If your use case entails people saving your site to disk then you have may not be able to use // for protocol relative links, but most people don't have to worr

If your use case entails people saving your site to disk then you have may not be able to use // for protocol relative links, but most people don't have to worry about such things. I'm saying that those who need to worry about such things should and the rest of us should not. Nothing more and nothing less.