Create-react-app: TypeError on IE 11: Object doesn't support property or method 'includes'

์— ๋งŒ๋“  2017๋…„ 07์›” 26์ผ  ยท  3์ฝ”๋ฉ˜ํŠธ  ยท  ์ถœ์ฒ˜: facebook/create-react-app
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