Strict CORS Policy for Vercel Preview + Testnet

[Cedarich]

Complexity Score: 100

Description

Allow Vercel preview deployments to call the backend safely without widening CORS too much.

Requirements

• Support an allowlist-based CORS config for preview + production frontends.
• Keep sensitive/admin endpoints protected regardless of CORS.
• Add tests for expected allow/deny behavior.

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[Sendi0011]

@Sendi0011 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Gm team, i will like to work on this, i am a frontend/smartcontract developer with experience skill solving issues like this. i am also an active Open source contributor.
ETA: 4 hours

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Sendi0011 to this issue.

[drips-wave]

Congratulations, @Sendi0011! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @Sendi0011: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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