我用fetch请求老是出现error = TypeError: Failed to fetch

Question

我用fetch请求老是出现error = TypeError: Failed to fetch，请问是为什么呢！

Answer 1

Parry 2018-02-10 23:08:59

提问里可以贴图的。

• 提问者 qq_JamesBond_0 #1

  已经重新提问，并且添加图片了

Answer 2

Parry 2018-02-10 22:04:30

可以截图下详细的错误吗？

• 提问者 qq_JamesBond_0 #1

  TypeError:Failed to fetch
  Message: “TypeError: Failed to fetch”

• 提问者 qq_JamesBond_0 #2

  我怎么把图片给你？
  加我1223510545

• 提问者 qq_JamesBond_0 #3

  Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8080' is therefore not allowed access. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the re