| import '@babel/polyfill'; | |
| import 'url-polyfill'; | |
| import setprototypeof from 'setprototypeof'; | |
| // React depends on set/map/requestAnimationFrame | |
| // https://reactjs.org/docs/javascript-environment-requirements.html | |
| // import 'core-js/es6/set'; | |
| // import 'core-js/es6/map'; | |
| // import 'raf/polyfill'; 只兼容到IE10不需要，况且fetch的polyfill whatwg-fetch也只兼容到IE10 | |
| // https://github.com/umijs/umi/issues/413 | |
| Object.setPrototypeOf = setprototypeof; |