From 47 to 75 Commits: How a Single _headers File Broke My Brain (and My App) for 8 Hours

A developer spent 8 hours troubleshooting a security issue with their PWA, caused by a misconfigured _headers file. The issue was due to strict browser sandboxing rules for local-first WASM. The solution was to correct the _headers file syntax. The developer recommends taking breaks and not overcomplicating issues.