diff -r f514d4db22db fancybox.module
--- a/fancybox.module	Mon Sep 12 14:59:49 2011 -0400
+++ b/fancybox.module	Mon Sep 12 15:01:02 2011 -0400
@@ -39,6 +39,9 @@
     drupal_add_css($path .  $files['css']);
     drupal_add_js($path . $files['js']);
 
+	// prep settings for exposure (by removing empty options)
+	$settings['options'] = array_filter($settings['options'], 'strlen');
+
     // Expose settings to the DOM.
     $exposed_settings['options'] = $settings['options'];
     $exposed_settings['selector'] = $settings['activation']['selector'];