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https://issues.jboss.org/browse/RF-13294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brian Leathem updated RF-13294:
-------------------------------
Fix Version/s: 3.Future
> Broken caching of static resources in IE
> ----------------------------------------
>
> Key: RF-13294
> URL: https://issues.jboss.org/browse/RF-13294
> Project: RichFaces
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Affects Versions: 3.3.3.Final
> Reporter: Nicholas Oxhøj
> Fix For: 3.Future
>
>
> There seems to be a problem with the caching headers sent by RichFaces in
> relation to IE (IE8 at least which is the one I have tested).
> The default for RichFaces, is to tell the browser to cache static resources
> for 24 hours:
> {code}
> HTTP/1.1 200 OK
> Server: Apache-Coyote/1.1
> Cache-control: max-age=86400
> Last-Modified: Tue, 29 Oct 2013 13:01:56 GMT
> Expires: Wed, 30 Oct 2013 13:02:39 GMT
> Content-Type: text/javascript
> Content-Length: 117992
> Date: Tue, 29 Oct 2013 13:02:39 GMT
> {code}
> But it seems that when IE, after 24 hours, validates the file with a
> "If-Modified-Since" and receives a "304 Not Modified" response
> {code}
> HTTP/1.1 304 Not Modified
> Server: Apache-Coyote/1.1
> Date: Tue, 29 Oct 2013 13:07:56 GMT
> {code}
> it will *keep* re-validating the file on all subsequent pages/uses, whereas
> e.g. FireFox _seems_ to reapply the "max-age" of 24 hours, that it was told
> on the initial GET of the file.
> I haven't been able to find any specifications, blog posts or anything else
> related to how the browser should react _after_ having received a "304 Not
> Modified" response.
> But it seems that if you add a "Cache-control: max-age=..." header to the
> "304 Not Modified" response in InternetResourceService#serviceResource(), IE
> will not re-validate the file until that max-age has expired.
> {code}
> HTTP/1.1 304 Not Modified
> Server: Apache-Coyote/1.1
> Cache-control: max-age=86400
> Date: Tue, 29 Oct 2013 13:07:56 GMT
> {code}
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