CORS Proxy

1) In package.json adaugi   "proxy": "http://localhost:5000", -> portu il pui pe care il folosesti tu pt https
2) Dai npm start
3) Exemplu de request :
getLoginData = () => {
    const config = {
      mode: "no-cors",
      headers: {
        "Access-Control-Allow-Origin": "*",
        "Access-Control-Allow-Methods": "GET,POST,PUT,DELETE",
        "Content-Type": "application/json"
      },
      withCredentials: true,
      credentials: "same-origin"
    };

    this.setState({ isLoading: true });
    axios
      .post(
        "/api/staff/login",
        {
          Username: this.state.username,
          Password: this.state.password
        },
        config
      )
      .then(response => {
        console.table(response.data);
        this.props.setAuthData(response);
        this.checkLogin();
        this.setState({ isLoading: false });
      })
      .catch(() => {
        console.log("Error");
        this.setState({ isLoading: false });
        this.checkLogin();
      });
  };