IE (HTTPS): generating pdf from php file doesn't work - php

Question

Here is my issue. I am trying to call a page: foo.php?docID=bar and return a PDF to the screen which is stored as a BLOB in the DB.
Here is the portion of my code which actually returns the PDF:
$docID = isset($_REQUEST['docID']) ? $_REQUEST['docID'] : null;
if ($docID == null){
die("Document ID was not given.");
}
$results = getDocumentResults($docID);
if (verifyUser($user, $results['ProductId'])){
header('Content-type: application/pdf');
// this is the BLOB data from the results.
print $results[1];
}
else{
die('You are not allowed to view this document.');
}
This works perfectly fine in Firefox.
However, in IE, it doesn't show anything at all. If i'm on another page (i.e. google.com), and I type in the URL to go to this page, it will say it's done, but I will still have google.com on my screen.
I checked the headers for the responses from both firefox and IE. They are identical.
Does anyone have any suggestions? Need more information?
EDIT: If it helps at all, here's the response header and the first line of the content:
HTTP/1.1 200 OK
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Content-Length: 349930
Content-Type: application/pdf
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: PHP/5.1.2
Set-Cookie: PHPSESSID=cql3n3oc13crv3r46h2q04dvq4; path=/; domain=.example.com
Content-Disposition: inline; filename='downloadedFile.pdf'
X-Powered-By: ASP.NET
Date: Tue, 21 Apr 2009 16:35:59 GMT
%PDF-1.4
EDIT: Also, the page which pulls out the pdf file actually uses HTTPS instead of HTTP.
Thanks in advance,
~Zack

Answer 1

I figured out what the issue was. It's an IE bug dealing with IE, HTTPS and addons. (See here)
It was a caching issue. When I set:
header("Cache-Control: max-age=1");
header("Pragma: public");
(see here), the PDF was in cache long enough for the adobe reader add-on to grab it.

Answer 2

I had this issue too, i used the following which seems to work fine
header("Content-type: application/pdf");
header("Content-Length: $length");
header("Content-Disposition: inline; filename='$filename'");

Answer 3

Try this:
header("Content-Type: application/pdf");
header("Content-Disposition: inline; filename=foo.pdf");
header("Accept-Ranges: bytes");
header("Content-Length: $len");
header("Expires: 0");
header("Cache-Control: private");
Also, if you are using sessions, you can try setting
session_cache_limiter("none");
or
session_cache_limiter("private");

Answer 4

if ( USR_BROWSER_AGENT == 'IE' ) {
header( 'Content-Disposition: inline; filename="' . $name . '"');
header( 'Expires: 0' );
header( 'Cache-Control: must-revalidate, post-check=0, pre-check=0' );
header( 'Pragma: public' );
} else {
header( 'Content-Disposition: attachment; filename="' . $name . '"' );
header( 'Expires: 0' );
header( 'Pragma: no-cache' );
}

Answer 5

This was the only header I needed to change:
header("Pragma: public");

Answer 6

I think you need to add more headers.
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
header("Content-Disposition: attachment; filename=THEFILENAME.pdf;");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . strlen($results[1]));