Why Am I Getting an 'Unsupported Protocol Scheme' Error When Implementing Basic HTTP Authentication in Go?

Troubleshooting Basic HTTP Auth in Go

In an attempt to implement basic HTTP authentication, a developer encounters an unsupported protocol scheme error. Examining the code snippet provided, the error lies within the request initialization.

req, err := http.NewRequest("GET", "mydomain.example", nil)

The issue arises from the use of an empty protocol scheme. To rectify this error, the request must specify the protocol scheme explicitly. In the case of basic HTTP authentication, the protocol scheme should be "http" or "https".

By specifying the protocol scheme correctly, the request will be sent using the appropriate protocol and bypass the unsupported protocol scheme error:

req, err := http.NewRequest("GET", "http://mydomain.example", nil)

With this correction, the basic HTTP authentication should function as intended. However, it's worth noting that if the website being accessed performs redirects, Go may discard the specified headers. To address this, a custom redirect function can be implemented to re-add the authorization header after redirects.

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