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Browser errors – occurs when browser has some errors in configurations or settings.Meanwhile, there may be following reasons of 504 gateway timeout:

This is usually happens, when the web server is down for some reason. If the latter was unable to receive a response from Apache, within a specified period of time, it sends the client a server error message 504 Gateway Timeout instead of the required result. Servers that have Apache installed as a backend and Nginx as a frontend often generate this error code.The user works with the server according to the following plan: the client sends a request to the server, which is not sent directly to Apache, but is sent through nginx (this is a kind of a request distributor). This error is an HTTP status code, which means that one server did not receive a timely response from another server that it accessed, trying to load a web page or execute a browser request. In this article we will discuss “ 504 gateway timeout“. In our job as system administrators and DevOps engineers we help our customers with different type of errors on their websites.