max-age，no-Cache，必须在Cache-Control Header上重新验证，这在这里需要预先设定？

Question

Cache-Control：max-age = 86400，no-store，must-revalidate，no-cache

这是服务器为JS文件设置的响应标头。

是否意味着在重新验证之前，响应缓存了86400秒？

以上哪一个优先，什么是resiult？

Answer 1

看起来no-cache优先于所有。 HTTP1.1规范说＆＃34; If the no-cache directive does not specify a field-name, then a cache MUST NOT use the response to satisfy a subsequent request without successful revalidation with the origin server.＆＃34; 请参阅http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.1

它还说＆＃34; The max-age directive on a response implies that the response is cacheable (i.e., "public") unless some other, more restrictive cache directive is also present.＆＃34; 请参阅http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.3

以上所有内容均适用于HTTP / 1.1。