.Net Core 跨域

<system.webServer>
  <httpProtocol>
    <customHeaders>
      <add name="Access-Control-Allow-Headers" value="Content-Type,Accept,X-Requested-With,Token"/>
      <add name="Access-Control-Allow-Methods" value="GET,POST,PUT,DELETE,OPTIONS"/>
      <add name="Access-Control-Allow-Origin" value="*"/>
    </customHeaders>
  </httpProtocol>
</system.webServer>