HTTP 302 Found vs 411 Length Required
HTTP 302 (Found) is a 3xx Redirection response, while 411 (Length Required) is a 4xx Client Error response. 302 indicates that the resource temporarily resides at a different URL. The client should continue using the original URL for future requests. In contrast, 411 means that the server refuses to accept the request without a Content-Length header.
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.
Description
The server refuses to accept the request without a Content-Length header.
When You See It
When sending a request body without specifying Content-Length.
How to Fix
Include a Content-Length header in your request.
Key Differences
302 is a 3xx Redirection response, while 411 is a 4xx Client Error response.
HTTP 302: The resource temporarily resides at a different URL. The client should continue using the original URL for future requests.
HTTP 411: The server refuses to accept the request without a Content-Length header.
You encounter 302 when during A/B testing, temporary maintenance pages, or geo-based redirects.
You encounter 411 when when sending a request body without specifying Content-Length.
When to Use Which
For 302 (Found): Follow the Location header. Note: browsers may change POST to GET on redirect. For 411 (Length Required): Include a Content-Length header in your request.