Protected Source Maps: Secure browser source maps access
Source maps can now be restricted to team members only using Vercel Authentication, preventing unauthorized access to production debugging information. New projects have this protection enabled by default, and existing projects can opt in via Settings without redeployment.
You can now restrict access to production source maps with , which puts browser files behind . Your team can fetch them; everyone else gets a 404.Protected Source MapsVercel Authentication.map
Source maps are how you debug minified production code. They give you readable stack traces and your original source code, with the real filenames and line numbers intact.
New projects have Protected Source Maps enabled by default. Existing projects can opt in from Settings → Deployment Protection, with no redeploy needed.
Learn more in the .documentation
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