Fix WooCommerce Limit on Variations (Front End)

fix-woocommerce-max-variations-frontend

/**
 * Fix for issue where too many variations causes the front end to not pre-load
 * all variations and rely on AJAX.
 */
function custom_wc_ajax_variation_threshold( $qty, $product )
{
    return 400;
}
add_filter( 'woocommerce_ajax_variation_threshold', 'custom_wc_ajax_variation_threshold', 10, 2 );