title: Change page title with PJAX?
body: <p>I'm using PJAX with cakePHP. Everything works super fine, but since I'm not reloading the layout, I don't get title update. I was told I had to put a  tag in the body, and that it would get removed. It seems to work but, is it valid to have an HTML page without a  tag ?</p>
  
  <p>EDIT : well actually the tag isn't removed, so HTML markup is invalid! What is the best practice for this? It would need to be the same for metas.</p>
  
  <p>The official demo uses this in Ruby but I don't read it :</p>
  
  <p><a href="https://github.com/defunkt/jquery-pjax/blob/heroku/app/pjax.rb" rel="nofollow">https://github.com/defunkt/jquery-pjax/blob/heroku/app/pjax.rb</a></p>
  
  <p><a href="https://github.com/defunkt/jquery-pjax/blob/heroku/app/views/layout.erb" rel="nofollow">https://github.com/defunkt/jquery-pjax/blob/heroku/app/views/layout.erb</a></p>