Описание тега bad-gateway
Bad gateway refers to http error 502 which is mean that a server which is try to fulfill the client request received an invalid response from upstream server
Bad gateway refers to http error 502 which is mean that a server which is try to fulfill the client request received an invalid response from upstream server.
For more information look for this article: https://www.lifewire.com/502-bad-gateway-error-explained-2622939