xoxys.nginx/templates/etc/nginx/conf.d/header.conf.j2

# {{ ansible_managed }}
# default header settings
{% if nginx_tls_enabled and nginx_tls_hsts_enabled %}
add_header Strict-Transport-Security{% if nginx_hsts_options is defined %} "{{ nginx_hsts_options | join("; ") }}"{% endif %};
{% endif %}
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";