There seem to be some issues arising from the Angular Chain HTTP component

I've been working on migrating data from one database to another in an angular.js application, and I am facing some challenges with the code. The specific issue arises when trying to obtain authorization credentials for sending POST requests to the receiving database. Although my initial function,

ATsintegrationsService.beginBackfill(clientIDs)
, successfully retrieves the list of applicants, the problem starts at getAuthToken(). Despite correctly accessing the URL with the required data, I keep encountering errors within the service. If anyone could provide insights into what might be causing these problems, I would greatly appreciate it as I'm currently stuck.

The main function triggered by pressing an apply button:

$scope.beginBackfill = function() {
    $scope.loading = true;
    AtsintegrationsService.beginBackfill($scope.clientids).then(function (response) {
       $scope.applicants = response.data;
       $scope.getAuthToken();
       $scope.createSuccess = true;
       $scope.loading = false;
     },
       function(error) {
          $scope.loading = false;
          $scope.createFailure = true;
          console.log("Failure to backfill data - " + error);
       });
   };

This is how $scope.getAuthToken() is implemented:

$scope.getAuthToken = function() {
    AtsintegrationsService.getAuthToken().then(function (response) {
        $scope.authToken = response.data;
        console.log($scope.authToken);
    },
    function(error) {
        $scope.loading = false;
        $scope.createFailure = true;
        console.log("Failure to obtain auth token - " + error);
        console.log(error);
    });
};

And this is the service code for getAuthToken(), where certain sensitive data has been replaced with placeholders like {snip}.

srvc.getAuthToken = function () {
var url = {snip};

return $http({
    headers: {
        'Content-Type': 'application/x-www-form-urlencoded'
    },
    responseType: 'json',
    method: 'POST',
    url: url,
    data:
    {
        "grant_type": "{snip}",
        "client_id": {snip},
        "client_secret": "{snip}"
    }
})
  .success(function (data) {
    console.log("We have a proper return.");
    return data;
  })
  .error(function (data) {
    console.log("There was an error in the service.");
    return data;
  });
 };

Answer â„–1

After some investigation, we determined that the issue was related to CORS headers rather than my code.

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