Oops - I didn't mean thrown errors, I meant errors passed to the callbacks. It doesn't seem like they are useful yet: https://gist.github.com/spion/356bfc9cc1

Oops - I didn't mean thrown errors, I meant errors passed to the callbacks. It doesn't seem like they are useful yet: https://gist.github.com/spion/356bfc9cc1089edd2e3b https://gist.github.com/spion/356bfc9cc1089edd2e3b