Results 965 comments of Thomas Grainger

actually this doesn't need a doc change as `--loop` never allowed a custom loop setup function

```js export const filteredItems = ({ items }, _, value) => items.filter(i => i.filter === value); ```

fixed in https://github.com/python-cffi/cffi/pull/24 but not released yet

FYI json must be in UTF8, so that flag is redundant. Matching the prefix is also incorrect, because it would include `application/json-not-really-json`

tests are tricky for this, as it only causes the warning on quart-trio

@wuct I've updated the description.

happy to add tests etc if approved.