IIS7 CROS Config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
 <system.webServer>
   <httpProtocol>
    <customHeaders>
      <add name="Access-Control-Allow-Origin" value="*" />
      <add name="Access-Control-Allow-Methods" value="GET, PUT, POST, DELETE, HEAD, OPTIONS" />
      <add name="Access-Control-Allow-Credentials" value="true"/>
      <add name="Access-Control-Allow-Headers" value="X-Requested-With, origin, content-type, accept" />
    </customHeaders>
  </httpProtocol>
 </system.webServer>
</configuration>