There is no place like 127.0.0.1
The Apache server that is configured for IPv6 has an A+ score on SSL Labs.com. I created a new web site dedicated for my IPv6 work. ipv6.scsiraidguru.com.
2.5.2021: Fortinet has created an New Feature Request for IPv6 Virtual IP that allows any web site URL to an internal IPv6 address.