// Dequeue jquery-migrate (not needed for modern plugins). add_action( 'wp_default_scripts', function ( $scripts ) { if ( ! is_admin() && isset( $scripts->registered['jquery'] ) ) { $script = $scripts->registered['jquery']; if ( ! empty( $script->deps ) ) { $script->deps = array_diff( $script->deps, array( 'jquery-migrate' ) ); } } } );