fix should toString userId's

server/middlewares/add-return-to.js

@@ -1,10 +1,30 @@
+const pathsOfNoReturn = [
+  'link',
+  'auth',
+  'login',
+  'logout',
+  'signin',
+  'signup',
+  'fonts',
+  'favicon',
+  'js',
+  'css'
+];
+
+const pathsOfNoReturnRegex = new RegExp(pathsOfNoReturn.join('|'), 'i');
+
 export default function addReturnToUrl() {
   return function(req, res, next) {
     // Remember original destination before login.
     var path = req.path.split('/')[1];
-    if (/auth|login|logout|signin|signup|fonts|favicon/i.test(path)) {
+
+    if (req.method !== 'GET') {
       return next();
-    } else if (/\/stories\/\w+/i.test(req.path)) {
+    }
+    if (pathsOfNoReturnRegex.test(path)) {
+      return next();
+    }
+    if (/\/stories\/\w+/i.test(req.path)) {
       return next();
     }
     req.session.returnTo = req.path;