A complex type that controls whether CloudFront caches the response to requests using the specified HTTP methods. There are two choices:
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CloudFront caches responses to GET and HEAD requests.
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CloudFront caches responses to GET, HEAD, and OPTIONS requests.
If you pick the second choice for your Amazon S3 Origin, you may need to forward Access-Control-Request-Method, Access-Control-Request-Headers, and Origin headers for the responses to be cached correctly.
