tree abe94ca9f27fa0322e0fda2ee4922e08e91bcdb9
parent d07db6c27de2a95fec3ca4c38845b7c4347cfae8
author Roman Arutyunyan <arut@nginx.com> 1482405934 +0300
committer Roman Arutyunyan <arut@nginx.com> 1482405934 +0300

Cache: support for stale-while-revalidate and stale-if-error.

Previously, there was no way to enable the proxy_cache_use_stale behavior by
reading the backend response.  Now, stale-while-revalidate and stale-if-error
Cache-Control extensions (RFC 5861) are supported.  They specify, how long a
stale response can be used when a cache entry is being updated, or in case of
an error.