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From "Jon Moore (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCLIENT-1183) HTTP/1.0 requests not serveable from cache
Date Thu, 12 Apr 2012 11:11:16 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252339#comment-13252339
] 

Jon Moore commented on HTTPCLIENT-1183:
---------------------------------------

Actually, an incoming HTTP/1.0 request gets upgraded to HTTP/1.1 by RequestProtocolCompliance,
and hence is suitable for being satisfied by the cache. The check in here is to guard against
non-HTTP/1.x requests being satisfied by the cache--since it doesn't understand those protocols
it is not safe for the cache to cache responses.

Can you produce a unit test that shows that an HTTP/1.0 request that receives a cacheable
response doesn't get served from cache?

                
> HTTP/1.0 requests not serveable from cache
> ------------------------------------------
>
>                 Key: HTTPCLIENT-1183
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1183
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: Cache
>            Reporter: Francois-Xavier Bonnet
>
> Any HTTP/1.0 request is considered as not serveable from cache (only HTTP/1.1 requests
are serveable from cache). This is implemented in method org.apache.http.impl.client.cache.CacheableRequestPolicy.isServableFromCache(HttpRequest)
> What is the reason for this behaviour? According to the specifications, HTTP/1.0 request
are supposed to be cacheable even if the mechanism is more primitive than for HTTP/1.1 requests
(only based on Expires and Last-Modified headers).

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