HTTP 203 Non-Authoritative Information vs 426 Upgrade Required
HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 426 (Upgrade Required) 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, 426 means that the server refuses to perform the request using the current protocol but might after the client upgrades to a different protocol.
Beschreibung
The response payload has been modified by a transforming proxy from the origin server's 200 response.
Wann Sie es sehen
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
Wie man es behebt
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
Beschreibung
The server refuses to perform the request using the current protocol but might after the client upgrades to a different protocol.
Wann Sie es sehen
When a server requires HTTPS or a newer protocol version.
Wie man es behebt
Switch to the protocol specified in the Upgrade response header.
Wesentliche Unterschiede
203 is a 2xx Success response, while 426 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 426: The server refuses to perform the request using the current protocol but might after the client upgrades to a different protocol.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 426 when when a server requires HTTPS or a newer protocol version.
Wann welchen verwenden
For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content. For 426 (Upgrade Required): Switch to the protocol specified in the Upgrade response header.