GET /?X-Amz-Algorithm=AWS4-ECDSA-P256-SHA256&X-Amz-Credential=AKIDEXAMPLE%2F20150830%2Fservice%2Faws4_request&X-Amz-Date=20150830T123600Z&X-Amz-SignedHeaders=host%3Bmy-header1&X-Amz-Expires=3600&X-Amz-Region-Set=us-east-1&X-Amz-Signature=3045022100b6fa5712e476c23f411995e85747f62e9a25bdd718aac8692b3744dba106e1720220331a1e84a25e69c1ef07e63b3b76e1e78100f2ee020a3e66f127240901468912 HTTP/1.1
Host:example.amazonaws.com
My-Header1:value2
My-Header1:value2
My-Header1:value1

