2012
iPhone 5 website teardown: How Apple compresses video using JPEG, JSON, and <canvas>
by gregg & 1 otherThe "Design" page for iPhone 5 includes an auto-playing video of the device being unlocked. But there's no video element, just a canvas. And if you check the "Network" tab of the inspector, you won't find any video there either.
But you will find some strange JPEG images:
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(5 marks)