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From Geert Mak <>
Subject [users@httpd] PDF app.launchURL and browser cache
Date Wed, 31 Aug 2011 21:57:33 GMT
Hello list,

We have a web applications which opens a PDF and the PDF does app.launchURL back to the web

The strange thing is that in between 50 and 80% of the cases and sometimes in all cases, after
this redirect the browser, instead of showing the page, outputs HTML code -

<html>	<head>

and so on, until the end, followed by something which looks like headers and then some monkey
stuff -

HTTP/1.1 302 Found
Date: Wed, 31 Aug 2011 20:33:51 GMT
Server: Apache/2.2.9 (Debian) PHP/5.2.6-1+lenny13 with Suhosin-Patch mod_python/3.3.1 Python/2.5.2
mod_perl/2.0.4 Perl/v5.10.0
X-Powered-By: PHP/5.2.6-1+lenny13
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Location: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 2404
Keep-Alive: timeout=15, max=84
Connection: Keep-Alive
Content-Type: text/html

‹������µZmWÛ8þ¿BëîN’±ZZ’t(C_¶´p »ÝùÄ‘mű.... (this
continues for about 20 lines)

If in this moment I refresh the browser (F5 for IE/FF on Windows), the page loads normally.

I monitored what happens with Firebug for Firefox and in the cases when this happens, there
is no communication with the web server (Apache 2.2). Even a die() on top level in the index.php
is not called.

The server is a more or less standard Apache 2.2/PHP 5.2 on Debian 5 without anything special.

Can somebody give us a hint in which direction to search?

Thank you and all the best,
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