Why coroutines won’t work on the webThe topic of coroutines (or fibers, or continuations) for JavaScript comes up from time to time, so I figured I’d write down my thoughts on the matter. I admit to having a soft spot for crazy control-flow features like continuations, but they’re unlikely ever to make it into ECMAScript. With good reason. The big justification for coroutines in JavaScript is non-blocking I/O. As we all know, asynch
