Mouse cursor positioning is not working properly in IE >= 10

Mouse cursor position is not happening properly when user performs the click operation on editable div + whose parent is having draggable property with true value.

Some thing like below:

<div class="a" draggable="true"> 
    <div contenteditable="true" class="b"> Edit Me </div>
</div>

Ref: http://ift.tt/1OdKl6u

Note: This scenario is working well in chrome but not in IE >=10