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NO.
#2f3c058b
Topic
INFRA & SAAS
Source
vercel_blog
Published
2026-05-14 00:00:00
Importance
★ 7/10 — radar 70
`Vercel` adds `Protected Source Maps` for production-only debugging
FIG-0231:1

`Vercel` adds `Protected Source Maps` for production-only debugging

Production source maps can now stay accessible to your team while returning 404 to everyone else. It removes a common tradeoff between readable stack traces and leaking original frontend code, so existing projects should turn it on now.

[ KEY POINTS ]
  1. Browser .map files now sit behind Vercel Authentication, letting internal users fetch them while blocking public access with 404 responses.
  2. New projects get the setting enabled by default, which lowers the chance of accidentally exposing source maps on fresh launches.
  3. Existing projects can enable it in Settings -> Deployment Protection with no redeploy, so rollout cost is near zero.
  4. This keeps production debugging intact with real filenames and line numbers, without leaving unminified source structure open to anyone scraping assets.
Originalvercel.com/changelog/protected-source-maps-ship-browser-source-maps-securelyRead original →

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