Since a very simple test of Ilford MGIV shows that there is a reducing agent (developing agent) in the coating. It is so simple to run. But, Simon Galley has said that there is no developing agent present.
So, something is there that acts as if there were a developing agent present whether that was the intent or not. The paper will develop images with nothing other than alkali. Kodak papers do the same, but many other papers do not.