jQuery Ajax 下载 Blob 文件的解决方案

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>blob demo</title>
</head>
<body>
<img id="img" src="" />
<script src="https://cdn.bootcss.com/jquery/2.2.1/jquery.js" charset="utf-8"></script>
<script src="jquery-ajax-blob-arraybuffer.js"></script>
<script type="text/javascript">
$.ajax({
url: "./face.jpg",
type: "get",
dataType: "blob", //扩展出了blob类型
}).done(function(data, status, jqXHR){
var reader = new window.FileReader();
reader.readAsDataURL(data);
reader.onloadend = function() {
document.getElementById("img").src=reader.result;
}
}).fail(function(jqXHR, textStatus) {
console.warn(textStatus);
});
</script>
</body>
</html>