Wrong usage of “admin_body_class” filter.

Hi Guys,

You have the wrong usage of admin_body_class filter, and you broke all plugin, which tries to use this filter to add some CSS class to the body tag.

This file:

wp-content/wp-content/plugins/wp-seopress/seopress.php

have add_filter definition:

227 add_filter( 'admin_body_class', 'seopress_admin_body_class' );
228 function seopress_admin_body_class( $classes ) {                                                                   
229     if ((isset($_GET['page']) && ($_GET['page'] == 'seopress-option'))
[...]
239     || (isset($_GET['page']) && ($_GET['page'] == 'seopress-license'))) {
240         $classes .= " seopress-styles ";
241         return $classes;
242     }
243 }

And the issue is:

add_filter function must have at least one param and MUST return this param. In this situation, the current admin body class become null.

Please move line 241 outisde the ‘}’:

239 || (isset($_GET[‘page’]) && ($_GET[‘page’] == ‘seopress-license’))) {
240 $classes .= ” seopress-styles “;
241 }
242 return $classes;
243 }

Thank you in advance!

Marcin