alex-marandon/imaginationforpeople — comment on commit 4c6d35d85509c5f525696191d68b371ef0645d44
File: apps/project_sheet/views.py line 235
By glibersat:

Yep, this is why I'd prefer to have Http404 instead of HttpResponseNotFound since it triggers the 404 page in a much cleaner way. So you are right about using Http404 :-)