title: Restore HTML form state for cascade controls when hitting F5
body: <p>In the page <a href="http://carmen-rails-demo.herokuapp.com/" rel="nofollow">http://carmen-rails-demo.herokuapp.com/</a> there is an example about the Country / State selection that is very common in web forms.</p>
  
  <p>Let's suppose that you select United States and Colorado and after that you hit F5. In this scenario the country code will be remembered, but not the state code, because it's loaded with ajax.</p>
  
  <p>How can I save this state and restore it after a page refresh with F5?</p>