See how official Github CLI handles this: <img width="1552" alt="Screen Shot 2020-05-14 at 7 32 06 PM" src="https://user-images.githubusercontent.com/885841/82005215-a4b69780-9619-11ea-803c-d844affffb06.png"> http://127.0.0.1:62792/callback?browser_session_id=9725a29bd99eff9822916673b39775c7d4c4bead&code=114d1a7ebd29b36afc93&state=6e24da083862f90a58b1 https://github.com/cli/cli/blob/d9083200504ddbe8ffe590ef227890423b6668ee/auth/oauth.go#L40
