ListGrid.exportData and window unload

[dczech]

Is there any way to prevent a call to ListGrid.exportData from causing a window.unload event? I see this with IE9 and FireFox 3.6 and detecting it via:

<script type="text/javascript">
        window.onbeforeunload = hullo;
        function hullo() {
                var url = window.location.href;
                window.alert(url);
        }
</script>

Which is on the same html page as my Smart GWT application is. (I'm also seeing this when I open up the Developer Console too). The reason I'm asking is I have a use case in which I need to detect if my application's web page is unloaded and was hoping to do so via window.onbeforeunload. But, maybe there is a better way?

This is with SC_SNAPSHOT-2011-05-17/PowerEdition. Thanks.

[Isomorphic]

Unfortunately, no, not that we've found. We use a pattern of setting a flag to ignore the next unload event when we know we're going to cause one.