1124

======== BEGIN INBOUND STREAM ========
PUT /articles/123/ HTTP/1.1
Host: example.com
User-Agent: demo
If-None-Match: "F2j9LATV4"
Content-Type: text/plain
Content-Length: 16

Hello world!

======== BEGIN OUTBOUND STREAM ========
HTTP/1.1 304 Not Modified
Date: Thu, 31 Dec 2015 18:26:56 GMT

