405-Method Not allowed for the HTTP Post in ASP.Net Web Api 2.0

Question

I am using ASP.Net Web Api 2.

I have almost gone through more than 10-15 links including MSDN but still issue persists, hence posting this question.

 <system.webServer>
 <handlers>
  <remove name="WebDAV" />
  <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
  <remove name="OPTIONSVerbHandler" />
  <remove name="TRACEVerbHandler" />

  <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
<httpProtocol>
    <customHeaders>

      <add name="Access-Control-Allow-Origin" value="*" />
      <add name="Access-Control-Request-Headers:" value="*" />
      <add name="Access-Control-Request-Method:" value="*" />
      <add name="Access-Control-Allow-Methods" value="*" />

    </customHeaders>

</httpProtocol>
<modules runAllManagedModulesForAllRequests="true">
  <remove name="WebDAVModule" />
</modules>

• Added above configuration in my web.config
• Installed Microsoft.AspNet.WebApi.Cors
• Decorated my class with [EnableCors(origins: "*", headers: "*", methods: "*")]

Now I have published this to IIS and trying to access the services from JavaScript/jQuery. However, HTTP Get is returning success(as desired) but HTTP Post is returning the below error:

HTTP 405-Method not allowed

What should I do to fix this error for the HTTP Post or PUT?

//jQuery ajax call
$.ajax(
{
   url : "http://myip:myport/api/Customer
   type : "POST",
   data: {'custName' : name},
   success : function(e)
   {

   },
  error: function(e)
  {
  }
})

My class:

 [EnableCors(origins: "*", headers: "*", methods: "*")]
public class CustomerController : ApiController
{
    private static List<string> namesList = new List<string>();

    public IEnumerable<string> Get()
    {
        namesList.Add("Chetan");
        return namesList;
    }

    [HttpPost]
    public void Post(string name)
    {
        namesList.Add(name);
        return;
    }
}

routes.config

public static void RegisterRoutes(RouteCollection routes)
    {
        routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

        routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{id}",
            defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
        );
    }

WebApiConfig

     public static void Register(HttpConfiguration config)
    {
        // Web API configuration and services

        // Web API routes
        config.MapHttpAttributeRoutes();

        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );
    }

Below link doesn't suffice the question. I already have tried with it.
Asp.NET Web API - 405 - HTTP verb used to access this page is not allowed - how to set handler mappings