title: How to remove the "Webpage Dialog" in IE modal window title?
body: <p>I'm using <code>window.showmodaldialog()</code> in javascript. </p>
  
  <p>In modal dialog "webpage dialog" content is appended in the title. I want to remove this. 
  I tried to force to space after title. Also I don't want to use "&nbsp;". Any other way to remove this?</p>
  
  <p><img src="https://i.stack.imgur.com/Y3u6o.png" alt="Modal window - webpage dialog"></p>