The "max-stale" request directive indicates that the client is willing to accept a response that has exceeded its freshness lifetime.
The "max-stale" request directive indicates that the client is willing to accept a response that has exceeded its freshness lifetime. If max-stale is assigned a value, then the client is willing to accept a response that has exceeded its freshness lifetime by no more than the specified number of seconds. If no value is assigned to max-stale, then the client is willing to accept a stale response of any age.
This directive uses the token form of the argument syntax: e.g., 'max-stale=10' not 'max-stale="10"'. A sender SHOULD NOT generate the quoted-string form.
https://tools.ietf.org/html/rfc7234#section-5.2.1.2
The "no-transform" request directive indicates that an intermediary (whether or not it implements a cache) MUST NOT transform the payload, as defined in Section 5.7.2 of [RFC7230].
The "no-transform" request directive indicates that an intermediary (whether or not it implements a cache) MUST NOT transform the payload, as defined in Section 5.7.2 of [RFC7230].
// https://tools.ietf.org/html/rfc7234#section-5.2.1.6
The "no-transform" response directive indicates that an intermediary (regardless of whether it implements a cache) MUST NOT transform the payload, as defined in Section 5.7.2 of [RFC7230].
// https://tools.ietf.org/html/rfc7234#section-5.2.2.4
The "only-if-cached" request directive indicates that the client only wishes to obtain a stored response.
The "only-if-cached" request directive indicates that the client only wishes to obtain a stored response. If it receives this directive, a cache SHOULD either respond using a stored response that is consistent with the other constraints of the request, or respond with a 504 (Gateway Timeout) status code. If a group of caches is being operated as a unified system with good internal connectivity, a member cache MAY forward such a request within that group of caches.
https://tools.ietf.org/html/rfc7234#section-5.2.1.7
Finds the instance of MaxAge.