This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
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.
Syntax
RTCDataChannel.onerror = function;
Value
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.
Example
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 }); } /* ... */
Specifications
Specification | Status | Comment |
---|---|---|
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCDataChannel.onerror' in that specification. |
Candidate Recommendation | Initial specification. |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
onerror | Chrome Full support 56 | Edge Full support ≤79 | Firefox No support No | IE No support No | Opera Full support 43 | Safari No support No | WebView Android Full support 56 | Chrome Android Full support 56 | Firefox Android No support No | Opera Android Full support 43 | Safari iOS No support No | Samsung Internet Android Full support 6.0 |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
See also
- WebRTC
- The
error
event and its type,ErrorEvent
.