I have an application in Heroku which has generated some CNAME and I have added them in Cloudflare but I have an error which Cloudflare only sends IPv6 and my app in heroku requires an IPv4.
To be more specific, I have a subdomain
admin.example.com that uses a firewall to block IP addresses that have not been whitelisted. My IPv4 is whitelisted, but I am unable to access the application because Cloudflare sends my IPv6 to the application when I attempt to do so. And I can’t whitelist my IPv6 because it’s dynamic.