Error: Post http://127.0.0.1:8881: dial tcp 127.0.0.1:8881: setsockopt: bad address
    at $callDeferred (/js/testhttp.js:1412:17)
    at $panic (/js/testhttp.js:1451:3)
    at getDataFromPost (/js/testhttp.js:109234:4)
    at Object.v.$externalizeWrapper [as testhttprpc] (/js/testhttp.js:1867:24)
    at Object. (/js/testrpc.js:13:6)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.runMain (module.js:604:10)
    at run (bootstrap_node.js:390:7)
    at startup (bootstrap_node.js:150:9)
    at bootstrap_node.js:505:3

       url := "http://127.0.0.1:8881"
   fmt.Println("URL:>", url)

   var jsonStr = []byte(`{"id": 2}`)
   req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
   req.Header.Set("Content-Type", "application/json")
       client := &http.Client{
   	Transport: &http.Transport{
   		MaxIdleConnsPerHost: 5,
   	},
   }
       resp, err := client.Do(req) // this line caused error
   if err != nil {
   	panic(err)
   }

Does gopherjs support net/http module in golang ?