gaining access token through facebook Auth

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i have attempted to follow the facebook authentication tutorial:
https://doc.photonengine.com/en-us/pun/current/connection-and-authentication/authentication/pun-and-facebook-custom-authentication.

everything works fine when i build the game and a dialog box is displayed which would require an acess token, i click the link and it takes to a page where i retrieve the acess key which i paste and it logs in and loads the next scene.

i am confused at this step because when i try and build the program(windows) outside the editor nothing happens, there is no link to a facebook site to login or whatever so how do i retrieve the access token outside of the editor?

//dialog box im referring to:
https://imgur.com/a/Niobwfg