diff --git a/lib/actions/apiV2.js b/lib/actions/apiV2.js
index 7010dac83..0089de87c 100644
--- a/lib/actions/apiV2.js
+++ b/lib/actions/apiV2.js
@@ -862,7 +862,7 @@ export function routingQuery(searchId = null, updateSearchInReducer) {
       config?.modes?.initialState?.enabledModeButtons ||
       {}
 
-    const strictModes = config?.itinerary?.strictItineraryFiltering
+    const strictModes = !!config?.itinerary?.strictItineraryFiltering
 
     // Filter mode definitions based on active mode keys
     const activeModeButtons = config.modes?.modeButtons.filter((mb) =>
@@ -968,7 +968,7 @@ export function routingQuery(searchId = null, updateSearchInReducer) {
               let filteredItineraries = itineraries
               // If "strictItineraryFiltering" is enabled, only return itineraries that contain at least one explicitly requested mode...
               if (strictModes) {
-                filteredItineraries = itineraries.filter((itin) =>
+                filteredItineraries = itineraries?.filter((itin) =>
                   itin.legs.some((leg) =>
                     activeModeStrings.includes(SIMPLIFICATIONS[leg.mode])
                   )
@@ -977,7 +977,7 @@ export function routingQuery(searchId = null, updateSearchInReducer) {
               }
 
               // Filter itineraries to collapse short names and hide unnecessary errors.
-              const withCollapsedShortNames = filteredItineraries.map(
+              const withCollapsedShortNames = filteredItineraries?.map(
                 (itin) => ({
                   ...itin,
                   legs: itin.legs