IE11: Icon Font not be shown. (Seafile-font2)

Hello Seafile Community,

Unfortunately, IE11 does not load the icon fonts. (“Seafile-font2”)


Can you help here?

Server Version: 6.3.3
IE: 11.345

The first page call is, then no longer. The icons are not displayed. What could be the problem?

I saw something similar to this, too.
I think there are some posts out there regarding FontAwesome on IE11/Windows 10.

Unfortunately, the problem is not resolved. I also find no solution.