title: Can't see like plugin iframe on (at least) some browsers
body: <p>Not sure why. I grabbed the code from:
  <a href="http://developers.facebook.com/docs/reference/plugins/like/" rel="nofollow">http://developers.facebook.com/docs/reference/plugins/like/</a></p>
  
  <p>And as stated there, we can read:</p>
  
  <blockquote>
    <p>"href - the URL to like. The XFBML version defaults to the current
    page. Note: After July 2013 migration, href should be an absolute URL"</p>
  </blockquote>
  
  <p>So I did.</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;body&gt;
      &lt;div&gt;
          &lt;iframe src="//www.facebook.com/plugins/like.php?href=https%3A%2F%2Fwww.facebook.com%2Fprojectokairos&amp;amp;width=100&amp;amp;height=21&amp;amp;colorscheme=light&amp;amp;layout=button_count&amp;amp;action=like&amp;amp;show_faces=false&amp;amp;send=false" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:100px; height:21px;" allowTransparency="true"&gt;&lt;/iframe&gt;
          &lt;/div&gt;
  &lt;/body&gt;
  </code></pre>
  
  <p>Could this be related with the fact that the page is unpublished?
  I hope not because I do need to place the button here and there on several pages before the FB page goes live.</p>