Cache Directive,Reference immutable,[RFC8246] max-age,"[RFC9111, Section 5.2.1.1, 5.2.2.1]" max-stale,"[RFC9111, Section 5.2.1.2]" min-fresh,"[RFC9111, Section 5.2.1.3]" must-revalidate,"[RFC9111, Section 5.2.2.2]" must-understand,"[RFC9111, Section 5.2.2.3]" no-cache,"[RFC9111, Section 5.2.1.4, 5.2.2.4]" no-store,"[RFC9111, Section 5.2.1.5, 5.2.2.5]" no-transform,"[RFC9111, Section 5.2.1.6, 5.2.2.6]" only-if-cached,"[RFC9111, Section 5.2.1.7]" private,"[RFC9111, Section 5.2.2.7]" proxy-revalidate,"[RFC9111, Section 5.2.2.8]" public,"[RFC9111, Section 5.2.2.9]" s-maxage,"[RFC9111, Section 5.2.2.10]" stale-if-error,"[RFC5861, Section 4]" stale-while-revalidate,"[RFC5861, Section 3]"