title: Vaadin session expired immediately
body: <p>I have a simple vaadin application created from an achetype. The page with button is loaded but when you click it, session is already expired. This problem occurs just <strong>only</strong> under this <strong>conditions</strong>:</p>
  
  <ul>
  <li>session is https</li>
  <li>browsert is IE 11.0.14393.0 (after Windows 10 Aniversary Update 1607)</li>
  <li>SPNEGO is used</li>
  </ul>
  
  <p>Server is WildFly 10.1.0.Final</p>
  
  <p>Other browsers (EDGE, Firefox, Chrome) works fine. Before Aniversary update the IE 11 worked as well.</p>
  
  <p>I know it is not enough information but I don't know what can be important. Can you point me what should I check / should I do?</p>
  
  <p>I haven't find anything strange at logs and communication. I'm guessing there will be something wrong with a session but I can not find what is bad :-( </p>