window.tsaDownload = {
    /**
     * Triggers a browser file download from a base64 payload.
     */
    fromBase64: function (filename, contentType, base64) {
        var binary = atob(base64);
        var bytes = new Uint8Array(binary.length);
        for (var i = 0; i < binary.length; i++)
            bytes[i] = binary.charCodeAt(i);

        var blob = new Blob([bytes], { type: contentType });
        var url = URL.createObjectURL(blob);
        var link = document.createElement('a');
        link.href = url;
        link.download = filename;
        document.body.appendChild(link);
        link.click();
        link.remove();
        URL.revokeObjectURL(url);
    }
};