fix

-proxy: d:\dev\traefik\traefik.exe -c d:\dev\traefik\conf.toml
-mem: d:\dev\memcached\memcached.exe
+proxy: d:\soft\traefik\traefik.exe -c d:\soft\traefik\conf.toml
+mem: d:\soft\memcached\memcached.exe -vv

 const config = global.yoho.config;
 const memcachedSession = require('yoho-express-session');
-const onHeaders = require('on-headers');
 const _ = require('lodash');
 const uuid = require('uuid');
 
@@ -44,10 +43,8 @@ function yohoSession(opts) {
             writable: false
         });
 
-        onHeaders(res, function() {
-            // 备份数据
-            req[opts.backSession].sessionBack = req.session;
-        });
+        // 备份数据
+        req[opts.backSession].sessionBack = req.session;
 
         next();
     };

@@ -36,7 +36,6 @@
     "md5": "^2.1.0",
     "moment": "^2.14.1",
     "morgan": "^1.7.0",
-    "on-headers": "^1.0.1",
     "oneapm": "^1.2.20",
     "passport": "^0.3.2",
     "passport-douban": "0.0.1",