I'm having trouble using a remote icalendar with zimbra. The problem is that access to the calendar requires the client to authenticate itself using Apache's basic authentication.

I get this error:
"Error parsing calendar"

I can access the calendar with no problems when the authentication requirement is removed.

The ical file is being served by subversion, btw. Other clients such as KOrganizer can read/write to the file successfully even when authentication is on.

Just wanted to alert the developers to this.