It looks great, but why should we start promoting this as a UI pattern? This seems like a step in the wrong direction, and just because Youtube does it doesn't mean that others should too.
If you need a visual cue that something is loading on your page, throw up some kind of spinner or other animation that doesn't have a fixed beginning and end. Unless you think you know how to accurately measure the time that http request/response cycle is going to take (you don't).
If you need a visual cue that something is loading on your page, throw up some kind of spinner or other animation that doesn't have a fixed beginning and end. Unless you think you know how to accurately measure the time that http request/response cycle is going to take (you don't).