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If features on a web page don’t work in Safari on Mac
If features on a web page don’t work, options that help Safari handle special content may be turned off.
Make sure the web page is open.
In the Safari app
on your Mac, choose Safari > Preferences, then click Security.Make sure the Enable JavaScript tick box is selected.
Click Websites.
On the left, click Content Blockers.
Make sure Off is chosen in the pop-up menu next to the website.
On the left, click Pop-up Windows.
Make sure Allow is chosen in the pop-up menu next to the website.
See alsoBlock pop-ups in Safari on Mac