Callback URL mismatch when changing the allowed callback URL of the application

Hi @stephanie.chamblee , thanks for replying so promptly.

I am just wondering, within the context of an angular application, where exactly would these take place? My current thinking is that I would use an RNG and pass that value in the localStorage.setItem() function on the first page the user goes onto. Would steps 2 and 3 be done on the same login button component that the user would select to open the universal login screen?