Next/Previous match is not working when searching Scrapbox page in Safari

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Hello!

Find on page (Cmd-f) is not working correctly in Safari (MacOS, Catalina 10.15.5): matched words are highlighted, but it is impossible to go to the next/previous match using Cmd-g : just nothing happens. Looks like a bug to me.

Can this be fixed?

Here is a video.

Thanks!