CORS - Access-control-allow-origin header not present [SOLVED]

In this tutorial we will study how to make the Web Api publically available for any domain.

Add following in your Wb.Config file in System.WebServer

  <httpProtocol>  
    <customHeaders>  
     <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" />  
    </customHeaders>  
  </httpProtocol>