title: ie9 iframe xml problem
body: <p>I have a problem with showing xml in IE9 in iframe which is located with another content on the page. 
  So, I have such iframe on the page:</p>
  
  <pre><code>&lt;iframe  id="idIframe" src="/showXml.aspx?ID=xxxx"&gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>showXml.aspx:</p>
  
  <pre><code>  string xml = HttpUtility.HtmlDecode("someXML");
    Response.Clear();
    Response.ContentType = "text/xml";
    Response.Write(xml);
    Response.End();
  </code></pre>
  
  <p>When page is displayed - content of iframe is blank. However, if the link for xml is opened directly in browser - everything is ok and XML is shown.</p>
  
  <p>It works in IE7,IE8 and all other browsers. So, is it a bug of IE9 or that is me who is doing smth wrong?</p>