title: PDF files get downloaded twice - IE8
body: <p>I am facing an issue while streaming PDF file on a Java EE web application over HTTPS connection.  I am using an IFRAME to display the PDF file. I display the pdf using an ajax call to the server.</p>
  
  <p><strong>I have noticed that PDF streaming got downloaded twice just on Internet Explorer</strong></p>
  
  <ul>
  <li>I saw that by using Wireshark to measure the frame size, and saw it is the double of the requested PDF file size.</li>
  <li>Also used HttpWatch Basic, to see the PDF got downloaded twice.</li>
  </ul>
  
  <p>Is there any known issue on Internet Explorer about that?  What is the workaround?
  For information I have this issue using Acrobat Reader 9 on Internet Explorer 8.</p>