title: IE9 doctype causing issues
body: <p>I am experiencing severe frustration with IE9.</p>
  
  <p>My application has this doctype defined, which has worked perfectly fine in every other browser until now.</p>
  
  <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
  </code></pre>
  
  <p>I even tried this meta tag, with no success</p>
  
  <pre><code>&lt;meta http-equiv="X-UA-Compatible" content="IE=100" &gt;
  </code></pre>
  
  <p>With the doctype on, all of my heading tags disappear.  With it off, My headings appear, but javascript doesn't work (not even an alert), and my css is messed up way worse than not having headings.</p>