Here's some more input from our team, regarding the problem

"We've confirmed its defintely the "charset=ISO-8859-1" appended to the Content-Type header that is causing the problem in IE. [I'm not saying IE shouldn't work with this, but we don't have a choice but to support it.....] We wrote a stand-alone servlet that works fine downloading a pdf if we leave off the charset. When we add the charset to the header, it breaks. It looks like when Tomcat is compiling our JSP code, its adding the charset into the response based on what we see in the intermediate Java code the Jasper compiler is producing.

---> Does anyone know how to override this on Tomcat 4.0.6 specifically?

FYI: We read that this was a known issue in another forum, and some version of Tomcat 4.1 might be changed to leave this off. However, we experimented with Tomcat 4.0.6/JDK 1.3.1, Tomcat 4.1.31/JDK 1.4.2, and Tomcat 5.5.4/JDK 1.5.0, and all these combinations add the charset to the response."


Meantime we are checking on the mis-spelled attachment for Content-Disposition part of the header dump we sent earlier.





David Wall wrote:

Have you tried using links like the following:

http://yourhost.com/webappcontext/download.jsp/Germany.pdf

The idea is that tomcat will find the JSP download.jsp and execute it, and
since the link ends with the file name, some browsers will better detect the
pdf reader launch.

If you need some params passed in, your link would look like:

http://yourhost.com/webappcontext/download.jsp/Germany.pdf?abc=xyz&xyz=abc

I don't know if your headers have a typo in your email or in production, but
you have an invalid Content-Disposition header (misspelled "attachment" as
"attachement") which would be a problem, too.

David

----- Original Message ----- From: "Aman Raheja" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <[EMAIL PROTECTED]>
Sent: Thursday, November 18, 2004 8:47 AM
Subject: Re: Problem displaying PDF in IE6 from Tomcat using the ActiveX R
eader Plug-in





Some more info to respond to the earlier responses

1) We're seeing more evidence this is a problem with Reader 6.0.1 (or
the 6.0.2 patch).  We have a PC with Reader 6.0.0 that works Ok, as well
as a PC with 5.0.  Our company has done a mass upgrade to Reader 6.0.1
and IE 6.0.2, so these PCs are not the norm.
2) No SSL is being used at this point (but it will eventually).
3) No compression (that I know of -- unless Tomcat is doing it for us).
4) Our JSP is supposed to be a generic file downloader, handling Word,
Excel, PDF, etc.   Hence the URL ends in ".jsp" vs. the real file
extension.
5) Here's a typical response we're getting in IE:

HTTP/1.0 200 OK
Date: Wed, 17 Nov 2004 20:33:26 GMT
Server: Apache Tomcat/4.0.6 (HTTP/1.1 Connector)
Content-Type: application/pdf;charset=ISO-8859-1
Content-Length: 156483
Content-disposition: attachement; filename="Germany.pdf"
expires: Thu, 01 Jan 1970 00:00:00 GMT
Connection: close


Thanks, Aman Raheja



Phillip Qin wrote:



Where do you generate the pdf? In servlet? The link has to be end with


.pdf


(but before any query string) in order for acrobat reader active-x to


kick


in.

-----Original Message-----
From: Aman Raheja [mailto:[EMAIL PROTECTED]
Sent: November 16, 2004 9:27 AM
To: Tomcat Users List
Subject: Re: Problem displaying PDF in IE6 from Tomcat using the ActiveX


R


eader Plug-in


We did set the Security level to low on IE. More suggestions? Thanks Aman Raheja

Phillip Qin wrote:





There are security and privacy settings in IE affect PDF generation.
BTW, ensurethe link before query string ends with .pdf

-----Original Message-----
From: Aman Raheja [mailto:[EMAIL PROTECTED]
Sent: November 15, 2004 1:40 PM
To: [EMAIL PROTECTED]
Subject: Problem displaying PDF in IE6 from Tomcat using the ActiveX


Reader


Plug-in


Problem:

When we try to display a dynamically generated PDF file, IE launches
the
Adobe Acrobat Reader Plugin, but then just a blank page is displayed and
the IE status says "Done".  No error message is displayed.  No error is
generated in the System Event logs.

The issue seems to be that every request to request to Tomcat for the
PDF send back the request with "charset=ISO-8859-1" in the
"Content-type" Header. We want to figure out a way to verify that this
is the issue. One way might be to somehow get Tomcat to not append the
Character Set in the header. Is there a way to do this?

Environment:

- Client: Windows XP or Windows 2000
- Server: Tomcat 4.0.6/JDK 1.3.1 running on Solaris and Windows XP
(problem exists on both)
- Adobe Reader 6.0.1 (occurs with 6.0.2 patch as well)
- IE 6.0.2800


Additional Information:

1) Our URLs are formed like this:

http://app.ourserver.com/appname/docViewAGN.jsp?RepoType=C&ID=18698&Doc
Name=
Germany&entry=&DocType=pdf&category=Research

2) Our app is issuing GETs, not POSTs.

3) This is happening on multiple PCs.  One thing we noticed is this may
be somewhat Reader version dependent -- we have a few machines left with
Reader 5 installed, and they do not seem to have the problem.

4) When the problem occurs, if you then launch Reader manually, the
document that didn't display in the IE window is automatically displayed
in the full client Reader app.!!!

5) If we set Reader to not open up PDFs in browser windows, the Reader
window launches and opens the PDF file just fine.   [This is a client
solution, and not practical to implement across hundreds of PCs
unfortunately.]

6) We actually have one PC with Windows XP, Reader 6.0.1, and IE 6.0.2
that works.  Could this problem be caused by some specific Windows or IE
patch?

7) We've scoured the forums and tried several things including setting
all security levels to Low in IE, adding a dummy parm at the end of the
URL to fool IE into launching the PDF correctly (e.g. &dummy=file.pdf),
and various header settings to force caching on to 30 seconds, etc.
None of this had any effect.

8) Also, we saw some references to problems caused by Tomcat 4.0.6
adding "charset=ISO-8859-1" to the Content-Type header in the response.
How can we override this to see if that's the problem?

Thanks
Aman Raheja


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