Merge branch 'hotfix/add-cache' into gray

@@ -214,9 +214,7 @@ function getKeywordsInfo(keywords) {
 // skn 用来key
 function _getRecommendKeywords(smallSort, skn) { // eslint-disable-line
     return redis.all([['get', `global:yoho:seo:keywords:sortId:${smallSort}:page:1`]]).then(res => {
-        return res[0];
-    }).then(result => {
-        return getKeywordsInfo(JSON.parse(result || '[]'));
+        return getKeywordsInfo(JSON.parse(res[0] || '[]'));
     });
 }