html2canvas Uncaught (in promise) undefined

Question

I have a html tag canvas.

I can draw on it successfully, and it looks really good, as i wanted to

Answer 1

Tested Chrome, Firefox ok, IE 11 needs adding 2 extra js library to support promise.

function takeSnapShot() {
	html2canvas(document.querySelector("#capture")).then(function(canvas9) {
		var theimage9 = canvas9.toDataURL("image/png");
		document.querySelector("#theimage9").src = theimage9; 
	});
}

 


    
Hello world!