Show image below canvas created by canvg - html

Question

i have created one canvas by using canvg plugin.
Then i want to put another background image below canvas using ctx.drawimage() [created by canvg].
I tried .
Please suggest.
var svgString = new XMLSerializer().serializeToString(document.querySelector('svg'));
var canvas = document.getElementById("canvas");
var DOMURL = self.URL || self.webkitURL || self;
ctx = canvas.getContext("2d");
canvg(canvas, svgString, { ignoreMouse: true, ignoreAnimation: true});
var img1 = new Image();
img1.onload = function() {
ctx.drawImage(img1, 136, 136);
var png = canvas.toDataURL("image/png");
document.querySelector('#chart').innerHTML = '<img src="'+png+'"/>';
DOMURL.revokeObjectURL(png);
};
img1.src= "chart.png";

Answer 1

This is working. Used ctx.drawSvg(svgString,0,0,500,500); instead of drawImage
var svgString = new XMLSerializer().serializeToString(document.querySelector('svg'));
var canvas = document.getElementById("canvas");
var DOMURL = self.URL || self.webkitURL || self;
var ctx = canvas.getContext("2d");
var DOMURL = self.URL || self.webkitURL || self;
var img = new Image();
//var svg = new Blob([svgString], {type: "image/svg+xml;charset=utf-8"});
var svg = new Blob([svgString], {type: "image/svg+xml"});
var url = DOMURL.createObjectURL(svg);
var png = '';
var img1 = new Image();
img1.onload = function(){
ctx.drawImage(img1, 136, 136);
ctx.drawSvg(svgString,0,0,500,500);
var png = canvas.toDataURL("image/png");
document.querySelector('#chart').innerHTML = '<img src="'+png+'"/>';
DOMURL.revokeObjectURL(png);
};
img1.src = 'chart.png';