For further digging I found An appArmor policy prevents from webapp-container expose MPRIS
signal time=1764940153.079286 sender=:1.134 -> destination=(null destination) serial=19 path=/org/mpris/MediaPlayer2; interface=org.freedesktop.DBus.Properties; member=PropertiesChanged
string "org.mpris.MediaPlayer2.Player"
array [
dict entry(
string "PlaybackStatus"
variant string "Paused"
)
]
array [
]
error time=1764940153.079343 sender=org.freedesktop.DBus -> destination=:1.134 error_name=org.freedesktop.DBus.Error.AccessDenied reply_serial=19
string "An AppArmor policy prevents this sender from sending this message to this recipient; type="signal", sender=":1.134" (uid=32011 pid=19620 comm="youtube-web" label="youtube-web.mateo-salta_youtube-web_7 (enforce)") interface="org.freedesktop.DBus.Properties" member="PropertiesChanged" error name="(unset)" requested_reply="0" destination="org.freedesktop.DBus" (uid=32011 pid=15732 comm="/usr/bin/mpris-proxy" label="unconfined")"
method call time=1764940153.084393 sender=:1.141 -> destination=org.freedesktop.DBus serial=8 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=RemoveMatch
string "type='signal', path='/org/freedesktop/DBus/Local',interface='org.freedesktop.DBus.Local', member='Disconnected'"
method return time=1764940153.084439 sender=org.freedesktop.DBus -> destination=:1.141 serial=9 reply_serial=8
is there any way we can configure app mirror policy ?