getsentry/sentry — pull request #1075 by mattrobenolt (2013-12-02 03:30:32+00:00)
Title: Notify when SENTRY_URL_PREFIX hasn't been set

When not set correctly, configures ALLOWED_HOSTS to catch-all so
Sentry can at least start up.

People mess this enough, so it'd be nice to put this more in their face and help with the onboarding a bit.