

======== BEGIN INBOUND STREAM ========
POST /articles/ HTTP/1.1
Host: example.com
User-Agent: demo
Content-Type: text/plain
Content-Length: 16

Hello world!

======== BEGIN OUTBOUND STREAM ========
HTTP/1.1 413 Payload Too Large
Retry-After:300
Date: Thu, 31 Dec 2015 18:26:56 GMT
Content-Type: text/plain
Content-Length: 45

We're out of disk space, try again shortly.
