add favicon.ico data.

functions.php

@@ -140,14 +140,15 @@ function cbsonline_shortcode_TopBox($atts, $content = null)
 }
 add_shortcode('topbox', 'cbsonline_shortcode_TopBox');
 
-// allow illustrator file upload
-function cbsonline_allow_upload_ai($mimes)
+// allow additional image file upload
+add_filter('upload_mimes', 'cbsonline_allow_additional_image_upload');
+function cbsonline_allow_additional_image_upload($mimes)
 {
     $mimes['ai'] = 'image/x-illustrator';
+    $mimes['ico'] = 'image/vnd.microsoft.icon';
 
     return $mimes;
 }
-add_filter('upload_mimes', 'cbsonline_allow_upload_ai');
 
 // force override Archive widget arguments
 add_filter('widget_archives_args', 'cbsonline_widget_archives_args');