-
AWSAccessKeyId
-
acl
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Cache-Control, Content-Type, Content-Disposition, Content-Encoding, Expires
-
file
-
key
-
policy
-
success_action_redirect, redirect
-
success_action_status
-
x-amz-storage-class (STANDARD only)
-
x-amz-meta-*
-
x-amz-website-redirect-location
-
x-amz-server-side-encryption