Starting today, Lambda@Edge enables you to further customize the delivery of content stored in an Amazon S3 bucket, by allowing you to access additional whitelisted headers, including custom headers, within origin-facing events. For example, you can configure Amazon CloudFront to cache and forward a country header to your S3 origin, and then use Lambda@Edge to dynamically redirect viewers to country-specific versions of your website, based on the viewer’s location. CloudFront also caches the responses to further improve the performance on subsequent requests to your website.
There is no additional fee for the new capability. To learn more about Lambda@Edge, visit the product page. For more information on how to use this new feature, see the following resources: