+ /* return_to completes the round trip */
+ StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.return_to="), 0);
+ StrBufUrlescAppend(RedirectUrl, return_to, NULL);
+
+ /* Attribute Exchange
+ * See:
+ * http://openid.net/specs/openid-attribute-exchange-1_0.html
+ * http://code.google.com/apis/accounts/docs/OpenID.html#endpoint
+ * http://test-id.net/OP/AXFetch.aspx
+ */
+