[horde] Authentication Carddav

[pillul]

>
> Zitat von pillul <pillul at freenet.de>:
>
>> Hey,
>>
>> i try to get Carddav runing using a global adressbook.
>> I added a new adressbook and checked that "authorized users" are allow  
>> to access it.
>> My authentication works against an IMAP Server.
>> If i try to open the carddav adresse (like:  
>> https://domain.de/mail/rpc.php/addressbooks/user@domain.de/contacts:Rmjw-T3hA3KT-dsaWYmCKA1/  
>> i get prompted for my login data.
>> I enter my email and password (the same i use for log in via horde and  
>> the imap server) but i get an access denied error:
>>
>> <d:error>
>> <s:exception>Sabre\DAV\Exception\NotAuthenticated</s:exception>
>> <s:message>No basic authentication headers were found</s:message>
>> <s:sabredav-version>1.8.4</s:sabredav-version>
>> </d:error>
>>
>> Did i miss something?
>>
>> Thank You!
>
> What the message said. You might have entered the login data, but it  
> didn't get to the server.

Any ideas how i can debug this further more?
HTTP_WebDAV_Server (the pear module) was missing, i installed it now but  
its not working so far...