Problems retrieving blog posts on IE9

I've been trying to retrieve the latest post from several blogs in a single 
web page without success on IE9. The code is described bellow.

function getBloggerInfo(lista) {
    moment.locale('pt-br');

    for (var i = 0; i < lista.length; i++) {
        if (lista[i].BlogKey!= null && lista[i].BlogCode != null) {
            $.ajax({
                url: "https://www.googleapis.com/blogger/v3/blogs/" + 
lista[i].BlogCode + "/posts?key=" + lista[i].BlogKey,
                type: 'get',
                cache: false,
                async: false,
                success: function (retorno) {
                    for (var a = 0; a < retorno.items.length; a++) {
                        lista[i].DataUltimaPublicacao = 
moment(retorno.items[a].published).format('L');
                        lista[i].HoraUltimaPublicacao = 
moment(retorno.items[a].published).format('LT');
                        lista[i].NmDescLastPost = retorno.items[a].content;
                        lista[i].NmLink = retorno.items[a].url;
                        break;
                    }
                },
                error: function (retorno) {
                }
            });
        }
    }
}

I've also tried to use the solution described here. 

All of them seems to work on IE 10 and 11, but not on IE9. Inspecting the 
variable 'retorno', it has status 0, without the expected response in both 
cases.

I'm using API version 3.0. Can anybody help me?

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