The answer is yes. My actual code is pretty similar to yours.

sub build_redirect
{       
  my ($self, $form, $script) = @_;
    
  $form ||= {};                                                       
+          
  my $q = $self->query;
  my $uri = URI->new( $script || $q->script_name );                   
+          
  $uri->query_form(%$form);                                           
+          
        
  return $uri->as_string;
}       
        
sub redirect
{       
  my $self = shift;                                                   
+          
    
  $self->header_add( -uri => $self->build_redirect( @_ ) );           
+          
  $self->header_type('redirect');                                     
+          
}
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