Invalid 304 header for RSS under IIS/ISAPI

[toby]

This is not really a WordPress error, but apparently PHP under IIS running as ISAPI doesn't handle the custom 304 header that is sent when requesting RSS feeds.

I am running the latest PHP (4.3.11) for Windows as ISAPI.

The header shows up as:

---

HTTP/1.1 304 Undescribed Server: Microsoft-IIS/5.0 Date: Fri, 13 May 2005 18:59:42 GMT Content-type: text/html X-Powered-By: PHP/4.3.11 Not Modified

---

If I modify the following lines (Lines 144-148 of wp-blog-header.php)

if ( version_compare(phpversion(), '4.3.0', '>=') )

header('Not Modified', TRUE, 304);

else

header('HTTP/1.x 304 Not Modified');

exit;

to this:

if ( version_compare(phpversion(), '4.3.0', '>=') ) header('Not Modified', TRUE, 304); else

header('HTTP/1.x 304 Not Modified');

exit;

It works fine.

See bug #1323

The code mentioned in wp-blog-header.php is no longer present. Therefore I'm going to close this ticket as worksforme.

If you have any additional information, please feel free to reopen this ticket.