- From: Koen Holtman <koen@win.tue.nl>
- Date: Fri, 6 Dec 1996 11:03:35 +0100 (MET)
- To: Jeffrey Mogul <mogul@pa.dec.com>
- Cc: advax@triumf.ca, http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com
Jeffrey Mogul:
[...]
>However, because most existing caches were designed before HTTP/1.1,
>and do not expect servers to generate Expires headers (most servers
>apparently do not), they often cache responses that have neither
^^^^^
>a Last-Modified header or an Expires header.
I think there are very few existing 1.0 proxies that cache responses without
a Last-Modified header. Doing would cause problems with a large fraction of
all CGI-based stuff, and this would get noticed very quickly by the cache
maintainer.
I believe the AOL cache does (or did at some point) cache everything for a
few minutes at least, no matter what the headers, but proxies on the `real'
internet generally tend to err on the conservative side.
>-Jeff
Koen.
Received on Friday, 6 December 1996 03:03:15 UTC