The HyperText Transfer Protocol (HTTP) 400 Bad Request response status code indicates that the server could not understand the request due to invalid syntax.
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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https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/400