alphagov/performance-frontend — pull request #4 by jabley (2014-12-08 00:44:53+00:00)
Title: Introduce worker pool for backend API

I don’t think this is thread-safe, but it’s a start towards deduplicating
backing service requests.
Approach inspired by
http://blog.gitorious.org/2014/08/11/golang-patterns-for-serving-on-demand-generated-content/