Meaning of header fields Date and Age:

[Greg Robson-Garth]

What do these fields mean.   According to “the spec”, RFC2616 the Date the date/time the message was generated at the origin server.   1. Date In a cache server, assuming the message is now resident in the cache and has been requested by a HTTP client. Should the cache server send with message with:   a)       the Date header as it received it from the origin server b)       generate a new Date header being the date/time the message is sent from the cache and calculate the age as the residence time   2. Age Does the Age header represent the seconds relative to the date/time in the date header. So if the Age is say Age: 60 and the time is 03:00:00, then its birth time (for a want of a better word) is 02:59:00. If this is the case, then surely the correct calculation of corrected_received_age in 13.2.3 should be               now – date_value + age_value   Can anyone comment ?   --Greg Author, FreeProxy