Microsoft Edge gets native ECMAScript 7 async/await support in latest build
Firefox has had this for over 6 years through my async.js[1] library that relied in JavaScript 1.7's pythonic iterators and generators. The syntax is similar, as you have to mark/encapsulate functions with async() to use the library.<p>1. <a href="https://github.com/eligrey/async.js" rel="nofollow">https://github.com/eligrey/async.js</a>