Redmine

I am trying to consume Redmine API from an angularjs project.

I ended up using jsonp in order to solve CORS problem.

Why do I receive 404 when calling this:

var url = 'http://muser:mpasswd@myredmine/issues.json?callback=displayIssues';
$http({
method: 'JSONP',
url: url
}).
success(function (data, status) {
console.log("success");
console.log(data);
}).
error(function (data, status) {
console.log("Error: " + status);
});
...
function displayIssues(issues) {
console.log('displayIssues');
...
}
if the url actually exist and can be called via Postman?

here is my console:

GET http://muser:mpasswd@myredmine/issues.json?callback=displayIssues jsonpReq angular.js:8576(anonymous function) angular.js:8420sendReq angular.js:8291serverRequest angular.js:8025wrappedCallback angular.js:11498wrappedCallback angular.js:11498(anonymous function) angular.js:11584Scope.$eval angular.js:12608Scope.$digest angular.js:12420Scope.$apply angular.js:12712(anonymous function) angular.js:18980x.event.dispatch jquery-2.0.3.min.js:5y.handle @ jquery-2.0.3.min.js:5
authentication.service.js:100 Error: 404