Dansguardian and tinyproxy silently block pages

Binary package hint: dansguardian

When using dansguardian, firehol and tinyproxy with the directions here (http://ubuntuforums.org/showthread.php?t=207008), most pages go through fine while others (malicious websites/inappropriate content) is blocked, with a message returned to the user. However, some pages, such as the BBC links contained on the firefox bookmark bar do not load. They aren't shown as blocked, they do not show up in the access logs as blocked but they do not load, however, their favicon loads fine. This occurs on some other sites too, and a machine on the same network without the filter may load the pages fine. There are no indications in any of the log files that anything was blocked.

Telnet session:

telnet news.bbc.co.uk 80
Trying 212.58.226.138...
Connected to newswww.bbc.net.uk.
Escape character is '^]'.
GET /2/hi/middle_east/8520247.stm HTTP/1.1
Host: news.bbc.co.uk

HTTP/1.1 200 OK
Via: 1.0 tinyproxy (tinyproxy/1.6.5)
Content-Type: text/html
Server: Apache
Cache-Control: max-age=0
Expires: Wed, 17 Feb 2010 20:43:48 GMT
Date: Wed, 17 Feb 2010 20:43:48 GMT
Set-Cookie: BBC-UID=COOKIE;
expires=Thu, 17-Feb-11 20:43:48 GMT; path=/; domain=bbc.co.uk;
Set-Cookie: BBC-UID=COOKIE; expires=Thu, 17-Feb-11 20:43:48 GMT; path=/; domain=bbc.co.uk;
Vary: Host
Accept-Ranges: bytes
Proxy-Connection: Keep-Alive

Connection closed by foreign host.

As you can see, no html was actually transmitted.