diff --git a/public/index.html b/public/index.html
index 994f502e..4df52d63 100644
--- a/public/index.html
+++ b/public/index.html
@@ -4,11 +4,11 @@
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-    <meta http-equiv="pragram" content="no-cache">
-    <meta http-equiv="cache-control" content="no-cache, no-store, must-revalidate">
-    <meta http-equiv="Cache" content="no-cache">
-    <meta http-equiv="Pragma" content="no-cache">
-    <meta http-equiv="expires" content="0">
+<!--    <meta http-equiv="pragram" content="no-cache">-->
+<!--    <meta http-equiv="cache-control" content="no-cache, no-store, must-revalidate">-->
+<!--    <meta http-equiv="Cache" content="no-cache">-->
+<!--    <meta http-equiv="Pragma" content="no-cache">-->
+<!--    <meta http-equiv="expires" content="0">-->
     <meta name="viewport" content="width=device-width,initial-scale=1.0">
     <meta name="apple-mobile-web-app-capable" content="yes">
     <meta name="apple-mobile-web-app-status-bar-style" content="black">
@@ -16,9 +16,9 @@
     <meta name="referrer" content="strict-origin-when-cross-origin"/>
     <link rel="icon" href="<%= BASE_URL %>logo/favicon.ico">
     <title>京东方大学堂</title>
-    
+
     <script>
-      
+
       // if(window.top != window.self){
       //    window.top.location=window.self.location;
       // }