GitHub - JakeChampion/fetch: A window.fetch JavaScript polyfill.If you believe you found a bug with how fetch behaves in your browser, please don't open an issue in this repository unless you are testing in an old version of a browser that doesn't support window.fetch natively. Make sure you read this entire readme, especially the Caveats section, as there's probably a known work-around for an issue you've found. This project is a polyfill, and since all moder
ES6-Promiseってどう読み込めばいい？polyfillの使い方 | teratail
