fix qrcode

@@ -77,10 +77,9 @@ const sessionEffective = (req, res, next) => {
         refer = config.siteUrl;
     }
 
-    // res.redirect(helpers.urlFormat('/signin.html', {
-    //        refer: refer
-    //    }));
-    next();
+    res.redirect(helpers.urlFormat('/signin.html', {
+           refer: refer
+       }));
 };
 
 // 查看二维码