var Browser = require('zombie');
Browser.localhost('www.patreon.com');

var browser = new Browser();
console.log('browser created');

browser.visit('/login', function(done){
    console.log('zombie visited /login');

    browser.assert.success();
    browser.wait().then(function(){
        console.log( browser.document.body.innerHTML );
        browser
            .fill('input[name=email]', credentials.email)
            .fill('input[name=password]', credentials.password);

        browser.pressButton('Submit', function(done){
            browser.assert.success();
            browser.assert.text('title', 'Welcome To Brains Depot');
            console.log('should be logged in');
        });
    });
});

zombie visited /login
Unhandled rejection https://www.patreon.com/login:script:2
     Modernizr.addTest('patreon-flexbox-ie10-adjustment', Modernizr.testAllPro
                                                                    ^
TypeError: undefined is not a function
    at https://www.patreon.com/login:script:2:72
    at Object.exports.runInContext (vm.js:64:17)
    at window._evaluate