mangcut.github.io/test.html at master · mangcut/mangcut.github.io · GitHub

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<!DOCTYPE html>
<html lang="vi" class="no-js">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width">
</head>

<body>
<figure>
<div>
<img class="fake-image" src="data:image/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 614 1120'%2F%3E" width="614" data-src="/media/frequent_wind_plan.svg" />
</div>
</figure>

<script>
(function() {
var loadRealImages = function() {
	var isOperaMini = Object.prototype.toString.call(window.operamini) === "[object OperaMini]";
	alert(isOperaMini);
	var imgTags = document.querySelectorAll(".fake-image");
	for (i = 0; i < imgTags.length; ++i) {
		var tag = imgTags[i];
		var img = new Image();
		img.onload = function() {
			tag.src = this.src;
		}
		var realSrc = tag.getAttribute("data-src");
		if (isOperaMini) realSrc = realSrc.replace(".svg", ".png");
		img.src = realSrc;
	}
}

window.addEventListener('load', function() {
	window.setTimeout(function() {
		loadRealImages();
	}, 0);
}, false);

})();
</script>
</body>
</html>