From d573aa680116aee6f2833175f0640681fcd2d548 Mon Sep 17 00:00:00 2001
From: Weston <weston@xentao.com>
Date: Tue, 23 Jan 2018 10:45:53 -0500
Subject: [PATCH] adding onExit

---
 lib/engine.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/engine.js b/lib/engine.js
index 7f540de7ad..8170807ee9 100644
--- a/lib/engine.js
+++ b/lib/engine.js
@@ -882,6 +882,9 @@ module.exports = function container (get, set, clear) {
       },
 
       exit: function (cb) {
+        if(s.strategy.onExit) {
+          s.strategy.onExit.call( s.ctx, s )
+        }
         cb()
       },