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.
描述
The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
何时出现
After successfully creating a new user, post, order, or other resource via a REST API.
如何修复
No fix needed. Check the Location header for the URL of the new resource.
描述
Cloudflare-specific. The origin server returned an unexpected response that Cloudflare could not process.
何时出现
When Cloudflare receives an empty, unknown, or malformed response from the origin.
如何修复
Check origin server logs. Ensure responses include proper headers. Verify SSL configuration.
主要区别
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.
何时使用哪个
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.