[Plugin: Simple Facebook Connect] Logout issue with patch

Otto,

I noticed an issue with the latest (1.1) when logging out under unusual circumstances.
The scenario:
1) I was logged into my WP site with user “A”. User “A” had been logged in using FB connect.
2) I wanted to test a test FB user, so I went over to FB’s developer site and switched to a test FB user that wasn’t registered for my site.
3) I then attempted to logout of my WP site and got an FB js error (FB.logout() called without an access token.)

I know this is a strange situation that may not happen in real life, but I found that if you check for FB.getAuthResponse() before FB.logout, it avoids this issue. Anyway, if its useful, here’s the patch from my fix:

Index: sfc-login.php
===================================================================
--- sfc-login.php       (revision 444964)
+++ sfc-login.php       (working copy)
@@ -196,9 +196,13 @@
 function sfc_login_logout_js() {
        $redirect_to = !empty( $_REQUEST['redirect_to'] ) ? $_REQUEST['redirect_to'] : 'wp-login.php?loggedout=true';
 ?>
+if (FB.getAuthResponse()) {
 FB.logout(function(response) {
        window.location.href = '<?php echo $redirect_to; ?>';
 });
+} else {
+       window.location.href = '<?php echo $redirect_to; ?>';
+}
 <?php
 }

http://wordpress.org/extend/plugins/simple-facebook-connect/