Redirect from FaceBook

[eluser]DocFunky![/eluser]
Hello there,

I just wanted to know how could I get a valid url when I send to FaceBook that my url I want FaceBook to redirect my user is : site_url('main/verification') (its a localhost address)

so my loginUrl looks like this :
https://www.facebook.com/dialog/oauth?cl...9f618d65ad

once I click on the link, I'm directed to FaceBook, but then, I'm redirected to my main page (and not main/verification) with that URL in my browser :
http://localhost/SocialCart/index.php?%....fdOLpc#_=_

Well I've deleted a part of the Trash code but you see that I get, after my index.php? an %.2.F instead of an / and the & should be ? (I think)

(remove the points '.' between every %2 and 2F)
I could I fix it please ?

Thank you