title: FB debugger says that my og:image should be larger, even though it is large
body: <p><a href="http://developers.facebook.com/tools/debug/og/object?q=http%3A%2F%2Fwww.brunstad.org%2Fen%2Fchristian-life%2Fa-changed-man" rel="noreferrer">Check out this result of debugging an article using Facebook debugger</a>.</p>
  
  <p>It comes up with this warning: </p>
  
  <blockquote>
    <p>og:image should be larger. Provided og:image is not big enough. Please use an image that's at least 200x200 and preferably 1500x1500.</p>
  </blockquote>
  
  <p>But if you open the image displayed in the "og:image"-field below, you can clearly see that the image is big enough - 700x350 px.</p>
  
  <p>This results in Facebook picking random images when I'm publishing articles on my wall.</p>
  
  <p>Any idea why this happens?</p>
  
  <p><strong>Edit:</strong> Could the problem be caused by my CMS redirecting the url of the image?</p>