Webapi table header set cross-domain

     Public Static classWebapiconfig { Public Static voidRegister (httpconfiguration config) {varsetting =System.Configuration.ConfigurationManager.AppSettings; varCors =NewEnablecorsattribute ("http://192.168.3.15:3000,http://192.168.3.15:3002","*","get,post,put,delete,options") {supportscredentials=true            }; Config.            Enablecors (cors); //Web API RoutingCONFIG.            Maphttpattributeroutes (); Config. Routes.maphttproute (Name:"Defaultapi", Routetemplate:"api/{controller}/", defaults:New{id = routeparameter.optional}, Constraints:New{id =@"\d+" }            ); }    }

Or, however, you cannot configure multiple IP addresses in config

  <system.webserver>    <Httpprotocol>      <customheaders>        <Addname= "Access-control-allow-origin"value= "http://192.168.6.43:3000" />         <Addname= "Access-control-allow-headers"value= "X-requested-with,content-type" />        <Addname= "Access-control-allow-method"value= "Get,post,options" />        <Addname= "Access-control-allow-credentials"value= "true" />      </customheaders>    </Httpprotocol>  </system.webserver>

Webapi table header set cross-domain