X3D Anchor to another X3D scene always opens a new browser window

Hello,

in my X3D world I want to provide a door which acts as a link to another X3D world/room and thus replaces the first room with the second room in the browser. I achieved this by using the X3D Anchor element. After updating the Vivaty player this doesn't work properly anymore. With the new version of the player the link always opens a new browser window instead of staying in the same browser window.

With an old Flux player version which I fortunately found somewhere on my disk this works properly. This behavior is even specified by the X3D standard http://www.web3d.org/x3d/specifications/ISO-IEC-19775-1.2-X3D-AbstractSpecification . Will this work in Vivaty player again? If it is a bug when will it be fixed?

Thanks in advance,
Robert