(newbie) how to connect to "wss://echo.websocket.org"

i'm newbie.

i test with "http://www.websocket.org/demos/echo/"

i'd like to connect to "wss://echo.websocket.org".

i used "Clientchat" demo program.

i attached screen shot.



I set property like belows..

--------- property ----------
host: echo.websocket.org
default port : 80
ssl : 443
using TLS : (true)
------------------------------
but i faced error. ("#exception:Error connecting with SSL.
EOF was observed that violates the protocol"


please, let me know what is my wrong.

Thank you so much.