Expiration expiration

Client cache time to live. Number of hours until expiration. Used to manage client and proxy server caching.

See catalog::Expiration for details.

Properties section-dcdd44cc3f0a4849b968dbd4f1e3768a

Real number, -2, -1, 0, or greater. Number of hours until expiration since the response image was generated. Set to 0 to always expire the response image immediately, which effectively disables client caching. Set to -1 to mark as never expire; in this case the server always returns 403 status in response to conditional GET requests without checking whether the file has actually changed. Set to -2 to use the default provided by attribute::Expiration.

Default section-fb8ea80975034b49af7510764758f123

attribute::Expiration is used if the field is not present, if the value is -2, or if the field is empty.

See also section-a0d3dab0f6db49b58f1f935d3bdea2fd

attribute::Expiration , catalog::Expiration, req=