You can build a mini module with a code similar to:

        <template id="assets_backend" name="piwik_analytics assets" inherit_id="web.assets_backend">
            <xpath expr="." position="inside">
                <script type="text/javascript" src="/piwik_analytics/static/src/js/script_file.js"></script>
            </xpath>
        </template>

Hy, I think you're working with iframe.

Anyway in the action description, you could precise a refresh delay, maybe this could help

I am not completely sure of what your are trying to achieve, but if your intention is to tack usage using Google analytics there is a standard module doing just that called web_analytics. It will track web client actions. You can change it for your own purpose...