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
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