Setting Cache-Control headers to "max-age=0, no-cache, no-store, no-transform, private".

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

debian/apache2.postinst

@@ -56,7 +56,7 @@ enable_default_conf()
 	if is_fresh_install $@ ; then
 		for conf in charset localized-error-pages other-vhosts-access-log \
 				security serve-cgi-bin \
-				csp hsts modern-cookies modern-ssl ; do
+				csp hsts modern-cookies modern-ssl no-cache ; do
 			a2enconf -m -q $conf
 		done
 	fi

debian/config-dir/conf-available/no-cache.conf

@@ -0,0 +1,5 @@
+# /etc/apache2/conf-available/no-cache.conf
+
+<IfModule mod_headers.c>
+	Header always set Cache-Control "max-age=0, no-cache, no-store, no-transform, private"
+</IfModule>