精选理由
Cloudflare 这个新功能能直接覆盖源站返回的缓存相关头部，不用改服务器配置就能控制哪些内容被缓存，挺实用的。
Cloudflare 发布了 Cache Response Rules，允许用户在不修改源服务器的情况下，覆盖 Set-Cookie 或 Cache-Control 等响应头部的缓存策略。该功能可防止因这些头部意外回源，提升缓存命中率。适用于需要对特定 URL 或响应条件设置自定义缓存规则的场景。
原文 · Cloudflare Blog
Introducing Cache Response Rules
Perhaps you’ve seen something that should sail out of cache get dragged back to the origin by a stray Set-Cookie or Cache-Control, headers that can be hard to change on the origin itself. Cache Response Rules is the fix, applied at the right time.