Vulnerability Level of jQuery/AJAX API call in webpage

问题

I have a simple call to a REST API using jQuery/AJAX. I realize that the parsing method here could be done more elegantly and will ask another question on that(although any comments here are welcome). Current Question: Are there glaring or not-so-glaring vulnerabilities in using this method to retrieve and parse api data. Would using a server-side script to retreve it first behind the firewall and save it outside the firewall to access it through this webpage be a marked improvement?

$(function() {


$.ajax({

    type: "GET",
    async: "true",
    crossDomain: "true",
    url: "https://data.usajobs.gov/api/Search?Organization=XXXX&WhoMayApply=All",
    headers: {
        "authorization-key": "XXXXXXXXXXXXXXXXXX",
        "user-agent": "XXXX@XXX.gov",
        "host": "data.usajobs.gov",
        "cache-control": "no-cache",
    }
}).done(function(data) {
    "use strict";
    var jts = [];
    var json_obj1 = (data.SearchResult.SearchResultItems);
    var json_obj2 = $.makeArray(json_obj1)


    $.map(json_obj2, function(v) {

        var start = v.MatchedObjectDescriptor.PositionStartDate;
        var start_f = moment.utc(start).format('MMMM Do YYYY');

        var end = v.MatchedObjectDescriptor.PositionEndDate;
        var end_f = moment.utc(end).format('MMMM Do YYYY');



        jts.push("<tr><td><strong><a href='" + v.MatchedObjectDescriptor.PositionURI + "'>" + v.MatchedObjectDescriptor.PositionID + ", " + v.MatchedObjectDescriptor.PositionTitle + "</a> &#187</strong></td><td>" + v.MatchedObjectDescriptor.JobGrade[0].Code + "-" + v.MatchedObjectDescriptor.UserArea.Details.LowGrade + " - " + v.MatchedObjectDescriptor.UserArea.Details.HighGrade + "</td><td>" + start_f + " - " + end_f + "</td><td>" + v.MatchedObjectDescriptor.UserArea.Details.WhoMayApply.Name + "</td></tr>");

        //show table on success()
        $('.job_table').css('display', 'block')
        $('#no_message').css('display', 'none')
    });

    var ls = jts.join("")

    $('.job_table tbody#live_jobs').html(ls);

    console.log(ls)


  });

});

来源：https://stackoverflow.com/questions/37392954/vulnerability-level-of-jquery-ajax-api-call-in-webpage