JS脚本将不会运行/执行无错误

如何解决JS脚本将不会运行/执行无错误

我有一个应在window.onload执行的脚本，该脚本通过XMLHttpRequest从解析的JSON填充html元素。控制台日志不会引发任何错误，但脚本不会执行任何操作。 如果有任何不同，我也会在虚拟服务器上运行它。

var filename = document.getElementById('filename').innerHTML
var lang = localStorage.getItem('language')
var xml = new XMLHttpRequest();
var url ="../assets/lang/"+lang+"/"+filename+".json"
var common ="../assets/lang/"+lang+"/!area_common.json"

window.onload = check;
function check(){
    if (lang === null){
        window.location.href = "lang.html";
        setTimeout(check,300);
    }else{
        setTimeout(pop,1);
        setTimeout(comm,10);
    };
    function comm(){ //this won't work
        xml.onreadystatechange = function() {
            if (this.readyState == 4 && this.status == 200) {
                var com = JSON.parse(this.responseText);
                document.getElementById("colpick").firstElementChild.innerHTML=com.colpick;
                document.getElementById("csquare").title=com.csquare;
                document.getElementsByClassName("notes")[0].firstElementChild.innerHTML=com.notes;
                document.getElementById("textArea").placeholder=com.textArea;
                document.getElementById("save").innerHTML=com.save;
                document.getElementById("wipe").innerHTML=com.wipe;
            }
        };
        xml.open("GET",common,true);
        xml.send();
    };
    function pop(){// also this won't work
        xml.onreadystatechange = function() {
            if (this.readyState == 4 && this.status == 200) {
                var file = JSON.parse(this.responseText);
                var dist_lore = document.getElementsByClassName("lore")[0]//tried also with class name;
                var lore01 = document.getElementById("lore01")//all these are divs with an <h2> and a <p> inside;
                var lore02 = document.getElementById("lore02");
                var lore03 = document.getElementById("lore03");
                var lore04 = document.getElementById("lore04");
                var lore05 = document.getElementById("lore05");
                var lore06 = document.getElementById("lore06");
                var lore07 = document.getElementById("lore07");
                var lore08 = document.getElementById("lore08");
                var lore09 = document.getElementById("lore09");
                var lore10 = document.getElementById("lore10");
                var lore11 = document.getElementById("lore11");
                var lore12 = document.getElementById("lore12");
                var lore13 = document.getElementById("lore13");
                var lore14 = document.getElementById("lore14");
                var lore15 = document.getElementById("lore15");
                var lore16 = document.getElementById("lore16");
                var lore17 = document.getElementById("lore17");
                var lore18 = document.getElementById("lore18");
                var lore19 = document.getElementById("lore19");
                var lore20 = document.getElementById("lore20");
                var lore21 = document.getElementById("lore21");
                var lore22 = document.getElementById("lore22");
                var lore23 = document.getElementById("lore23");
                var lore24 = document.getElementById("lore24");
                var lore25 = document.getElementById("lore25");
                var lore26 = document.getElementById("lore26");
                var lore27 = document.getElementById("lore27");
                var lore28 = document.getElementById("lore28");
                var lore29 = document.getElementById("lore29");
                var lore30 = document.getElementById("lore30");
                dist_lore.getElementsByTagName("h2")[0].innerHTML=file.dist_lore[0];
                lore01.getElementsByTagName("h2")[0].innerHTML=file.lore01[0];
                lore02.getElementsByTagName("h2")[0].innerHTML=file.lore02[0];
                lore03.getElementsByTagName("h2")[0].innerHTML=file.lore03[0];
                lore04.getElementsByTagName("h2")[0].innerHTML=file.lore04[0];
                lore05.getElementsByTagName("h2")[0].innerHTML=file.lore05[0];
                lore06.getElementsByTagName("h2")[0].innerHTML=file.lore06[0];
                lore07.getElementsByTagName("h2")[0].innerHTML=file.lore07[0];
                lore08.getElementsByTagName("h2")[0].innerHTML=file.lore08[0];
                lore09.getElementsByTagName("h2")[0].innerHTML=file.lore09[0];
                lore10.getElementsByTagName("h2")[0].innerHTML=file.lore10[0];
                lore11.getElementsByTagName("h2")[0].innerHTML=file.lore11[0];
                lore12.getElementsByTagName("h2")[0].innerHTML=file.lore12[0];
                lore13.getElementsByTagName("h2")[0].innerHTML=file.lore13[0];
                lore14.getElementsByTagName("h2")[0].innerHTML=file.lore14[0];
                lore15.getElementsByTagName("h2")[0].innerHTML=file.lore15[0];
                lore16.getElementsByTagName("h2")[0].innerHTML=file.lore16[0];
                lore17.getElementsByTagName("h2")[0].innerHTML=file.lore17[0];
                lore18.getElementsByTagName("h2")[0].innerHTML=file.lore18[0];
                lore19.getElementsByTagName("h2")[0].innerHTML=file.lore19[0];
                lore20.getElementsByTagName("h2")[0].innerHTML=file.lore20[0];
                lore21.getElementsByTagName("h2")[0].innerHTML=file.lore21[0];
                lore22.getElementsByTagName("h2")[0].innerHTML=file.lore22[0];
                lore23.getElementsByTagName("h2")[0].innerHTML=file.lore23[0];
                lore24.getElementsByTagName("h2")[0].innerHTML=file.lore24[0];
                lore25.getElementsByTagName("h2")[0].innerHTML=file.lore25[0];
                lore26.getElementsByTagName("h2")[0].innerHTML=file.lore26[0];
                lore27.getElementsByTagName("h2")[0].innerHTML=file.lore27[0];
                lore28.getElementsByTagName("h2")[0].innerHTML=file.lore28[0];
                lore29.getElementsByTagName("h2")[0].innerHTML=file.lore29[0];
                lore30.getElementsByTagName("h2")[0].innerHTML=file.lore30[0];
                dist_lore.getElementsByTagName("p")[0].innerHTML=file.dist_lore[1];
                lore01.getElementsByTagName("p")[0].innerHTML=file.lore01[1];
                lore02.getElementsByTagName("p")[0].innerHTML=file.lore02[1];
                lore03.getElementsByTagName("p")[0].innerHTML=file.lore03[1];
                lore04.getElementsByTagName("p")[0].innerHTML=file.lore04[1];
                lore05.getElementsByTagName("p")[0].innerHTML=file.lore05[1];
                lore06.getElementsByTagName("p")[0].innerHTML=file.lore06[1];
                lore07.getElementsByTagName("p")[0].innerHTML=file.lore07[1];
                lore08.getElementsByTagName("p")[0].innerHTML=file.lore08[1];
                lore09.getElementsByTagName("p")[0].innerHTML=file.lore09[1];
                lore10.getElementsByTagName("p")[0].innerHTML=file.lore10[1];
                lore11.getElementsByTagName("p")[0].innerHTML=file.lore11[1];
                lore12.getElementsByTagName("p")[0].innerHTML=file.lore12[1];
                lore13.getElementsByTagName("p")[0].innerHTML=file.lore13[1];
                lore14.getElementsByTagName("p")[0].innerHTML=file.lore14[1];
                lore15.getElementsByTagName("p")[0].innerHTML=file.lore15[1];
                lore16.getElementsByTagName("p")[0].innerHTML=file.lore16[1];
                lore17.getElementsByTagName("p")[0].innerHTML=file.lore17[1];
                lore18.getElementsByTagName("p")[0].innerHTML=file.lore18[1];
                lore19.getElementsByTagName("p")[0].innerHTML=file.lore19[1];
                lore20.getElementsByTagName("p")[0].innerHTML=file.lore20[1];
                lore21.getElementsByTagName("p")[0].innerHTML=file.lore21[1];
                lore22.getElementsByTagName("p")[0].innerHTML=file.lore22[1];
                lore23.getElementsByTagName("p")[0].innerHTML=file.lore23[1];
                lore24.getElementsByTagName("p")[0].innerHTML=file.lore24[1];
                lore25.getElementsByTagName("p")[0].innerHTML=file.lore25[1];
                lore26.getElementsByTagName("p")[0].innerHTML=file.lore26[1];
                lore27.getElementsByTagName("p")[0].innerHTML=file.lore27[1];
                lore28.getElementsByTagName("p")[0].innerHTML=file.lore28[1];
                lore29.getElementsByTagName("p")[0].innerHTML=file.lore29[1];
                lore30.getElementsByTagName("p")[0].innerHTML=file.lore30[1];               
            }
        };
        xml.open("GET",url,true);
        xml.send();
    }
}

请注意，我有一个类似的脚本可以正常工作：

var filename = document.getElementById('filename').innerHTML
var lang = localStorage.getItem('language')
var xmlhttp = new XMLHttpRequest();
var url ="assets/lang/"+lang+"/!"+filename+".json";
var loc = window.location.pathname;

window.onload = check;
function check(){
    if (lang === null){
        window.location.href = "lang.html";
        setTimeout(check,1);
    };
    function pop(){
        xmlhttp.onreadystatechange = function() {
            if (this.readyState == 4 && this.status == 200) {
                var file = JSON.parse(this.responseText);
                if (filename == "index"){
                    document.getElementsByTagName("title")[0].innerHTML=file.title;
                    document.getElementById("search").placeholder=file.search;
                    document.getElementById("settings").innerHTML=file.settings;
                }else if (filename == "settings"){
                    document.getElementById("settings").innerHTML=file.settings;
                    var info = document.getElementsByClassName("info")[0];
                    info.getElementsByTagName("h2")[0].innerHTML=file.h2[0];
                    info.getElementsByTagName("p")[0].innerHTML=file.p[0];
                    info.getElementsByTagName("p")[1].innerHTML=file.p[1];
                    info.getElementsByTagName("p")[2].innerHTML=file.p[2];
                    //
                    info.getElementsByTagName("h2")[1].innerHTML=file.h2[1];
                    info.getElementsByTagName("p")[3].innerHTML=file.p[3];
                    info.getElementsByTagName("p")[4].innerHTML=file.p[4];
                    //
                    info.getElementsByTagName("h2")[2].innerHTML=file.h2[2];
                    info.getElementsByTagName("p")[5].innerHTML=file.p[5];
                    info.getElementsByTagName("p")[6].innerHTML=file.p[6];
                    document.getElementById("fileDownload").innerHTML=file.download;
                    //
                    info.getElementsByTagName("h2")[3].innerHTML=file.h2[3];
                    info.getElementsByTagName("h2")[4].innerHTML=file.h2[4];
                }else if (filename == "about"){
                    var info = document.getElementsByClassName("info")[0];
                    info.getElementsByTagName("p")[0].innerHTML=file.p[0];
                    info.getElementsByTagName("p")[1].innerHTML=file.p[1];
                }
            }
        }
        xmlhttp.open("GET",true);
        xmlhttp.send();
    }
}

有什么建议吗？