1. Safari > Preferences > Privacy > Cookies and website data:
Deselect “Block all cookies”
2. Safari > Preferences > Privacy > Website tracking:
Deselect “Prevent cross-site tracking” temporarily.
Note: This is an important privacy feature. Once the task at hand is finished. select it again.
3. Safari > Preferences > Security > Web content:
Deselect “Block pop-ups”
https://support.apple.com/guide/safari/manage-cookies-and-website-data-sfri11471 /mac
https://support.apple.com/guide/safari/prevent-tracking-sfri40732/mac