Frontend AI Walk

Jul 1, 2026 · Frontend Development

AI Misses the Mark: Cascader Expands 40→420 Lines in Micro‑Frontend – 5 Popup Pitfalls & Full‑Screen Fix

The author recounts a half‑day debugging saga where a Cascader component in a micro‑frontend ballooned from about 40 to 420 lines because rc‑trigger’s hidden DOM, incorrect coordinate calculations, and missing scroll listeners broke the popup layer, and presents a full‑screen container solution plus a checklist of five common pitfalls.