This a meta bug to track the port of MiniBrowser to the GTK+ API. Now that we have decided to design a new API for WebKit2, GtkLauncher2, which is GtkLauncher code compiled against webkit2, doesn't make sense anymore. And MiniBrowser should use the GTK+ API instead of the C one.
No more regressions in MiniBrowser since the migration to the GTK+ API \o/