In a django template, a call to {{ var }} will silently fail if var is undefined. That makes templates hard to debug. Is there a setting I can switch so django will throw an exception in this case?
The only hint at a solution I've found online is http://groups.google.com/group/google-appengine/browse_thread/thread/86a5b12ff868038d and that sounds awfully hacky.
Django<=1.9
Set TEMPLATE_STRING_IF_INVALID = 'DEBUG WARNING: undefined template variable [%s] not found' in your settings.py.
See docs:
https://docs.djangoproject.com/en/1.9/ref/settings/#template-string-if-invalid
Django>=1.10
Set string_if_invalid = 'DEBUG WARNING: undefined template variable [%s] not found' template option in your settings.py.
See docs: https://docs.djangoproject.com/en/2.0/topics/templates/#module-django.template.backends.django
Also read: http://docs.djangoproject.com/en/dev/ref/templates/api/#invalid-template-variables