Blank Screen on Safari on MacOS

For some reason, my DAG just shows a blank screen after entering credentials when it should be showing the Authentication Method options screen. I also notice it with one of our own web applications that have SSO enabled. This only happens with Safari. Firefox works fine. This looks like a javascript thing. I have tried Google. No luck.

It was Screen Time :roll_eyes:
I had to add https://■■■■■■■■■■■■■■■■■■■■■■■■■■■■ as an exception. Then it worked.

That was https: // api-xxxxxxxx . duosecurity . com