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Visualforce Force Charting bug in IE10


I've come across what appears to be a couple of system bugs when using Visualforce Charting in IE10.  There is already a known bug whereby clicking on a dataseries in the legend causes the colour series to be lost (see here but my issue is much greater.


I have a chart which contains two bar charts and a line chart, all within one chart.  In IE10:



when a user clicks on a bar dataseries in the legend, that bar series is correctly removed from the chart, at this point (apart from the colour bug) everything is fine.  However, clicking on it again to make it reappear causes a problem - when the chart is re-drawn, the second bar series is redrawn in a completely opaque colour instead of being correctly filled.



Worse still, clicking on both bar series in order to hide them both and only display the line, causes them to be removed completely!  Clicking either series to make them reappear does not add them back into the chart.  Strangely, the data is still there in the background because when you hover the mouse over where the bars should be, the tooltips still appear, but the bars are not drawn at all.


I've sent a ticket in for this but the support person suggested I post this on here and hope that a salesforce developer see it (what a fantastic method of supporting your users!!)


I have some images which show these bugs in action and you can view them here:


So here's hoping a dev sees this!