The server refuses to accept the request without a defined Content-Length.
The client MAY repeat the request if it adds a valid Content-Length header field containing the length of the message body in the request message.
Client Error
411 Length Required
Source: RFC7231 Section 6.5.10
References for code 411
- Rails HTTP Status Symbol
:length_required - Go HTTP Status Constant
http.StatusLengthRequired - Symfony HTTP Status Constant
Response::HTTP_LENGTH_REQUIRED - Python 2 HTTP Status Constant
httplib.LENGTH_REQUIRED - Python 3+ HTTP Status Constant
http.client.LENGTH_REQUIRED - Python 3.5+ HTTP Status Constant
http.HTTPStatus.LENGTH_REQUIRED