Mark Nottingham

- s-maxage - max-age - Expires - heuristic

Storing incomplete responses

1

A response message is considered complete when all of the octets indicated by the message framing ([RFC7230]) are received prior to the connection being closed. If the request method is...

- only on 200 - invalidates GET responses that could have been selected - matching values

304 with non-matching Etag / LM should not update cache

1

As noticed in https://github.com/whatwg/fetch/issues/950

In theory, a server can disambiguate multiple responses in cache by sending an `ETag`. If we can get a cache into a state where it holds multiple valid, stale responses...

- can forward or send a previously stored response - can retry?

MUST NOT be evaluated

MUST NOT be combined with headers

Shouldn't be cached (and headers shouldn't be either)