The WebSocket.protocol
read-only property returns the name of the sub-protocol the server selected; this will be one of the strings specified in the protocols
parameter when creating the WebSocket
object, or the empty string if no connection is established.
Syntax
var protocol = aWebSocket.protocol;
Value
A DOMString
.
Specifications
Specification | Status | Comment |
---|---|---|
HTML Living StandardThe definition of 'WebSocket: protocol' in that specification. | Living Standard | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
protocol
|
Chrome
Full support Yes |
Edge
Full support 12 |
Firefox
Full support Yes |
IE
? |
Opera
Full support Yes |
Safari
Full support Yes |
WebView Android
Full support Yes |
Chrome Android
Full support Yes |
Firefox Android
Full support Yes |
Opera Android
Full support Yes |
Safari iOS
Full support Yes |
Samsung Internet Android
Full support Yes |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown
WebSocket.protocol by Mozilla Contributors is licensed under CC-BY-SA 2.5.