It’s interesting to me to think about during a lot of the web’s evolution, there were many different browser engines (more than there are now) and they mostly just agreed-on-paper to do the same stuff. We focus on how different things could be cross-browser back then, which is true, but mostly it all worked pretty well. A miracle, really, considering how unbelievably complicated browsers are. Then we got standards and specifications and that was basically the greatest thing that could have happened to the web. So we put on our blue beanies and celebrate that, which also serves as a reminder to protect these standards. Don’t let browsers go rogue, people! Then, still later, we actually got tests. In retrospect, yes, obviously, we need tests. These are now web-platform-tests (WPT), and they help all the browser engines make sure they are all doing the right thing. Amazing.…