Website incorrectly reports cookie restriction

Description of the issue:
Trying to login on https://help.firewalla.com/hc/en-us site reports browser restricts cookie usage even when Brave shields are down.

How can this issue be reproduced?

  1. Go to https://help.firewalla.com/hc/en-us
  2. Try to login

Expected result:
I can enter username /password without cookie warning. I have to usother browser to login.

Brave Version( check About Brave):

Version 1.14.3 (20.02.01.06)

Mobile Device details
iPad Air

Additional Information:
Latest iOS.

Do you have cookie blocking enabled in settings?

I do not have cookie blocking turned on.

Do you have “Block Scripts” enabled for this site?
Can you login if you turn all of the shields off?