How to enable cors in asp.net web Method

Question

Below code sample which i have implemented.

 

Global.asax 

protected void Application_BeginRequest(object sender, EventArgs e)
        {
            var context = HttpContext.Current;
            var response = context.Response;

            // enable CORS
            response.AddHeader("Access-Control-Allow-Origin", "*");

            if (context.Request.HttpMethod == "OPTIONS")
            {
                response.AddHeader("Access-Control-Allow-Methods", "GET, POST, OPTIONS");
                response.AddHeader("Access-Control-Allow-Headers", "Content-Type, Accept");
                response.End();
            }
        }

 Web.config

<system.webServer>
    <httpProtocol>
      <customHeaders>
       <add name="Access-Control-Allow-Headers" value="accept, content-type" />
        <add name="Access-Control-Allow-Origin" value="*" />
        <add name="Access-Control-Allow-Methods" value="POST, GET, OPTIONS" />
      </customHeaders>
    </httpProtocol>
  </system.webServer>