Bootstrap glyphicons not showing up in IE (SSL)?

Question

Digital certificates

Need help with strange IE11 behavior. Maybe someone will tell you where to dig.
There is a site using Twitter Bootstrap. Hosted on IIS, SSL is used (without SSL, the problem does not repeat)
Two cases in which the problem with icons appears:
1. Open the page - there are icons. We press F5 - there are no icons (they are in the code, but are not displayed)
2. Open the page in a new window using window.open - there are no icons. If you reload the page in this window (not via F5, but via a link), then the icons will appear.
Fiddler shows that:
on page load, when icons are rendered, a request is made to
fonts/glyphicons-halflings-regular.eot? (result 200)
when loading the page, when the icons are NOT displayed, requests are made:
fonts/glyphicons-halflings-regular.eot? (result 200)
fonts/glyphicons-halflings-regular.woff (result 200)
fonts/glyphicons-halflings-regular.ttf (result 200)

Answer 1

Solution found:
The project used links to the local version of bootstrap. After replacing the css link with Bootstrap CDN everything worked.
The question why the problem with local css remains open.