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 Standard The 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.
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