server {
    listen 80;
    root /usr/share/nginx/html;
    index index.html;

    location = / {
        auth_basic "GenieACS Firmware Pusher";
        auth_basic_user_file /etc/nginx/.htpasswd;
        try_files /index.html =404;
    }

    location = /index.html {
        return 404;
    }

    location / {
        auth_basic "GenieACS Firmware Pusher";
        auth_basic_user_file /etc/nginx/.htpasswd;
        try_files $uri $uri/ /index.html?$query_string =404;
    }
}