GET /?foo=b&foo=a http/1.1
Date:Mon, 09 Sep 2011 23:36:00 GMT
Host:host.foo.com
Authorization: AWS4-HMAC-SHA256 Credential=AKIDEXAMPLE/20110909/us-east-1/host/aws4_request, SignedHeaders=date;host, Signature=feb926e49e382bec75c9d7dcb2a1b6dc8aa50ca43c25d2bc51143768c0875acc

