tangentlabs/django-oscar — pull request #1224 by Kulak (2014-02-26 08:32:17+00:00)
Title: Consolidated MIDDLEWARE_CLASSES settings

Moved description of what is required of MIDDLEWARE_CLASSES into a single location in the document for easier reference. It appears that BasketMiddleware is easy to miss. I missed it and someone else on the mailing list had the same error.