fix session key

@@ -53,7 +53,7 @@ function doPassportCallback(req, res, user) {
                         refer: refer
                     });
                 } else if (result.data['is_bind'] === 'Y' && result.data.uid) {//eslint-disable-line
-                    return loginService.syncUserSession(result.data.uid, result.data.session_key, req, res).then(() => {
+                    return loginService.syncUserSession(result.data.uid, req, res, result.data.session_key).then(() => {
                         return refer;
                     });
                 }
@@ -178,7 +178,7 @@ const local = {
                 }
             }());
 
-            loginService.syncUserSession(user.uid, user.session_key, req, res).then(() => {
+            loginService.syncUserSession(user.uid, req, res, user.session_key).then(() => {
                 return res.json({
                     code: 200,
                     data: {

@@ -24,10 +24,12 @@ const signin = (type, area, profile, password, shoppingKey) => {
     return loginBy[type](area, profile, password, shoppingKey);
 };
 
-const syncUserSession = (uid, sessionKey, req, res) => {
-    cache.set(`java_session_key:${uid}`, sessionKey).catch(() => {
-        global.yoho.logger.error('write session key fail');
-    });
+const syncUserSession = (uid, req, res, sessionKey) => {
+    if (sessionKey) {
+        cache.set(`java_session_key:${uid}`, sessionKey).catch(() => {
+            global.yoho.logger.error('write session key fail');
+        });
+    }
 
     return Promise.all([userService.profile(uid), cartService.goodsCount(uid)]).spread((userInfo, count) => {
         let token = sign.makeToken(uid);

@@ -24,7 +24,7 @@ module.exports = () => {
                 });
                 res.removeHeader('Pragma');
                 res.removeHeader('Expires');
-            } else if (req.get('X-Requested-With') === 'XMLHttpRequest') {
+            } else if (req.xhr) {
                 res.set('Cache-Control', 'no-cache');
             } else {
                 res.set({

@@ -63,7 +63,7 @@
     "uuid": "^2.0.2",
     "winston": "^2.2.0",
     "winston-daily-rotate-file": "^1.1.4",
-    "yoho-node-lib": "0.1.26",
+    "yoho-node-lib": "0.1.27",
     "yoho-zookeeper": "^1.0.3"
   },
   "devDependencies": {