no-cache

@@ -61,6 +61,11 @@ exports.productLst = function(req, res, next) {
     }
 
     getProductList.then((result) => {
+        res.set({
+            'Cache-Control': 'no-cache',
+            Pragma: 'no-cache',
+            Expires: (new Date(1900, 0, 1, 0, 0, 0, 0)).toUTCString()
+        });
         res.jsonp(result);
     }).catch(next);
 };
@@ -83,6 +88,11 @@ exports.coupon = function(req, res, next) {
             result.data.startTime = moment.unix(result.data.startTime).format('YYYY.M.D');
             result.data.endTime = moment.unix(result.data.endTime).format('YYYY.M.D');
         }
+        res.set({
+            'Cache-Control': 'no-cache',
+            Pragma: 'no-cache',
+            Expires: (new Date(1900, 0, 1, 0, 0, 0, 0)).toUTCString()
+        });
         res.jsonp(result);
     }).catch(next);
 };