Research XHR/ajax local calls

[RedWolves]

From: http://stackoverflow.com/questions/14266827/how-to-convert-jquery-ajax-call-to-winjs-xhr-or-win8-equivalent/

Seems win8 is blocking local calls with jQuery ajax.

Research this and see if there is a problem we need to look into.

[jonathansampson]

After some testing I've concluded that the statement made in the referenced question ("windows 8 will not allow local ajax calls") is false. The following worked as expected in a sample application running jQuery 2.0pre.

$.ajax({
    url: "page.html",
    success: function (data) {
        $(data).appendTo("body");
    }
});

I can, however, cause this to raise the error the individual was seeing - "Access Denied", but setting the request type to "POST" rather than "GET" (default). I will research this a bit more later to see what, specifically, is the reason for getting this message when attempting an asynchronous POST.

It's worth noting that you get the same message when you attempt a POST with WinJS.xhr as well:

// The following results in 0x80070005 - JavaScript runtime error: Access is denied.
WinJS.xhr({
    url: "page.html",
    type: "POST"
});

You can, however, post to a remote endpoint:

$.ajax({
    url: "http://github.com",
    type: "POST",
    success: function (data) {
        $("body").text(data);
    }
});