svgToImageUsingCavg.js

function getSvgAsImage(svgElem, viewBox) {
  // TODO: add x,y to w,h
  var canvas = document.createElement('canvas')
  canvas.width = viewBox[2]
  canvas.height = viewBox[3]
  var ctx = canvas.getContext('2d')
  ctx.fillStyle = '#fff'
  ctx.fillRect(0, 0, canvas.width, canvas.height)

  var options = {
    // fetch:
    ignoreMouse: true,
    ignoreAnimation: true,
    // ignoreDimensions: true,
    ignoreClear: true,
    scaleWidth: 500,
    // scaleHeight: 400,
  }

  Canvg.fromString(ctx, svgElem.outerHTML, options).render()

  return canvas.toDataURL('image/jpeg', 1)
}