lightdm-webkit-greeter draw nothing in LL 2.4

[stop0x0000000a]

ok, seems I've found a solution or hack or...

apt-get build-dep lightdm-webkit-greeter
apt-get source lightdm-webkit-greeter

in the file lightdm-webkit-greeter.c I've changed an order for a couple of lines:
gtk_widget_show_all (window);
webkit_web_view_load_uri (WEBKIT_WEB_VIEW (web_view), g_strdup_printf("file://%s/%s/index.html", THEME_DIR, theme));

So we show the window and then load the URL into it... Works in my case, a bit crazy.