HTTP 302 Found vs 499 Client Closed Request
HTTP 302 (Found) is a 3xx Redirection response, while 499 (Client Closed Request) 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, 499 means that a non-standard status code used by Nginx when the client closes the connection before the server responds.
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
A non-standard status code used by Nginx when the client closes the connection before the server responds.
When You See It
In Nginx logs when clients timeout or navigate away before receiving the response.
How to Fix
Optimize server response times. Check for slow upstream services.
Key Differences
302 is a 3xx Redirection response, while 499 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 499: A non-standard status code used by Nginx when the client closes the connection before the server responds.
You encounter 302 when during A/B testing, temporary maintenance pages, or geo-based redirects.
You encounter 499 when in Nginx logs when clients timeout or navigate away before receiving the response.
When to Use Which
For 302 (Found): Follow the Location header. Note: browsers may change POST to GET on redirect. For 499 (Client Closed Request): Optimize server response times. Check for slow upstream services.