ContentType: application/json -> application/problem+json is safe but is show as breaking #686
Description
Describe the bug
Narrowing of mime type should be handled as safe.
There is an official list at https://www.iana.org/assignments/media-types/media-types.xhtml#application
To Reproduce
Steps to reproduce the behavior:
- change ContentType header from
application/jsontoapplication/problem+json.
Expected behavior
Change should be shown as safe.
Additional resources
https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/MIME_types