I am using mailto function my requirement is like to embed image inside mail body
$scope.generateMail = function () {
var graph = document.getElementById('thumb_graphs_grp');
html2canvas(graph).then(function(canvas) {
var dataURL = canvas.toDataURL();
var image = new Image();
image.src = canvas.toDataURL("image/png");
var imageHTML = "<img " + "src='" + image.src + "' img/>";
var link = "mailto:mail@example.org?subject=Mail request&body="+ imageHTML;
window.location.href = link;
});