make-fetch:使用异步迭代器实现自己的`fetch（）`

取得 使用node.js流实现自己的fetch() 用法 npm i --save make-fetch const makeFetch = require ( 'make-fetch' ) const fetch = makeFetch ( async ( request ) => { const { url , // String representing request URL headers , // An object mapping header titles to values referrer , // An optional string specify the referrer method , // The HTTP method, will always be uppercase, default is `GET` bo