Can't connect websocket server

[Vortexxxx]

I'm newbie for node.js

I run node socketserver/server.js, it's seem running good, I have tried to post a piece of data to port 8080, which is successful

but when I try use websocket connect it , always fail：

/ # node socketserver/server.js
   info  - socket.io started
   debug - destroying non-socket.io upgrade
   debug - destroying non-socket.io upgrade
   debug - destroying non-socket.io upgrade

I not understand what happen