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From: Kent Frazier <frazier377@sbcglobal.net>
Message-ID: <b9b90ad5-b636-8d4a-42a8-5994a463a4ec@sbcglobal.net>
Date: Tue, 11 Apr 2017 12:29:06 -0700
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Subject: Re: [users@httpd] Malformed header "Content-Type: text/plain\t" with
 .el file
archived-at: Tue, 11 Apr 2017 19:29:17 -0000

On 4/11/2017 12:15 PM, Hanno Böck wrote:
> Hi,
>
> I am observing a behavior and don't really know how to make sense of
> it. It may very well be that I hit a bug, but I wanted to ask for
> feedback to confirm it.
>
> When I download .el files (EMACS Lisp scripts) on an apache server I
> get a very strange header back:
> "Content-Type: text/plain\t"
>
> Please note the "\t" at the end, which shouldn't be here.
> I can reproduce this on different Gentoo systems, but not on Debian or
> Ubuntu.
>
> To reproduce:
> * Put a .el script in the webroot, e.g. get one from here:
> https://git.savannah.gnu.org/cgit/emacs.git/plain/lisp/abbrev.el
> * Download it with "wget -S [url]" (-S makes wget show all the
>    HTTP headers).
> For testing I have put an example on my server:
> https://files.hboeck.de/abbrev.el
> (the header contains an additional charset=UTF-8, because that's
> configured as default on that server, but it still shows the strange
> "\t")
>
> The "magic" file shipped with httpd contains this, and I think this is
> the source:
> 0	string	;;			text/plain	8bit
>
> I guess somehow the tab past the content type isn't stripped away, but
> instead escaped and left in the header.
>
> Can others confirm this behavior? Ideas how to fix this?
>
I guess you could try replacing the tab in the magic file with a space.


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