title: How do you safely convert an Ext JS 4 Chart to an image?
body: <p>Just wondering if anyone knows how you would obtain an image from an Ext JS Chart in a secure manner?</p>
  
  <p>I noticed that the Ext JS 4.1 preview has a "save" method that allows you to get a .png image from a chart but looking at the source code it seems to just sends the definition of the svg/vml from your chart to a Sencha server which is not secure enough for what I need.</p>