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

["Andi Huber (JIRA)" <ji...@apache.org>]

Andi Huber created ISIS-1619:
--------------------------------

             Summary: 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
             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 Pragma: "no-cache"

@Action(semantics=SemanticsOf.NON_IDEMPOTENT)
public Blob download() {
    return new Blob("blob", "application/json", "{}".getBytes());
}





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