+ ignore-no-cache ignores any ``Pragma: no-cache'' and
+ ``Cache-control: no-cache'' headers received from a server.
+ The HTTP RFC never allows the use of this (Pragma) header
+ from a server, only a client, though plenty of servers
+ send it anyway.
+
+ ignore-no-store ignores any ``Cache-control: no-store''
+ headers received from a server. Doing this VIOLATES
+ the HTTP standard. Enabling this feature could make you
+ liable for problems which it causes.
+
+ ignore-private ignores any ``Cache-control: private''
+ headers received from a server. Doing this VIOLATES
+ the HTTP standard. Enabling this feature could make you
+ liable for problems which it causes.
+
+ ignore-auth caches responses to requests with authorization,
+ irrespective of ``Cache-control'' headers received from
+ a server. Doing this VIOLATES the HTTP standard. Enabling
+ this feature could make you liable for problems which
+ it causes.
+