/**
* We are just starting the upload process. Record where we came from, so if they hit "cancel" we
* know where to send them. If we have problems, just clear it.
*/
private void captureReferringUrl(VitroRequest vreq) {
String referrer = vreq.getHeader("Referer");
if (referrer == null) {
vreq.getSession().removeAttribute(ATTRIBUTE_REFERRING_PAGE);
} else {
vreq.getSession().setAttribute(ATTRIBUTE_REFERRING_PAGE, referrer);
}
}
