That's a really interesting point, I'd never thought of that. Worse still, you could do some trickery with app cache manifests to prevent cache cleans/page refr

That's a really interesting point, I'd never thought of that. Worse still, you could do some trickery with app cache manifests to prevent cache cleans/page refreshes from fixing it, maybe even forever. I spent a bit of time messing around with that approach, and came up with this: https://github.com/sgentle/hackcache https://github.com/sgentle/hackcache