利用iframe实现下载时不跳转

iframeDownload.js

/**
 * @param {String} downloadUri
 * @param {Boolean} useIFrame
 */ 
function startDownloading(downloadUri, useIFrame) { 
    if (!downloadUri || !downloadUri.length) { 
        return; 
    } 
    
    if (useIFrame === void 0) {
        useIFrame = true;
    }
    
    if (!useIFrame) { 
        window.location.href = downloadUri; 
    } else { 
        var frame = $("<iframe />"); 
        frame.appendTo($("body")).attr({ "src": downloadUri, "display": "none" }); 
        setTimeout(function () { 
            frame.remove(); 
        }, 600000); 
    } 
}