Internet Assigned Numbers Authority

                                                    Hypertext Transfer Protocol (HTTP) Warn Codes

   Created
           2014-02-17

   Last Updated
           2022-06-08

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     * HTTP Warn Codes

HTTP Warn Codes

   Registration Procedure(s)

 IETF Review

   Reference
           [RFC7234]

   Note

 The Warning header field (and the warn codes that it uses) has been
 obsoleted for HTTP per [RFC9111].


   Available Formats
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   Warn Code        Short Description                Reference
   110       Response is Stale                [RFC7234, Section 5.5.1]
   111       Revalidation Failed              [RFC7234, Section 5.5.2]
   112       Disconnected Operation           [RFC7234, Section 5.5.3]
   113       Heuristic Expiration             [RFC7234, Section 5.5.4]
   199       Miscellaneous Warning            [RFC7234, Section 5.5.5]
   214       Transformation Applied           [RFC7234, Section 5.5.6]
   299       Miscellaneous Persistent Warning [RFC7234, Section 5.5.7]

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