title: Facebook Open Graph Error - Inferred Property
body: <p>I'm trying to implement Facebook's OpenGRaph protocol on my product pages.</p>
  
  <p>On each page i have this above the head section:</p>
  
  <pre><code>&lt;html xmlns="http://www.w3.org/1999/xhtml" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://www.facebook.com/2008/fbml"&gt;
  </code></pre>
  
  <p>Then within the head section i have:</p>
  
  <pre><code>&lt;meta property="og:title" content="This Page Title"/&gt;
  &lt;meta property="og:type" content="product"/&gt;
  &lt;meta property="og:url" content="http://www.mywebaddress.com"/&gt;
  &lt;meta property="og:image" content="http://www.myimage.jpg"/&gt;
  &lt;meta property="og:site_name" content="My Site Name"/&gt;
  &lt;meta property="fb:admins" content="10101010101"/&gt;
  &lt;meta property="og:email" content="hello@mywebaddress.com"/&gt;
  &lt;meta property="og:description" content="Description of my product."/&gt;
  </code></pre>
  
  <p>I then have a 'like' button with this code:</p>
  
  
  
  <pre><code>        &lt;script&gt;(function(d, s, id) {
          var js, fjs = d.getElementsByTagName(s)[0];
          if (d.getElementById(id)) {return;}
          js = d.createElement(s); js.id = id;
          js.src = "//connect.facebook.net/en_US/all.js#xfbml=1";
          fjs.parentNode.insertBefore(js, fjs);
          }(document, 'script', 'facebook-jssdk'));&lt;/script&gt;
          &lt;div class="fb-like" data-href="http://thispagesurl" data-send="true" data-width="350" data-show-faces="false"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>To my eye, everything seems to replicate what can be found on the <a href="http://developers.facebook.com/docs/opengraph/" rel="noreferrer">Facebook Developers page</a> but when i 'like', Facebook is seemingly only picking up on the page title and general info.</p>
  
  <p>I have tried to 'debug' the page using their Object debugger, and i get these warnings: </p>
  
  <pre><code>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:image property should be explicitly provided, even if a value can be inferred from other tags.
  Inferred Property   The og:locale property should be explicitly provided, even if a value can be inferred from other tags.
  </code></pre>
  
  <p>As far as i can tell, i have followed Facebook's instructions to the letter, but i have no joy. Can anyone point out if i'm doing anything wrong?</p>
  
  <p>Thanks in advance,
  Dan</p>