Stop the White Screen of Death: Master Next.js Error Boundaries 🛡️

The Fragility of the React Tree One of the most dangerous behaviors of a React application is how it handles unhandled JavaScript exceptions. By default, if a single component throws an error (e.g., trying to read .map() on an undefined API response), React instantly unmounts the entire component tree. For a B2B SaaS user looking at an intricate dashboard, a failing weather widget will cause the entire screen to go completely blank—the dreaded "White Screen of Death." At Smart Tech Devs, we arch