feedback needed re exception handling in DEP 5 middleware

[Carl Meyer]

Hi all,

Any of you with a particular interest in middleware, DEP 5, and handling
of view exceptions, please take a look at the discussion on
https://github.com/django/django/pull/6618 and if you have strong
feelings about what route we should take, please weigh in either there
or here. (The code in that PR is less relevant, it doesn't represent the
latest plan of action that we need feedback on, which is outlined in the
discussion thread.)

Thanks,

Carl