[xwiki-users] Create Page button redirected to localhost

Hi, all, I logged in as an administrator, I like to create a new page under jQuery with this URL: http://mydomain/xwikim/bin/create/jQuery/WebHome when I click the Create button, it always redirected me to localhost as following: http://localhost/xwikim/bin/edit/jQuery/jQueryUICustom?template=&parent… which caused error message: Unable to connect, I tried to create from Main space, also the same problem and redirected me to: http://localhost/xwikim/bin/edit/Main/jQueryUICustom?template=&parent=M… when this happens, I have to replace the localhost with mydomain on browser address and press enter to bring up the page, this happened to me many times when I need to do edit action, when it is view action, it works perfectly, I have httpd apache webserver in front of tomcat, in apache config file, my setup is: ProxyPass /xwikim http://localhost:8082/xwikim ProxyPassReverse /xwikim http://localhost:8082/xwikim In tomcat server.xml file, the setup is: <Connector port="*8082*" maxThreads="*150*" minSpareThreads="*25*"maxSpareThreads ="*75*" enableLookups="*false*" acceptCount="*100*" connectionTimeout="* 20000*" proxyPort="*80*" disableUploadTimeout="*true*" /> I feel this setup should be ok, since it works all the time except sometimes it does not work for edit action or login. Does anybody have ideas about what happened and how to fix? Thanks very much in advance. Dave