Apparently when Google Analytics is filtered - the page does not work. I had to use a web proxy to go through the wizard.
Finally when I was redirected to my Dashboard - I got other errors in the browser console about CSP headers:
The Content Security Policy … was delivered in report-only mode, but does not specify a ‘report-uri’; the policy will have no effect. Please either add a ‘report-uri’ directive, or deliver the policy via the ‘Content-Security-Policy’ header.