The login page : www.modepass.com/join_form_new.php and the return page : www.modepass.com/oid_return.php
This working graet with Google, Facebook and some others... We have follow the Yahoo FAQ (http://developer.yahoo.com/openid/faq.html) and the links provided in some answers but we can't find the solution... If we can have some help
The file returned from http://www.modepass.com/ is beyond our size limit for realm verification. We don't fetch large files to prevent our servers from spending too much time on realm verification thus to reduce the risk of denial of service attack. If you cannot truncate the file or set a different openid.realm that can return a smaller file, then you may consider returning the XRDS document directly if the request has the "Accept: application/xrds+xml,..." header. That signifies that it is not an ordinary request from end user' browser, but a request for XRDS document from the OP.