feat: set default request content type to JSON
As we send JSON this should have been set. This is now required by the new OpenAPI validation in the API cube: cubicweb/cubes/api!11 (merged)
Edited by Arnaud Vergnet
As we send JSON this should have been set. This is now required by the new OpenAPI validation in the API cube: cubicweb/cubes/api!11 (merged)