title: PDF.js not rendering document in Windows 7 and IE 11
body: <p>We have embed using an iframe PDF.js using the latest version downloaded from their site.
  The problem we are having is that for some users the document is not being rendered on windows 7 with IE 11. Instead of the content of the document they get a blank page.
  We narrow it to that configuration, but what is more confusing to us is that if we log with another user to the same machine (using remote desktop), the other user can see the document without any troubles.</p>
  
  <p>I can post the pdf document since it contains sensitive data from our customers/clients. How ever the pdf contains some text and images.</p>
  
  <p>We check the settings and found nothing different, except the fact of an intel graphics driver that may be old. </p>
  
  <p>Do someone know if there is an specific setting on IE or something related to PDF.js that needs like webgl or similar to work? </p>
  
  <p>sorry for being vague but i have no clue and i'm a little bit lost trying to figure out this issue.</p>
  
  <p>thanks in advance</p>