Popup not removed following click to external link

From PRODUCT-128 (Identity Broker), it was found that in IE8 that clicking a link outside of a popup (menu popup, not a dialog) would stop the popup from hiding. The link would also not be followed.

A fix in Event Broker would fix Identity Broker as it is a shared component.

Determine whether there is an easy way to have the normal functionality work, otherwise fall back to using the fix from IDB-934.