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Hi All,

I am using MVC 4 application with angular js and calling Web API hosted on another url.
Both are my localhost but port are different.

Web API:
        public int SaveClient(TB_Client client)
ClientManager cmObj = new ClientManager();
            return cmObj.AddModifyClient(client);

Web API config file:
        <add name="Access-Control-Allow-Origin" value="*"/>
        <add name="Access-Control-Allow-Headers" value="Content-Type" />
        <add name="Access-Control-Allow-Methods" value="GET, POST, PUT, DELETE, OPTIONS" />

MVC application that calling this web api:
$'http://localhost:54212/api/Client/SaveClient', $scope.ClientObj).success(function (data, status, header, config) {
                    alert('Client added');
                error(function () {

But I still getting the error:
XMLHttpRequest cannot load http://localhost:54212/api/Client/SaveClient. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:52298' is therefore not allowed access. The response had HTTP status code 405.

Please guide me where I am lacking.
Thanks :)
Updated 4-Apr-16 15:33pm

Not sure what kind of setup you have, but maybe these articles can help you.

I want to add CORS support to my server[^]

HTML5 Rocks: Using CORS[^]
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It seems you need to Enable Cross-Origin Requests in ASP.NET Web API 2.

1) If you're using Visual Studio, then you can easily install the following Nuget package through Package Manager Console
Install-Package Microsoft.AspNet.WebApi.Cors

2) Then open the file App_Start/WebApiConfig.cs. Add the following config.EnableCors(); line code to the WebApiConfig.Register method.
public static void Register(HttpConfiguration config)
         // New code
         config.EnableCors(); <-------

             name: &quot;DefaultApi&quot;,
             routeTemplate: &quot;api/{controller}/{id}&quot;,
             defaults: new { id = RouteParameter.Optional }

3) Finally, you can add the [EnableCors] attribute on top of your Web API 2 Controller as followed:

using System.Web.Http.Cors;

namespace YourWebAPI2App.Controllers
    [EnableCors("*", "*", "*")]
    public class TestController : ApiController

You can check following link for more details on EnableCors options:

Hope it helps

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