[horde] SOLVED (was: Blank page after login)

[Peter Becker]

Oh my god!

The problem was not in horde - the problem was in the firewall
from the cutomer. They've got a "watchguard firewall Xseries"
with the new "fireware pro"...
There are by default proxies for the HTTP-traffic.
After switching from proxy to normal filter, everything works
fine now. And I searched for over 10 hours in the configs...
:'(

What a worse!
Peter