Browser progress bars don't tell you "what" is loading. Many sites will say "waiting.." continuously because some ad server or request that has nothing to do with the current content is taking forever. A single-channel, catch-all "waiting" indicator isn't enough. Every major browser is broken in this respect. The "waiting" indicator is also typically only noticed by power users who have hundreds of thousands of hours of experience loading pages and some technical insight. This feature isn't accessible, it's a farce.
