diff --git a/packages/search-site/src/index.ejs b/packages/search-site/src/index.ejs
index c40e5df..331137b 100644
--- a/packages/search-site/src/index.ejs
+++ b/packages/search-site/src/index.ejs
@@ -178,7 +178,7 @@
   <script>
     // lunr = window.lunr
     // mitt = window.mitt
-    (function ({ mitt, lunr }, data) {
+    (function ({ mitt, lunr, localStorage }, data) {
       const emitter = mitt();
       const stringAscending = (a, b) => {
         const aa = a.toLowerCase();
@@ -189,6 +189,10 @@
 
       // helpers
       const getMultiValues = node => Array.from(node.selectedOptions).map(o => o.value);
+      const store = {
+        get: id => JSON.parse(localStorage.getItem(id)),
+        set: (id, val) => localStorage.setItem(id, JSON.stringify(val)),
+      };
 
       // vue helpers
       Vue.filter('capitalize', value => {