facebook-javascript-sdk - 如何通过javascript接收返回扩展访问令牌

Question

扩展后，我可以：

1. 请参阅浏览器上的扩展访问令牌：access_token=TOKEN&expires=EXPIRES
2. 错误消息“左侧分配无效”

如何从响应中获取令牌。

我的代码：

---

<script>
      window.onload = function() {

            FB.init({appId:422642254433770, cookie:true, status:true, xfbml:true });

            FB.getLoginStatus(function(response) {
                var uid = response.authResponse.userID;
                var accessToken = response.authResponse.accessToken;
                var accessTokenOld = response.authResponse.accessToken;

                //Extend access token                    
                var OauthParams = {};
                OauthParams['client_id'] = 'CLIEN ID';
                OauthParams['client_secret'] = 'CLIENT SECRET';
                OauthParams['grant_type'] = 'fb_exchange_token';
                OauthParams['fb_exchange_token'] = accessToken;
                OauthParams['response_type'] = 'token';

                FB.api('/oauth/access_token', 'post', OauthParams, function(extendResponse) {
                    console.log("Extend token: " + extendResponse.accessToken);
                });  
            });
        };

</script>