Reply To: Add to cart button stuck and keep on loading on product page

Try to add the following PHP code snippet to the child theme functions.php file to fix this

add_filter('woocommerce_add_to_cart_redirect', function( $url ) {
	if( strpos( $url, 'product-added-to-cart' ) > 0 || strpos( $url, 'product_added_to_cart' ) > 0) {
		return '';
	} 
	return $url;
 }, PHP_INT_MAX);

Kind Regards