Web Assembly now supported across all browsers(infoq.com)

    1. On the main thread, the client kicks off a load 
       of a URL by calling loadWebAssembly and receives
       a Promise<Function>.

    2. The polyfill library starts up a worker containing
       asm.js code compiled from unpack.cpp concatenated 
       with the glue code in load-wasm-worker.js.

    3. The worker glue code fetches the binary via XHR 
       then copies the result into the asm.js heap.

    4. The asm.js code decodes the binary into asm.js 
       in the form of UTF8 bytes in a separate region 
       of the asm.js heap.

    5. The worker glue code creates a Blob (a read-only 
       copy) from a view of just the asm.js UTF8 bytes.

    6. The Blob is postMessage()ed back to the main 
       thread (a non-copying operation) where it is 
       loaded as a script element with 
       script.src = URL.getObjectURL(blob).

    7. When the asm.js script is executed, it passes the
       asm.js module function object to a callback which
       resolves the promise in step 1.