R1:87f11a091df7

Minor improvements to handling Aphlict status code

Summary: Self explanatory.

Test Plan: `curl`ed a few URLs.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11147