Error during WebSocket handshake: Unexpected response code: 403 about speech-javascript-sdk HOT 2 CLOSED

  listen() {
    fetch('https://localhost:3001/api/speechtotext/token')
      .then( (response) => {
        return response.json();
      }).then( (token) => {
        const stream = recognizeMicrophone(Object.assign(token, {
          outputElement: '#output' // CSS selector or DOM Element
        }));

        stream.on('data',  (data) => {
          if (data.results[0]) {
            console.log(data.results[0]);
          }
          if (data.results[0] && data.results[0].final) {
            stream.stop();
            console.log('stop listening.');
          }
        });

        stream.on('error',  (err) => {
          console.log(err);
        });

      }).catch( (error) => {
        console.log(error);
      });
  }