<script src="https://accounts.google.com/gsi/client"></script>
...
declare var google: any;
...

  useEffect(() => {
    const handleCredentialResponse = (response: any) => {
      console.log(response);
    };
    const client_id = process.env.REACT_APP_GOOGLE_CLIENT_ID;
    const callback = handleCredentialResponse;
    const auto_select = true;
    google.accounts.id.initialize({ client_id, callback, auto_select });
    google.accounts.id.prompt((notification: any) => {
      console.log(notification);
    });
  }, []);

为什么根本handleCredentialResponse没有被调用？用户被提示登录，他们点击继续，然后该函数永远不会被调用！呸！以上取自此处和此处的文档

该notification注销

nl {g: "display", h: true}
nl {g: "skipped", l: "issuing_failed"}