[sigden]

I'm a big fan of react-easy-state. Unfortunately its foundation of ES6 proxies precludes its use in Internet Explorer.

[yttrium]

What about react-easy-state stops you from transpiling to ES2015?

[thenewestkid]

Author here. As sigden mentioned, ES6 Proxies can not be transpiled. That is one reason why they are not yet commonly used. You can find out more about them here: https://developer.mozilla.org/en/docs/Web/JavaScript/Referen... (They are pretty awesome).

[packetslave]

or Safari < 10 (Sierra)