从sessionStorage和Add To Header获取价值

Question

我可以像这样获得sessionStorage值＆gt;＆gt; $window.sessionStorage.getItem('token')我想将此标记添加到所有标题如何添加

get: function(url, headers, data, success, error) {
    $http({
            method: "GET",
            headers: headers,
            params: data,
            url: url
        })
        .then(function(response) {
                success(response.data);
            },
            error);
}