Web/API/RTCDataChannel/negotiated

The read-only RTCDataChannel property negotiated indicates whether the RTCDataChannel's connection was negotiated by the Web app (true) or by the WebRTC layer (false). The default is false.

See Creating a data channel in Using WebRTC data channels for further information about this property.

Syntax

var negotiated = aDataChannel.negotiated;

Value

true if the RTCDataChannel's connection was negotiated by the Web app itself; false if the negotiation was handled by the WebRTC layer. The default is false.

Example

The code snippet below checks the value of negotiated; if it's true, a function called shutdownRemoteChannel() is called with the channel's id; presumably this would be implemented to transmit a shutdown signal to the remote peer prior to terminating the connection.

if (dataChannel.negotiated) {
  shutdownRemoteChannel(dataChannel.id);
}

Specifications

Specification	Status	Comment
WebRTC 1.0: Real-time Communication Between BrowsersThe definition of 'RTCDataChannel.negotiated' in that specification.	Candidate Recommendation	Initial specification.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`negotiated` Experimental'	Chrome Full support 56	Edge Full support ≤79	Firefox Full support 68	IE No support No	Opera Full support 43	Safari No support No	WebView Android Full support 56	Chrome Android Full support 56	Firefox Android Full support 68	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.