What's the correct URL to use to connect to an ownCloud 6 instance for CalDAV?

I’ve tried to use:


but nothing shows up in the Calendar list in eM Client. I’ve also tried:


with the same result.

eM Client 6.0.19714.0

(Yes, ownCloud’s running at the root level of the host, so this should be the correct URL, and it works in other CalDAV clients.)

Strange, now it works fine if I use the URL including principals/username.

Is it possible to set up a single account to use both contacts and calendars from an ownCloud instance? If so, what URL should that be?

url for contacts should be almost same but with /carddav/ at the end, anyway it should be possible to turn on in Account management - Contacts tab - enable service.