title: Cache Problem in Vaadin
body: <p>I have a sample application with three steps as below</p>
  
  <p>Enter user details -> Personal details -> Finished</p>
  
  <p>When I click on a link it will invoke my vaadin application. The problem is once my three step process is finished and when I tried to again click on the my vaadin link it still shows the final wizard page 'Finished'</p>
  
  <p>(Browser cache needs to be cleared or browser needs to be restarted if I want to see again first page i.e. Enter user details wizard page)</p>