guardian/frontend — pull request #863 by commuterjoy (2013-05-14 20:40:05+00:00)
Title: Fastly control headers

- X-Gu-Stale-While-Revalidate - fastly emulation of stale-while-revalidate
- X-Gu-Stale-If-Error - fastly emulation of stale-if-error
- X-Gu-Cache-Control - the cache-control header fastly should send to the user

As discussed with @gklopper