Logging in - site can't provide a secure connection

[jroachgit]

Hi,
I'm getting to the login page, selecting my gmail account that has been assigned as a tester of the API. Prior to this it would tell me that the account isn't a tester on the project.
However, I get the following error:
This site can’t provide a secure connection127.0.0.1 sent an invalid response.
ERR_SSL_PROTOCOL_ERROR
This is from: https://127.0.0.1:42813/callback?code=

Any suggestions?
I've turned off Brave's shield thing.

[thefullstackalchemist]

I think, that is something to do in consent screen. where you need to add a email as part of the tester so that it will allow it to login the app. Else it will throw error. Also, It will say not secure sort of message yet we can click continue to login