server {
    listen 80;
    server_name lang.kube5s.ru;
    root /usr/share/nginx/html;
    index index.html;

    # Агрессивный запрет кеширования — Chrome HSTS/cache bypass
    add_header Cache-Control "no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0" always;
    add_header Pragma "no-cache" always;
    add_header Expires "0" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;

    location / {
        try_files $uri $uri/ /index.html;
    }
}