Then I copy and pasted the in browser url tab. But it is resulting blank page. No errors and messages. What am i doing wrong in this? I also tried with different redirect_uri, but it results same blank page.
Please see the below attached screenshot of the response I got.
You seem to be getting a number of CORS issues which happens when you try and access an endpoint from client-side and the endpoint is locked down to not allow that. However I don’t expect you to receive that issue for this. I also can click on the link above and get to the portal picker so I can’t seem to replicate it on my end.