I figured out the issue: I needed to create a *new* instance of an HttpResponse instead of just modifying the original.
Old way (bad): def process_response(request, response): response.content = "whatever" return response New way (good!): def process_response(request, response): content = "whatever" return HttpResponse(content) Hopefully this saves some other Django newbie a few minutes of frustration. -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-us...@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.