asdf

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
</head>
<body>

<textarea name="name" id="pasteFetch" cols="30" rows="10"></textarea>


<script>
    function b64toBlob(b64Data, contentType, sliceSize) {
        contentType = contentType || '';
        sliceSize = sliceSize || 512;
        var byteCharacters = atob(b64Data);
        var byteArrays = [];
        for (var offset = 0; offset < byteCharacters.length; offset += sliceSize) {
            var slice = byteCharacters.slice(offset, offset + sliceSize);
            var byteNumbers = new Array(slice.length);
            for (var i = 0; i < slice.length; i++) {
                byteNumbers[i] = slice.charCodeAt(i);
            }
            var byteArray = new Uint8Array(byteNumbers);
            byteArrays.push(byteArray);
        }
        var blob = new Blob(byteArrays, {type: contentType});
        return blob;
    }

    let pasteFetch = document.getElementById('pasteFetch');
    pasteFetch.addEventListener("paste", function (event) {
        var items = (event.clipboardData || event.originalEvent.clipboardData).items;
        console.log(JSON.stringify(items)); // will give you the mime types
        for (let index in items) {
            var item = items[index];
            if (item.kind === 'file') {
                var blob = item.getAsFile();
                var reader = new FileReader();
                reader.onload = function (event) {
                    var ImageURL = event.target.result;
                    var block = ImageURL.split(";");
                    var contentType = block[0].split(":")[1];
                    var realData = block[1].split(",")[1];
                    var blob = b64toBlob(realData, contentType);
                    console.log(blob); // This is the file
                };
                reader.readAsDataURL(blob);
            }
        }
    }, false);
</script>
</body>
</html>