I’m running 3.13.0 on a subdomain of my tracked site domain and have set up the Matomo Tracker Proxy at GitHub - matomo-org/tracker-proxy: HTTP proxy for Matomo's tracker API. This script allows to track websites with Matomo without revealing to your visitors the secret Matomo server URL.
The problem I see is that the Op-out iFrame HTML still has my subdomain. Is there a way to redirect that to hide the subdomain? Or is there another way to use Opt-out that doesn’t reveal the subdomain in the IFrame?