質問編集履歴
1
エラー文の追加
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File without changes
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body
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@@ -18,7 +18,22 @@
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18
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at createError (createError.js:17)
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19
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at XMLHttpRequest.handleError (xhr.js:80)
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20
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```
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-
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21
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```
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22
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Request URL: http://localhost:4000/api/post
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Request Method: OPTIONS
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Status Code: 404 Not Found
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Remote Address: [::1]:4000
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Referrer Policy: no-referrer-when-downgrade
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Content-Length: 18
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Content-Type: text/plain
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29
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Date: Wed, 10 Jul 2019 17:36:01 GMT
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30
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Provisional headers are shown
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Access-Control-Request-Headers: content-type
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Access-Control-Request-Method: POST
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Origin: http://localhost:3000
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Referer: http://localhost:3000/post/finish
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User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36
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36
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```
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22
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### 該当のソースコード
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38
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39
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```React
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