Nonsense. You have the css and javascripts. You just aren&#x27;t certain that they&#x27;re the most recent version. So you go ahead and render the page using either the version you have, or requesting it from the server, still doing everything in order. Then you validate your assumptions in the background about the stale versions you used still being the most current. If your assumptions are right (and mostly they will be) nothing happens. If they&#x27;re wrong, you re-render the page, again all in order.