I press rightClick, context menu appears correctly, but when I want to choose menu item (from context menu), that menu disappeared suddenly. this behavior is correct in original noVNC .
pressing right click => displaying menu

but when I move mouse, menu is disappeared.
I press rightClick, context menu appears correctly, but when I want to choose menu item (from context menu), that menu disappeared suddenly. this behavior is correct in original noVNC .
pressing right click => displaying menu

but when I move mouse, menu is disappeared.