400 Bad Request

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The HyperText Transfer Protocol (HTTP) 400 Bad Request response status code indicates that the server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).

The client should not repeat this request without modification.


400 Bad Request 


Specification Title
RFC 7231, section 6.5.1: 400 Bad Request Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content

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