Make chrome display an rss feed (2)

This question is a follow-up on this one: get google chrome to view an rss feed

I copied the source code from this page (hope this is ok for the site-owner):
http://www.petefreitag.com/rss/.
I escaped all quotes and made a php file out of it. The file looks like this:

<?php

header('Content-Type: application/rss+xml');

echo "<?xml version=\"1.0\" ?>
<?xml-stylesheet type=\"text/css\" href=\"http://www.petefreitag.com/rss/simple_style.css\" ?>

<rss version=\"2.0\">
    <channel>
        <title>Pete Freitag's Homepage</title>
        <link>http://www.petefreitag.com/</link>
        <description>Covering ColdFusion, Java, Web Development, and other topics</description>
        <language>en-us</language>
        <lastBuildDate>Fri, 23 Mar 2012 18:57:00 GMT</lastBuildDate>
        <ttl>45</ttl>

        <item>
REST OF THE SOURCE CODE
</rss>
";
?>

Here you can see the result: http://web.student.tuwien.ac.at/~e0250890/rsstest/test.php

However, on http://www.petefreitag.com/rss/ chrome views the page as rss feed, in my example it shows just the source code.

What is the difference and how can I force chrome to view the page as rss feed?

Try changing the header to application/xml

This worked for me by changing the header:

<?php 
header('Content-Type: application/xml');
echo file_get_contents('http://web.student.tuwien.ac.at/~e0250890/rsstest/test.php');
?>

Mozilla accepts a whole range of headers

text/xml,application/xml,application/rss+xml,application/atom+xml

But it seems chrome accepts only text/xml or application/xml

Not 100% sure why, perhaps you should take it up with google ;p

Add doctype.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">

来源：https://stackoverflow.com/questions/10145861/make-chrome-display-an-rss-feed-2