宝塔中对IIS网站开启跨域限制

            <httpProtocol>
                <customHeaders>
                     <add name="Access-Control-Allow-Methods" value="OPTIONS,POST,GET"></add>
                     <add name="Access-Control-Allow-Headers" value="x-requested-with,Content-Type"></add>
                     <add name="Access-Control-Allow-Origin" value="*" ></add>
                </customHeaders>
            </httpProtocol>