This string is hard-coded into `inputtypes.py` as well. Should it be using `self.system.STATIC_URL`? Also, to test that `STATIC_URL` actually is used everywhere, would it make sense to set the value to `dummy-static`, or something (that's explicitly different than the old `/static` location? That way, you can make sure all the expected output uses `dummy-static`, and thus hopefully catch places that aren't using `STATIC_URL`