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Fifty imported Under The Hood essays on frontend, browser behavior, JavaScript internals, and AI engineering. More coming through the pipeline.

The Scroll Performance Problem CSS Solved That JavaScript Made Worse

July 3, 2026

How the Browser Decides Your Font Is \"Loaded\"

July 1, 2026

Why localStorage Silently Fails in Safari

June 29, 2026

Why typeof null === ‘object’ Is a Bug That Can Never Be Fixed

June 26, 2026

How import() Changed Frontend Architecture and (almost) Nobody Noticed

June 24, 2026

The structuredClone You Should Have Been Using Instead of JSON Hacks

June 22, 2026

Your Service Worker Is Serving Stale Code (And Your Users Are Stuck in a Time Warp)

June 5, 2026

The rem vs px Illusion: How Browsers Actually Scale Typography for Accessibility

June 3, 2026

Why I Published an npm Package Just to Parse a String to a Boolean

June 1, 2026

The DistilBERT Ceiling: The Exact Moment You Must Evict Client-Side AI to a Web Worker

May 29, 2026

Size Doesn’t Matter: Why a 39M Parameter AI Model Is Slower Than a 110M One in the Browser

May 27, 2026

I Benchmarked Running AI Models Directly in the Browser. It Completely Trashed My Core Web Vitals.

May 26, 2026