REST: Ignore If...Since if If...Match header exists
REST: Ignore If...Since if If...Match header exists

The If-Modified-Since and If-Unmodified-Since headers are
only used when If-None-Match or If-Match were not found,
respectively. The latter are preferred by the standard
and the former is only there for compatibility with older
clients.

kivra/cowboy,ninenines/cowboy,rabbitmq/cowboy,hairyhum/cowboy,turtleDeng/cowboy,CrankWheel/cowboy,K2InformaticsGmbH/cowboy,bsmr-erlang/cowboy