Capture an image of a dynamic chart
My requirements:
draw dynamic charts (pie, bars, etc.) from data provided by the user
display a save button that allows the user to save the result as an image
support IE 8
With modern browsers, I can use canvas for the charts, then the convenient
toDataURL method to save the resulting chart as image. But what is the
fallback for browsers like IE 8 that don't support canvas?
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