pagespeed/ngx_pagespeed — pull request #653 by oschaaf (2014-04-02 17:19:18+00:00)
Title: downstream-caching: Fix pagespeed resource response headers

- Make `kPreserveOnlyCacheControl` do what it says on the tin
- Serve pagespeed resources with the response headers computed
by PSOL regardless of whether downstream caching is configured.

Fixes https://github.com/pagespeed/ngx_pagespeed/issues/652