修正 nodejs 中 UA 头 version 未定义。

Author: wangxiao

src/browserify-wrapper/ajax.js

@@ -5,11 +5,12 @@
 
 'use strict';
 
-var http = require('http');
-var https = require('https');
-var url = require('url');
+const http = require('http');
+const https = require('https');
+const url = require('url');
 
-var Promise = require('../promise');
+const Promise = require('../promise');
+const VERSION = require('../version');
 
 // `keepAlive` option only work on Node.js 0.12+
 var httpAgent = new http.Agent({keepAlive: true});
@@ -43,7 +44,7 @@ module.exports = function _ajax(method, resourceUrl, data, success, error) {
     agent: transportAgent,
     headers: {
       'Content-Type': 'text/plain',
-      'User-Agent': 'AV/' + AV.version + ' (Node.js' + process.version + ')'
+      'User-Agent': 'AV/' + VERSION + ' (Node.js' + process.version + ')'
     }
   });
 
@@ -78,4 +79,4 @@ module.exports = function _ajax(method, resourceUrl, data, success, error) {
     success: success,
     error: error
   });
-}
+};