When using Safari 14.0.3 on Mojave, if I paste https://gramhum.com in the address bar, I am redirected to greatfon.com, but the "https://" part disappears and the query is sent unencrypted via port 80. It is blocked by the firewall, so it fails.
I have to manually retype the URL to make it work. Same thing happens if I click the link inside an HTML file.
I have no problem with Firefox and Chrome (these browsers redirect properly to https://greatfon.com).