[CalendarServer-users] El Capitan Calendar client doesn't work with calendarserver SSL connections

This might save someone from pulling out their hair. El Capitan’s Calendar app requires TLSv1.2 handshaking which calendarserver doesn’t provide. The app simply refuses to connect with a misleading error message about not being able to validate username or password. The workaround is to use a current Apache server to handle the TLSv1.2 portion of the connection and redirect to a plain http connection on the localhost. This killed 3 hours of my day today and I hope someone finds this hard-won knowledge valuable. ./k