Error in CloudFilePicker with BlobBuilder in proxy.js

[gregbillock]

cloudfilepicker.com has an error in proxy.js:

function loadFile(rul, callback, asBlob) {
var xhr = new XMLHttpRequest();
xhr.onload = function() {
var bb = new BlobBuilder(): <----- undefined

See http://code.google.com/p/chromium/issues/detail?id=156713