Nice! Good job! A bit too long to read everything, but liked the intro.
One issue though. I've reached the end and had no idea what to do from there (aka you don't have a scrollbar OMG). First time I've used Page Up to go back up on a site :)))
Bigger companies also do that, Vodafone was compressing all images that went through their 3G service, and a ton of ISP inject / redirect HTTP traffic to tell you to pay the bills
Instead of the Youtube video, I think a step-by-step guide and feature introduction would be way better. Something like http://introjs.com/ but otherwise the game seems interesting.
That's an invalid JSON, and I didn't manage to make the validation and notify the user if the JSON is invalid or not. That's why it doesn't do anything :)