I have a feeling this will end up like HSTS. It sounds really great at first, then a bunch of folks will get burned by it (just wait until somebody accidentall

I have a feeling this will end up like HSTS. It sounds really great at first, then a bunch of folks will get burned by it (just wait until somebody accidentally sets it for /index.html or whatever), and finally the general recommendation will be to stop using it altogether ("more harm than good"). Forever is such a long time. Besides, aren't there already ways to say "cache this resource for <acceptable timeframe>"?