$mech->submit_form(...) returns an HTTP::Response object (from the docs). It is that object that you need to call response on. Example: 
# ... do stuff ...
my $resp = $mech->submit_form(%params);
print $resp->content if $resp->is_success;

[download]

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It's all fine and dandy until someone has to look at the code.

In reply to Re: $mech->content() returns empty by kwaping
in thread $mech->content() returns empty by Anonymous Monk

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