Bug fixed ZK-2045: Page becomes blank after detaching a modal window having an iframe loaded with PDF in IE 11
http://tracker.zkoss.org/browse/ZK-2045
Bug refixed ZK-2045: Page becomes blank after detaching a modal window having an iframe loaded with PDF in IE 11
http://tracker.zkoss.org/browse/ZK-2045
fine tune
Merge remote-tracking branch 'Noah/B65-ZK-2045' into 6.5