Contact: ${vhost.get('contact', repo.libs.defaults.security_email)}
Expires: ${vhost.get('expires', expiry)}
Preferred-Languages: ${','.join(sorted(vhost.get('lang', repo.libs.defaults.security_lang)))}
Canonical: ${proto}://${domain}/.well-known/security.txt
% for key, value in sorted(vhost.items()):
%  if key[0].isupper():
${key}: ${value}
%  endif
% endfor