Good stuff, but I don't think this website is big enough to demo the benefits, maybe a heavier website is needed. A properly configured web server as well as the right HTTP headers will give you the same speed, perceptually.
Also you might want add some kind of tracking to avoid making repeat requests (probably within a timeframe). For e.g. hovering one link, then changing your mind, then going to another link. The browser will smartly pull it from its cache but this lib is still making the requests.
Also you might want add some kind of tracking to avoid making repeat requests (probably within a timeframe). For e.g. hovering one link, then changing your mind, then going to another link. The browser will smartly pull it from its cache but this lib is still making the requests.