startEdit method doesn't work in IE

1. 
   

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2. 
   
   
   

   
   

   
   

   startEdit method doesn't work in IE

   
   

   
   

   startEdit method doesn't work in IE

   
   
   
   

   
   

   Here is example:
   

   http://ift.tt/1DeHt6J

   
   

   Select row in grid and click on "Edit Selected".
   
   Cell editor is shown in Chrome, FF but not in IE.

   
   

   
   

   
   

   
   

   
   

   
   
   
   

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startEdit method doesn't work in IE