Corion,
I get an empty string when I print the file content.

my $file_content  = $mech->get($foo);
print $file_content;
[download]

Here is the result returned by the Data::Dumper

$VAR1 = bless( {
                 '_headers' => bless( {
                                        '::std_case' => {
                                                          'x-frame-opt
+ions' => 'X-Frame-Options',
                                                          'expect-ct' 
+=> 'Expect-CT',
                                                          'content-sec
+urity-policy' => 'Content-Security-Policy',
                                                          'x-xss-prote
+ction' => 'X-XSS-Protection',
                                                          'x-content-t
+ype-options' => 'X-Content-Type-Options',
                                                          'strict-tran
+sport-security' => 'Strict-Transport-Security',
                                                          'referrer-po
+licy' => 'Referrer-Policy'
                                                        },
                                        'content-security-policy' => '
+default-src \'self\' data: https: \'unsafe-eval\' \'unsafe-inline\'',
                                        'date' => 'Sun, 11 Jul 2021 19
+:46:11 GMT',
                                        'strict-transport-security' =>
+ 'max-age=31536000; includeSubDomains',
                                        'etag' => '"06c81313776d71:0"'
+,
                                        'expect-ct' => 'enforce, max-a
+ge=30, report-uri="https://{$subdomain}.report-uri.com/r/d/ct/enforce
+"',
                                        'x-frame-options' => 'SAMEORIG
+IN',
                                        'server' => '',
                                        'x-content-type-options' => 'n
+osniff',
                                        'x-xss-protection' => '1;mode=
+block',
                                        'accept-ranges' => 'bytes',
                                        'referrer-policy' => 'no-refer
+rer'
                                      }, 'HTTP::Headers' ),
                 '_request' => undef,
                 '_content' => '',
                 '_rc' => 304,
                 '_msg' => 'Not Modified'
               }, 'HTTP::Response' );
[download]

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