title: Loggin in with facebook url issue
body: <p>I've looked around and search but can't seem to find the answer to this.  I have a login with facebook button on my site, and I've setup the app on developer.facebook.com according to what I've read.  But not sure why I keep coming up with this,
  error:</p>
  
  <pre><code>Given URL is not allowed by the Application configuration.: One or more of the given URLs is not allowed by the App's settings. It must match the Website URL or Canvas URL, or the domain must be a subdomain of one of the App's domains.
  </code></pre>
  
  <p>Settings in facebook app:</p>
  
  <pre><code>Basic Settings:
     App domains: www.olympusmons.com
  
  Select how your app integrates with Facebook
     Website with Facebook Login
         Site URL:  http://www.olympusmons.com
  </code></pre>
  
  <p>Now the url I am trying to log in from is <a href="http://www.olympusmons.com/xxx/" rel="nofollow">http://www.olympusmons.com/xxx/</a> 
  I followed this <a href="http://thinkdiff.net/facebook/new-javascript-sdk-oauth-2-0-based-fbconnect-tutorial/" rel="nofollow">tutorial</a> I changed the appid, not sure what else am I doing wrong..</p>