Filedownload.save is not working in chrome

Thanks for your replies and here is what you have requested for,

Zk version: 7.0.3 Chrome version: Version 45.0.2454.101 m (64-bit)

Sample code:

this is the code from controller class, if (feeds != null) { //TEMR-189 //if(feeds.size() != 0){ Span sp = new Span(); final Image img = new Image(); img.setSrc(IconUtil.getIconPath("download-icon.png", null, "temr")); img.setStyle("cursor:pointer; padding-left:180px"); img.setParent(sp); img.setTooltiptext("download previous feedback and student reflection"); previousFeedbackVlayout.appendChild(sp);

                img.addEventListener(Events.ON_CLICK, new EventListener() {

                    @Override
                    public void onEvent(final Event event) throws Exception {
                        String studentName = service.getUser(((Person) (studentListbox.getSelectedItem().getValue())).getPersonId()).getUsername();
                        String practiceName = ((Practice) (practiceListbox.getSelectedItem().getValue())).getPracticeName();
                        String lessonName = ((Lesson) (lessonListbox.getSelectedItem().getValue())).getLessonName();
                        List<StudentReflection> reflections = studentService.getStudentReflection(s.getPersonId(), l.getLessonId());
                        TEMRUtil.pdfExport(studentName, practiceName, lessonName,  currentUser.getUsername(),  feeds, reflections);
                    }
                }); 
            //}

and this is the pdfExport method,

public static void pdfExport(String studentName, String practiceName, String lessonName, String currentUserName, List<studentreflectionfeedback> feeds, List<studentreflection> reflections ) throws IOException {

    //name of the file to be downloaded    
    String fileName = "studentReflectionNoteSummary" + "_" + studentName+ "_" +
            df.format(new Date())+ ".pdf" ; 
    //creates a temporary file in memory
    File temp = File.createTempFile("SRNFeedbackSummary", ".pdf");

    Document document = new Document();
    FileInputStream fileInputStream = null;
    try {

        PdfWriter.getInstance(document, new FileOutputStream( temp));
        document.open();

        //actual content of the file is constructed here
        document = addContent(document, studentName, practiceName, lessonName,   currentUserName, feeds, reflections );               
        document.close();                     

        //load the file
        //File file = new File(temp.getAbsolutePath()); 

        fileInputStream = new FileInputStream(temp.getAbsolutePath());


        temp.deleteOnExit();
        //zk filedownload
        Filedownload.save(fileInputStream, "application/pdf", fileName);


    } catch (Exception e) {            
        log.error("Error generating pdf ", e);
    }/*finally{
        fileInputStream.close();
    }*/


}

I don't see any errors either in the logs or on the ui. I just see some flickering effect on ui with vertical scroll bar added to the page. (looks like as if it is downloading but actual download is not happening)

Also, this is the html source code i have noticed on chrome debug mode,

not sure why zk7 version is appending two more extra attributes (zxsrc and zxurl) in the html code. I am guessing that would be the problem. and can you pls tell me the purpose of those two attibutes?

zk7 version:

<iframe src="/tEMR/zkau/view/z_ifo/dwnmed-0/058/studentReflectionNoteSummary_STUDENT1_12-Oct-2015%2007:10.pdf" id="zk_download" name="zk_download" style="visibility:hidden;width:0;height:0;border:0" frameborder="0" z_xsrc="http://localhost:8080/tEMR/zkau/view/z_ifo/dwnmed-0/058/studentReflectionNoteSummary_STUDENT1_12-Oct-2015%2007:10.pdf" z_xurl="/tEMR/zkau/web/org/regenstrief/framework/ui/security/temr-login.zul"></iframe>

zk5 version:

<iframe src="/tEMR/zkau/view/z_fb5/dwnmed-0/egn1/studentReflectionNoteSummary_STUDENT1_12-Oct-2015%2007:10.pdf" id="zk_download" name="zk_download" style="visibility:hidden;width:0;height:0;border:0" frameborder="0"></iframe>

Hi Darksu,

Tried below code and no luck. Noticed the same behavior,

try{ File file = new File(temp.getAbsolutePath()); Filedownload.save(file, null); } catch (Exception e) {
log.error("Error generating pdf ", e); }