Expires HTTP header contains the date/time after which the
response is considered expired.
Invalid expiration dates with value 0 represent a date in the past and mean that the resource is already expired.
Note: If there is a
s-maxage directive in the response,
Expires header is ignored.
An HTTP-date timestamp.
Expires: Wed, 21 Oct 2015 07:28:00 GMT
|HTTP Caching |
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