title: What would be blocking a CDN-downloaded script from executing in IE 10
body: <p>I have an HTML document (see below) that works fine in IE9, Chrome, etc, but in IE10, on some machines, fails with the error "$ not defined".  This indicates that jQuery is not being loaded.  However F12 tools on a problem machine reveals that the jquery <em>is</em> being downloaded to the browser (I get a 200 response, and the jquery code is in the response body).  If I use the same version jQuery loaded from the same server as the HTML document, it works, further implicating the CDN as a factor. IE ESC is off.  Antivirus is on the machines, but is disabled (McAfee). F12 tools show it's running in IE10 Compat View, Standards mode.  Changing modes has no effect.</p>
  
  <p>In this case I can do a local fallback, but in cases where I don't control the markup, and just in general, I'd like to know what is blocking this from running.</p>
  
  <p>This is in a large enterprise, and there are group policy customizations, but I can't find anything in IE settings that looks "off". Are there specific IE settings or other things that would cause this behavior?</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;head&gt;
  &lt;meta http-equiv="X-UA-Compatible" content="IE=edge" &gt;
  &lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8" &gt;
  &lt;script type="text/javascript" src="//ajax.aspnetcdn.com/ajax/jquery/jquery-1.11.0.min.js"&gt;
  &lt;/script&gt;
  &lt;script type="text/javascript"&gt;
  
  $(function(){
      $('#cmdTest').click(function(){
          alert('hi');
      });
  });
  &lt;/script&gt;
  
  &lt;title&gt;CDN Example&lt;/title&gt;
  
  
  &lt;/head&gt;
  
  &lt;body&gt;
  This is an example of broken CDN. You should see an alert when you click the button below.
  &lt;button id="cmdTest"&gt;Test&lt;/button&gt;
  &lt;/body&gt;
  
  &lt;/html&gt;
  </code></pre>