pkgcloud rackspace cloud files

gistfile1.js

var pkgcloud = require('pkgcloud');


var rackspace = pkgcloud.storage.createClient({
  provider: 'rackspace',
  username: 'xxx',
  apiKey: 'xxxxxxxxxxxxxxx'
});

rackspace.getContainers(function (err, containers) {
  console.log(err);
  console.log(containers);
});

// [Error: Invalid URI "?format=json"]
// undefined