Stops the WordPress Heartbeat script on dashboard pages where live locking and autosave updates are not needed.
add_action( 'admin_enqueue_scripts', 'wpfolks_disable_dashboard_heartbeat' );
function wpfolks_disable_dashboard_heartbeat( $hook_suffix ) {
if ( 'index.php' === $hook_suffix ) {
wp_deregister_script( 'heartbeat' );
}
}
