Bandwidth I guess, but I conject that it wouldn't starve most servers resources on static files. Coupled with good cache settings, I think this is a great move forward.
Imagine when I request Hacker News (too often), if it could download the HTML and the site returned NOT MODIFIED on everything else before I've even pressed enter, it could be displayed straight away, with little pressure on the server.
Imagine when I request Hacker News (too often), if it could download the HTML and the site returned NOT MODIFIED on everything else before I've even pressed enter, it could be displayed straight away, with little pressure on the server.