[TYPO3] Strange page source probllem

[Darko Jr. Gonzalez]

>in ts i have:
>config.doctype = xhtml_trans
>config.xmlprologue = <?xml version="1.0" encoding="utf-8"?>

Why dont you use?
config {
	disableAllHeaderCode = 1
	additionalHeaders = Content-type:application/xml
	xhtml_cleaning = 0
}

This is from tt_news.

You can try pade header deletion/reset with page.headerData > and then
setting the header again for that page.
[globalVar = GP:type = 100]
page.headerData >
....
[global]