title: Document Mode changed to Quirk when opening a new tab on IE (ASP.NET)
body: <p>I have a button click event that do some server side job and finally open a new tab. But when that happens, the parent tab on Internet Explorer become very bizarre. Then I found Document Mode is changed to Quirk mode that make the whole website move to left instead of centre and I lost some styling as well. I tried with the code below but still happen. </p>
  
  <pre><code>    &lt;meta http-equiv="X-UA-Compatible" content="IE=edge"/&gt;
      &lt;meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" /&gt;
  </code></pre>
  
  <p>Can anyone tell me why that is happening and how to solve this? Thanks.</p>
  
  <p>My code sample.</p>
  
  <pre><code>    Sub btnTeachersView_Click
      ........ server side code ........
      Response.Write("&lt;script&gt;")
      Response.Write("window.open('../abc.aspx','_blank')")
      Response.Write("&lt;/script&gt;")
      End Sub
  </code></pre>
  
  <p>NOTE: It needs to be on server side coz there are other jobs need to be done first and my client wants it in a new tab so i can't just redirect to that page.</p>