411
Length Required
Client ErrorThe request did not specify the length of its content, which the resource requires.
Category: 4xx Client Errors Standard: RFC 9110 First Appeared: HTTP/1.1
What is 411 Length Required?
HTTP 411 Length Required is a 4xx status code. The request did not specify the length of its content, which the resource requires.
Client Request
Server
Request Rejected
Common Causes
The request was malformed or invalid
The client lacks permission or valid authentication
The requested resource or route does not exist
A precondition or content requirement was not met
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