The subject of what is http 401 encompasses a wide range of important elements. 401 Unauthorized - HTTP | MDN. The HTTP 401 Unauthorized client error response status code indicates that a request was not successful because it lacks valid authentication credentials for the requested resource. How to Fix a 401 Unauthorized Error? The "401 Unauthorized Error" is a standard HTTP response status code that indicates that a request sent to a server cannot be completed because it lacks valid authentication credentials.
What is HTTP 401 Error and How to Fix it - DEV Community. The HTTP 401 Unauthorized error is a status code 401 returned by the server when authentication fails. It means the server has received your request, but it refuses to authorize it. 401 Error: What Is It, Common Causes and How to Fix It.
HTTP error 401 means a user doesn’t have permission to access a target resource, usually a password-protected website. The response includes a WWW-Authenticate header, which tells the browser what authentication method is required.
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