diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/http/cache.rb')
| -rw-r--r-- | actionpack/lib/action_dispatch/http/cache.rb | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/actionpack/lib/action_dispatch/http/cache.rb b/actionpack/lib/action_dispatch/http/cache.rb index ec5704ff9e..2107b4d224 100644 --- a/actionpack/lib/action_dispatch/http/cache.rb +++ b/actionpack/lib/action_dispatch/http/cache.rb @@ -166,16 +166,23 @@ module ActionDispatch @cache_control = cache_control_headers end - def handle_conditional_get! - set_conditional_cache_control!(@cache_control) - end - + DEFAULT_CACHE_CONTROL = "max-age=0, private, must-revalidate".freeze NO_CACHE = "no-cache".freeze PUBLIC = "public".freeze PRIVATE = "private".freeze MUST_REVALIDATE = "must-revalidate".freeze - def set_conditional_cache_control!(cache_control) + def handle_conditional_get! + # Normally default cache control setting is handled by ETag + # middleware. But, if an etag is already set, the middleware + # defaults to `no-cache` unless a default `Cache-Control` value is + # previously set. So, set a default one here. + if (etag? || last_modified?) && !self._cache_control + self._cache_control = DEFAULT_CACHE_CONTROL + end + end + + def merge_and_normalize_cache_control!(cache_control) control = {} cc_headers = cache_control_headers if extras = cc_headers.delete(:extras) |