WP theme caching

<?php

// wp-config.php
define('MCARE_DEV_MODE', true);

// wp-content/themes/divi-child/functions.php
    wp_enqueue_style(
        'theme-style',
        get_theme_file_uri('/build/style.css'),
        'parent-style',
        MCARE_DEV_MODE ? time() : '1.0'
    );