Newline problem

Hello all,

Recently I have started writing some small package apps. The main app
I'm working on at the moment is Camping/Photos[1].  Here I use
a controller to serve static files (Theme[3]) that I have copied from [2].
There seems a problem however, when using this via lighttpd.  All files
that get served (via photos-dispatch.rb) get an extra '\r\n' in front. 
This means that PNG and JPEG files break.  I tried serving an empty file
(0B) and got served a file of 2 bytes containing '\r\n'.  Since I use
the X-Sendfile header I kind of assumed it is in the hands of lighttp. 
However, I have had this working and the only things I have changed are
in the app and not in lighttpd, maybe there are some subtleties I am
missing.  Can anyone help me finding the bug?

Kind regards,
Paul

1: https://trac.luon.net/camping-photos/
2: http://code.whytheluckystiff.net/camping/wiki/ServingStaticFiles
3: https://trac.luon.net/camping-photos/file/trunk/photos/controllers.rb

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