Where does the "proxies" payload actually set the proxies?

Contributor III

I setup a test config profile with the Proxies payload for our HTTP/HTTPS proxy. When installed, we get prompted to go to System Preferences to enter our credentials like normal, but when we go to a specific network interface like WiFi > Advanced > Proxies there's nothing actually under HTTP/HTTPS proxies. We removed the profile, but the proxies seem to be persisting, so I want to clear them out.