Snippet to load html2canvas in the actual page

html2canvas.js

this.scriptObject=document.createElement('script');
this.scriptObject.type='text/javascript';
this.scriptObject.src='https://html2canvas.hertzen.com/dist/html2canvas.js';
var ssc = document.getElementsByTagName('script')[0];
ssc.parentNode.insertBefore(this.scriptObject, ssc);

function screenshot(elem)
{
  return html2canvas(elem, {logging: true, profile: true, useCORS: true })
}
function appendScreenshot(elem)
{
  screenshot(elem).then(x => document.body.append(x))
}