HTTP 203 Non-Authoritative Information vs 302 Found
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HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 302 (Found) is a 3xx Redirection response. 203 indicates that the response payload has been modified by a transforming proxy from the origin server's 200 response. In contrast, 302 means that the resource temporarily resides at a different URL. The client should continue using the original URL for future requests.
Description
The response payload has been modified by a transforming proxy from the origin server's 200 response.
When You See It
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
How to Fix
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
Description
The resource temporarily resides at a different URL. The client should continue using the original URL for future requests.
When You See It
During A/B testing, temporary maintenance pages, or geo-based redirects.
How to Fix
Follow the Location header. Note: browsers may change POST to GET on redirect.
Key Differences
203 is a 2xx Success response, while 302 is a 3xx Redirection response.
HTTP 203: The response payload has been modified by a transforming proxy from the origin server's 200 response.
HTTP 302: The resource temporarily resides at a different URL. The client should continue using the original URL for future requests.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 302 when during A/B testing, temporary maintenance pages, or geo-based redirects.
When to Use Which
For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content. For 302 (Found): Follow the Location header. Note: browsers may change POST to GET on redirect.