Timer not working for IE 11 users

[lens7777]

For IE 11 only, our users see the message as soon as they load any page where the script is active (protected page). If they move from one protected page to another, they see the message again. It's acting as if the warnAfter value is zero.

The script works as expected on all other browsers I've tested.

Here are the only mods I've made:

1. Wrapped sessionTimeout() in a jQuery document.ready (it didn't work without it)
   <script type="text/javascript">
   $(function() {
   sessionTimeout();
   });
   </script>
2. Edited the session-timeout.js to use our default timeout values (30/25 min.) instead of passing them in
   timeOutAfter: 18e5,
   warnAfter: 15e5

Is this IE 11 bug reproducible on your end? Any suggestions?

Thanks for your time.