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From Uli Mayring <u...@denic.de>
Subject Re: [C2] Possible Solution for PDF Bug with IE 5.x !??
Date Wed, 04 Jul 2001 21:45:49 GMT
On Wed, 4 Jul 2001, Stefan Seifert wrote:

> Hello (especially Ulrich...).
> 
> I've took a close look at the Problem with wrong displayed PDFs in IE
> 5.x. generatet by Coccon-FOP. I had no explanation why it did not work
> generatet from cocoon directly, but worked perfectly when the same
> stream saved as a file was served from the file system.

IE does some checks, when it receives something over the web and possibly 
even alters the data. See http://ulim.cocoonhost.com/iebug for an example,
where it even alters the data.

Recently I posted an URL to a page, that explains some of these checks 
performed by IE. The bottom-line is: IE does weird stuff and doesn't
comply to the HTTP standard. No user, especially not users of OpenSource
software, should support this software. You are undermining the OpenSource
and standards efforts, if you use this browser or develop for customers
using this browser.

That being said, there are two currently known workarounds, both posted to
the list recently (setting a content-disposition header or configuring
Acrobat as external application). Perhaps you have discovered a third
workaround. But it is not ok to use these workarounds, instead we all
should discourage people from using IE by *NOT* supporting its bugs. We
are talking about intentional bugs here, introduced to undermine the
OpenSource and standards movement.

Plus, it's happened three or four times before: every time we find a
workaround, Microsoft will change IE in the next version to not support
this workaround anymore. Then we have to find a new workaround, which will
work until the next version - but the users of the older versions of IE
will not be supported anymore. We are not helping users if we go into a
coding competition with Microsoft.

Ulrich


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