使用UnityWebSocket库进行连接，服务端有收到Socket并提示Socket连接建立，但客户端的Socket状态仍然为Connecting

[wszhhx]

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[wszhhx]

做了几组对照试验：
1.用examples的Client连接skynet正常建立连接
2.本地客户端连接用Java搭建的服务端，正常建立socket连接
3.本地客户端连接skynet的example服务器，情况如本issue标题所示
4.用C#的System.Net.WebSocket库连接skynet的example服务器，情况如本issue标题所示
5.服务端调用socket.close_fd()时，客户端的socket状态会立即从connecting变成close

Ip地址与Port没问题
防火墙出站入战也没问题
抓包也正常发现了三次握手的包

然道是因为websocket不兼容？求大牛明示~
这是用UnityWebSocket库连接时，skynet的example服务器报的Log，内容与用skynet的client连接报的Log一样，看服务端这边的Log是无异常，区别就是客户端这里socket状态永远是Connecting。

[wszhhx]

客户端调用UnityWebSocket代码：
public void Connect(string _ip, int _port)
{
if (m_socket != null)
{
if (m_socket.ReadyState == WebSocketState.Open
|| m_socket.ReadyState == WebSocketState.Connecting
|| m_socket.ReadyState == WebSocketState.Closing)
{
return;
}
}
m_socket = new WebSocket($"ws://{_ip}:{_port}");
m_socket.OnOpen += OnConnected;
m_socket.OnError += OnConnectFail;
m_socket.OnMessage += OnReceiveMessage;
m_socket.OnClose += OnClosed;
m_socket.ConnectAsync();
}