403 Access Blocked on Android

Hello,

Recently our use of OSM has been blocked in our Android app:

We have read the tile usage policy at osm.wiki/Blocked, but do not understand what it is that we are doing incorrectly.

The relevant HTTP headers sent from the app look like this:

I/flutter ( 9305): URL: https://tile.openstreetmap.org/6/30/17.png

I/flutter ( 9305): User-Agent: Zoolander/5.3.2 (support@spilhuset.dk)

I/flutter ( 9305): Referer: https://spilhuset.dk

Can anyone help with determining what we do wrong?

Could it be be that you are missing Referrer-Policy