角度应用卡在无限循环中

我有一个Angular Web应用程序,它使用@microsoft/microsoft graph client获取登录用户的信息。@azure/msal angular用于登录用户。我有一个身份验证服务,它用这个登录用户:

  async signIn(): Promise<void> {
    const result = await this.msalService.loginPopup(OAuthSettings.consentScopes)
      .catch((reason) => {
        this.alertsService.add('Login failed', JSON.stringify(reason, null, 2));
      });

    if (result) {
      this.authenticated = true;
      await this.getUser();
    }
  }
  private async getClient(): Promise<Client> {
    const graphClient = Client.init({
      // Initialize the Graph client with an auth
      // provider that requests the token from the
      // auth service
      authProvider: async (done) => {
        const token = await this.getAccessToken()
          .catch((reason) => {
            done(reason, null);
          });
        if (token) {
          done(null, token);
        } else {
          done('Could not get an access token', null);
        }
      }
    });
    return graphClient;
  }

private async getUser() {
    if (!this.authenticated) {
      return null;
    }
    const graphClient = await this.getClient();

    // Get the user from Graph (GET /me)
    const graphUser = await graphClient.api('/me').get();

    console.log('USERNAME: ', graphUser.displayName);
    sessionStorage.setItem('d365dataportal.user', graphUser);
    if (graphUser.mail != null) {
      sessionStorage.setItem('d365dataportal.user.email', graphUser.mail);
    } else {
      sessionStorage.setItem('d365dataportal.user.email', graphUser.userPrincipalName);
    }
    sessionStorage.setItem('d365dataportal.user.avatar', graphUser.avatar);
    sessionStorage.setItem('d365dataportal.user.name', graphUser.displayName);
  }

我的OAuthSettings如下所示:

export const OAuthSettings = {
  appId: 'App GUID from Azure Here',
  redirectUri: 'http://localhost:4200',
  consentScopes: ['user.read',
    'Directory.Read.All',
    'Directory.ReadWrite.All',
    'Directory.AccessAsUser.All']
};

我遇到的问题是,当调用此.msalService.loginPopup()时,整个应用程序挂起,弹出窗口从不关闭,并且似乎从不进行身份验证并重定向回我的页面。我不知道为什么会这样。有人能看到任何明显的错误吗?

编辑

我离开上面的内容是因为这是我最初的问题。我意识到这个问题与我原来的头衔无关,于是改了问题的名字。