Http error: 411 – Length Required

A 411 Length Required status code indicates that the server refuses to accept the request without a valid Content-Length header field. This status code is similar to 400 Bad Request, but in this case, the server is specifically rejecting the request because it does not include a Content-Length header field.

411 errors are often caused by misconfigured server settings or invalid user input. For example, a user might try to upload a file that is too large for the server to accept.

The following are some example scenarios that can cause a 411 Length Required error:

• The user tries to upload a file that is too large for the server to accept.
• The server is configured to require a Content-Length header field, but the user’s request does not include one.
• The user’s request includes a Content-Length header field, but the value is invalid.

RFC: 7231 Section 6.5.10

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