Cannot scan command inputs

[etiennepericat]

If i'm launching my app with fresh, i'm not able to scan user input from the command line. (tested with bufio and others go scanners)

This bunch of code (from https://developers.google.com/gmail/api/quickstart/go) :

	authURL := config.AuthCodeURL("state-token", oauth2.AccessTypeOffline)
	fmt.Printf("Go to the following link in your browser then type the "+
		"authorization code: \n%v\n", authURL)
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Scan()
	err := scanner.Err()
	if err != nil {
		log.Fatalf("Unable to retrieve authorization code: %v", err)
	}
	authCode := scanner.Text()
	fmt.Printf("Auth code: %s\n", authCode)

will never stop (it should stop at "Scan()" on line 5)

If I'm launching my app without fresh this code works.

Do someone knows how can I fix this ?

Thanks a lot