Admin Styles and Scripts not loading due to wrong path #432
Description
As said in title, CSS and JS get the wrong path (absolute file system path) on registration.
<link rel='stylesheet' id='cmb2-styles-css' href='http://developer.dev/home/dev/web/wordpress/wp-content/plugins/cmb2/css/cmb2.min.css?ver=4.2.4' type='text/css' media='all' />
The problem is, that the url function in CMB2_Utils class utilizes cmb2_dir() and so the CMB2_DIR constant which is constructed for for includes.
I replaced the line
$this->url = trailingslashit( apply_filters( 'cmb2_meta_box_url', set_url_scheme( $cmb2_url ), CMB2_VERSION ) );
with
$this->url = plugins_url( '', __FILE__ ) . '/../';
as a workaround.
Please find a better solution.