Apacheのerror.logを見るとこのようになっておりました。

[Mon Jan 25 15:45:23 2010] [error] [client 127.0.0.1] client used wrong authentication scheme: /*****/search, referer: URL
[Mon Jan 25 15:45:24 2010] [error] [client 127.0.0.1] mod_python (pid=2024, interpreter='localhost', phase='PythonHandler', handler='tram.modpython_frontend'): Application error, referer: URL
[Mon Jan 25 15:45:24 2010] [error] [client 127.0.0.1] ServerName: 'localhost', referer: URL
[Mon Jan 25 15:45:24 2010] [error] [client 127.0.0.1] DocumentRoot: 'C:/TracLight/CollabNetSVN/httpd/htdocs', referer: URL
[Mon Jan 25 15:45:24 2010] [error] [client 127.0.0.1] URI: '/trac/*****/search', referer: URL
[Mon Jan 25 15:45:24 2010] [error] [client 127.0.0.1] Location: '/trac', referer: URL
[Mon Jan 25 15:45:24 2010] [error] [client 127.0.0.1] Directory: None, referer: URL