Redirecting to 127.0.0.1 instead of localhost might fix the following:

• Unable to connect to GitHub from VS2019 #2550

From #2550 (comment)

I disconnected from VPN !
I suppose the last step was the step that solved the problem... hopefully this will help others facing the same issue.

From https://stackoverflow.com/a/57756179

One problem might cause this kind of behavior. If you are connected to a corporate network by VPN, the VPN connection will change the search domain, for example, mycompany.corp.

On the other hand, some systems in the corporate network might register themselves as 'localhost.mycompany.corp' ( this should be a mistake ).

The result is localhost.mycompany.corp will now be resolved to a private IP like 10.xx.xx.xx, and when you tried to access http://localhost:4554/ , the request is sent to 10.xx.xx.xx port 4554, instead of the supposed 127.0.0.1 port 4544.