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Add RFC 9440 mTLS fields to IncomingRequestCfPropertiesTLSClientAuth#6744

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zakcutner wants to merge 1 commit intocloudflare:mainfrom
zakcutner:cf-rfc9440-mtls-fields
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Add RFC 9440 mTLS fields to IncomingRequestCfPropertiesTLSClientAuth#6744
zakcutner wants to merge 1 commit intocloudflare:mainfrom
zakcutner:cf-rfc9440-mtls-fields

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Adds four new fields to type the RFC 9440 mTLS certificate properties now exposed on request.cf.tlsClientAuth: certRFC9440, certRFC9440TooLarge, certChainRFC9440, and certChainRFC9440TooLarge. Matching placeholder values are added to IncomingRequestCfPropertiesTLSClientAuthPlaceholder.

See the RFC 9440 mTLS fields changelog post.

Adds four new fields to type the RFC 9440 mTLS certificate properties
now exposed on `request.cf.tlsClientAuth`: `certRFC9440`,
`certRFC9440TooLarge`, `certChainRFC9440`, and
`certChainRFC9440TooLarge`. Matching placeholder values are added to
`IncomingRequestCfPropertiesTLSClientAuthPlaceholder`.

See the [RFC 9440 mTLS fields changelog post][changelog].

[changelog]: https://developers.cloudflare.com/changelog/post/2026-03-27-rfc9440-mtls-fields/
@zakcutner zakcutner requested review from a team as code owners May 8, 2026 22:24
@zakcutner zakcutner requested a review from petebacondarwin May 8, 2026 22:24
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