https://answer.freetools.me/tags/%E6%B5%8F%E8%A7%88%E5%99%A8%E7%BC%93%E5%AD%98/ Recent content in 浏览器缓存 on Answer Hugo -- 0.152.2 zh-cn Fri, 06 Mar 2026 21:21:14 +0800 https://answer.freetools.me/expires%E5%B7%B2%E6%AD%BBcache-control%E6%B0%B8%E7%94%9Fhttp%E7%BC%93%E5%AD%98%E5%A4%B4%E9%83%A8%E7%9A%84%E4%BA%8C%E5%8D%81%E5%B9%B4%E6%BC%94%E8%BF%9B%E5%8F%B2/ Fri, 06 Mar 2026 21:21:14 +0800 https://answer.freetools.me/expires%E5%B7%B2%E6%AD%BBcache-control%E6%B0%B8%E7%94%9Fhttp%E7%BC%93%E5%AD%98%E5%A4%B4%E9%83%A8%E7%9A%84%E4%BA%8C%E5%8D%81%E5%B9%B4%E6%BC%94%E8%BF%9B%E5%8F%B2/ 深入剖析HTTP缓存机制从Expires到Cache-Control的演进历程。从时钟同步问题到max-age的相对时间设计,从no-cache的命名陷阱到immutable指令的最佳实践,系统梳理浏览器、CDN、代理服务器如何协同处理缓存头部。基于RFC 2616、RFC 7234、RFC 5861等官方规范和真实生产事故案例,揭示Vary头部爆炸、缓存投毒、Web Cache Deception等安全风险,以及stale-while-revalidate、stale-if-error等现代扩展的实际应用。 https://answer.freetools.me/http/2-server-push%E4%B8%80%E4%B8%AA%E8%A2%AB%E5%AF%84%E4%BA%88%E5%8E%9A%E6%9C%9B%E7%9A%84%E7%89%B9%E6%80%A7%E4%B8%BA%E4%BD%95%E5%9C%A8%E4%B8%83%E5%B9%B4%E4%B8%AD%E8%B5%B0%E5%90%91%E6%B6%88%E4%BA%A1/ Fri, 06 Mar 2026 11:23:16 +0800 https://answer.freetools.me/http/2-server-push%E4%B8%80%E4%B8%AA%E8%A2%AB%E5%AF%84%E4%BA%88%E5%8E%9A%E6%9C%9B%E7%9A%84%E7%89%B9%E6%80%A7%E4%B8%BA%E4%BD%95%E5%9C%A8%E4%B8%83%E5%B9%B4%E4%B8%AD%E8%B5%B0%E5%90%91%E6%B6%88%E4%BA%A1/ 深入剖析HTTP/2 Server Push从诞生到消亡的完整历程。从理论上的\"节省一个RTT\"到实际部署中的缓存盲区、浏览器兼容性噩梦，再到Chrome官方移除决策背后的硬数据：99.95%的HTTP/2连接从未收到过推送流。基于Jake Archibald的实验、RWTH Aachen大学论文、Chrome移除声明等一手资料，揭示这项技术为何成为Web性能优化史上最昂贵的实验之一，以及103 Early Hints如何成为更务实的替代方案。