Refresh you be triggered by the browser.
I was curious about that myself, but it looks like a simple HTML Header attribute:
<meta http-equiv="refresh" content="30">
http://www.w3schools.com/tags/att_meta_http_equiv.asp
I was curious about that myself, but it looks like a simple HTML Header attribute:
<meta http-equiv="refresh" content="30">
http://www.w3schools.com/tags/att_meta_http_equiv.asp