"No 'Access-Control-Allow-Origin' header is present on the requested resource" error for response from http://www.google.com/

Question

//Create an Angular Module. var newsModule = angular.module('NewsModule', []);  //Create an Angular Controller. newsModule.controller('newsCtrl', ['$scope', '$http', function ($scope, $http) { //function retrives POST,UPDATE,DELETE,GET data  $http.defaults.headers.put = {         'Access-Control-Allow-Origin': '*',         'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, OPTIONS',         'Access-Control-Allow-Headers': 'Content-Type, X-Requested-With'         };         $http.defaults.useXDomain = true;      $scope.throughdata = function (){   delete $http.defaults.headers.common['X-Requested-With'];          $http.get('http://www.google.com').then(function(data,error){             alert(data);             alert(error);             $scope.days=data.data;           });        } }  ]); 

But I have getting following errors

XMLHttpRequest cannot load http://www.google.com/. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access.

Answer 1

Access-Control-Allow-Origin is set on the response from server, not on client request to allow clients from different origins to have access to the response.

In your case, http://www.google.com/ does not allow your origin to have access to the response. Therefore you cannot read it.

For more information about CORS: https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS