HAProxy frontend + Nginx backend SSL mixed content errors

jackieliu

I am trying to run a TastyIgniter v3.0.4-beta.10 instance behind a HAProxy load balancer that redirects HTTP to HTTPS requests with redirect scheme https if !{ ssl_fc }. My backend server, running Nginx 1.14.0 and PHP-FPM 7.2, listens on port 8080 for requests from the frontend. I'm getting a situation where all the static assets (css, images, forms) generated by Laravel are http://mydomain.com even though the 'url' is set to https://mydomain.com in /usr/share/nginx/html/config/app.php.

This causes a mixed content error in Chrome and Firefox, so only the HTML loads when accessing TastyIgniter (nothing else).

Screenshot

Have attempted to rewrite all requests to HTTPS using a 302 redirect in the Nginx config file, which causes a redirect loop error.

For reference, here is a copy of my Nginx config file:

server {
        listen 10.133.252.236:8080;
        # listen [::]:80;

        server_name mydomain.com;

        root /usr/share/nginx/html;
        index index.php index.html;

        location / {
                try_files $uri $uri/ /index.php?$query_string;
        }

        location ~ \.php$ {
                include snippets/fastcgi-php.conf;

                # With php-fpm (or other unix sockets):
                fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
                # With php-cgi (or other tcp sockets):
                # fastcgi_pass 127.0.0.1:9000;
        }

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one

        location ~ /\.ht {
               deny all;
        }
}

Looking forward to any help if you get a chance. Thanks in advance!