我正在使用Knockout JS，并有以下方法，使一个 AJAX 调用。最近我注意到一个控制台错误Expected ':'，发生在Internet Explorer 11。这在Chrome中工作正常。有什么特别的IE不能正确处理这里？

app.getAutoGeneratedSubmissionAttachments = function (carrierId, employerId, formId, submissionTypeId, IsMedical, IsDental, IsLife, IsVision, callBack) {
    $.ajax({
        url: $('#GetAutoGeneratedSubmissionAttachments').data('url'),
        type: 'GET',
        dataType: 'json',
        data: { IsMedical, IsDental, IsVision, IsLife, carrierId: carrierId, employerId: employerId, formId: formId, submissionTypeId: submissionTypeId },
        success: function (data) {
            callBack(data);
        },
        fail: function (data) {
            $.unblockUI();
            toastr.error("An error has occured on the server when retrieving additional submission documents.");
        }
    })
}