I am using macOS Bifg Sur, with Safari v14.0.1 and whenever I visit an Invoice Ninja page that shows a preview of an invoice, the page gets completely stuck, and I have to close the browser window. And when I visit that page again, the same issue appears.
This is an example page that displays this behaviour.
There is a preview window at the bottom of the page causing this issue.
I don’t know if this is a browser issue, but I would prefer using Safari.
Any way to fix this?