<IfModule mod_headers.c>
Header set X-Clacks-Overhead "GNU Terry Pratchett"
- Header always setifempty X-Content-Type-Options "nosniff"
- Header always setifempty X-Frame-Options "sameorigin"
- Header always setifempty Referrer-Policy "no-referrer"
- # Header always setifempty X-Xss-Protection "1; mode=block"
- Header always setifempty X-Xss-Protection "1"
+ Header always set X-Content-Type-Options "nosniff" "expr=-z %{resp:X-Content-Type-Options}"
+ Header always set X-Frame-Options "sameorigin" "expr=-z %{resp:X-Frame-Options}"
+ Header always set Referrer-Policy "no-referrer" "expr=-z %{resp:Referrer-Policy}"
+ # Header always set X-Xss-Protection "1; mode=block" "expr=-z %{resp:X-Xss-Protection}"
+ Header always set X-Xss-Protection "1" "expr=-z %{resp:X-Xss-Protection}"
</IfModule>