Expose "WWW-Authenticate" header to CORS requests - #641
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Digest auth endpoint is missing the "Access-Control-Expose-Headers: WWW-Authenticate" header in order to correctly support CORS requests. Without it, the browser doesn't allow the client to get the value of the WWW-Authenticate header.
s3anw3
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Aug 11, 2026
…uth POST (#15) Fixes #15. - digest: support SHA-512-256 (RFC 7616) alongside MD5/SHA-256/SHA-512; refactor calculate_digest_response to use a digest_hash_hex helper, removing the 5x duplicated algorithm match arms (postmanlabs/httpbin#697). - CORS: expose WWW-Authenticate so browser clients can read the 401 challenge (postmanlabs/httpbin#641). - basic-auth and hidden-basic-auth: accept POST on all four variants (postmanlabs/httpbin#365, #607). Adds test basic_auth_accepts_post. SHA-512-256 verified end-to-end via curl --digest (algorithm=SHA-512-256 -> 200). (#592 qop-omit deferred.) Note: curl does not implement SHA-512 digest auth, so SHA-512 is not testable via curl; its server-side hash path is unchanged by the refactor.
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Digest auth endpoint is missing the "Access-Control-Expose-Headers: WWW-Authenticate" header in order to correctly support CORS requests. Without it, the browser doesn't allow the client to get the value of the WWW-Authenticate header.