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======== BEGIN INBOUND STREAM ========
GET http://example.com/ HTTP/1.1
Host: example.com
User-Agent: demo

======== BEGIN OUTBOUND STREAM ========
HTTP/1.1 200 OK
Date: Thu, 31 Dec 2015 18:26:56 GMT
Content-Type: text/plain
Content-Length: 14
Via: 1.1 proxy.example.net
Cache-Control: no-transform
Warning: 214 proxy.example.net "spelling fixed"

Hello world!
