节点JS请求模块无法在Corporate Proxy中工作，并获得AssertionError [ERR_ASSERTION]

Question

在Corporate Proxy中，我设置了npm config设置。它正在工作。

npm config set https_proxy=http://username:password@proxy.example.com:8080
npm config set http_proxy=http://username:password@proxy.example.com:8080
npm config set proxy=http://username:password@proxy.example.com:8080

在Node.JS中，我使用了request模块来调用HTTP请求。它不起作用。我收到以下错误。

throw new AssertionError(obj);
  ^

AssertionError [ERR_ASSERTION]: 3646 == 0
    at ClientRequest.onConnect (C:\Users\Username\Documents\Workspace\node-course\web-server\node_modules\tunnel-agent\index.js:160:14)
    at Object.onceWrapper (events.js:284:20)
    at ClientRequest.emit (events.js:196:13)
    at Socket.socketOnData (_http_client.js:492:11)
    at Socket.emit (events.js:196:13)
    at addChunk (_stream_readable.js:290:12)
    at readableAddChunk (_stream_readable.js:271:11)
    at Socket.Readable.push (_stream_readable.js:226:10)
    at TCP.onStreamRead (internal/stream_base_commons.js:166:17)
[nodemon] app crashed - waiting for file changes before starting...

我的代码是

const url = 'https://jsonplaceholder.typicode.com/posts';

    request({ url, json: true }, (error, { body } = {}) => {
        console.log(error, body);
    })

我使用npm config set ...在NPM中添加的代理URL不起作用。

然后根据npm request文档（https://github.com/request/request#controlling-proxy-behaviour-using-environment-variables），我借助（https://docs.cloudfoundry.org/cf-cli/http-proxy.html）在Windows Machine中添加了环境变量。这也行不通。