diff --git a/app/components/fastboot-only/local-navigation-for-seo.js b/app/components/fastboot-only/local-navigation-for-seo.js
index 2b4605d81e5..1278e5dc769 100644
--- a/app/components/fastboot-only/local-navigation-for-seo.js
+++ b/app/components/fastboot-only/local-navigation-for-seo.js
@@ -8,7 +8,7 @@ export default Component.extend({
 	wikiVariables: service(),
 	localLinks: readOnly('wikiVariables.localNav'),
 	currentLocalLinks: or('currentLocalNav.children', 'localLinks'),
-	flattenLinksArray(linksList) {
+	flattenLinksArray(linksList = []) {
 		let flatArray = [];
 		linksList.forEach((item) => {
 			if (item.href !== '#') {
diff --git a/app/routes/application.js b/app/routes/application.js
index fe2a47db49b..470c5ad2123 100644
--- a/app/routes/application.js
+++ b/app/routes/application.js
@@ -1,6 +1,7 @@
 import {inject as service} from '@ember/service';
 import Route from '@ember/routing/route';
 import {getOwner} from '@ember/application';
+import {getWithDefault} from '@ember/object';
 import Ember from 'ember';
 import ArticleModel from '../models/wiki/article';
 import HeadTagsStaticMixin from '../mixins/head-tags-static';
@@ -193,10 +194,9 @@ export default Route.extend(
 				}
 
 				this.get('logger').error('Application error', error);
-
 				if (fastboot.get('isFastBoot')) {
 					fastboot.get('shoebox').put('serverError', true);
-					fastboot.set('response.statusCode', 503);
+					fastboot.set('response.statusCode', getWithDefault(error, 'code', 503));
 					this.injectScriptsFastbootOnly(null, transition.queryParams);
 
 					// We can't use the built-in mechanism to render error substates.