What happens to the ETag when you enable gzip/brotli in Apache? Why ETag revalidation silently stops working for compressed content, the three places Apache 2.4.68 violates RFC 9110, the version history behind it, and the one-line config that fixes it.
How Apache generates ETag and Last-Modified, how it evaluates If-None-Match and If-Modified-Since (the RFC 9110 rule vs Apache's actual AND logic), what happens when the two validators disagree, and the CDN mystery where If-None-Match unexpectedly did nothing.
Node.js resolves modules by walking up the directory tree looking for node_modules/package folder. This post illustrates the different folder structure influence module resolution, why symlinks (npm link, pnpm) can flip the result.
assert to withIf you've been using import ... assert { type: "json" } in Node.js, it's time to update! This blog post explains the transition from Import Assertions (assert) to Import Attributes (with).