User-Agent字符串存在开发用插值未成功构建
User-Agent:Mozilla/5.0 (iPhone; CPU iPhone OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1 wechatdevtools/6.5.6 MicroMessenger/{{version}} Language/zh_CN webview/0