Force the WPForms Google Recaptcha script to load asynchronously to improve site performance

wpforms-recaptcha-async.php

<?php
/*
 * Plugin Name: WPForms: Force Async Scripts
 * Plugin URL: https://gist.github.com/macbookandrew/30eb660833192066e5ea7691fc735e9f
 * Description: Force the WPForms Google Recaptcha script to load asynchronously to improve site performance
 * Version: 1.0.0
 * Author: AndrewRMinion Design
 * Author URI: https://andrewrminion.com
 */

if (!defined('ABSPATH')) {
    exit;
}

/**
 * Add async attribute if the path contains Google Recaptcha
 * @param  string $tag    HTML <script> tag
 * @param  string $handle WordPress’ internal handle for this script
 * @return string HTML <script> tag
 */
function wpforms_recaptcha_add_async( $tag, $handle ) {
    if ( strpos( $tag, 'recaptcha/api.js?onload=wpformsRecaptchaLoad' ) !== false ) {
        $tag = str_replace( ' src', ' defer async="async" src', $tag );
    }
    return $tag;
}
add_filter( 'script_loader_tag', 'wpforms_recaptcha_add_async', 99, 2 );

Changelog

• 1.0.0: initial plugin