IdStory Identity Manager

I tested this localy and icons and fonts are show in IE 11 correctly. I think the problem will be on server side (Appach, reverse proxy) and investigation should be made on the enviroment by system administrator.

We found solution (thanks @kopro). You can try this:

<LocationMatch "/idm/.*(\.ttf|\.woff2|\.eot)$">
Header set Cache-Control "no-cache, public, must-revalidate, proxy-revalidate"
Header set Pragma ""
</LocationMatch>

Pragma header should be not set.

Unfortunately, this solution didn't help.
We tried to solve it remotely with Ondra K. (thanks), so here is some more info:

• According to Ondra, the icons are in the files
  glyphicons-halflings-regular.eot
  fa-solid-900.eot
  fa-regular-400.eot
• Downloading of those files shows the following exception in the Developer console of IE:
  

  @font-face encountered unknown error

• In the Network tab of the developer console, the requests for those files (after clicking Ctrl+F5) had the response code 304 and note "from cache". There wasn't the response header "Pragma" (it was present in the requests for OpenSans-xxx files). The path contains a question mark at the end ("fa-solid-900.eot?"), but it's the same for Ondra.
• There were also exceptions when downloading the font files OpenSans-xxx.ttf - "@font-face failed OpenType embedding permission check. Permission must be Installable" - but Ondra gets these exceptions as well on a different project, where the icons are alright.
• We tried also the tip about the header Vary - https://stackoverflow.com/questions/7748140/font-face-eot-not-loading-over-https - but with no result. Also the icons aren't loaded when going directly to http://localhost:8080/idm, so I don't know if the HTTPS is the problem here. (We have self-signed certificate.)
• We didn't try any different browser, because there wasn't any different browser on that computer. We also couldn't try any different IdM instance, because there is no internet connection on that server.

We will probably try to bring some system admin with us so he can try to solve it.

Obsolete ticket - IE 11 is no longer supported.