diff --git a/api/server.js b/api/server.js
index b469897..bcea8e0 100644
--- a/api/server.js
+++ b/api/server.js
@@ -13,6 +13,9 @@ const app = express();
 // header on all requests
 app.use(function(req, res, next) {
   res.header("Access-Control-Allow-Origin", "*");
+  res.header('Cache-Control', 'private, no-cache, no-store, must-revalidate');
+  res.header('Expires', '-1');
+  res.header('Pragma', 'no-cache');
   next();
 });
 app.get('/', (req, res) => {
diff --git a/html/index.html b/html/index.html
index cfd8519..7e9b58b 100644
--- a/html/index.html
+++ b/html/index.html
@@ -7,6 +7,10 @@
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <meta charset="UTF-8">
 
+  <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
+  <meta http-equiv="Pragma" content="no-cache">
+  <meta http-equiv="Expires" content="0">
+
   <title>blah2</title>
 
   <!-- load lib js -->