I decided to give linking my Facebook account to my OpenID delegate page another go last night.
Lo and behold, it still didn't work. But this time, I got a useful error message!
After some Googling and reading, I finally figured out that I needed to add the following two lines to the source of my delegate page. Now I have a delegate page that works with OpenID 1.1 and OpenID 2.0.
Once I got that, I was able to link Facebook to my MyOpenID account. The weird logging in and out issues I reported a couple of weeks ago also seem to be resolved.
<html> <head> <!-- OpenID 2.0 delegate information --> <link rel="openid2.provider" href="https://www.myopenid.com/server" /> <link rel="openid2.local_id" href="https://yourusername.myopenid.com/" /> <!-- OpenID 1.1 delegate information --> <link rel="openid.server" href="https://www.myopenid.com/server" /> <link rel="openid.delegate" href="https://yourusername.myopenid.com/" /> </head> <body> </body></html>