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/* Replace canvas with image snapshot
*/
(function(){
var canvas = document.querySelectorAll ("canvas");
for (var i = 0; i < canvas.length; i++) {
var c = canvas[i];
var data = c.toDataURL ();
var parent = c.parentNode;
var img = document.createElement ('img');
/* copy all attributes */
for (var i = 0; i < c.attributes.length; i++) {
var attr = c.attributes.item(i);
img.setAttribute (attr.nodeName, attr.nodeValue);
}
img.src = data;
parent.replaceChild (img, c);
}
}());
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