Mechanism already exists 
sub not500 { my($response, $ua, $handler) = @_; ... }
$ua->add_handler("response_done", \&not500 );

[download]

In reply to Re^2: LWP::UserAgent Client-Warning 500 against HTTP standards? -- LWP::UserAgent issue 508 by Anonymous Monk
in thread LWP::UserAgent Client-Warning 500 against HTTP standards? by Discipulus

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