function mb_child_custom_collapse_toggle_scripts() {
    $custom_script = "
        (function($) {
            $(document).ready(function () {
                $(document).click(function (event) {
                    var clickover = $(event.target);
                    var _opened = $('.navbar-collapse').hasClass('collapse in');
                    if (_opened === true && !clickover.hasClass('navbar-toggle')) {
                        $('button.navbar-toggle').click();
                    }
                });
            });
        })(jQuery);
    ";
    wp_add_inline_script( 'mybag-js', $custom_script );
}
add_action( 'wp_enqueue_scripts', 'mb_child_custom_collapse_toggle_scripts', 100 );