title: Facebook URLs cannot be crawled
body: <p>I have an application with an iframe to one of my websites.</p>
  
  <p>I want to do the simplest posting via news.reads actions.</p>
  
  <p>I get the next error: </p>
  
  <pre><code>Fatal error: Uncaught OAuthException: (#3502) Object at URL http://fb.raal.co.il/ has og:type of 'website'. The property 'article' requires an object of og:type 'article'. thrown in /home1/raalcoil/public_html/fb/src/base_facebook.php on line 1106
  </code></pre>
  
  <p>after looking through a bit, I came accross these errors on the Debugger:</p>
  
  <pre><code>Critical Errors That Must Be Fixed
  
  Facebook URL:   Facebook URLs cannot be crawled.
  Errors That Must Be Fixed
  
  Missing Required Property:  The 'og:url' property is required, but not present.
  Open Graph Warnings That Should Be Fixed
  
  Inferred Property:  The 'og:url' property should be explicitly provided, even if a value can be inferred from other tags.
  Inferred Property:  The 'og:title' property should be explicitly provided, even if a value can be inferred from other tags.
  </code></pre>
  
  <p>Link to the debugger:
  <a href="http://developers.facebook.com/tools/debug/og/object?q=http%3A%2F%2Ffb.raal.co.il%2F" rel="nofollow">http://developers.facebook.com/tools/debug/og/object?q=http%3A%2F%2Ffb.raal.co.il%2F</a></p>
  
  <p>the website itself: <a href="http://fb.raal.co.il/" rel="nofollow">http://fb.raal.co.il/</a></p>
  
  <p>Why cant facebook crawl into my website?</p>