I am using HAProxy as my reverse proxy on an OPNSense firewall. In the backend currently I have two servers: jitsi and frappe/ERPNext
I am running a dyndns with subdomains of my domain at strato and SSL via Let’s encrypt for the two domains.
Accessing the Servers via the public dynDNS domains works fine with the SSL certificates. For Jitis I also configured some port forwarding in the firewall.
Jitsi runs fine.
Frappe/ERPNext allows to access the front page and visit any non-password protected sites. However, when I try to login Frappe fails to perform the login.
The error-log can be seen herer:
I know that this may be a frappe specific problem. However, I hope there may be some simple option or header in HAProxy that I may set to support the login to frappe.
Any help is appreciated!