homepage/docker/server/headers.include

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# Enable HTTP Strict Transport Security (HSTS) to force clients to
# always connect via HTTPS (do not use if only testing)
add_header Strict-Transport-Security "max-age=31536000;" always;
# Enable cross-site filter (XSS) and tell browser to block detected
# attacks
add_header X-XSS-Protection "1; mode=block" always;
# Prevent some browsers from MIME-sniffing a response away from the
# declared Content-Type
add_header X-Content-Type-Options "nosniff" always;
# Disallow the site to be rendered within a frame (clickjacking
# protection)
add_header X-Frame-Options "DENY" always;
# Surrogate Control sets CDN caching behavior.
add_header Surrogate-Control "public, max-age=86400";
add_header Cache-Control "public, max-age=120";