usage: refresh_pattern [-i] regex min percent max [options]
By default, regular expressions are CASE-SENSITIVE. To make them case-insensitive, use the -i option.
'Min' is the time (in minutes) an object without an explicit expiry time should be considered fresh. The recommended value is 0, any higher values may cause dynamic applications to be erroneously cached unless the application designer has taken the appropriate actions.
'Percent' is a percentage of the objects age (time since last modification age) an object without explicit expiry time will be considered fresh.
'Max' is an upper limit on how long objects without an explicit expiry time will be considered fresh. The value is also used to form Cache-Control: max-age header for a request sent from Squid to origin/parent.
options: override-expire override-lastmod reload-into-ims ignore-reload ignore-no-store ignore-private max-stale=NN refresh-ims store-stale |