This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use 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 spec changes.
The read-only property RTCDataChannel.protocol returns a DOMString containing the name of the subprotocol in use. If none, it returns "".
SyntaxEdit
var subProtocol = dataChannel.protocol;
ExampleEdit
var pc = new RTCPeerConnection();
var dc = pc.createDataChannel("my channel");
console.log("Channel subprotocol: " + dc.protocol);SpecificationsEdit
| Specification | Status | Comment |
|---|---|---|
| WebRTC 1.0: Real-time Communication Between Browser The definition of 'RTCDataChannel.id' in that specification. |
Working Draft | Initial specification. |
Browser compatibilityEdit
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) [1] | Not supported | (Yes) | ? |
[1] The interface is called DataChannel and not RTCDataChannel