我有这个代码，我正试图加载blob pdf，然而它成功地在一个新的标签页中打开，但我希望这个pdf被加载到syncfusion ejpdfviewer中，有什么建议吗

html

javascript语言

                xhr.open('POST', '/MifosX/Reports/RunReportPDF');
                xhr.setRequestHeader('Content-Type', 'application/json;charset=UTF-8');
                xhr.send(JSON.stringify(reportrequestviewmodel));
                xhr.responseType = "blob";
                xhr.onreadystatechange = function () {
                    let stateCode = 0;
                    console.log("readyState", this.readyState);
                    console.log("status", this.status);
                    if (this.readyState === 4) {
                        this.onreadystatechange = null;
                        if (this.status === 200) {

                            var file = new Blob([xhr.response], { type: 'application/pdf' });
                            var fileURL = URL.createObjectURL(file);
                            window.open(fileURL);
                            console.log(fileURL);

                            $("#iframe").ejPdfViewer({ serviceUrl: fileURL, interactionMode: 1 });

                            console.log(xhr.response);
                        } else {
                            alert(this.statusText);
                            stateCode = -1;
                        }
                    }
                    return stateCode;```