What’s next in the HTTP caching world
summary
Timeline of HTTP caching from RFC 2616 (1999) through updates in 2014 and 2022 and concrete mechanics for modern stacks clarifies what changes and why: cache directives like Cache-Control and Age, the stale-while-revalidate behavior, and the cache-status fields are explained with numbers and fallbacks. Demo compiles a caddy ESI module, runs kg proxy plus Varnish and CDN examples, serves full.html with ESI includes and resolves a runtime port bug showing the ESI pipeline actually works.
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chapters (10)
- 0:00HTTP caching evolution
- 2:04HTTP 1.1 caching basics
- 5:59Cache-Control directives
- 9:10ESI for dynamic caching
- 13:12ESI caching demo with Caddy
- 18:46HTTP/2 caching improvements
- 20:58Cache invalidation with stale-while-revalidate
- 22:02Cache-Status RFC
- 24:13Multi-layer caching
- 26:03Q&A
