Received an invalid response. Origin 'null' is therefore not allowed access

Question

I am following a book example hence the code is very simple. This is the code:
I see an error in Chrome console:

$(function() {
    $(".lang").change(function(){

    var element = $(this);

    var id = element.attr("value");

    if(id == 'english')
    {
        $.ajax({
            type: "GET",
            url: "jsfiles/english.js",
            dataType: "script"
        }); 
    }

    return false;

    });

});

Answer 1

Origin null means you are loading the HTML document directly from your file system. You can't use XMLHttpRequest without HTTP.

Either install a web server for your development, or dynamically generate a <script src="..."></script> instead.