Page Not Responding (Streaming PDF)

Question

I'm not sure if this is related to my code or just the app I'm customizing, but here is the problem.
I'm using FOP (Apache's Formatting Object's Processor) XML Graphics project.
In any case, I'm creating this PDF on the fly and then streaming it back to the client as application/pdf. The PDF opens properly. However, the buttons on the page do not respond once the PDF opens. The page in question is part of a frameset, so when I hit the F5 (Refresh) button, all frames reload and the app responds as expected.
Here is some of the code:
XSLTInputHandler input = new XSLTInputHandler(new InputSource(new ByteArrayInputStream(myXML.getBytes("UTF-8"))), new InputSource(xsltStream));
ByteArrayOutputStream out = new ByteArrayOutputStream();
Logger log = new ConsoleLogger(ConsoleLogger.LEVEL_DEBUG);
MessageHandler.setScreenLogger(log);
Driver driver = new Driver();
driver.setLogger(log);
driver.setRenderer(Driver.RENDER_PDF);
driver.setOutputStream(out);
input.run(driver);
HttpServletResponse response = (HttpServletResponse)getPageContext().getResponse();
response.setContentType("application/pdf");
response.addHeader("Content-Disposition", "attachment; filename=Report.pdf");
byte[] content = out.toByteArray();
response.setContentLength(content.length);
response.getOutputStream().write(content);
response.getOutputStream().flush();
response.getOutputStream().close();Any one has any thoughts on this?

Answer 1

it seems that once I call flush(), I no longer have a page, even though I can see it. I can't even view source for the page. I can, off course, refresh the page, then everything start working again...