elixir-mint / mint / 5f4e7d70f5a72f770b5006e1845f666e7f9c52df-PR-518

90%

main: 91%

Pull #518

github

Reject HTTP/2 responses with connection-specific headers or unsupported status codes

RFC 9113 8.2.2 makes a message containing connection, keep-alive,
proxy-connection, transfer-encoding or upgrade malformed, which is a
stream error. The te header is only allowed in requests, so it's
rejected in responses and trailers as well.

A :status of 101 is not supported in HTTP/2 (RFC 9113 8.6) and used to
be delivered as an interim response, and :status values below 100 were
accepted although HTTP/1 rejects them; both are now stream errors.

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