Expires header contains the date/time after which the
response is considered stale.
Invalid dates, like the value 0, represent a date in the past and mean that the resource is already expired.
Cache-Controlheader with the
s-maxagedirective in the response, the
Expiresheader is ignored.
|Header type||Response header|
|Forbidden header name||no|
|CORS-safelisted response header||yes|
An HTTP-date timestamp.
Expires: Wed, 21 Oct 2015 07:28:00 GMT
|RFC 7234, section 5.3: Expires||Hypertext Transfer Protocol (HTTP/1.1): Caching|
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