Polyfill to JavaScript
Polyfill to JavaScript

As [discussed](https://github.com/WebAssembly/spec/issues/96#issuecomment-108582323) asm.js is a smart implementation strategy to get polyfills to execute fast, but isn't a requirement. Some features aren't supported by asm.js, and a polyfill may decide to avoid asm.js on some browsers when performance isn't quite there.
lynnboy/design