From f2eda1b84e7448f9982f7b6e56522c7d13a95af4 Mon Sep 17 00:00:00 2001
From: keenwon <semanwmj@yeah.net>
Date: Wed, 7 Sep 2016 16:57:51 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0debug=E4=BF=A1=E6=81=AF?=
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---
 lib/jsonp.js | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/lib/jsonp.js b/lib/jsonp.js
index 9b0e452..b1fc406 100644
--- a/lib/jsonp.js
+++ b/lib/jsonp.js
@@ -18,15 +18,29 @@ function jsonp(app, options = {}) {
         callbackFn = defaultcallbackFn;
     }
 
+    debug(`callback function name: ${callbackFn}`);
+
     app.context.jsonp = function (data) {
-        var callback = this.query[callbackFn];
+        var callback = this.query[callbackFn],
+            contentType = 'application/json',
+            response;
+
+        if (this.method !== 'GET') {
+            debug('the request mehtod is not "GET", return.');
+            return;
+        }
 
-        if (this.method !== 'GET' || !callback) {
+        if(!callback) {
+            debug(`${callbackFn} is undefined, return.`);
             return;
         }
 
-        this.type = 'application/json';
-        this.body = `${callback}(${JSON.stringify(data)})`;
+        response = `${callback}(${JSON.stringify(data)})`;
+
+        this.type = contentType;
+        this.body = response;
+
+        debug(`response: ${response}`);
     }
 }