[fix] algoliasearch is not defined (#542)

_config.yml

@@ -202,6 +202,7 @@ search:
     appId: 
     apiKey: 
     indexName: 
+    js: https://gcore.jsdelivr.net/algoliasearch/3/algoliasearch.min.js
 
 
 ######## Comments ########

layout/_plugins/search/algolia_search.ejs

@@ -4,10 +4,9 @@
       appId: '<%- conf.appId %>', 
       apiKey: '<%- conf.apiKey %>', 
       indexName: '<%- conf.indexName %>', 
+      js: '<%- conf.js %>',
       hitsPerPage: 100, 
     };
-      utils.js('https://gcore.jsdelivr.net/algoliasearch/3/algoliasearch.min.js', { defer: true });
     utils.js('/js/search/algolia-search.js', { defer: true });
   });
-  </script>
-  
+</script>

source/js/search/algolia-search.js

@@ -1,4 +1,5 @@
-utils.jq(() => {
+utils.js(window.searchConfig.js).then(() => {
+  utils.jq(() => {
     var $inputArea = $("input#search-input");
     if ($inputArea.length === 0) {
       return;
@@ -72,4 +73,5 @@ utils.jq(() => {
     });
 
     observer.observe($resultArea[0], { childList: true });
+  });
 });