[jira] [Commented] (ISIS-1619) Blob/Clob Action results are cached no matter what

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ISIS-1619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16639314#comment-16639314 ] 

ASF subversion and git services commented on ISIS-1619:
-------------------------------------------------------

Commit 36f3688b8dad9dff256e9a330220d33835fb7875 in isis's branch refs/heads/v2 from [~hobrom]
[ https://gitbox.apache.org/repos/asf?p=isis.git;h=36f3688 ]

ISIS-1619: properly handle action semantics in blob/clob request caching

Task-Url: https://issues.apache.org/jira/browse/ISIS-1619

> Blob/Clob Action results are cached no matter what
> --------------------------------------------------
>
>                 Key: ISIS-1619
>                 URL: https://issues.apache.org/jira/browse/ISIS-1619
>             Project: Isis
>          Issue Type: Bug
>          Components: Core: Viewer: Wicket
>    Affects Versions: 1.14.0
>            Reporter: Andi Huber
>            Assignee: Dan Haywood
>            Priority: Major
>             Fix For: 1.15.0
>
>
> If you click an Action that returns a Blob (download), the client receives a HTTP response header with an entry Pragma: "cache".
> If the Blob is dynamically changing with every request, the client will not see this changes. (As long as the request url stays the same.)
> Expected behavior would be (at least for this code snippet) to produce a new result with each invocation. 
> {code:title=SimpleObjectMenu.java|borderStyle=solid}
> @Action(semantics=SemanticsOf.NON_IDEMPOTENT)
> public Blob download() {
> 	return new Blob("blob", "application/json",
>               ("{\"now\" : \""+new java.util.Date()+"\"}").getBytes());
> }
> {code}
> But it does not!
> Steps to reproduce: 
> Take the simple-app artifact 1.14 and add above snippet to the SimpleObjectMenu.
> Consecutive calls of the download action will not be updated. Instead the client/browser provides cached data from an earlier request.



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