Go look at any major site in the wild right now. They all download several MB of JS. Facebook is 1.8MB of JS out of 3.9MB. The BBC is 1.6MB out of 3.8MB. Kotaku

Go look at any major site in the wild right now. They all download several MB of JS. Facebook is 1.8MB of JS out of 3.9MB. The BBC is 1.6MB out of 3.8MB. Kotaku is 2.6MB out of 7.5MB. CNN is 2.8MB out of 6.5MB. Hell, here's an article complaining about the size of websites that itself downloads almost 1MB of JS: https://gigaom.com/2014/12/29/the-overweight-web-average-web-page-size-is-up-15-in-2014/ https://gigaom.com/2014/12/29/the-overweight-web-average-web... I've written multiplayer VR experiences that run cross-platform through the browser that only clock in at 500KB of JS. You can put a LOT of code in a MB.