Is there a way to make it so that scroll bars don’t show up in a URLWindow?

if you use window I can’t get a scroll bar to show up so it might worth trying window instead of urlwindow.

// old
.ui-window .content { overflow: hidden !important;
}
// new
.noscroll { overflow: hidden !important;
}

figured out i had some css in there that was causing the issues. I renamed it to noscroll and can turn it on and off with a class name