Passbolt portal access issue from revers proxy server

Dear Passbolt Team,

I am facing issue while we access passbolt server over the nginx revers proxy server. csp script was unable to communicate with revers proxy server it is directly try to communicate passbolt server.

we have set passbolt resolve from http and revers proxy server resolve over https.

For more info we have attached images for your reference.

please guide us.

We user below revres proxy stanza on new revers proxy server and that server perfectly communicate with passbolt server using curl commnad (eg. curl -I http://passbolt.local)
but while we access passbolt web using revers proxy server on user end system getting white page.

server {
listen 80;
server_name passbolt.example.com;
return 301 https://$server_name$request_uri;
access_log /var/log/nginx/pam/access.log;
error_log /var/log/nginx/pam/error.log;
location / {
proxy_pass http://passbolt.local;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}

server {
listen 443 ssl http2;
server_name passbolt.example.com;

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers off;

    ssl_certificate /etc/nginx/ssls/domain.crt;
    ssl_certificate_key /etc/nginx/ssls/domain.key;
    ssl_session_timeout     1d;

ssl_session_cache shared:SSL:100m;

    ssl_session_tickets     off;
    access_log /var/log/nginx/passbolt/access.log;
    error_log /var/log/nginx/passbolt/error.log;
    location / {
           proxy_pass http://passbolt.local;
           proxy_set_header Host $host;
           proxy_set_header X-Real-IP $remote_addr;
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
           proxy_set_header X-Passbolt-Server-URL https://$server_name/auth;
           proxy_set_header X-Forwarded-Proto $scheme;
    }

}

Hello @kirank , welcome to the forum and sorry for the delay.

Could you try to add this location block in /etc/nginx/sites-enabled/nginx-passbolt.conf ?