[skybrian]

One the bright side, baseline web API's are good enough that most websites and most web developers can ignore new API's entirely. That wasn't true in the old days. You had to be aware of browser differences due to crippling bugs.

It seems like that also means competing browsers should work on most websites? How bad is it, really? Some cutting-edge demos and games don't work?

I'm under the impression that a lot of idiosyncratic website bugs are due to browser extensions that somehow mess with web pages.