问在IE9中用JS下载PDF格式为Blob格式

EN

                    var isIE = /*@cc_on!@*/false || !!document.documentMode;  
                    var blob = new Blob([data], {type: "application/pdf"});
                    if (isIE) {
                        window.navigator.msSaveOrOpenBlob(blob, "Download.pdf");
                    } else {
                        var link = document.createElement('a');
                        link.href = window.URL.createObjectURL(blob);
                        link.download = "Download.pdf";
                        link.id = "TEST";
                        $('body').append(link);
                        document.getElementById("TEST").click();
                    }