mapbox/node-tilejson — pull request #15 by mojodna (2013-12-08 21:48:54+00:00)
Title: Fall back to the upstream Content-Type

When loading PBFs via `tilejson`, `Content-Type` is coming back `undefined` (because `getMimeType()` doesn't know what to make of them). This falls back to using the upstream-provided `Content-Type`.

Is there a reason that the upstream isn't inherently trusted to know what it's serving?