WooCommerce Ajax Add to Cart facebook pixel event not working - ajax

Question

Add to Cart Facebook pixel event is not being triggered when adding product to cart with Ajax.
Here is my first output in head.
<!-- WooCommerce Facebook Integration Begin -->
<script <?php echo self::get_script_attributes(); ?>>
<?php echo $this->get_pixel_init_code(); ?>
fbq( 'track', 'PageView', <?php echo json_encode( self::build_params( [], 'PageView' ), JSON_PRETTY_PRINT | JSON_FORCE_OBJECT ) ?> );
document.addEventListener('DOMContentLoaded', function() {
jQuery && jQuery(function($){
$('body').on( 'added_to_cart', function()
{
// Testing output on browser JS console
console.log('added_to_cart');
$( 'body' ).append( '<div class=\"wc-facebook-pixel-event-placeholder\"></div>' );
});
});
}, false);
</script>
When adding product to cart, "added_to_cart" is printed in console. So the add to cart Ajax is working.
Here is the function that is not being trigger with Ajax.
// AddToCart while AJAX is enabled
add_action( 'woocommerce_ajax_added_to_cart', [ $this, 'add_filter_for_add_to_cart_fragments' ] );
// Setups a filter to add an add to cart fragment whenever a product is added to the cart through Ajax.
public function add_filter_for_add_to_cart_fragments() {
if ( 'no' === get_option( 'woocommerce_cart_redirect_after_add' ) ) {
add_filter( 'woocommerce_add_to_cart_fragments', [ $this, 'add_add_to_cart_event_fragment' ] );
}
}
// Adds an add to cart fragment to trigger an AddToCart event.
public function add_add_to_cart_event_fragment( $fragments ) {
if ( self::$isEnabled ) {
$script = $this->pixel->get_event_script( 'AddToCart', [
'content_ids' => $this->get_cart_content_ids(),
'content_type' => 'product',
'contents' => $this->get_cart_contents(),
'value' => $this->get_cart_total(),
'currency' => get_woocommerce_currency(),
] );
$fragments['div.wc-facebook-pixel-event-placeholder'] = '<div class="wc-facebook-pixel-event-placeholder">' . $script . '</div>';
}
return $fragments;
}
I'm using latest Wordpress & WooCommerce with Facebook for WooCommerce plugin.