figure out how to enable web sockets on ec2

[therewasaguy]

socketio/socket.io#1942

[therewasaguy]

seems like we need to add this to nginx configuration, @jdiedrick think you could check it out?

location /wsapp/ {
    proxy_pass http://wsbackend;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
}

via https://www.nginx.com/blog/websocket-nginx/

another config example here
socketio/socket.io#1942 (comment)

[therewasaguy]

Not sure why this started working, only if you go to http://www.xn--vg8hjj.ws/mapb, but not without the www