The HyperText Transfer Protocol (HTTP)
502 Bad Gateway server error response code indicates that the server, while acting as a gateway or proxy, received an invalid response from the upstream server.
Note: A Gateway might refer to different things in networking and a 502 error is usually not something you can fix, but requires a fix by the web server or the proxies you are trying to get access through.
502 Bad Gateway
|RFC 7231, section 6.6.3: 502 Bad Gateway||Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content|
The information shown below has been pulled from MDN's GitHub (https://github.com/mdn/browser-compat-data).
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