use SOAP::Lite;
print SOAP::Lite
    -> uri('http://www.soaplite.com/Demo')
    -> proxy(
'http://services.soaplite.com/hibye.cgi',
    proxy => ['http' => 'http://invalid/'],
    )
    -> hi()
    -> result;
__END__
500 Can't connect to invalid:80 (Bad hostname 'invalid') at - line 2

##</code><code>##

SOAP::Lite: 0.710.08
LWP: 5.831