const APIFile = "/send";

        let data = JSON.stringify({
          name: this.name,
          email: this.email,
          message: this.message
        });
        console.log(data);

        axios.post(APIFile, data, {
          headers: {
            "Content-Type": "application/json"
          }
        });


_____________________________________________

plik config/index.js:

    proxyTable: {
      '/send': {
        target: 'http://localhost:8012/portfolio/static/php/mail.php',
        changeOrigin: true
      }
    },