IIS配置跨域请求

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1.通过IIS配置 

2.通过Web.config配置

  <system.webServer>
    <!--跨域请求，允许前端调试-->
    <httpProtocol>
      <customHeaders>
        <add name="Access-Control-Allow-Headers" value="content-type" />
        <add name="Access-Control-Allow-Methods" value="GET,POST,PUT,DELETE,OPTIONS" />
        <add name="Access-Control-Allow-Origin" value="*" />
      </customHeaders>
    </httpProtocol>
  </system.webServer>