$ua->proxy('http',$res);

The documentation suggests you should call the ->proxy method on the result object to get the URI of the proxy: 

if ($res->proxy) {
    $ua->proxy(http => $res->proxy);
}

[download]

In reply to Re: :Problem with Parsing the Proxy Auto Configure File by Eliya
in thread :Problem with Parsing the Proxy Auto Configure File by codenamemessiah

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