title: 'XML5619: Incorrect document syntax. ' error in IE10 Only
body: <p>I've been noticing during some IE10 testing that I keep running into the following error:</p>
  
  <pre><code>XML5619: Incorrect document syntax. 
  </code></pre>
  
  <p>However, I'm not using XML explicitly, and I can't seem to find documentation as to what this error actually means. I'm using the HTML5 doctype, if that matters.</p>
  
  <p>Can anyone out there with IE expertise help lead me in the right direction? </p>