I will start by saying that currently I'm evaluating FusionCharts.
I'm using FusionCharts with GWT (with GWT history mechanism) and it's working (almost) great, except of one and very annoying thing. After the chart(s) are rendered or clicked it changes the window title.
The page URL is "http://<domain>/<params>#1" and The window title is "My Ttitle", after the page is loaded and the chart is rendered the title changes to "MyTitle#1" and if I click on the chart the title changes to "#1".
I tested it with IE8,7,6 and I got the same result with all of them. It doesn't occur in other browsers.