Hypertext Transfer Protocol (HTTP) Warn Codes
- Created
- 2014-02-17
- Last Updated
- 2022-06-08
- Available Formats
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XML
HTML
Plain text
Registry included below
HTTP Warn Codes
- Registration Procedure(s)
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IETF Review
- Reference
- [RFC7234]
- Note
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The Warning header field (and the warn codes that it uses) has been obsoleted for HTTP per [RFC9111]. - Available Formats
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CSV
| 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] |