location /elevation/ {
# Aplica la zona creada. 
    # 'burst=10' permite una ráfaga de hasta 10 peticiones si el usuario se excede, 
    # y 'nodelay' las procesa inmediatamente en lugar de pausarlas.
    limit_req zone=limite_elevacion burst=10 nodelay;

    proxy_pass https://api.open-elevation.com/;
    proxy_set_header Host api.open-elevation.com;
    proxy_pass https://api.open-elevation.com; // Eliminada barra final
    proxy_set_header Host api.open-elevation.com;
    proxy_set_header X-Real-IP $remote_addr;
    add_header 'Access-Control-Allow-Origin' 'https://www.manuelvilela.com' always;
    add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always;
    add_header 'Access-Control-Allow-Headers' 'Content-Type' always;

    if ($request_method = 'OPTIONS') {
        add_header 'Access-Control-Allow-Origin' 'https://www.manuelvilela.com' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always;
        add_header 'Access-Control-Allow-Headers' 'Content-Type' always;
        add_header 'Content-Length' 0;
        return 204;
    }
}