GET /%20/foo 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=f309cfbd10197a230c42dd17dbf5cca8a0722564cb40a872d25623cfa758e374

