DAVdroid with Baïkal 0.2.7 and nginx 1.9.7

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Hello!

I have a problem with DAVdroid on my Baïkal 0.2.7 installation on nginx 1.9.7.
When starting an configuring the app the “setup_no_collections_found” error occurs (“No address books or calendars were found.”).
On my other CalDAV/CardDAV client (https://play.google.com/store/apps/details?id=org.dmfs.caldav.lib and https://play.google.com/store/apps/details?id=org.dmfs.carddav.Sync) the sync works without a problem.

The error message is the following:
https://paste.trashserver.net/pzhy7ytdq/9ginpl

My nginx config is created after the following one, with https/http2:
https://github.com/netgusto/Baikal/blob/0.2.7/Specific/virtualhosts/baikal.nginx

The nginx version supports the dav extensions.
https://paste.trashserver.net/pag29cjch/7jsts2
They are with the following options enabled:

dav_methods     PUT DELETE MKCOL COPY MOVE;
dav_ext_methods PROPFIND OPTIONS; 

Where is the source of the problem? Baïkal, nginx or DAVdroid?

Regards!
Conny

Edit: The server address is https://baikal.dervomsee.de/ and for testing i created a dummy account with user: test and pass: test.

Hello,

[trace] --> PROPFIND /cal.php HTTP/1.1
[…]
[trace] <-- HTTP/1.1 401 Unauthorized (154ms)

As you can see, Baïkal doesn’t accept the user credentials. Did you either disable preemptive auth. in DAVdroid or set Baïkal to Basic auth. as described on https://davdroid.bitfire.at/configuration (see the notes for Baïkal)?

The nginx version supports the dav extensions.

There’s no need to enable ngx_http_dav_module unless you want to use WebDAV file synchronization with your nginx server. All CalDAV/CardDAV stuff is passed to and processed by Baïkal.

Ohh, never tried the preemptive auth checkbox… Then its working. I have tried on this for ours. ;-(
Thank you!