If this post is greek to you, take a look at my Ember CLI and Content Security Policy (CSP) blog post.
Earlier this month, I had the opportunity to speak at the Toronto EmberJS Meetup, a monthly meeting at Pharmacy (pictured above), about Ember CLI and Content Security Policy. I assembled a demo application with a variety of of CSP errors, and walked through on how to fix each one in the application.
The app explained some elements of CSP, why things are the way they are, and how to configure your Ember CLI app. You can download the app here to interactively learn about CSP.