Is it possible to set 'with_front' to false?

For CPT, you can use a hook:

add_filter( 'wck_cptc_register_post_type_args', 'my_register_without_front', 10, 2 );
function my_register_without_front( $args, $post_type ) {
  if ( 'my-post-type' == $post_type )
    $args['rewrite']['with_front'] = false;
  return $args;
}

What is very poor, I can’t see the way to do this for Custom Taxonomy…

Hi,

I’ve noted this down and we’ll add a filter in register taxonomy as well.

Thanks for letting us know!