Passenger infinite redirect

I'm working with Passenger and have multiple applications deployed.
I'm trying to install Wagn on my current Passenger + Apache2 and I'm having some issues.

Each application has it's own path and URL access:
http://localhost/app1
http://localhost/app2
http://localhost/app3
http://localhost/wagnwiki

I've changed the config/wagn.rb as follows:
System.base_url = "http://localhost/wagnwiki"

When I try to access the wagn, using the address as above, I get an infinite redirect.
On Apache logs I can see the redirects, and production.log shows me the same thing.

What I'm missing?