HTTP 203 Non-Authoritative Information vs 422 Unprocessable Content
HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 422 (Unprocessable Content) is a 4xx Client Error response. 203 indicates that the response payload has been modified by a transforming proxy from the origin server's 200 response. In contrast, 422 means that the server understands the content type and syntax, but was unable to process the contained instructions. Common in API validation errors.
描述
The response payload has been modified by a transforming proxy from the origin server's 200 response.
何时出现
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
如何修复
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
描述
The server understands the content type and syntax, but was unable to process the contained instructions. Common in API validation errors.
何时出现
When form validation fails — correct syntax but invalid data (e.g., email format wrong, date in the past).
如何修复
Check the response body for specific validation errors and correct the input data.
主要区别
203 is a 2xx Success response, while 422 is a 4xx Client Error response.
HTTP 203: The response payload has been modified by a transforming proxy from the origin server's 200 response.
HTTP 422: The server understands the content type and syntax, but was unable to process the contained instructions. Common in API validation errors.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 422 when when form validation fails — correct syntax but invalid data (e.g., email format wrong, date in the past).
何时使用哪个
For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content. For 422 (Unprocessable Content): Check the response body for specific validation errors and correct the input data.