Unsupported media type
Canonical type:
https://learn.peios.org/wispist/problems/unsupported-media-type/
Status: 415 Unsupported Media Type. Browser code: unsupported_media_type.
Document create and replacement bodies require:
Media-type parameters such as charset=utf-8 are accepted, but another base type or a missing header is not. Set the header and send the documented {"data": {...}} envelope.
JSON that has the correct media type but invalid content uses Invalid JSON or Invalid request.