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by davalapar 2375 days ago
If the server got an issue with your request it can return 400 (Bad Request), which means that the server has received it successfully before acknowledging it as a bad one.

Even then, if the server returns 400 (Bad Request) the server can still attach a response body to that, in plain text/plain, application/octet-stream or even application/json, which could contain elaborate information.