Create ZIP files within ZIP files with tiny_zip_js

inception.js

// Requires https://raw.githubusercontent.com/vuplea/tiny_zip_js/master/tiny_zip.js
// From https://github.com/vuplea/tiny_zip_js/blob/master/tiny_zip.js

function inception(outerZIP, innerFinalZIP, innerZIPFileName, callback)
{
  var innerData = innerFinalZIP.generate();
  var reader = new FileReader();
  reader.addEventListener("loadend", function() {
    outerZIP.add(innerZIPFileName, new Uint8Array(reader.result));
    callback();
  });
  reader.readAsArrayBuffer(innerData);
}