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http://jira.magnolia.info/browse/MAGNOLIA-2280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17259#action_17259
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gjoseph edited comment on MAGNOLIA-2280 at 7/25/08 7:52 PM:
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Ok, I think we found how this is happening - it would only be the case for
"docroot" files or other documents served from the filesystem, where the cms
filter is bypassed and thus Tomcat's DefaultServlet serves the content.
* Request #1 from client A (no {{if-modified-since}} header since it's its
first request for this document)
** Cache filter says "Store".
** Css gets served by Tomcat's DefaultServlet.
** Css gets cached correctly.
-- here, for some reason, the cache entry expires.
* Request #2 from client A : Has {{if-modified-since}} header.
** Cache filter says "Store".
** Tomcat's DefaultServlet sees the {{if-modified-since}} header, sees that
the file (on the filesystem) has not been modified since then, just serves a 304
** 304 gets cached.
* Request #3 from client A : even if no {{if-modified-since}} header, cache
filter will serve the cached content. If there was no {{if-modified-since}}
header in the request, it means the browser doesn't have that file in its
cache, so it can't do much else than display a blank page.
was (Author: gjoseph):
Ok, I think we found how this is happening:
* Request #1 from client A (no {{if-modified-since}} header since it's its
first request for this document)
** Cache filter says "Store".
** Css gets served by DefaultTomcatServlet.
** Css gets cached correctly.
-- here, for some reason, the cache entry expires.
* Request #2 from client A : Has {{if-modified-since}} header.
** Cache filter says "Store".
** DefaultTomcatServlet sees the {{if-modified-since}} header, sees that the
file (on the filesystem) has not been modified since then, just serves a 304
** 304 gets cached.
* Request #3 from client A : even if no {{if-modified-since}} header, cache
filter will serve the cached content. If there was no {{if-modified-since}}
header in the request, it means the browser doesn't have that file in its
cache, so it can't do much else than display a blank page.
> Investigate intermittent and undetermined reports of corrupted css
> ------------------------------------------------------------------
>
> Key: MAGNOLIA-2280
> URL: http://jira.magnolia.info/browse/MAGNOLIA-2280
> Project: Magnolia
> Issue Type: Bug
> Components: admininterface, cache
> Affects Versions: 3.6 RC4
> Reporter: Jan Haderka
> Assignee: Philipp Bracher
> Fix For: 3.6.1
>
>
> As reported in user list, css for admin interface is sometimes not served
> properly.
> This issue is to collect the evidence of the problem and to triage the source
> of it.
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