5×× 服务器错误

504 Gateway Timeout 网关超时

服务器在充当网关或代理时，没有从需要访问的上游服务器收到及时响应以完成请求.

• Source: RFC7231 Section 6.6.5

504 代码参考

Rails HTTP Status Symbol :gateway_timeout

Go HTTP Status Constant http.StatusGatewayTimeout

Symfony HTTP Status Constant Response::HTTP_GATEWAY_TIMEOUT

Python2 HTTP Status Constant httplib.GATEWAY_TIMEOUT

Python3+ HTTP Status Constant http.client.GATEWAY_TIMEOUT

Python3.5+ HTTP Status Constant http.HTTPStatus.GATEWAY_TIMEOUT