gistfile1.txt

const THE_URL = "https://gist.githubusercontent.com/nakosung/ee76a5f41a59627f22cf/raw"

let actor = null
function write(something) {
    if (actor == null) {
        actor = new TextRenderActor(GWorld, { X: 800, Z: 100 }, { Yaw: 180 })
        actor.TextRender.SetHorizontalAlignment('EHTA_Center')
    }
    
    actor.TextRender.K2_SetText(something)
}

function load(url) {
    write("loading " + url)
    return new Promise((resolve, reject) => {
        var req = new JavascriptHttpRequest()
        req.SetVerb("GET")
        req.SetURL(url)
        req.OnComplete.Add(function (success) {
            if (success) {
                let result = eval(req.GetContentAsString())
                write("loading " + url + ":done")
                try {
                    resolve(result)
                    write("done!!!")
                } catch (e) {
                    write(String(e))   
                }
            } else {
                write("loading " + url + ":fail")
                reject()
            }
        })
        req.ProcessRequest()
    })
}

load("https://gist.githubusercontent.com/nakosung/447be3145bbf2d8c1f9d/raw/")