[Inf-IT DAVcl] Caldavzap/mate auth using basic_auth

Hi! I'm using apache basic_auth on my webserver that runs Davical and caldavzap/mate. While caldavzap doesn't seem to be negatively affected by basic_auth, unfortunately it doesn't take advantage of it either. In theory it could skip the login screen and jump right into the calendar. Instead one has to enter his credentials again. "/auth/" shows that caldavzap correctly receives username/password from the webserver (even when not "logged in" in caldavzap). Is there a way to make caldavzap (and *mate) to skip the login-screen in such a setup? cheers Dariush