Solution to the CORS issue

CORS:Cross-Origin Resource Sharing

In the web.config file, add the following:

<system.webServer>
   <httpProtocol>
     <customHeaders>

        <add name="access-control-allow-origin" value="*" />
        <add name="access-control-allow-headers" value="content-type" />

     </customHeaders>
   </httpProtocol>
</system.webServer>  

Enable anonymous authentication 

    <anonymousAuthentication enabled="true"/>