部分用户扫码后，success回调返回的数据是：{"charSet":"utf-8","result":"https://u.wechat.com/MPS4h4iE3B01tZdd-QgMeh4","codeVersion":5,"errMsg":"scanCode:ok","rawData":"aHR0cHM6Ly91LndlY2hhdC5jb20vTVBTNGg0aUUzQjAxdFpkZC1RZ01laDQ=","scanType":"QR_CODE"}

result变成了微信官网地址，原始数据base64解码出来的也是微信官网地址

但实际上二维码的内容是这样的：{errMsg: "scanCode:ok", result: "VZ7DNL7LCFuHZrwhEPIIn160UpRbJuCG361w/eHSZ1I=", scanType: "QR_CODE", charSet: "ISO8859-1", rawData: "Vlo3RE5MN0xDRnVIWnJ3aEVQSUluMTYwVXBSYkp1Q0czNjF3L2VIU1oxST0="}