This problem shows up in LayoutTests/security/block-test.html Bug and fix being worked at http://bugreports.qt.nokia.com/browse/QTBUG-10679
This will be fixed in Qt 4.7.2
This is going to stay broken. The http part is fixed but FTP is not: "We don’t touch the FTP code currently, so it’s broken as it is." http://qt.gitorious.org/qt/qt/merge_requests/632
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