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Tuesday, May 21st 2024

OPTIONS Allowlist

Posted by

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Kit Foster

Software Engineer

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Brooke Mosby

Software Engineer

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Kevin Rupert

Product Designer

The OPTIONS Allowlist improves the security of deployments on Vercel by limiting CORS preflight OPTIONS requests to specified paths.

Before the OPTIONS Allowlist, all OPTIONS requests to deployments bypassed Deployment Protection in compliance with CORS specifications.

The new OPTIONS Allowlist feature is available on all plans.

Learn more about the OPTIONS Allowlist.