Return early so page-not-found errors only create one error on bus.

src/router/index.js

@@ -160,6 +160,7 @@ const routes = [
                 if (!isExistingFmgPageName(to.query.fmgPage)) {
                     console.log("Not an existing fmg page name:" + to.query.fmgPage);
                     GoToFunnelStartOn404(next);
+                    return;
                 }
 
                 // Get route info for the given url. Names will have a 1:1 relationship with names in the Cms.