title: What is triggering IE7 standards mode on this page?
body: <p>1 . open IE8<br>
   2 . press F12<br>
   3 . load msdn.com  </p>
  
  <p>you should see </p>
  
  <p><img src="https://i.stack.imgur.com/9O1wM.jpg" alt="msdn doctype and compatibility mode"></p>
  
  <p>4 . open a new tab and load <a href="http://preview.espacenet.com" rel="noreferrer">this site</a>
  you should see </p>
  
  <p><img src="https://i.stack.imgur.com/XuPyS.jpg" alt="preview doctype and compatibility mode"></p>
  
  <p>Please tell me what on the second page triggers the IE8 Compat View IE7 Standards</p>
  
  <p>On the page in question, we do NOT set the X-UA-Compatible meta tag (yet, we are thinking of setting it to EDGE) and we are not sending X-UA-Compatible in the header.</p>
  
  <p>I do not know where in my browser I could set this, I do know that of the three testing this, ONE does not have the issue and the other two do.</p>