asp.net mvc 跨域配置

修改 web.config 文件

<system.webServer>
  <httpProtocol>
    <customHeaders>
      <add name="Access-Control-Allow-Origin" value="*" />
      <add name="Access-Control-Allow-Headers" value="*" />
      <add name="Access-Control-Allow-Methods" value="*" />
      <add name="Access-Control-Max-Age" value="*" />
    </customHeaders>
  </httpProtocol>
</system.webServer>