Mercurial > hg > nginx-quic
diff src/event/ngx_event_openssl.c @ 5935:1573fc7875fa
Cache: send conditional requests only for cached 200/206 responses.
RFC7232 says:
The 304 (Not Modified) status code indicates that a conditional GET
or HEAD request has been received and would have resulted in a 200
(OK) response if it were not for the fact that the condition
evaluated to false.
which means that there is no reason to send requests with "If-None-Match"
and/or "If-Modified-Since" headers for responses cached with other status
codes.
Also, sending conditional requests for responses cached with other status
codes could result in a strange behavior, e.g. upstream server returning
304 Not Modified for cached 404 Not Found responses, etc.
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
author | Piotr Sikora <piotr@cloudflare.com> |
---|---|
date | Wed, 26 Nov 2014 18:35:37 -0800 |
parents | 2c33ed82cde1 |
children | ee941e49bd88 |