WebSocket: protocol property
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.
Value
A string.
Specifications
| Specification |
|---|
| WebSockets Standard # ref-for-dom-websocket-protocol① |
Browser compatibility
| desktop | mobile | server | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
protocol | |||||||||||||