head cache

@@ -266,7 +266,7 @@ async function requestHeaderData(type) {
 
         resData = template(resData);
 
-        if (res[0] && res[0].data && res[1] && res[1].data) {
+        if (!_.isEmpty(res[0].data) && !_.isEmpty(res[1].data)) {
             cacheHeaderHtml[type] = resData;
         }
     } else {

@@ -56,7 +56,7 @@
     "urlencode": "^1.1.0",
     "uuid": "^2.0.2",
     "yoho-express-session": "^2.0.0",
-    "yoho-node-lib": "=0.5.16",
+    "yoho-node-lib": "^0.5.12",
     "yoho-zookeeper": "^1.0.8"
   },
   "devDependencies": {