How can I force a browser to cache my view?

Hi,

I have a problem getting the browser to cache the data returned by my view. The basic idea behind this is, I want to download the data via ajax to provide a progress dialog and afterwards I set document.location.href to the same url and use the cached data. last_modified sets the last modified header as expected. The creation also behaves like expected. The line "document.location.href = href + '?timestamp=' + timestamp" creates a second GET for my view, but I get a 200 http code instead of a 304. And if I look at my browser cache contents, I can see, that my data is not cashed at call. The caching even doesn't if I open the url in the browser directly.

Can I force the browser to cache my data?

Best regards,
Oliver

My Django view:

@login_required
@redweb_view
@last_modified(last_modified_func)
def show_pdf(request, page_id, quality):
    page = Page.objects.get(pk=page_id)
    with create_client_from_request(request).create_session() as s:
        pdf_data = s.print_element(page_id, image_quality=quality)
    response = HttpResponse(mimetype='application/pdf')
    response['Content-Disposition'] = 'attachment; filename=%s.pdf' % page.name
    response.write(pdf_data)
    return response

My Javascript code:

            var timestamp = new Date().getTime();
            $.get(href + '?timestamp=' + timestamp).success(function() {
                document.location.href = href + '?timestamp=' + timestamp;
            });

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