But this isn't an optimization that I can learn from, really. I mean, unless I made that same mistake in referencing my sprite images, which seems unlikely. Basically, look at firebug and see what all the connections are coming from and fix it.
Maybe I would have appreciated the article better if the title hadn't said "CSS optimization". That made me expect to find some secret to help me make CSS load or render faster. He really fixed a bug in the use of a CSS sprite file.
More interesting: someone finds a way to find other instances of sprite files being used incorrectly on a given domain. But I think Google PageSpeed would identify this for accessing a static file with query string.
