Compute 'extra.d' relative URL

static/js/main.js

@@ -121,6 +121,18 @@ require.config({
 	}
 });
 
+(function() {
+	// Dynamic extraD, go up all segments from our current app.
+	var extraD = require.toUrl('extra.d').split('/');
+	for (var i = 0; i < extraD.length - 1; i++) {
+		extraD[i] = '..'
+	}
+	extraD = extraD.join('/');
+	require.config({
+		'extra.d': extraD
+	});
+}());
+
 (function() {
 	var debugDefault = window.location.href.match(/(\?|&)debug($|&|=)/);
 	// Overwrite console to not log stuff per default.