Problem with use of ModPerl2::Tools::fetch_url

Hello,

I am facing a problem with ModPerl2::Tools::fetch_url(). Though my url
passed to the function is valid, it returns empty content. Here is the
relevant code snippet -

package MyCompany::Proxy

..... # use statements

sub handler {
    my $r = shift;

    my $url = .... #some logic to get the url from meta-data

    my $content = $r->fetch_url($url);
    $r->print($content);

    return Apache2::Const::OK;
}

1;

In my Apache conf, mod_proxy is loaded and the following directives are
placed -

ProxyRequests On
ProxyVia On

<Location /foo>
 SetHandler modperl
 PerlOptions +GlobalRequest
 PerlResponseHandler MyCompany::Proxy
</Location>

Unable to figure out why the fetch_url fails to work.

Any suggestions to resolve this would be much appreciated?

Regards,
Ashish