title: Facebook ignoring open graph meta tags
body: <p>I have specified og meta tags on my single blog post pages because facebook is pulling preview images from the sidebar instead of the main content area, however they don't seem to be working. When I load the url in the debugger (<a href="https://developers.facebook.com/tools/debug" rel="nofollow">https://developers.facebook.com/tools/debug</a>), I get these warnings:</p>
  
  <p>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.
  Inferred Property   The 'og:description' property should be explicitly provided, even if a value can be inferred from other tags.
  Inferred Property   The 'og:image' property should be explicitly provided, even if a value can be inferred from other tags.</p>
  
  <p>Here's my source, there's no iframe being used or anything like that.</p>
  
  <p><a href="http://i.stack.imgur.com/u3718.png" rel="nofollow">http://i.stack.imgur.com/u3718.png</a></p>
  
  <p>What am I doing wrong?</p>