Comment 1 for bug 1178464

This is a regression in Midori, and I tracked it down to commit fd28a425596cf201c9e51e2f0f2402b66a4db54c where the default value was removed for technical reasons (different Vala versions do or don't error).

I'm uncertain how to approach it just yet, I second the work-around in elementary defaults for now until a fix is available.