update

@@ -142,7 +142,11 @@
 
     window.cookie = cookie;
 
-    var url = 'yohobuy://yohobuy.com/goapp?openby:yohobuy={"action":"go.home","params":{"gender":"1","channel":"2"}}';
+    var params = queryString();
+
+    var openbyYohobuy = decodeURIComponent(params['openby:yohobuy']) || '{"action":"go.home","params":{"gender":"1","channel":"2"}}';
+
+    var url = 'yohobuy://yohobuy.com/goapp?openby:yohobuy=' + openbyYohobuy;
     var isWechat = /micromessenger/i.test(navigator.userAgent || '');
 
     if(isWechat){
@@ -157,12 +161,10 @@
     var androidExp = new RegExp('MQQBrowser');//安卓QQ内置浏览器正则
     var isAndroidQQ = androidExp.test(navigator.userAgent);  //判断是不是QQ内置浏览器
 
-    var version, type, appid, td, params;
-
-    params = queryString();
+    var version, type, appid, td;
 
     if(params.union_type){
-        url = 'yohobuy://yohobuy.com/goapp?ct='+params.union_type+'&openby:yohobuy={"action":"go.home","params":{"gender":"1","channel":"2"}}';
+        url = 'yohobuy://yohobuy.com/goapp?ct='+params.union_type+'&openby:yohobuy=' + openbyYohobuy;
     }
 
     if (isiOS) {