Dynamic meta viewport

This page has a hard-coded meta viewport of 380. At load time (in the head) this 380 is switched to 480.

Iteration 1
screen.width/height = 1280 / 720
documentElement.client = 1280 / 720
window.innerWidth/Height = 1280 / 720
window.devicePixelRatio = 1
window.page = 0 / 0