ProxyRequests Off
ProxyPreserveHost On

# Socket.IO polling
ProxyPass        "/socket.io/"  "http://127.0.0.1:8081/socket.io/"
ProxyPassReverse "/socket.io/"  "http://127.0.0.1:8081/socket.io/"

# Socket.IO websocket upgrade
RewriteEngine On
RewriteCond %{REQUEST_URI}  ^/socket\.io/ [NC]
RewriteCond %{HTTP:Upgrade} =websocket   [NC]
RewriteRule /(.*)           ws://127.0.0.1:8081/$1 [P,L]

# Print server (your Node 8082) behind /feed/
ProxyPass        "/feed/"  "http://127.0.0.1:8082/"
ProxyPassReverse "/feed/"  "http://127.0.0.1:8082/"