无效的尝试重构不可迭代的实例-Bot 4.0 WebChat.js

Question

[[对象错误]：{消息：“无效地破坏不可迭代的尝试实例”，堆栈：“ TypeError：无效的破坏尝试e.exports上的不可迭代实例（https://cdn.botframework.com/botframework-webchat/latest/webchat.js:1:566613）在e.exports处t.unstable_runWithPriority（https://cdn.botframework.com/botframework-webchat/latest/webchat.js:1:351563）卢比（https://cdn.botframework.com/botframework-webchat/latest/webchat.js:1:339772）在Ps（https://cdn.botframework.com/botframework-webchat/latest/webchat.js:1:339567）“}

 (async function () {
        const res = await fetch('https://tokenservice/api/DLToken', { method: 'POST' });        
        const {token}  = await res.json();
        console.log({token});
        window.WebChat.renderWebChat(
            {
                bot: bot,
                directLine: window.WebChat.createDirectLine({token}),
                user: user,
                speechOptions: speechOptions,
                resize: 'detect',
                styleOptions: styleOptions
            },
            document.getElementById('BotChatGoesHere')
        );

我在Edge和IE中遇到此错误，在Chrome中正常运行。请提出解决方案，有义务。

Answer 1

IE 11不支持async/await关键字。我们需要在IE中使用es5捆绑软件。请尝试改用https://cdn.botframework.com/botframework-webchat/latest/webchat-es5.js。

参考：

Latest WebChat : IE11 Compatibility

Sample - Getting Started with Web Chat CDN with ES5 Polyfills