server {
    listen       80;
    server_name  localhost;
    
    server_tokens off;
    proxy_hide_header X-Powered-By;
    proxy_hide_header Server;
    add_header X-XSS-Protection "1; mode=block";
    add_header Strict-Transport-Security 'max-age=31536000; includeSubDomains; preload';
    add_header X-Frame-Options DENY;
    add_header X-Content-Type-Options nosniff;
    add_header X-Permitted-Cross-Domain-Policies master-only;
    add_header Referrer-Policy same-origin;
    add_header Expect-CT 'max-age=60';
    
    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
        try_files $uri $uri/ /index.html;
    }

    location /api {
        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-Host $server_name;
        proxy_pass        http://backend:8000;
        proxy_redirect    default;
    }
}