[onion2k]

That's a big advantage, but at the same time you're pushing content to a user that they might not want, or ever see, which could be a problem for users on poor quality 3G networks. If bandwidth is at a premium a developer shouldn't waste it.

[kylemathews]

"Bandwidth" isn't the problem on 3g generally. What does cause UX problems is high latency. Speculatively precaching content is basically the only solution.

FWIW, while I'm in the US so don't really understand developing for very poor networks, the methods I'm describing is exactly what companies in India and other places with poor networks are adopting: https://developers.google.com/web/showcase/2016/flipkart

This is also a good read https://developers.google.com/web/fundamentals/performance/p...