Request and response behavior
The following sections explain how CloudFront processes viewer requests and forwards the requests to your Amazon S3 or custom origin, and how CloudFront processes responses from your origin, including how CloudFront processes and caches 4xx and 5xx HTTP status codes.
Topics
- Request and response behavior for Amazon S3 origins
- Request and response behavior for custom origins
- Request and response behavior for origin groups
- Adding custom headers to origin requests
- How CloudFront processes partial requests for an object (range GETs)
- How CloudFront processes HTTP 3xx status codes from your origin
- How CloudFront processes and caches HTTP 4xx and 5xx status codes from your origin