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http://www.stripesframework.org/jira/browse/STS-630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=11589#action_11589
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Ben Gunter commented on STS-630:
--------------------------------
I tested it with telnet. What you see there is exactly what comes back from the
request. There is no Expires, Pragma, or Cache-control header at all, which is
by design. I don't know why IE would think those headers are there.
> @HttpCache(allow=true) not setting Cache-control, Pragma
> --------------------------------------------------------
>
> Key: STS-630
> URL: http://www.stripesframework.org/jira/browse/STS-630
> Project: Stripes
> Issue Type: Bug
> Components: ActionBean Dispatching
> Affects Versions: Release 1.5
> Environment: Win64, Tomcat 6, IE/FF
> Reporter: Matt Brock
> Assignee: Ben Gunter
> Priority: Minor
> Fix For: Release 1.5.1, Release 1.6
>
>
> The @HttpCache annotation isn't setting either the "Cache-control" or
> "Pragma" headers. In IE over SSL, this can potentially break file
> downloading for StreamingResolutions. In the following example, the action
> is annotated to prevent caching, but the inner method overrides this to allow
> it.
> ---
> @HttpCache(allow=false)
> public class MyUncachedAction implements ActionBean {
> @DefaultHandler
> public Resolution view() {
> return new ForwardResolution("test.jsp");
> }
> @HttpCache(allow=true)
> public Resolution download() {
> return new StreamingResolution("application/vnd.mx-excel") {
> public void stream(HttpServletResponse response) throws Exception {
> // output response, e.g.:
> // response.getOutputStream().write(...);
> // response.getOutputStream().flush();
> }
> }.setFilename("test.csv");
> }
> }
> ---
> The expiration header is properly set (line 87,
> net.sourceforge.stripes.controller.HttpCacheInterceptor), but the
> Cache-control and Pragma settings are left untouched, so you end up with a
> mix of directives that, under *most* circumstances, will simply expire the
> page, but in IE (because of the existence of the Cache-control/Pragma header)
> will keep the no-cache setting, causing the download to fail.
> The fix I've been using is to add empty values to the appropriate headers.
> E.g.-
> response.setHeader("Cache-control", "");
> response.setHeader("Pragma", "");
> More information on this can be found from Microsoft:
> http://support.microsoft.com/kb/323308
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