page size not available in IE or mozilla

what causes this?

[amznVibe]

On a site I developed I noticed that one of the pages I have refuses to return a page size via properties in IE or Mozilla (says "Not Available"). I can't seem to find an answer to this (Googled to death). Can anyone explain this? My guess is an unclosed tag, but in theory the parsers in these browsers are pretty smart and should catch/fix that...

[Nick_W]

Does it contain POST data?

Nick

[amznVibe]

Nope no post data. I suspect its an improperly done redirect that either the server or the browser is interpreting wrong, but still able to display the page somehow. It's very consistant though, good for testing. It disables the "view source" option as well and we know how many people request that around here :) so I'll consider it a feature (lol, I know that can be defeated easily)

[takagi]

Is it a dynamic page or a static page?

Can you see the "Content-Length:" line at the Server Header Check [webmasterworld.com]?

[amznVibe]

No content length via the header check. Also I am using mod_gzip.
The pages are static (well some minor php but they are physical html files)
Every other page seems to have page size but this one.

Server Header Check
HTTP/1.1 302 Found
Date: Sat, 27 Sep 2003 15:52:39 GMT
Server: Apache/1.3.28 (Unix) mod_auth_passthrough/1.8 mod_gzip/1.3.26.1a mod_log_bytes/1.2 mod_bwlimited/1.0 PHP/4.3.2 FrontPage/5.0.2.2634 mod_ssl/2.8.15 OpenSSL/0.9.6b
Location: [www....] (my domain removed).org/news
Connection: close
Content-Type: text/html; charset=iso-8859-1