title: Kendo window close didn't clear properly?
body: <p>I have a link that open a popup using kendoWindow. Everytime I close the popup and re-open again (from another link), the value from the first one wont clear at all. 
  FYI, this kendo popup window is re-usable.</p>
  
  <p>For example:
  I have 2 link. Link A and Link B.</p>
  
  <p>This link will call an ActionResult from the controller with parameter.</p>
  
  <p>Link A will produce text = 'AAAAAAAAAAAAAA'
  while link B will produce text = 'BBBBBBBBBBB'</p>
  
  <pre><code>//In controller:
  public ActionResult Caller(string param)
  {
      ViewModel viewModel = new ViewModel(); //This is a class that store a string.
      if(param == "A")
      {
          viewModel.Result = "AAAAAAAAAAAAAA";
      }
      else
      {
          viewModel.Result = "BBBBBBBBBBB";
      }
      return View(viewModel);
  }
  </code></pre>
  
  <p>So the flow are:
  1. click the Link A. It will open the popup with value = AAAAAAAAAAAAAA.
  2. close the popup.
  3. re-open the popup from Link B. For a while, it will stay AAAAAAAAAAAAAA and after that (maybe taking about 2 secs) it will change to BBBBBBBBBBB.</p>
  
  <p>If when in the slow bad connection, it will take times from changing AAAAAAAAAAAAAA to BBBBBBBBBBB.</p>
  
  <p>My question is: 
  Why the popup wont start as blank pop up (it still save old value on the layout)?</p>
  
  <p>Thanks in advance,
  Vera</p>