sale special banner

@@ -529,7 +529,7 @@ exports.getSaleSpecialData = (id, params, channel) => {
                     limit: limit,
                     attribute_not: 2
                 });
-            let banner = JSON.parse(data.banner_img) || [];
+            let banner = data.banner_img ? JSON.parse(data.banner_img) : [];
 
             Object.assign(resData, {
                 mainBanner: {