurs on the data channel. This function receives as its only input an ErrorEvent
object describing the event which was received. That event object, in turn, describes the error that took place.
In the example below, a data channel is established, and an onerror
handler is added to it. The error handler passes information about the error to a UI library's alert box function to present an error message to the user.
let pc = new RTCPeerConnection(); let dc = pc.createDataChannel("PlayerControl"); dc.onerror = function(event) { myUILibrary.doAlertBox({ 'Network Error', // Alert title 'The error "' + event.message + '" occurred while handling player control network messages.', event.filename, event.lineno, event.colno }); } /* ... */
Specification | Status | Comment |
---|---|---|
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCDataChannel.onerror' in that specification. | Working Draft | Initial specification. |
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | 29 | 24 (24) [1] | No support | (Yes) | ? |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|
Basic support | ? | 29 | 24.0 (24) [1] | No support | No support | No support | (Yes) |
[1] The interface is called DataChannel
and not RTCDataChannel
in Firefox. However, a binding has been in place since Firefox 24 so that either name will work.
error
event and its type, ErrorEvent
.
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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/RTCDataChannel/onerror