Ghost self-hosted supported browsers

My ghost site subscription signup buttons are working on Firefox but not Edge, Chrome any ideas?

I figured this out. I used Cloudflare Zero trust to lockdown …\ghost admin user. Enabling this on Cloudflare blocks the …/#/portal/signup page from loading the signup page in the browser. I had to enable the code in the browser to see the error.

Is there going to be 2FA authentication for the ghost admin or is it necessary? I am new to Ghost, so maybe I am being overly cautious.