jQuery.ajax成功函数未在win xp中执行

Code:

码：

$.ajax({
    type: "POST",
    url: "students/login",
    data:{"data[Student][email]":_email,"data[Student][password]":_password},ss
    beforeSend: function(){
        $("#confirm").text("");
    },
    error: function (xhr, status) {
        alert(status);
    },
    success: function(msg){
        if(msg == " success"){
            $("#confirm").text("Log in, please wait .......");
        } else {
            $("#confirm").text("No such user or password is incorrect!");
        }
    }
});
$.ajax({
    type: "POST",
    url