214 Transformation Applied

The HTTP 214 Transformation Applied warning code indicates a proxy or intermediary modified the response body. The code is attached to the Warning header in the HTTP response.

Example

An example of this is data Compression, which changes the Content-Encoding header.

Warning: 214 www.example.re "Lossy compression applied"

See also

• RFC 7234: HTTP Caching (obsoleted)
• RFC 9111: HTTP Caching
• 203
• Warning
• Content-Encoding
• HTTP status codes