fix

index.js

@@ -13,7 +13,7 @@ function template(tpml, args) {
 }
 
 function resJson(obj) {
-	res.writeHead(200, {
+	this.writeHead(200, {
 		"content-type": "application/json"
 	});
 	this.end(JSON.stringify(obj));

package.json

@@ -1,6 +1,6 @@
 {
   "name": "webframe",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Web server.",
   "main": "index.js",
   "scripts": {