file_get_contents.js

<!DOCTYPE html>
<html>
<body id="data">

</body>
<script>
function curi(url, id) {
    var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function() {
      if (this.readyState == 4 && this.status == 200) {
        var str = this.responseText;
        var str = str.replace("[{", "{");
        var str = str.replace("}]", "}");
        var myObj = JSON.parse(str);
        document.getElementById(id).innerHTML = myObj.body;
      }
    };
    xmlhttp.open("GET", "https://api.hack.co.id/header/?domain=" + url, true);
    xmlhttp.send();
}
//          url         element id (ex: <body id="data">)
curi('https://github.com', 'data');
</script>
</html>