According to the [caching docs][1]:
> Anything that is served from the filesystem (a Rack::File) is cached for 12
> hours.
That's great, but what if we want to use [Rack::StaticCache][2] (via
the rack-contrib project) to cache static assets for more than 12
hours? Does Heroku allow this? I tried serving an image from a simple
Rack app:
require 'rubygems'
require 'rack/contrib'
require 'rack'
use Rack::StaticCache, :urls => ["/images"], :root => "public"
run lambda { |env| [200, {'Content-Type' => 'text/html', 'Hello
World!' }
The image had a 'Cache-Control' header value of `public, max-
age=43200`, seemingly ignoring the header values set by
Rack::StaticCache. Is there a way around this?
[1]: http://docs.heroku.com/http-caching
[2]:
http://github.com/rack/rack-contrib/blob/master/lib/rack/contrib/static_cache.rb
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