fix issue load session

Author: rbcervilla

README.md

@@ -7,7 +7,7 @@ It uses [`go-redis`](https://github.com/go-redis/redis) as client to connect to
 ## Example
 ``` go
 client := redis.NewClient(&redis.Options{
-    Addr:     redisAddr,
+    Addr:     "localhost:6379",
 })
 
 // New default RedisStore

redisstore.go

@@ -54,7 +54,14 @@ func (s *RedisStore) New(r *http.Request, name string) (*sessions.Session, error
 	opts := s.options
 	session.Options = &opts
 	session.IsNew = true
-	err := s.load(session)
+
+	c, err := r.Cookie(name)
+	if err != nil {
+		return session, nil
+	}
+	session.ID = c.Value
+
+	err = s.load(session)
 	if err == nil {
 		session.IsNew = false
 	} else if err == redis.Nil {