title: Facebook like or share with dynamic document title
body: <p>I found this problem all over the net but no answer yet, so maybe here someone solved it ...?
  I built a page relying heavily on jquery.address. It's got one index page and the rest loads dynamically via Ajax following Google's <code>/#!/</code> scheme for crawlable pages. Now I want to add Facebooks Like or share button but I can't get it to grab the actual page title or url. </p>
  
  <p>Whatever I do, it always falls back to title and url of the index page. It tried:</p>
  
  <ul>
  <li>(obviously) changing title an openGraph meta on load of the new parts.</li>
  <li>"linking" the crawler page (<code>?_escaped_fragmet_=xyx</code>) but specifying the <code>#!</code> page in meta</li>
  <li>"sharing" with a given title and url.</li>
  </ul>
  
  <p>I never get anything but a link to the index page or a blank "share" to the right url with title and thumbnail ignored.</p>
  
  <p>Has anyone got a similar setup working?</p>
  
  <p>Thanks for any hints,
  thomas</p>