cors

gistfile1.txt

(function ($) {

    var ns = '__jquery_xdomain__',
        sc = 'SESSION_COOKIE_NAME';

    if ($.browser.msie && 'XDomainRequest' in window && !(ns in $)) {

        $[ns] = $.support.cors = true;

        function parseUrl(url) {
            if ($.type(url) === "object") {
                return url;
            }
            var matches = /^(((([^:\/#\?]+:)?(?:\/\/((?:(([^:@\/#\?]+)(?:\:([^:@\/#\?]+))?)@)?(([^:\/#\?]+)(?:\:([0-9]+))?))?)?)?((\/?(?:[^\/\?#]+\/+)*)([^\?#]*)))?(\?[^#]+)?)(#.*)?/.exec(url);
            return matches ? {
                href:matches[0] || "",
                hrefNoHash:matches[1] || "",
                hrefNoSearch:matches[2] || "",
                domain:matches[3] || "",
                protocol:matches[4] || "",
                authority:matches[5] || "",
                username:matches[7] || "",
                password:matches[8] || "",
                host:matches[9] || "",
                hostname:matches[10] || "",
                port:matches[11] || "",
                pathname:matches[12] || "",
                directory:matches[13] || "",
                filename:matches[14] || "",
                search:matches[15] || "",
                hash:matches[16] || ""
            } : {};
        }

        var oldxhr = $.ajaxSettings.xhr,
            sessionCookie = sc in window ? window[sc] : "jsessionid",
            domain = parseUrl(document.location.href).domain;

        $.ajaxSettings.xhr = function () {
            var target = parseUrl(this.url).domain;
            if (target === "" || target === domain) {
                return oldxhr.call($.ajaxSettings)
            } else {
                try {
                    var xdr = new XDomainRequest();
                    if (!xdr.setRequestHeader) {
                        xdr.setRequestHeader = $.noop;
                    }
                    if (!xdr.getAllResponseHeaders) {
                        xdr.getAllResponseHeaders = $.noop;
                    }
                    if (sessionCookie) {
                        var open = xdr.open;
                        xdr.open = function () {
                            var cookie = new RegExp('(?:^|; )' + sessionCookie + '=([^;]*)', 'i').exec(document.cookie);
                            cookie = cookie && cookie[1];
                            if (cookie) {
                                var q = arguments[1].indexOf('?');
                                if (q == -1) {
                                    arguments[1] += ';' + sessionCookie + '=' + cookie;
                                } else {
                                    arguments[1] = arguments[1].substring(0, q) + ';' + sessionCookie + '=' + cookie + arguments[1].substring(q);
                                }
                            }
                            return open.apply(this, arguments);
                        };
                    }
                    xdr.onload = function () {
                        if (typeof xdr.onreadystatechange === 'function') {
                            xdr.readyState = 4;
                            xdr.status = 200;
                            xdr.onreadystatechange.call(xdr, null, false);
                        }
                    };
                    xdr.onerror = xdr.ontimeout = function () {
                        if (typeof xdr.onreadystatechange === 'function') {
                            xdr.readyState = 4;
                            xdr.status = 500;
                            xdr.onreadystatechange.call(xdr, null, false);
                        }
                    };
                    return xdr;
                } catch (e) {
                }
            }
        };

    }
})(jQuery);