phantomJS で cookieを扱う（追加する）

cookie.js

var url  = 'http://localhost/';
var page = require('webpage').create();

page.settings.userAgent = 'Mozilla/5.0 (iPhone; CPU iPhone OS 9_0 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13A344 Safari/601.1';

phantom.clearCookies();
phantom.addCookie({
  'name' : 'guide',
  'value' : 1,
  'domain'   : 'localhost',
  'path'     : '/',
  'expires'  : (new Date()).getTime() + (1000 * 60 * 60)   /* <-- expires in 1 hour */
});

page.open(url, function() {
  page.render('screen.png');
  phantom.exit();
});