title: S/MIME fails utterly with OWA on IE11
body: <p>I have OWA set up on IE11 with S/MIME. At some point recently things went sideways and now things are broken:</p>
  
  <ol>
  <li>I cannot view any digitally signed email (including sent items signed by me). The emails open. The sender and recipients all show up. The body of the email is simply blank. This happens with the preview pane on the main window as well as when you open the email in a new window.  No console errors show up when I try to view these emails (when I uninstall S/MIME I can see the emails in their entirety. Obviously I also get an error saying that the digital signature cannot be validated). </li>
  <li>I cannot send ANY emails (signed or otherwise). It allows me to craft the email as normal but when I hit "send" nothing happens (without S/MIME I can send emails without issue). I receive the following javascript error in the console:
  
  <blockquote>
    <p>SCRIPT5007: Unable to get property 'replace' of undefined or null reference<br>
    fedtsmime.js (1,72117)</p>
  </blockquote></li>
  <li>When crafting a new email, for some crazy reason my personalized signature (the auto-appended variety in the body of the email) doesn't show up (without S/MIME it shows up).</li>
  </ol>
  
  <p>Information that may help inform the problem:</p>
  
  <ol>
  <li>I have cleared ALL historical data, ALL form data, and reset my SSL state in IE11. Nothing changed.</li>
  <li>I have traced the certificate chain all the way up and they are all properly located in the "local machine" trust store.</li>
  <li>THIS USED TO WORK. A few weeks back I didn't have any issues. Now suddenly it all fails. That implies perhaps that something expired? But I checked the full chain and it seems OK.</li>
  <li>I did not bother trying to work with encrypting emails since I cannot send any emails whatsoever.</li>
  <li>My certificates are being accessed via Smart Card. I am using ActivClient.</li>
  <li>I made sure TLS is enabled and SSL 2.0 is disabled.</li>
  </ol>