Using litespeed_optimize_js_excludes to exclude custom JS

I’ve added the following snippet into functions.php, and it doesn’t seem to exclude “woo-auction.js” from being cached. What’s amiss?

// Exclude 'woo-auction.js' from LiteSpeed Cache optimisationonly if LiteSpeed Cache is active
if ( is_plugin_active('litespeed-cache/litespeed-cache.php') ) {
add_filter( 'litespeed_optimize_js_excludes', function( $excludes ) {
$my_custom_excludes = array(
'/wp-content/themes/airi-child/js/woo-auction.js',
);
return array_merge($excludes, $my_custom_excludes);
} );
}

Please advise. Thank you.