DOC: cache: Add new caching limitation information
Responses that do not have an explicit expiration time or a validator
will not be cached anymore.
Must be backported if cc9bf2e ("MEDIUM: cache: Change caching
conditions") is backported.
diff --git a/doc/configuration.txt b/doc/configuration.txt
index ee93b39..ccc116e 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -14300,6 +14300,9 @@
- If the response contains a Vary header
- If the Content-Length + the headers size is greater than "max-object-size"
- If the response is not cacheable
+- If the response does not have an explicit expiration time (s-maxage or max-age
+ Cache-Control directives or Expires header) or a validator (ETag or Last-Modified
+ headers)
- If the request is not a GET
- If the HTTP version of the request is smaller than 1.1