$ curl -v http://localhost:8000/v0/visitors
*   Trying ::1...
* TCP_NODELAY set
* Connection failed
* connect to ::1 port 8000 failed: Connection refused
*   Trying 127.0.0.1...
* TCP_NODELAY set
* Connected to localhost (127.0.0.1) port 8000 (#0)
> GET /v0/visitors HTTP/1.1
> Host: localhost:8000
> User-Agent: curl/7.54.0
> Accept: */*
>
< HTTP/1.1 200 Okay
< Date: Fri, 09 Nov 2018 16:51:59 GMT
< Last-Modified: Fri, 09 Nov 2018 16:51:59 GMT
< Server: Racket
< Content-Type: text/html; charset=utf-8
< Transfer-Encoding: chunked
< 
* transfer closed with outstanding read data remaining
* stopped the pause stream!
* Closing connection 0
curl: (18) transfer closed with outstanding read data remaining
00000000000000000000000000000000000000000000000000000000000