Bad gateway in Chrome and Edge when redirect http to https

Oops, sorry forgot to mention. Yes, I’ve upgraded and I’m now on core 156, all packets up to date, including Haproxy and openssl.
All versions as you posted above.

I even used a VPN connection to login to our office and tried Edge and Chrome on Win10 there, mainly to avoid any LAN issue on my side, but saw the save behavior on remote, too…