[kronolith] Kronolith / sabredav: No basic authentication headers found

[lst_hoe02 at kwsoft.de]

Hello,

we use Horde/Kronolith for CalDAV calender access from multiple  
clients. In a network trace we can see that Horde refuses CalDAV  
access with cookies set with Sabre DAV Exception and "No basic  
authentication headers found". This lead to  
http://tuxd00d.com/blog/sabredav-no-basic-authentication-headers-were-found/  
but the problem is said to occur only with CGI/FastCGI which we don't  
use. We have Ubuntu 12.04 with Apache and PHP5 as module with the  
latest Horde/Kronolith and all other is working fine. Any idea how to  
debug/solve this?

Thanks

Andreas