nginx and proxying WebSockets - http

Question

I'm trying to proxy WebSocket + HTTP traffic with nginx.
I have read this: http://nginx.org/en/docs/http/websocket.html
My config looks like:
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
gzip on;
map $http_upgrade $connection_upgrade {
default upgrade;
'' close;
}
server {
listen 80;
server_name ourapp.com;
location / {
proxy_pass http://127.0.0.1:100;
proxy_http_version 1.1;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
}
}
}
I have 2 problems:
1) The connection closes once a minute.
2) I want to run both HTTP and WS on the same port. The application works fine locally, but if I try to put HTTP and WS on the same port and set this nginx proxy, I get this:
WebSocket connection to 'ws://ourapp.com/ws' failed: Unexpected response code: 200
Loading the app (HTTP) seems to work fine, but WebSocket connection fails.

Answer 1

Problem 1: As for the connection dying once a minute, I realized that it's nginx timeout variable. I can either make our app to ping once in a while or increase the timeout. I'm not sure if I should set it as 0, I decided to just ping once a minute and set the timeout to 90 seconds. (keepalive_timeout)
Problem 2: Connectivity issues arose when I used CloudFlare CDN. Disabling CloudFlare acceleration solved the problem.
Alternatively I could create a subdomain and set it as "unaccelerated" and use that for WS.