npm install svgdecanvo
var svgString = `<svg height="400" version="1.1" width="600" xmlns="http://www.w3.org/2000/svg" id="raphael-paper-0" style="overflow: hidden; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); user-select: none; cursor: default; vertical-align: middle; left: 10px; top: 10px;">
<desc></desc>
<defs></defs>
<rect x="0" y="0" width="500" height="200" rx="0" ry="0" fill="#ff0000" stroke="#000000" style="fill: rgb(255, 0, 0); stroke: rgb(0, 0, 0);"></rect>
<text x="10" y="20" fill="#ffffff" text-anchor="left" stroke="none" style="fill: rgb(255, 255, 255); stroke: none;">
<tspan dy="11" x="10">
Use index.html as a template to work on temporary workspace!
</tspan>
<tspan dy="12" x="10" xml:space="preserve"></tspan>
<tspan dy="12" x="10">
Ensure that your test files are named spec-<somename>.html</tspan>
</text>
</svg>
`,
canvasEle = document.createElement('canvas');
SVG = new SvgDeCanvo(svgString, canvasEle, function (canvas) {
});