get a file raw file into the browser
var hyperfile = require('hyperfile')
document.body.appendChild(hyperfile(function (buffer) {
  //called with a raw array-buffer whenever the user selects a file.
}))or get the file as an dataurl. (useful for writing to a canvas)
var hyperfile = require('hyperfile')
document.body.appendChild(hyperfile.asDataURL(function (dataurl) {
  //called with a raw buffer whenever the user selects a file.
}))This does not use a cb(err, data) signature, because it may callback multiple times.
MIT