web api returning html instead of json - angularjs

Question

I've created an asp.net core project and in the project I have an angularjs application and also a web api project. The angularjs application loads when I login via postman I get the response I expect in json. But when I try the same in angularjs I get the response in html.
I've tried quite a few settings but unable to get this working.
Tried setting the $http services header, and $httpProvider header but unable to get this working in angular js.
I set the content-type in postman to application/json and it works so not think its because the content-type is wrong in angular js.
Startup.cs file:
public void ConfigureServices(IServiceCollection services)
{
services
.AddMvcCore()
.AddJsonFormatters();
// Add framework services.
services.AddMvc().AddJsonOptions(
options =>
options.SerializerSettings.ContractResolver = new
CamelCasePropertyNamesContractResolver()
);
The controller in web api is:
[Route("test3")]
[HttpPost]
public JsonResult Test3([FromBody]LoginUserRequest model)
{
LoginUserResponse response = new LoginUserResponse();
response.validLogin = false;
response.Message = "failed" + model.Email;
return Json(response);
}
Angular js service:
vm.getLogin = getLogin;
function getLogin(request) {
return $http.post('/webapi/account/test3',request,{
headers: { 'Content-Type': 'application/json; charset=utf-8'}
})
.then(getLoginComplete)
.catch(getLoginFailed);
}
function getLoginComplete(data, status, headers, config) {
return data.data;
}
function getLoginFailed(e) {
var newMessage = 'XHR Failed for login';
if (e.data && e.data.description) {
newMessage = newMessage + '\n' + e.data.description;
}
e.data.description = newMessage;
return {"error":true, "message":"Unable to login please try again later"};
}
Chrome network via developer tools:
Request URL:http://localhost:5000/webapi/account/test3
Request Method:POST
Status Code:200 OK
Remote Address:[::1]:5000
Referrer Policy:no-referrer-when-downgrade
Response Headers
view source
Content-Type:text/html; charset=utf-8
Date:Tue, 11 Jul 2017 19:58:46 GMT
Server:Kestrel
Transfer-Encoding:chunked
Request Headers
view source
Accept:application/json, text/plain, /
Accept-Encoding:gzip, deflate, br
Accept-Language:en-GB,en-US;q=0.8,en;q=0.6
Connection:keep-alive
Content-Length:61
Content-Type:application/json; charset=UTF-8
Host:localhost:5000
Origin:http://localhost:5000
Referer:http://localhost:5000/login