> Edit: Ha, caught out by my own dev setup, ie: disable cache when dev tools is open. My bad, feel free to ignore everything I said :)

I wouldn't feel too bad. Our homepage at Immuta originally had a background video near the top and when I was debugging something I looked at it and noticed it had downloaded 200MB from the server because it just kept looping over and over and re-downloading over and over while I had the web page open for a really long time. I practically freaked out, thought we were killing our bandwidth, etc. It took me probably at least an hour to realize that I had disable cache ticked =/