fix

server/websocket/internal/logic/datatransferlogic.go

@@ -124,6 +124,7 @@ func (l *DataTransferLogic) DataTransfer(w http.ResponseWriter, r *http.Request)
 	//有token是正常用户，无则是白板用户，也可以连接
 	if secWebsocketProtocol != "" {
 		s := strings.Split(secWebsocketProtocol, ",")
+		fmt.Println("子协议传输值:", s)
 		if len(s) != 2 {
 			w.Write([]byte("invalid secWebsocketProtocol param"))
 			return