A while ago, a prominent Vercel employee (two, actually) posted to the tune of: Developers don’t get CDNs Exhibit A etc. It is often that random tweets somehow get me into a frenzy – somebody is wrong on the internet, yet again. But when I gave this a second thought, I figured that… this statement has more merit than I would have wanted it to have. It has merit because we do not know the very basics of cache control that are necessary (and there are not that many)! It does not have meri...