allocate js cookie in middleware, update res cookie distribution

app.js

@@ -45,11 +45,20 @@ app.use(express.static(path.resolve(__dirname, 'public')))
 app.use(function(req, res, next) {
   const proxy = req.query.proxy
   if (proxy) {
-    req.headers.cookie = req.headers.cookie + `__proxy__${proxy}`
+    req.headers.cookie += `__proxy__${proxy}`
   }
   next()
 })
 
+// 补全缺失的cookie
+const { completeCookie } = require('./util/init')
+app.use(function(req, res, next) {
+  let cookie = completeCookie(req.headers.cookie)
+  req.headers.cookie = cookie.map(x => x[0]).concat(req.headers.cookie || []).join('; ')
+  res.append('Set-Cookie', cookie.map(x => (x.concat('Path=/').join('; '))))
+  next()
+})
+
 // 因为这几个文件对外所注册的路由 和 其他文件对外注册的路由规则不一样, 所以专门写个MAP对这些文件做特殊处理
 const UnusualRouteFileMap = {
   // key 为文件名, value 为对外注册的路由