Cloudflare Rocket Loader, Polish and Mirage: When They Hurt
What Rocket Loader, Polish, Mirage, Auto Minify and Early Hints each do, when they help a legacy site, and when they break or slow a modern one.
Writing
Cloudflare: what we have had to fix
3 write-ups from production, newest first. Each one is a problem hit on a real project and how it was diagnosed and fixed.
LCP Regression After Cloudflare Polish WebP on Next.js
LCP doubled after enabling Cloudflare Polish on a Next.js site? Here is why double-encoding hurts and the bypass rule that brings LCP back under 2 seconds.
Cloudflare Rocket Loader Breaking Next.js INP Scores Fix
Cloudflare Rocket Loader tanking INP on a Next.js site? Here is why it delays React hydration on mobile and the page rule that restores interactivity.