example jQuery to contact our wordpress site and bring in our menu into our hubspot template

site.js

// I place this inside window.load so that the page gets moving and then the header gets brought in.
// you can change the cache to true
// you can do a lot more with this. Once you get a working version of this you will begin to think about
// all the ways you can play with this
$(window).load(function() {
    $.ajax({
        type : 'GET',
        url : 'http://www.domain.com/primary-menu', // make sure this is the url of your menu page you created
        dataType : 'html',
        cache: 'false',
        success : function(data){
            // this is the div we are going to place our menu into. Make sure this is changed below
            // data is the content of your page. You can get more advanced on this by parsing and doing 
            // some other stuff with the data.
            $('#js-insert-primary-menu').html(data);
        },
        error : function(XMLHttpRequest, textStatus, errorThrown) {
            // I leave some sort of error here so that I can immediatly understand what is the issue
            // you might want to remove this stuff and only have a console message to contact developer
            // or whatever
            $('#js-insert-primary-menu').html('There was an error, please check console');
            console.log(errorThrown);
        }
    });
});