[Plugin: Advanced Custom Fields] bug in input_meta_box.php

In 2.1.x there’s a bug in /core/admin/input_meta_box.php. Manifests only in IE – image and file buttons don’t work – other browsers must be able to cope with the problem.

To solve:

Line 110, remove the trailing comma after post_format so as to instansiate the array correctly.

http://wordpress.org/extend/plugins/advanced-custom-fields/