我使用的是AngularJS 1.2.20。
每当我使用$http
服务从URL(不同的域/服务器)访问zip文件时,它会给我一个错误,如下所示:
XMLHttpRequest cannot load http://localhost/ABC/updates.zip. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8080' is therefore not allowed access.
我试着在我的模块的配置中设置以下内容:
$httpProvider.defaults.useXDomain = true;
$httpProvider.defaults.withCredentials = true;
delete $httpProvider.defaults.headers.common["X-Requested-With"];
$httpProvider.defaults.headers.common["Accept"] = "application/json";
$httpProvider.defaults.headers.common["Content-Type"] = "application/json";
但是这仍然抛出错误。
我的代码片段是:$http({method: 'GET', url: paths.categoryUpdateURL}).
success(function(data, status, headers, config) {
// this callback will be called asynchronously
// when the response is available
alert("download Complete")
}).
error(function(data, status, headers, config) {
// called asynchronously if an error occurs
// or server returns response with an error status.
alert("error")
});
应该做些什么来防止这种情况?
除非服务器提供JSONP API,或者允许配置Access-Control-Allow-Origin响应属性,否则除了请求服务器请求ZIP文件之外,您不能做任何事情,因为浏览器不允许这样做。