Facebook login "given URL not allowed by application configuration"
Your settings must be incorrect.
Go to http://www.facebook.com/developers/ and edit the application you're working on.
On the "website" tab, look for "Site URL". This should be set to your website's URL "http://yoursite.com/"
Note that if you're using subdomains, you'll also need to update "Site Domain" to be "yoursite.com"
You can set up a developer application and set the url to localhost.com:port Make sure to map localhost.com to localhost on your hosts file
Works for me