server {
    listen 7860; server_name _; root /usr/share/nginx/html; index index.html;
    location = /health { access_log off; default_type text/plain; return 200 "ok\n"; }
    location /assets/ { try_files $uri =404; expires 30d; add_header Cache-Control "public, immutable"; }
    location = /index.html { add_header Cache-Control "no-cache, no-store, must-revalidate"; }
    location / { try_files $uri $uri/ /index.html; }
}