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http://jira.magnolia-cms.com/browse/MAGNOLIA-2755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=27074#action_27074
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Grégory Joseph commented on MAGNOLIA-2755:
------------------------------------------

Jan, that piece is now in the {{SetExpirationsHeader}} cache executor afaik; 
the missing piece is that we don't look at the etags.ß

> Magnolia Cache returns 200 for 'docroot' CachedPage if request includes 
> If-None-Match header
> --------------------------------------------------------------------------------------------
>
>                 Key: MAGNOLIA-2755
>                 URL: http://jira.magnolia-cms.com/browse/MAGNOLIA-2755
>             Project: Magnolia
>          Issue Type: Bug
>          Components: cache
>    Affects Versions: 4.0.1
>         Environment: Magnolia Community 4.0.1 on Tomcat 6.0.16
>            Reporter: Dean Arnold
>            Assignee: Boris Kraft
>            Priority: Critical
>             Fix For: 4.3
>
>
> The current AbstractExecutor.ifModifiedSince method is always returning true 
> if the request for a cached page includes the 'If-None-Match' header.
> The 'If-None-Match' header is/should be set by the browser as a request 
> header if the prior response for a page/resource included the Etag header, 
> which all 'docroot' cached responses from Magnolia (on Tomcat) do.
> Rather than returning 'true' to the IfModifiedSince method, if the 
> 'If-None-Match' header is present in the request, the cache should compare 
> its value with that of the 'Etag' header that is stored with the CachedPage 
> headers. If the ETag header is not present, the cache should fall back on 
> last modified date.
> N.B. the Etag header being added to 'docroot' resources e.g. css/js/images 
> etc. It is not added for Magnolia repository managed content.

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