Could not complete the operation due to error 8000000b.

Could not complete the operation due to error 8000000b.

We are seeing this error a lot for our users in IE11 and earlier - nearly a 1:1 ratio.

After doing some digging it looks like it may be related to comments in the javascript, using:
  1.  // comment
Instead of:
  1. /* comment */

Has anyone else experienced this?