У вашего броузера проблема в совместимости с HTML5
Ember.js actions can be confusing. In this video I discuss why we use the action hash and why it's important to an Ember application. We then look at closure actions and how they work. My Ember.js Cookbook! http://goo.gl/B3cOZT Learning web development? http://bit.ly/2zP4alw My Logitech Webcam: http://amzn.to/2lStvHb My Audio Technica Microphone: http://amzn.to/2lE8X2o Really quiet keyboard: http://amzn.to/2lNVmHX One of the best books on development: http://amzn.to/2lNOuu6 Check out my website http://www.programwitherik.com Find me here http://www.twitter.com/erikch http://www.facebook.com/programwitherik Links Mentioned In Video https://embermap.com/notes/26-a-note-on-actions