Cross-origin resource sharing (CORS) defines a way for client web applications that are loaded in one domain to interact with resources in a different domain. With CORS support, you can build rich client-side web applications with Amazon S3 and selectively allow cross-origin access to your Amazon S3 resources.

跨源资源共享 (CORS) 定义了在一个域中加载的客户端 Web 应用程序与另一个域中的资源交互的方式。借助 CORS 支持，您可以使用 Amazon S3 构建各种富客户端 Web 应用程序，并选择性地允许跨源访问您的 Amazon S3 资源。 本部分提供 CORS 概述。

With CORS support, you can build rich client-side web applications with Amazon S3 and selectively allow cross-origin access to your Amazon S3 resources. This section shows you how to enable CORS using the Amazon S3 console, the Amazon S3 REST API, and the AWS SDKs.

S3 adds CORS headers only when http request has the Origin header. CloudFront does not forward Origin header by default. You need to whitelist Origin header in Behavior settings for your CloudFront Distribution.

Amazon Simple Storage Service (Amazon S3) is an object storage service with cost-effective storage classes for all data storage use cases. Amazon S3 lets you create a CORS configuration document with rules that identify the origins you will allow to access your S3 data, the operations (HTTP methods) you will support for each origin, and other ...

您可以使用 Amazon S3 控制台或 AWS 命令行界面（AWS CLI）将跨源资源共享（CORS）规则应用于您的桶。 如需在您的 Amazon S3 桶上测试 CORS 规则，请使用 cURL 命令。

You can apply Cross-Origin Resource Sharing (CORS) rules to your bucket using either the Amazon S3 console or AWS Command Line Interface (AWS CLI). To test the CORS rules on your Amazon S3 bucket, use the cURL command.

2025年1月10日 · Let’s understand why there is a need for cors in s3. Amazon S3 stores static assets like images, videos, and other files that web applications often need to fetch and display on the client...

2023年12月29日 · Amazon S3（Simple Storage Service）是一项强大的对象存储服务，而跨域资源共享（CORS）是为了在 Web 应用中安全实现跨域数据传输而设计的标准。 在本文中，我们将深入探讨如何在 Amazon S3 上实战配置 CORS，确保安全地处理跨域请求。

2012年8月31日 · You can use CORS support to build web applications that use JavaScript and HTML5 to interact directly with resources in Amazon S3 without the need for a proxy server. You can implement HTML5 drag and drop uploads to Amazon S3, show upload progress, or update content directly from your web applications.