title: Issue with Session and Cookie in Internet Explorer for websites containing underscore
body: <p>Recently we have created few websites with underscore (contains under website name).
   -------->  example (xyz_mnp.com)</p>
  
  <p>Issue is: Every time a page request cookie and session resets.
  It works fine with other browser but facing issue in IE</p>
  
  <p>I search lots of thread but didn't find any solution yet.</p>
  
  <p>Any help guys.
  Thanks</p>