Hello,
Thanks for all the response.
1) it is slow since the migration of wordpress. I would optimize it after all functions are complete.
2) I did not modify the .htaccess, just put the original one to $http_root/gallery
3) in fact, the Firefox also accepts a 404 header, here is the output from Firefox LiveHttpHeaders:
http://www.kunxi.org/gallery/
GET /gallery/ HTTP/1.1
Host: www.kunxi.org
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0
Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Cookie: GALLERYSID=891ff98e2759bf4593656e695b4162e9; zenphoto_auth=407234eaeae943d91094909ff9e0374a; __utma=27335206.1552615378.1157516470.1162596059.1162601425.145; __utmz=27335206.1162563003.142.4.utmccn=(referral)|utmcsr=planetlarry.org|utmcct=/|utmcmd=referral; dbx-postmeta=grabit=0-,1-,2+,3+,4+,5+,6+&advancedstuff=0-; zenphoto=jjll%7C%7E%2A%7E%7Cb%40bc.omc%7C%7E%2A%7E%7Chttp%3A%2F%2Fkunx.org
HTTP/1.x 404 Not Found
Date: Sun, 12 Nov 2006 18:37:40 GMT
Server: Apache/1.3.29 (Unix) FrontPage/5.0.2.2623
Cache-Control: no-cache, must-revalidate
Expires: Fri, 14 Mar 1980 20:53:00 GMT
Pragma: no-cache
X-Pingback: http://www.kunxi.org/xmlrpc.php
X-Powered-By: PHP/4.3.6
Vary: Host
Last-Modified: Sun, 12 Nov 2006 18:37:42 GMT
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8
----------------------------------------------------------
http://www.kunxi.org/wp-content/plugins/UltimateTagWarrior/ultimate-tag-warrior-ajax-js.php?ajaxurl=http://www.kunxi.org/wp-content/plugins/UltimateTagWarrior/ultimate-tag-warrior-ajax.php
That explains the why, but it arouse another question, why here is a 404 header?