KeyError: 'content-type' when response['Content-Type'] is not set

[int-ua]

AFAIU response['Content-Type'].startswith('text/html') in middleware.py should be replaced with 'text/html' in response.get('Content-Type', '').

[peterbe]

Really? What kind of Content-Type do you have that doesn't start with text/html?

[int-ua]

It's just None somehow. I'm using ListAPIView and a CSV renderer from rest_framework_csv.

[peterbe]

Oh I see. Perhaps something like this instead:

if response.get('Content-Type', '').startswith('text/html'):

What do you think?

[int-ua]

Looks like it would also work, yes

[peterbe]

Cool. Make a PR with a unit test and I'll merge it.

[peterbe]

Don't forget to comment about why sometimes the response doesn't have a Content-Type header.