There is only one problem, I am just getting a "Securty Waring" alert in IE 8 in my SignalR chat application while in HTTPS

I am using longpolling as transport type when in IE8. Its working fine in all other IE browers.
self.Connect = function () {
hubConn.start({ transport: 'longPolling' }).done(function (result) {
///--
}).fail(function (error) {
///--
alert("error" + error);
});
}
When I tried fiddler, the security warning appeared with a signalr ajax call as shown below.
