Wamp server on Heroku Hosting

Question

I am building a mobile application that uses the PubSub server using wamp protocol.

My server is written in AutobahnPython and my client is using AutobahnAndroid.

I want to host my Wamp server on Heroku, so I can enjoy free hosting while developing

without having to maintain Dynamic IP changes or having my computer run all the time.

The problem is when I upload my wamp server

just after the DEBUG log for “opening handshake received”

i get “fail connection [code = 3, reason = WebSockets connection lost” (in DEBUG log).

of course, no further usage of the connection object can be made after this error.

Also, I have tried to connect the server with browser wamp client, which

got “Error during WebSocket handshake: Sec-WebSocket-Protocol mismatch”

I have tested this server on my local network and it is working perfectly,

I have also configured port forwarding so I can test the connection from the mobile network

and it also worked.

Can someone please advise me how to further investigate this issue?

I would also like to know whether someone has successfully hosted

his wamp server on Heroku.

P.S.

I have enabled WebSockets lab on Heroku, and I am using their PORT environment variable

for the wamp server, and the client is configured to connect using port 80 (like Heroku's tutorial says)

thanks,