I have emailed Ken about the issue but I figured I'd ask here too.
I have set up a new machine running Mountain Lion Server and, without following
this, WebDAV sync now works with OmniFocus out of the box. Just choose a folder, add to File Sharing, and OF doesn't error out anymore.
Problem is, if I activate the "Publish Due reminders as calendar" option, I can't subscribe to the .ics file that is created in the same WebDAV folder. While sync works, subscribing to the calendar gives: There was an error subscribing to the calendar. I'm not even asked to enter my credentials on OS X (both Mountain Lion and Mountain Lion Server). On iOS, it gives the same error.
Any idea?
Thank you.
P.S. I use the feature for this:
http://www.macstories.net/tutorials/...notifications/