+
+ /**
+ *
+ * The URL provided does not resolve to a valid module.
+ *
+ * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
+ * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
+ * we are going to trap this and redirect back to the requested page. As long as you don't have a critical error on your page
+ * this will often succeed and eventually do the right thing.
+ *
+ * Otherwise we are going to emit a 404 not found.
+ *
+ */
+
+ if(! $a->module_loaded) {
+
+ // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
+ if((x($_SERVER,'QUERY_STRING')) && preg_match('/{[0-9]}/',$_SERVER['QUERY_STRING']) !== 0) {
+ killme();
+ }
+