add_header 상속 문제

server {
    listen 80;
    add_header X-Frame-Options DENY;
    add_header X-Content-Type-Options nosniff;

    location / {
        root /var/www/html;
    }

    location /api/ {
        proxy_pass http://backend:3000/;
        add_header X-API-Version "1.0";
    }
}