[visualization-api] How to save Chart in a chartwrwpper to an image

[Mike Pala]

I have a chart in a google ChartWrapper which is created by the ChartEditor

 function loadEditor() {

    var data = new google.visualization.DataTable(<?=$jsonTableA01?>)
  wrapper = new google.visualization.ChartWrapper({

     dataTable: data,
     left:1,
     options: {
     'chartArea': {width: '60%', left: 45},
     'legend' :'none',

     'title':'Number of Newly Opened Roles per <?echo $_SESSION['Display']?>'
     }

  });


  chartEditor = new google.visualization.ChartEditor();
  google.visualization.events.addListener(chartEditor, 'ok', redrawChart);

  chartEditor.openDialog(wrapper, {});}

I now need another function linked to a button which will save that chart 
to an image file. Canvas2html does not work. It drops all formatting and 
colors, columns are not visible, and the text (labels, legends, values, 
etc) overlaps and is smooshed together.

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