优化判断

index.js

@@ -10,7 +10,7 @@ import { serialize } from './lib/cookie.js'
 export default class Response {
   constructor(req, res) {
     this.origin = { req, res }
-    this.rendered = false
+    this.rendered = !!res.rendered
   }
 
   /**

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@gm5/response",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "type": "module",
   "description": "对Http的response进一步封装, 提供常用的API",
   "main": "index.js",