developmentseed/bones — pull request #34 by springmeyer (2011-12-01 01:36:51+00:00)
Title: allow head requests 

Issuing a HEAD request against a Tilemill tile leads to an error:

```
$ curl -I http://localhost:8889/tile/autostyle/2/1/1.png
HTTP/1.1 403 Forbidden
X-Powered-By: Express
Content-Type: text/plain
Connection: keep-alive
```

And terminal output like: 'This type of response MUST NOT have a body. Ignoring data passed to end()'

This pull fixes the problem and allows the head request to complete:

```
$ curl -I http://localhost:8889/tile/autostyle/2/1/1.png
HTTP/1.1 200 OK
X-Powered-By: Express
Content-Type: image/png
Content-Length: 19642
max-age: 3600
Connection: keep-alive
```