title: single page application without using hashtag
body: <p>Is it possible (and how) to do a single page application <strong>without</strong> using hashtag ?</p>
  
  <p>On Google+ for example, we can click on some links, then the URL changes (but without hashtag) BUT we can't see a new page loading, only some part of the page is loading and refreshed.</p>
  
  <p>Thank you.</p>