quick and dirty addition of stacktraces to errors

[Simon-Laux]

• quick and dirty addition of stacktraces to errors
• better errors for chromium

Main usecase is having a useful stacktrace. Though it probably makes sense to do it the "right way": using the packages from https://www.stacktracejs.com, though the downside to this is a slightly larger bundle size, but I think better stacktraces would be worth it.