我已經(jīng)創(chuàng)建了旅行服務(wù)器。它工作正常，我們可以POST通過 Insomnia 發(fā)出請(qǐng)求，但是當(dāng)我們POST在前端通過 axios 發(fā)出請(qǐng)求時(shí)，它會(huì)發(fā)送錯(cuò)誤：has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: It does not have HTTP ok status.我們對(duì)axios的要求：let config = {headers: {  "Content-Type": "application/json",  'Access-Control-Allow-Origin': '*',  }}let data = {  "id": 4 } axios.post('http://196.121.147.69:9777/twirp/route.FRoute/GetLists', data, config)   .then((res) => {      console.log(res)     })    .catch((err) => {      console.log(err)   });} 我的去文件：func setupResponse(w *http.ResponseWriter, req *http.Request) {    (*w).Header().Set("Access-Control-Allow-Origin", "*")    (*w).Header().Set("Access-Control-Allow-Methods", "POST,GET,OPTIONS, PUT, DELETE")    (*w).Header().Set("Access-Control-Allow-Headers", "Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization")}func WithUserAgent(base http.Handler) http.Handler {    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {    ctx := r.Context()    ua := r.Header.Get("Jwt")    ctx = context.WithValue(ctx, "jwt", ua)    r = r.WithContext(ctx)    setupResponse(&w, r)     base.ServeHTTP(w, r)  })}const (    host     = "localhost"    port     = 5432    user     = "postgres"    password = "postgres"    dbname   = "postgres")func main() {    psqlInfo := fmt.Sprintf("host=%s port=%d user=%s "+           "password=%s dbname=%s sslmode=disable",               host, port, user, password, dbname)    server := &s.Server{psqlInfo}    twirpHandler := p.NewFinanceServiceServer(server, nil)    wrap := WithUserAgent(twirpHandler)      log.Fatalln(http.ListenAndServe(":9707", wrap))}正如我之前在 Insomnia 上所說的那樣，它工作得很好，但是當(dāng)我們發(fā)出 axiosPOST請(qǐng)求時(shí)，在瀏覽器的控制臺(tái)上會(huì)出現(xiàn)以下內(nèi)容：已被 CORS 策略阻止：對(duì)預(yù)檢請(qǐng)求的響應(yīng)未通過訪問控制檢查：它沒有 HTTP 正常狀態(tài)。