It's probably a historical oddity. Remember, Javascript started out as just an optional piece to copy-and-paste nifty effects in the beginning. You wouldn't wan

It's probably a historical oddity. Remember, Javascript started out as just an optional piece to copy-and-paste nifty effects in the beginning. You wouldn't want one script tag to kill the whole page. For a web app this behavior is horrible, and I say that as a big fan of Javascript and the web platform in general. I would love to be able to specify a setting and just have exceptions kill the app with a nice error message. So many times have I had users report weird problems in my single-page-app, and my only possible explanation is that they've had the app open in a tab for days on end, run into a random unrelated silent exception at one point, and that has later affected the behavior of a different feature later. Sigh...