I know this question has been asked many times and it is due to same-origin policy however My files are normal .html files on my computer hard drive on the same folder and I still get this error!
<script>
    $(function() {
        $("#some").load("include.html");
        });
</script>
And include.html only has one <p> tag which contains some text. I have downloaded jQuery and  included it! I can run other scripts but this one causes the following error:
    Failed to load resource: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access.        file:///C:/Users/MYUSER/Documents/code/include.html
    XMLHttpRequest cannot load file:///C:/Users/MYUSER/Documents/code/include.html. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access. 
As you can see they are in the same folder but I still get this error. I user Chrome as browser!
some is the id of the div tag in the body of my page.