There were too many redirections.
social.msdn.microsoft.com › Forums › en-USJan 29, 2019 · Answers. A common issue is misconfiguring authentication ie trying to go to a page and then being redirect to the login page which is not public causing then to be redirected again and again to the login page. Use F12 Network in your browser (and the "preserve log" option) to see which page (s) are involved.