I want to use this https://github.com/niklasvh/html2canvas but getting error after including its cdn like

<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/0.5.0-beta4/html2canvas.js" type="text/javascript" xml="space"></script>

When I use it like

download : function() {
        html2canvas($("#result-box"), {
          scale: 2,
        onrendered: function(canvas) {

             var a = document.createElement('a');
             a.href = canvas.toDataURL("image/jpg").replace("image/jpg", "image/octet-stream");
             a.download = 'lash-prescription.jpg';


it says

 Uncaught ReferenceError: html2canvas is not defined
    at Object.download (my.js:269)

1 Answer 1


Look like you try to call function from js library when it doesn't loaded. Try to wrap your function in:

jQuery(document).ready(function($) {
  Your function here
  • I tried . but I read some where I need to put some require(['jquery'], function ($) { } like this type of representation ?
    – ephemeral
    Commented Feb 20, 2018 at 10:46

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