I want to add a custom header to a phpbb installation without touching the code. (Using .htaccess)
The header is:
Strict-Transport-Security: max-age
see http://httpd.apache.org/docs/2.0/mod/mod_headers.html
Header add Strict-Transport-Security "max-age=157680000"
http://httpd.apache.org/docs/2.0/mod/mod_headers.html