我只想在上面加上一个答案——这解决了我的问题。

要将AWS/CloudFront分发点设置为朝向CORS源标头，请单击进入分发点的编辑界面:

进入行为选项卡并编辑行为，将“基于所选请求头的缓存”从无更改为白名单，然后确保将Origin添加到白名单框中。有关更多信息，请参阅AWS文档中的配置CloudFront以尊重CORS设置。

S3现在要求它以Javascript对象符号格式出现。

[
 {
    "AllowedHeaders": [
        "*"
    ],
    "AllowedMethods": [
        "GET",
        "HEAD"
    ],
    "AllowedOrigins": [
        "*"
    ],
    "ExposeHeaders": []
 }
]

我建议根据您的需求更改AllowedOrigins和AllowedMethods。

我把它写如下:

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

为什么<AllowedHeader>*</AllowedHeader> is working and <AllowedHeader>Authorization</AllowedHeader> not?

我最近遇到了同样的问题，似乎AWS对我们定义CORS配置的方式做了一些更改。例如，如果你想允许某些方法在过去的S3桶上，你必须在编辑器上做这样的事情:

下面的配置与上面的配置相同，但采用数组的形式。

[
    {
        "AllowedHeaders": [
            "*"
        ],
        "AllowedMethods": [
            "GET",
            "PUT",
            "POST",
            "HEAD",
            "DELETE"
        ],
        "AllowedOrigins": [
            "*"
        ],
        "ExposeHeaders": [],
        "MaxAgeSeconds": 3000
    }
]

这是一种简单的工作方法。

我知道这是一个老问题，但仍然很难找到解决办法。

首先，我用Rails 4、Paperclip 4、CamanJS、Heroku和AWS S3构建了一个项目。

你必须使用crossorigin: "anonymous"参数请求你的图像。

    <img href="your-remote-image.jpg" crossorigin="anonymous"> 

Add your site URL to CORS in AWS S3. Here is a refference from Amazon about that. Pretty much, just go to your bucket, and then select "Properties" from the tabs on the right, open "Permissions tab and then, click on "Edit CORS Configuration". Originally, I had < AllowedOrigin> set to *. Just change that asterisk to your URL, be sure to include options like http:// and https:// in separate lines. I was expecting that the asterisk accepts "All", but apparently we have to be more specific than that.

对我来说是这样的。

对我来说，不加区域

Const s3 = new aws。S3({apiVersion: '2006-03-01'，区域:'us-west-2'});