proxy_set_header Host $host;
        proxy_set_header Proxy "";
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarde-Proto $scheme;
        proxy_set_header X_FORWARDED_SSL on;
        proxy_set_header HTTP_X_FORWARDED_SSL on;
        proxy_buffering off;
        
        add_header Content-Security-Policy "default-src 'self' 'unsafe-inline'";
        add_header X-Content-Type-Options nosniff;
        add_header X-XSS-Protection "1; mode=block";
        add_header Referrer-Policy "strict-origin";
        add_header Strict-Transport-Security "max-age=31536000" always;