The problem is not with the XML header. (Apache doesn't care about what you are sending.) The problem is the non-adherence to the CGI specification, which requires a CGI header to be sent to STDOUT along with the body of the message to send to the HTTP client. Adding the following to your script will solve the problem: 

use CGI;
print CGI->header('text/xml');

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In reply to Re: XML::Generator bad header? by ikegami
in thread XML::Generator bad header? by hallikpapa

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