Subsonic in frame, no answer of player

[lunarok]

Hi,

I get subsonic under proxy. All is working fine if I use http://myserver.ext/subsonic

To be complete, I use yunohost (project of self-hosting) for getting a central access to all my applications and with LDAP
The portal show a top-bar menu as a frame and display the application in the bottom frame

When in this mode, trying to use the web player is no success. Cannot add any song to listen or playlist, cannot press play if there is already a playlist for exemple
Searching, refresh of radom, all is working in subsonic, just the player get nothing

I'm thinking about a frame related problem (as with /subsonic I get no issue, only when subsonic is not in full window but in frame mode)

Any idea ?