Can't close windows and palettes created in a script (CC)

Question

Hi,
I developped a Script for After Effects, and sometimes I need to show a window or a palette, but when this window is showed more than once, it can't be closed again (the close button, the one with the cross on the title bar) does nothing, whether it's a palette or a window.
Here's my sample code :
creating the palette :
var mesurefenetre = new Window ("palette", "test",undefined, {resizeable:true});
var resultattexte = mesurefenetre.add("statictext",undefined,"text added");
showing the palette is done with a button in my main panel :
var bouton = fenetre.add("button",undefined,"mesure");
bouton.onClick = function () { mesurefenetre.show(); };
But with this code, when the window is shown once, then closed, then shown again, it then can't be closed...
So I tried to reimplement onClose on the window :
mesurefenetre.onClose = function () { mesurefenetre.close(); }; //does nothing
mesurefenetre.onClose = function () { mesurefenetre.hide(); }; //does nothing
So my current workaround is to use the button in my main panel to check if the window is visible and hide it...
     bouton.onClick = function () { if (mesurefenetre .visible) mesurefenetre .hide(); else mesurefenetre .show(); }; //don't like this behavior, really not user friendly
This example is with a palette, but it does not work with a window too.
This seems to be a bug from After Effects, it worked well with CS4~CS6, (used this in Duik (http://ik.duduf.com) for a long time)
Any idea what I can do ?
Thanks,
Duduf

Answer 1

Up!
Just to let you know, this still isn't fixed in my current version of After Effects (13.2.0.49 on win7, and win8.1) and it can be reeeeeaaaaally annoying to have to always add a close/cancel button on every windows...