server {
    listen 80;
    listen [::]:80;
    server_name _;

    root /usr/share/nginx/html;
    index index.html;
    charset utf-8;
    absolute_redirect off;

    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_types text/plain text/css application/javascript application/json application/xml image/svg+xml;

    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header X-Frame-Options "SAMEORIGIN" always;

    location /assets/ {
        try_files $uri =404;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    location / {
        try_files $uri $uri/ =404;
        add_header Cache-Control "no-cache";
    }

    error_page 404 /404/;
    location = /404/ {
        internal;
        add_header Cache-Control "no-cache";
    }
}