Detecting visitor IP about prelaunchr HOT 4 OPEN

We tend to run Rails apps on Heroku, in which case the routing layer acts as an HTTP proxy and request.ip is the IP of the proxy, not the user. The correct approach would be to use 'X-Forwarded-For' only if it is present:

request.env.fetch('HTTP_X_FORWARDED_FOR', request.remote_ip)

from prelaunchr.

^^ what this guy said

from prelaunchr.

@werkshy @danielschwartz I too faced similar situation using nginx and phusion passenger and had to tweak that piece of code. Would be great if this is changed in the code or add some reference in the README regarding this.

from prelaunchr.

I've made pull request #43 with solution.

from prelaunchr.