I love the idea of this, but these days I always have something else sitting in front of apache (usually nginx), it seems like this is where i'd want a module l

I love the idea of this, but these days I always have something else sitting in front of apache (usually nginx), it seems like this is where i'd want a module like this to be running. If apache rewrites the html with such things like temporary optimized versions of files, nginx presumably won't know anything about serving them, so it'll break (date urls being an exception here I guess). For things like media, I really want to keep apache out of the loop completely.