Websockets not working

I found nifty little webapp based on the TV show Jeopardy. It uses websockets which I can't seem to get running.

The code for the game can be found here: https://github.com/tpavlek/Jeopardy

I'm pretty sure I have all the mods I need enabled, here's a list of installed ones.

access_compat.load
alias.conf
alias.load
auth_basic.load
authn_core.load
authn_file.load
authz_core.load
authz_host.load
authz_user.load
autoindex.conf
autoindex.load
deflate.conf
deflate.load
dir.conf...

Websockets not working

from Apache https://ift.tt/2zNW4hV
via IFTTT