(pre)Loading media data

[jkosem]

Just wondering what in this case would be the best way of handling media downloads and keeping them. So this sort of use case:

1. User opens site start page
2. They begin walking somewhere else and lose signal
3. User can still see media

[JGL]

I think we want to pre-cache for sure - that's the way my JS works at the moment for some small JPGs. Not sure if that Is going to scale for larger files such as sounds and videos.