无法使用移动数据从Google财经获取回复

Question

我想从https://www.google.com/finance/converter?a=1&from=USD&to=BDT获得转换后的费率，如果设备连接到wifi，一切都能正常工作。但是，如果我使用移动数据调用API，我只会获得部分响应。移动数据响应有限制吗？还是出于其他原因？

的问候。

private class GetConvertCurrency extends AsyncTask<String, Void, String> {

    @Override
    protected void onPreExecute() {
        super.onPreExecute();

    }

    @Override
    protected String doInBackground(String... strings) {
        HttpHandler sh = new HttpHandler();
        String data=null;
        HttpURLConnection urlConnection1st = null;
        HttpURLConnection urlConnection2nd = null;
        HTTPUtil.disableConnectionReuseIfNecessary();

        String responseStr;
        StringBuffer buffer = new StringBuffer();
        try {
            url=strings[0];              
            URL urlToRequest = new URL(url);
            Log.e("URl",urlToRequest.toString());
            HttpURLConnection urlConnection = (HttpURLConnection) urlToRequest.openConnection();

            try {
                BufferedReader bufferedReader = new BufferedReader(
                        new InputStreamReader(
                                urlConnection.getInputStream()));
                System.out.println("urlConnection.getResponseCode() = " + urlConnection.getResponseCode());
                StringBuilder stringBuilder = new StringBuilder();
                String line;
                while ((line = bufferedReader.readLine()) != null) {
                    stringBuilder.append(line).append("\n");
                }
                bufferedReader.close();
                return stringBuilder.toString().trim();
            } finally {
                urlConnection.disconnect();
            }
        }
        catch(Throwable t) {
            t.printStackTrace();
        }
        return data;
    }

    @Override
    protected void onPostExecute(String s) {

        StringBuffer buffer = new StringBuffer();
        String data = null;
        if(s!=null){
            Document doc = null;
            doc = Jsoup.parse(s);
            String title = doc.title();
            buffer.append("Title: " + title + "rn");
            Elements topicList = doc.select("span.bld");
            buffer.append("Topic listrn");
            for (Element topic : topicList) {
                data = topic.text();
            }
        }
        country_conversion_rate.put(countryData.getPrefix().trim(),s);
        if(data!=null)upDateView(data);
        else upDateViewWhenConversionRateNull();

    }
}