在将所有websocket数据发送到客户端之前，ASP.NET关闭连接

I wrote a simple asp.net websocket handler as a gateway between a remote data processing server and clients. I tested in my local machine (win8, IIS EXPRESS 8) and everything worked well. But in azure website, ASP.NET closes connection before sending all websocket data to client.I wrote a simple asp.net websocket handler as a