title: Where to set the X-UA-Compatible: IE=Edge?
body: <p>I want to set <code>X-UA-Compatible: IE=Edge</code> for my webpage hosted in IIS. Where can i set this?</p>
  
  <p>I know that it can be set using two ways</p>
  
  <ol>
  <li>Using <code>IIS http header</code> </li>
  <li><a href="https://github.com/h5bp/html5-boilerplate/blob/v4.1.0/doc/html.md#x-ua-compatible" rel="nofollow">setting X-UA-Compatible in html meta tag</a>.</li>
  </ol>
  
  <p>Here my questions</p>
  
  <ol>
  <li>which method should i consider? </li>
  <li>In performance perspective which is good? </li>
  <li>Will it affect the performance if i set using both the ways. ( assume both are difference values)</li>
  </ol>