title: Facebook Follow Button plugin doesn't allow periods in profile
body: <p>Trying to set up a follow button with Facebook's plugin here:</p>
  
  <p><a href="https://developers.facebook.com/docs/reference/plugins/follow/" rel="nofollow">https://developers.facebook.com/docs/reference/plugins/follow/</a></p>
  
  <p>I've found that any profile url I enter that contains periods (for example, <a href="http://www.facebook.com/John.Smith" rel="nofollow">http://www.facebook.com/John.Smith</a>) will return an error.</p>
  
  <p>From the error console I receive</p>
  
  <pre><code>Failed to load resource: The requested URL was not found on this server.
  </code></pre>
  
  <p>This happens with the HTML5, iframe and URL versions of the plugin. Just out of curiosity I tried encoding the period with %2E, and I also tried using the numeric profile ID, but neither worked.</p>
  
  <p>Is there any other trick I can try to make this work?</p>