WD.js with OSX - keys fails - workaround

sauce-osx-test.js

var wd = require('wd')
  , Q = require('q')
  , request = require('request')
  , assert = require('assert')
  , host = "ondemand.saucelabs.com"
  , port = 80
  , username = YOUR_USERNAME
  , accessKey = YOUR_ACCESS_KEY
  // using promisified version of webdriver
  , browser = wd.promiseRemote(host, port, username, accessKey);

browser.on('status', function(info){
  console.log('\x1b[36m%s\x1b[0m', info);
});

browser.on('command', function(meth, path, data){
  console.log(' > \x1b[33m%s\x1b[0m: %s', meth, path, data || '');
});

// test case
browser.init({
  browserName: 'safari',
  platform: 'Mac 10.8',
  version: '6',
  tags: ["examples"],
  name: "Helpdesk - Mac OSX",
  build: "helpdesk-test"
}).then(function () {
  // using our handly guinea pig
  return browser.get("http://saucelabs.com/test/guinea-pig");
}).then(function () {
  return browser.elementById('comments');
}).then(function (elem) {
  // normally this should work...
//   return elem.click();
//   // or
//   // return browser.clickElement(elem);
// }).then(function () {
//   return browser.keys('hello');

// workaround here !!!
  return browser.type(elem, 'hello');
}).then(function (body) {
  return browser.eval("document.getElementById('comments').value");
}).then(function (value) {
  // double checking ;-)
  assert.equal(value, 'hello');
}).fin(function () {
  browser.quit();
}).done();