HTTP 201 Created vs 520 Web Server Returned an Unknown Error
HTTP 201 (Created) is a 2xx Success response, while 520 (Web Server Returned an Unknown Error) is a 5xx Server Error response. 201 indicates that the request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity. In contrast, 520 means that cloudflare-specific. The origin server returned an unexpected response that Cloudflare could not process.
설명
The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
이 코드를 보게 되는 경우
After successfully creating a new user, post, order, or other resource via a REST API.
해결 방법
No fix needed. Check the Location header for the URL of the new resource.
설명
Cloudflare-specific. The origin server returned an unexpected response that Cloudflare could not process.
이 코드를 보게 되는 경우
When Cloudflare receives an empty, unknown, or malformed response from the origin.
해결 방법
Check origin server logs. Ensure responses include proper headers. Verify SSL configuration.
주요 차이점
201 is a 2xx Success response, while 520 is a 5xx Server Error response.
HTTP 201: The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
HTTP 520: Cloudflare-specific. The origin server returned an unexpected response that Cloudflare could not process.
You encounter 201 when after successfully creating a new user, post, order, or other resource via a REST API.
You encounter 520 when when Cloudflare receives an empty, unknown, or malformed response from the origin.
언제 어떤 것을 사용할지
For 201 (Created): No fix needed. Check the Location header for the URL of the new resource. For 520 (Web Server Returned an Unknown Error): Check origin server logs. Ensure responses include proper headers. Verify SSL configuration.