I recently installed version 1.3 of the WordPress plug-in in WordPress MU 2.8.4a.
I had one major problem which I hacked to overcome:
When the plug-in redirected to the IDP it constructed target parameters that we "over-escaped". e.g.
%253A is the
%3A with the
% escaped to
I fixed the problem by removing the urlencode from line 243 of shibboleth.php where it is constructing the initiator url:
// $initiator_url = add_query_arg('target', urlencode($target), $initiator_url); $initiator_url = add_query_arg('target', $target, $initiator_url);
Hope this helps,