diff --git a/public/index.html b/public/index.html
index 16b0417..d69dc6a 100644
--- a/public/index.html
+++ b/public/index.html
@@ -1,31 +1,32 @@
-<!DOCTYPE html>
-<html lang="en">
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=no">
-    <link rel="icon" href="<%= BASE_URL %>favicon.ico">
-    <script>
-      window.onload = function() {
-        document.addEventListener('touchstart', function(event) {
-          if (event.touches.length > 1) {
-            event.preventDefault()
-          }
-        },
-        { passive: false }
-        )
-        document.addEventListener('gesturestart', function(event) {
-          event.preventDefault()
-        })
-      }
-    </script>
-    <title><%= htmlWebpackPlugin.options.title %></title>
-  </head>
-  <body>
-    <noscript>
-      <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
-    </noscript>
-    <div id="app"></div>
-    <!-- built files will be auto injected -->
-  </body>
-</html>
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta name="referrer" content="no-referrer">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=no">
+    <link rel="icon" href="<%= BASE_URL %>favicon.ico">
+    <script>
+      window.onload = function() {
+        document.addEventListener('touchstart', function(event) {
+          if (event.touches.length > 1) {
+            event.preventDefault()
+          }
+        },
+        { passive: false }
+        )
+        document.addEventListener('gesturestart', function(event) {
+          event.preventDefault()
+        })
+      }
+    </script>
+    <title><%= htmlWebpackPlugin.options.title %></title>
+  </head>
+  <body>
+    <noscript>
+      <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
+    </noscript>
+    <div id="app"></div>
+    <!-- built files will be auto injected -->
+  </body>
+</html>
diff --git a/src/views/module/homeListItem.vue b/src/views/module/homeListItem.vue
index 4397d03..f439c52 100644
--- a/src/views/module/homeListItem.vue
+++ b/src/views/module/homeListItem.vue
@@ -3,7 +3,7 @@
     <div :class="[isNewBook ? 'list-small' : (isOtherBook ? 'list-middle' : 'list-big') ]">
       <div v-for="(item,index) in listData" :key="item.ranking" class="list-item" @click="handleDetails(index)">
         <div class="book-img">
-          <img :src="item.cover" :onerror="defaultImg" />
+          <img :src="item.cover ? item.cover : ''" :onerror="defaultImg" />
         </div>
         <div class="book-info">
           <h4 :class="['book-title', {'title-item': !isOtherBook}]">{{ item.nbName }}</h4>
