Facebook login “given URL not allowed by application configuration”

Question

I\'ve added facebook login to my site. However, when I click the button, I get a red box that says:

Invalid Argument

Given URL is not allowed by the Applic         


        

Answer 1

I was getting this problem while using a tunnel because I:

1. had the tunnel url:port set in the FB app settings
2. but was accessing the local server by pointing my browser to "http://localhost:3000"

once i started punching the tunnel url:port into the browser, i was good to go.

i'm using Rails and Facebooker, but might help others just the same.