Broken safari on Catalina 10.15.7?

Hi all,

I recently built a hackintosh with 10700k and Asrock z490 itx/tb3 board.

With opencore 0.6.2 and Catalina 10.15.7, everything works well except two things.

The first problem is safari cannot load websites with javascript. (especially, I cannot log in Gmail !!) This is problematic since I cannot add google calendar to Calendar app as adding google account in internet accounts requires me to sign in via Safari. I suspected it's safari 14's problem.. so I used the cloned Catalina 10.15.6 with Safari 13 and upgraded OS to 10.15.7 without updating Safari; upgrading just OS to 10.15.7 broke my safari again.. Is this a known hackintosh problem?

Thanks for advices!