[fetch] Why not support Basic Authentication in the API? (#162)

A lot of services use Basic auth (e.g. webcams etc), and `XMLHTTPRequest` has built-in support for it through user and password.

Why doesn't fetch provide support? The result is having to calculate the `Authentication` header yourself, meaning adding one version (with a polyfill Base64 for IE9) in the browser and using a different version for NodeJS.

It is only a few lines of code but it is annoying, whereas fetch in the browser can use the XHR built-in support.

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Reply to this email directly or view it on GitHub:
https://github.com/whatwg/fetch/issues/162