Auto-refresh in iframe embedded dashboard

Is it possible to enable auto-refresh in dashboard embedded via iframe?

I don’t believe that it’s possible – not only that, but I tried to use “setInterval” in the parent page to reload the iframe, but because the webserver is a different host, I can’t do a reload using “iframe.windowContent.reload” – and the workaround of re-setting the iframe src doesn’t seem to reload it either. I could reload the entire page, but that would be “disruptive” for the user experience. I am still trying to find a solution.