As a dev who works on a Mac with Safari, I say none: my co’s app, which is quite complex, “just works” on Safari (what I use), Chrome (what the rest of the team

As a dev who works on a Mac with Safari, I say none: my co’s app, which is quite complex, “just works” on Safari (what I use), Chrome (what the rest of the team uses), and Edge (what our bigger customers use). Is this because of React? Babel? Webpack? Maybe. All I know is that we happily code away on this complex beast, and everything. Just. Works. Everywhere.