id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
964	Expires header incorrectly prioritised over Cache-Control: max-age	cbranch@…		"When using nginx as a caching reverse proxy, items may be cached for the wrong amount of time if the Expires header is inconsistent with max-age. Caching will be disabled if the Expires header value is in the past or malformed.

Per RFC 2616 section 14.9.3, max-age takes precedence over Expires. However, nginx prefers whichever header/directive occurs first in the response, which causes unexpected results when migrating to nginx from an RFC-compilant caching reverse proxy.

A minimally-reproducible config is attached. Observe that no file is cached when accessing http://127.0.0.2:8080/fail, but a file is cached when accessing http://127.0.0.2:8080/success."	defect	closed	minor		nginx-core	1.9.x	fixed			Linux cbranch-vm 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt25-2 (2016-04-08) x86_64 GNU/Linux	"nginx version: nginx/1.9.7
built by gcc 4.9.2 (Debian 4.9.2-10)"