Comment 4 for bug 1887815

In Neutron the core resources are handled by V2Controller and the non-core are handled by Controller. This leads me to believe we should resolve the issue assuming that V2Controller would seem to be newer than controller. Question remains the difference in handling.

I've also reproduced this at the pecan level with a basic tutorial pecan app.
If you create a generic pecan app and set the content_type to "application/json" for the index the same behavior manifests.