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
BCD tables only load in the browser