I'm trying to send XML to a payment server, in order to keep processing in a central location. Anyway, I'm generating the XML with XML::Simple and sending with LWP::UserAgent. The XML looks fine(it is below), but I'm getting the following response 500 - Too many header lines (limit is 128), but I'm not sending any additional headers. 
<?xml version="1.0"?>
<PaymentRequest>
  <PAY_CC_NUMBER>xxxxxxxxxxxx1234</PAY_CC_NUMBER>
  <PAY_OID>Test_ID</PAY_OID>
  <PAY_EMAIL></PAY_EMAIL>
  <PAY_CC_EXPIRE>1203</PAY_CC_EXPIRE>
  <PAY_PROCESSOR>Processor</PAY_PROCESSOR>
  <PAY_ZIP>12345</PAY_ZIP>
  <PAY_CC_TYPE>Visa</PAY_CC_TYPE>
  <PAY_MERCHANT>test2</PAY_MERCHANT>
  <PAY_FULL_NAME>Test Customer</PAY_FULL_NAME>
  <PAY_AMOUNT>1.00</PAY_AMOUNT>
  <PAY_CITY>City</PAY_CITY>
  <PAY_ADDR>123 Test st #293 </PAY_ADDR>
  <PAY_FUNCTION>Authorize</PAY_FUNCTION>
  <PAY_STATE>PA</PAY_STATE>
  <PAY_CVV2>111</PAY_CVV2>
  <PAY_COUNTRY>US</PAY_COUNTRY>
  <PAY_SCRIPT>test.cgi</PAY_SCRIPT>
</PaymentRequest>

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Here is the Perl code: 

use strict;
use warnings;

use XML::Simple;
use LWP::UserAgent;

my $data = ##XML Data from external source.
my $xml;
eval {
  $xml = XMLout($data, rootname => 'PaymentRequest',
                xmldecl => '<?xml version="1.0"?>',
                noattr => 1);
};
if ($@) {
  ##Error Handling
}

my $ua = new LWP::UserAgent;
my $req = new HTTP::Request('POST', "http://$server/pay.cgi");
$req->content_type('text/xml');
$res = $ua->simple_request($req);
if (! $res->is_success) {
  ##Error Handling
}

[download]

In reply to Problems sending XML to webserver by tcf22

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