422 / Unprocessable Entity (WebDAV) (RFC 4918)

“请求格式正确,但是由于含有语义错误,无法响应。“ — wikipedia

“the server understands the content type of the request entity (hence a 415(Unsupported Media Type) status code is inappropriate), and the syntax of the request entity is correct (thus a 400 (Bad Request) status code is inappropriate) but was unable to process the contained instructions. For example, this error condition may occur if an XML request body contains well-formed (i.e., syntactically correct), but semantically erroneous, XML instructions.“ — ietf

422 / code reference(s)
Rails HTTP Status Symbol
← return