Enable HTTPS for Transmission on Synology

www.transmission.conf

# Create nginx config /etc/nginx/conf.d/www.transmission.conf
# sudo synoservice --restart nginx
location /transmission {
    if ($scheme = http) {
        return 301 https://$http_host$request_uri;
    }
    auth_basic "Server Restricted";
    auth_basic_user_file /etc/nginx/conf.d/.htpasswd;
    allow 192.168.1.1;
    allow 192.168.1.192/28;
    deny all;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_set_header X-NginX-Proxy true;
    proxy_http_version 1.1;
    proxy_set_header Connection "";
    proxy_pass_header X-Transmission-Session-Id;
    proxy_buffering off;
    proxy_redirect off;
    add_header Front-End-Https on;
    proxy_pass http://localhost:9091/transmission;
}