If you don't set any of the cache properties in the response header (returned PDF) to no-cache (or expires immediately, or whatever equivalent), IE 5.5 is smart enough to internally return it's own cache on the second hit (at least in my experience).
Matt Savino > -----Original Message----- > From: Katiyar, Bhawana [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, March 05, 2002 7:37 AM > To: [EMAIL PROTECTED] > Subject: RE: FO -> PDF works with Netscape, not with IE > > > I am using IE 5.5 SP2. My request for a PDF document is being > sent twice. > Does anyone has a working servlet which serves PDF requests > in one shot. > > Thanks > Bh > > -----Original Message----- > From: Savino, Matt C [mailto:[EMAIL PROTECTED]] > Sent: Monday, March 04, 2002 5:00 PM > To: '[EMAIL PROTECTED]' > Subject: RE: FO -> PDF works with Netscape, not with IE > > > If you have to support older verisons of IE (<5.5), you'll > also have to take > a couple of steps to avoid calling FOP 2 or 3 times. One > you'll want to look > out for User-Agent='contype' in the request header, and only > return the > content type, not the actual content. But this isn't enough > (even though > Microsoft says it is). IE < 5 likes to request the PDF doc, > then kill the > request, then request the contype, then request the doc again. Except > sometimes, and under no reproduceable set of conditions I > could discern, IE > accepts the whole document on the first request. Which means > you can't just > only call FOP and return the whole doc on the third hit. The only full > solution I've seen so far is to cache the PDF byte-array in > the session > after the first hit, then return it if requested on the third > hit. (credit > Jim Urban I believe) This doesn't save you from sending the > PDF out over the > wire twice, but it does save calling FOP twice. And so far > the latter has > proven to be much more time and resource-consuming. I've attached the > servlet I use to generate HTML and PDF. It's kind of a mess, > but you should > be able to find all the pieces. > > One note: it's possible setting the 'Content-Disposition' as > described below > may clear up the problem. I remember experimenting with > Content-Disposition > a long time ago, but I didn't like the way it brought up two > consecutive > 'Save As...' dialogs. > > Matt Savino > > > > -----Original Message----- > > From: Chetan Vig [mailto:[EMAIL PROTECTED]] > > Sent: Monday, March 04, 2002 1:51 PM > > To: [EMAIL PROTECTED] > > Subject: Re: FO -> PDF works with Netscape, not with IE > > > > > > Make sure you have the following set in your response > > // CONTENT DISPOSITION ENSURES THAT IE > > BROWSER RECOGNIZES > > THE PDF > > // BYTE STREAM AS A PDF FILE > > // SOLUTION FOUND FROM MICROSOFT SUPPORT PAGE > > // NO IMPACT FOR NETSCAPE BROWSER > > response.addHeader("Content-Disposition", > > "inline;filename=report.pdf"); > > response.setContentLength(contentSize); > > > > Chetan > > > > > > Jim Urban wrote: > > > > > Be sure you set the content length, otherwise IE has > > problems. It also > > > helps to call reset to clear any information in the HTTP > > header before > > > setting your content type or any other values. > > > > > > Jim > > > > > > > -----Original Message----- > > > > From: Katiyar, Bhawana [mailto:[EMAIL PROTECTED]] > > > > Sent: Monday, March 04, 2002 3:23 PM > > > > To: [EMAIL PROTECTED] > > > > Subject: FO -> PDF works with Netscape, not with IE > > > > > > > > > > > > Hi! I am using version .18 to render PDF from XML. Rendering is > > > > fine with Netscape, but doesn't work with IE. > > > > Any clues? > > > > Thanks > > > > Bhawana > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > > For additional commands, email: [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, email: [EMAIL PROTECTED] > > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, email: [EMAIL PROTECTED] > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, email: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
