# Include this in your nginx server block:
#   include /path/to/nginx-security-headers.conf;
#
# This ensures ALL responses (HTML, CSS, JS, fonts) get security headers,
# not just PHP/API responses.

add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
add_header X-Content-Type-Options "nosniff" always;
add_header X-Frame-Options "DENY" always;
add_header Referrer-Policy "no-referrer" always;
add_header Permissions-Policy "geolocation=(), microphone=(), camera=()" always;
add_header Content-Security-Policy "default-src 'none'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; font-src 'self'; connect-src 'self'; form-action 'none'; frame-ancestors 'none'; base-uri 'none'" always;