出于某种原因，每当我尝试将一些数据发布到我的 api 服务器时，我都会收到以下两个错误。
OPTIONS http://localhost:3000/test2 Request header field Content-Type is not allowed by Access-Control-Allow-Headers. angular.min.js:99
XMLHttpRequest cannot load http://localhost:3000/test2. Request header field Content-Type is not allowed by Access-Control-Allow-Headers.
这是我试图发送一些简单数据的客户端 Angular JS 代码。此代码当前在位于下的 nginx 服务器上运行http://localhost:8080
function Controller($scope, $http) {
//scope is all of the elements within the controller declared on the html
var url = 'http://localhost:3000/test2';
$scope.listVaules = function () {
console.log("about to post user id");
console.log($scope.user.userId);
console.log($scope.user.name);
console.log($scope.user.password);
console.log(JSON.stringify($scope.user));
$http({ method: 'Post', url: url, data: JSON.stringify($scope.user) }).
success(function (data, status, headers, config) {
console.log(data);
console.log('success');
}).
error(function (data, status, headers, config) {
console.log('error');
});
};
}
这是我的节点 JS 代码来处理“处理”请求localhost:3000/test2
// CORS header securiy
app.all('/*', function (req, res, next) {
res.header("Access-Control-Allow-Origin", "*");
res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE');
res.header("Access-Control-Allow-Headers", "X-Requested-With");
next();
});
//Should post client side json info to the server
app.post(url + '/test2', function(req, res) {
var name = req.body.name;
var userId = req.body.userId;
var password = req.body.password;
console.log(name + ' ' + userId + ' ' + password);
res.send(200);
});