<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Caching on Codes</title><link>https://codes.metacog.co.kr/tags/caching/</link><description>Recent content in Caching on Codes</description><generator>Hugo -- gohugo.io</generator><language>en</language><copyright>© {year} jeonck. Distributed under [MIT](https://opensource.org/licenses/MIT).</copyright><lastBuildDate>Sun, 20 Sep 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://codes.metacog.co.kr/tags/caching/index.xml" rel="self" type="application/rss+xml"/><item><title>Search still returned old results after deploy — it wasn't the service worker, it was max-age=600</title><link>https://codes.metacog.co.kr/posts/stale-after-deploy-blame-http-cache-not-the-service-worker/</link><pubDate>Sun, 20 Sep 2026 00:00:00 +0000</pubDate><guid>https://codes.metacog.co.kr/posts/stale-after-deploy-blame-http-cache-not-the-service-worker/</guid><description>A static site had just gained a service worker, so when a freshly added search entry didn&amp;rsquo;t show up, PWA was the obvious suspect. The worker was innocent; GitHub Pages&amp;rsquo; ten-minute HTTP cache on the JSON index was the cause, and the fix is a build-versioned URL in the HTML.</description></item></channel></rss>