title: jquery 2.0.3 not working with IE
body: <p>I have the following sample html file:</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt;
  &lt;head&gt;
      &lt;title&gt;Example&lt;/title&gt;
      &lt;script src="../Scripts/jquery-2.0.3.js"&gt;&lt;/script&gt;
      &lt;!--&lt;script src="../Scripts/jquery-1.7.js"&gt;&lt;/script&gt;--&gt;
      &lt;script type="text/javascript"&gt;
          $(document).ready(function () {
              $('#mainheader').css("color", "red");
          });
      &lt;/script&gt;
  &lt;/head&gt;
  &lt;body&gt;
      &lt;h1 id="mainheader" class="header"&gt;Sample 1&lt;/h1&gt;
      &lt;h2 class="header info"&gt;Sample 2&lt;/h2&gt;
      &lt;h3 class="info"&gt;Sample 3&lt;/h3&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>When i run the same with jQuery version 2.0.3, it runs into error:</p>
  
  <p>Unhandled exception at line 834, column 4 in /Scripts/jquery-2.0.3.js</p>
  
  <p>0x800a01b6 - Microsoft JScript runtime error: Object doesn't support this property or method</p>
  
  <p>At the line:
  // Use the handy event callback
  document.addEventListener( "DOMContentLoaded", completed, false );</p>
  
  <p>But if I run with a lower version of it i.e., 1.7, it works fine...</p>
  
  <p>However the above code works perfectly fine for both versions on Chrome.</p>
  
  <p>Can you please help me out with the differences:</p>
  
  <p>Thanks &amp; Regards.</p>