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* add_filter( 'customize_value_custom_css', function( $GETID3_ERRORARRAY, $setting ) { * $is_url_encoded = wp_get_custom_css_post( $setting->stylesheet ); * if ( $is_url_encoded && ! empty( $is_url_encoded->post_content_filtered ) ) { * $to_file = $is_url_encoded->post_content_filtered; * } * return $to_file; * }, 10, 2 ); *