I've posted the details here: http://stackoverflow.com/questions/36091956/mqtt-over-websocket-request-x-amzn-errortype-forbiddenexception
But it seems possible. We connect to AWS via 443 port (SSL), send the connection request using websocket protocol over http and them use the websocket connection to trade mqtt packages.
Does some one tried this path? Is there something I am missing?
Thanks