Enable CORS

<!--In Web.config-->

  <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="POST,GET,OPTIONS"/>
    </customHeaders>
  </httpProtocol>
</system.webServer>