CORS issue on Browser during redirect request

Questions OAuth/OIDC
3

Hi Erik,
Many thanks for your response.
I have come across your suggestion in an earlier post, hence mentioned our requirement that the redirect has to be presented from AJAX and not browser.
However I have worked around this by redirecting to our NGINX API gateway but facing a 403.
More details here - 403 error returned on hitting /login/token/redirect

Thanks,
Balaji.G