[sync] Sync4j / horde rpc doesn't work over HTTPS

[Jochem Meyers]

When trying to synchronise (against a horde backend) using
https://domain.tld/horde/rpc.php, Sync4j attempts to sync for a very long
time, before throwing an error. When going to
https://domain.tld/horde/rpc.php in a browser, it works fine, and gives a
valid xml document:

<disco:discovery>

 <scl:contractRef ref="https://domain.tld/horde/rpc.php?wsdl"/>

</disco:discovery>

 

I switched apache from https to http, to see if https was the problem.
Synchronisation works fine over http.

 

I've also imported apache's certificate (IE doesn't complain about the
untrusted certificate anymore, so it's imported correctly), but to no avail.

 

The device I'm using is an HP iPaq 6500, with PocketPC 2003