diff --git a/www/local-storage-store.js b/www/local-storage-store.js
index 353d820..044e7ca 100644
--- a/www/local-storage-store.js
+++ b/www/local-storage-store.js
@@ -98,7 +98,7 @@ WebStorageCookieStore.prototype._isOnPath = function(cookiePath, urlPath) {
         return true;
     }
 
-    if (!urlPath.startsWith(cookiePath)) {
+    if (urlPath.indexOf(cookiePath) !== 0) {
         return false;
     }