AWS Cognito不适用于IE 11或Safari

Question

因此，我正在尝试使用cognito来管理我的React应用程序中的身份验证，身份提供者为SAML。在Chrome和Firefox中，此功能运行非常顺利，但在IE 11或Safari中却无法正常运行。这是我设置的身份验证：

import { Component } from 'react';
import { connect } from 'react-redux';
import { CognitoAuth } from 'amazon-cognito-auth-js';
import { signIn, signOutSuccess } from '../store/auth';
import { setupAxios } from '../axios';

import {
  AWS_COGNITO_CLIENT_ID,
  AWS_COGNITO_USER_POOL_ID,
  AWS_COGNITO_REDIRECT_SIGN_IN,
  AWS_COGNITO_REDIRECT_SIGN_OUT,
  AWS_COGNITO_APP_WEB_DOMAIN
} from '../env';

const cognitoSetup = props => {
//as per documentation
  const authData = {
    ClientId: AWS_COGNITO_CLIENT_ID,
    TokenScopesArray: ['email', 'openid', 'profile'],
    RedirectUriSignIn: AWS_COGNITO_REDIRECT_SIGN_IN,
    RedirectUriSignOut: AWS_COGNITO_REDIRECT_SIGN_OUT,
    AppWebDomain: AWS_COGNITO_APP_WEB_DOMAIN,
    IdentityProvider: 'SAML',
    UserPoolId: AWS_COGNITO_USER_POOL_ID
  };

  const auth = new CognitoAuth(authData);
  auth.useCodeGrantFlow(); //getting the refresh token

  auth.userhandler = {
    onSuccess: result => {
      const { profile, name, family_name, email } = result.idToken.payload;
      //passes role to store for use in the rest of the app
      const username = result.idToken.payload.identities[0].userId;
      const fullName = `${name} ${family_name}`;
      props.signIn({ username, profile, fullName, email });
    },
    onFailure: function(err) {
      console.error(err);
      throw err;
    }
  };
  return auth;
};


export class AuthService extends Component {
  constructor(props) {
    super(props);
    this.authService = cognitoSetup(this.props);
//passes the auth to axios to check for token on request
    setupAxios(this.authService);
  }

  componentDidMount() {
    const curUrl = window.location.href;
    if (curUrl.includes('?code=')) {
      this.authService.parseCognitoWebResponse(curUrl);
    } else if (!curUrl.includes('?error')) {
      this.authService.getSession();
    }
  }

  signOut = async () => {
    await this.authService.signOut();
  };

  async componentDidUpdate(prevProps) {

    if (prevProps.shouldSignOut !== this.props.shouldSignOut) {
      if (this.props.shouldSignOut) {
        await this.signOut();
        this.props.signOutSuccess();
      }
    }
  }
//render nothing 
  render() {
    return null;
  }
}

const mapState = state => ({
  username: state.auth.username,
  signedIn: state.auth.signedIn,
  shouldSignOut: state.auth.shouldSignOut
});

const mapDispatch = dispatch => ({
  signIn: (username, profile) => dispatch(signIn(username, profile)),
  signOutSuccess: () => dispatch(signOutSuccess())
});

export default connect(mapState, mapDispatch)(AuthService);

此AuthService.js在加载应用程序时呈现。但是，在IE11中加载时，出现错误var jsonDataObject = JSON.parse(jsonData);无效字符。在野生动物园中，我在控制台中收到{"error":"invalid_grant"}错误。

我不知道为什么会这样。我已经调查并得出结论，这在amazon-cognito-auth-js软件包中正在进行。我对这个程序包是由亚马逊制造的印象很深，所以我相信这个程序包没有错，但是我看不到其他人遇到这个问题。有人有建议吗？

编辑：野生动物园的问题是，对后端的请求末尾缺少'/'字符，因此未发送令牌。

编辑第2部分：我有一个polyfill

Answer 1

我看到您在代码中使用了箭头功能=>，IE中的箭头功能为not supported。您可以使用babel编译它以及将其他ES6语法编译为ES5。例如，编译：

const cognitoSetup = props => {
  ...
}

至：

var cognitoSetup = function cognitoSetup(props) {
  ...
}

此外，您是否在react-app-polyfill的第一行中导入了src/index.js？这是React app在IE 11中运行所必需的。有关详细步骤，请参考this thread中的答案。