How do I serve pages as something other than text/html?

[Jaxel]

I'm using this right now:
http://feedvalidator.org/check.cgi?url=http://www.8wayrun.com/media/rss

<?php

class EWRmedio_ViewPublic_MediaMRSS extends XenForo_ViewPublic_Base
{
	public function renderXml()
	{
		echo $this->_params['xml']->saveXml(); exit;
	}
}

The problem is that this servers the page as "text/html" instead of "application/rss+xml".

Is there something I need to do to fix this?

 

[Jaxel]

Nevermind... figured it out... use renderRss instead of renderXml.