Then, http://search.cpan.org/~gaas/libwww-perl-5.808/lib/LWP/Simple.pm isn't a valid HTTP Proxy address. A HTTP Proxy is basically (sort of) a web server which asks other web servers on behalf of the connecting client, and that's not what you get addressing a single file on the CPAN search server.

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}