SSLCertificateFile /etc/ssl/certs/<%= @certificate %>.pem
SSLCertificateKeyFile /etc/ssl/private/<%= @certificate %>.key
SSLCertificateChainFile /etc/ssl/certs/rapidssl.pem
-<% if node[:lsb][:release].to_f >= 14.04 -%>
+<% if node[:lsb][:release].to_f >= 14.04 -%>
SSLUseStapling On
SSLStaplingResponderTimeout 5
SSLStaplingReturnResponderErrors off
SSLStaplingCache shmcb:${APACHE_RUN_DIR}/ssl_ocspcache(512000)
+
+Header setifempty Strict-Transport-Security max-age=86400 env=HTTPS
+<% else -%>
+Header set Strict-Transport-Security max-age=86400 env=HTTPS
<% end -%>