Module not found: Error: Can't resolve 'fs' halts StackBlitz bootstrap
Measuring a bottleneck before optimization When prototyping in StackBlitz, developers often add Node.js core modules (e.g., fs , path , crypto ) to reuse server‑side logic. The goal is to instrument the application with timing calls to identify slow sections before refactoring. Early build‑time failure masks runtime metrics Importing fs triggers a Module not
webpack