无法使用 Froala 将图像上传到 S3

Question

我已经尝试了一天，但我无法修复它。它在控制台中出现此错误。

XMLHttpRequest cannot load https://s3-us-east-2.amazonaws.com/My-bucket. 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:4200' is therefore not allowed access.

这是我在 Angular2 上的代码

imageUploadToS3: {

bucket: 'flagfrog-article-cloud',
region: 's3-us-east-2',
keyStart: 'article-image/',
params: {
  acl: 'public-read', // ACL according to Amazon Documentation.
  AWSAccessKeyId: 'AKIAJEMDZVXVLMPDNA4A', // Access Key from Amazon.
  policy: 'Policy1498724219240', // Policy string computed in the backend.
  signature: 'flagfrogweb', // Signature computed in the backend.
}

这是我在 Amazon S3 上的 CORS 配置。

`<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<CORSRule>
    <AllowedOrigin>*</AllowedOrigin>
    <AllowedMethod>GET</AllowedMethod>
    <AllowedMethod>PUT</AllowedMethod>
    <AllowedMethod>POST</AllowedMethod>
    <AllowedMethod>DELETE</AllowedMethod>
    <MaxAgeSeconds>3000</MaxAgeSeconds>
    <AllowedHeader>Authorization</AllowedHeader>
</CORSRule>
</CORSConfiguration>
`

我在这里遗漏了什么吗？请帮忙

Answer 1

亚马逊不允许通配符来源。你的 CORS 配置应该是这样的：

<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<CORSRule>
    <AllowedOrigin>http://localhost:4200</AllowedOrigin>
    <AllowedMethod>GET</AllowedMethod>
    <AllowedMethod>PUT</AllowedMethod>
    <AllowedMethod>POST</AllowedMethod>
    <AllowedMethod>DELETE</AllowedMethod>
    <MaxAgeSeconds>3000</MaxAgeSeconds>
    <AllowedHeader>Authorization</AllowedHeader>
</CORSRule>
</CORSConfiguration>