How to get NetInfo working with expo-web?

I tried to use the NetInfo example from the expo docs: https://docs.expo.io/versions/latest/sdk/netinfo/

When I am compiling for web, the compiling fails with

TypeError: NetInfo.addEventListener is not a function
(anonymous function)
..components/OfflineFullScreen.jsx:22

  21 | 
> 22 |    const unsubscribe = NetInfo.addEventListener((state) => {
     | ^  23 |      console.log('Connection type', state.type);
  24 |      console.log('Is connected?', state.isConnected);
  25 |    });

even though the docs state that it should be supported.

My screen looks like that:

import React, { useEffect, useState } from 'react';
import {
  View, Text, StyleSheet, ActivityIndicator,
} from 'react-native';
// import NetInfo from '@react-native-community/netinfo';
import * as NetInfo from '@react-native-community/netinfo';

const OfflineNotice = () => {
  const [connected, setConnected] = useState(true);


  useEffect(() => {

    /* const unsubscribe = NetInfo.addEventListener((state) => {
      if (state.isConnected) {
        setConnected(true);
      } else {
        setConnected(false);
      }
    }); */

    const unsubscribe = NetInfo.addEventListener((state) => {
      console.log('Connection type', state.type);
      console.log('Is connected?', state.isConnected);
    });

    return unsubscribe();
  }, []);

  if (!connected) { // if not connected return an full sized overlay
    return (
      <View style={styles.offlineContainer}>
        <ActivityIndicator size="large" color="darkorange" />
        <Text style={styles.offlineText}>No Internet Connection</Text>
        <Text style={styles.offlineText}>Trying to reconnect ...</Text>
      </View>
    );
  }
  return null;
};

const styles = StyleSheet.create({
  offlineContainer: {
    alignItems: 'center',
    justifyContent: 'center',
    position: 'absolute',
    position: 'absolute',
    left: 0,
    top: 0,
    opacity: 0.85,
    backgroundColor: 'black',
    width: '100%',
    height: '100%',
    zIndex: 100,
  },
  offlineText: {
    color: '#fff',
    marginTop: '3%',
  },
});

export default OfflineNotice;

Any idea what I am doing wrong? Is it maybe a bug, as expo-web is still beta?

I'm using Expo SDK 37, @react-native-community/netinfo@4.6.0,

In React Native Web an outdated Netinfo version is used. This could be solved by adding a polyfill like the code below.

import { useEffect, useState, useCallback } from 'react';
import { Platform } from 'react-native';
import NetInfo from 'react-native-web/dist/exports/NetInfo';

function useOldNetInfo() {
  const [netInfo, setNetInfo] = useState<NetInfo.NetInfoState>({});
  const [isConnected, setIsConnected] = useState<boolean>(true);

  const onInfo = useCallback((data) => {
    setNetInfo({ ...data, isConnected });
  }, [isConnected]);

  useEffect(() => {
    NetInfo.getConnectionInfo().then(onInfo);
    NetInfo.isConnected.fetch().then(setIsConnected);
    return NetInfo.addEventListener('connectionChange', onInfo).remove;
  }, [onInfo]);

  return netInfo;
}

export default Platform.select({
  web: useOldNetInfo,
  ios: CommunityNetInfo.useNetInfo,
  android: CommunityNetInfo.useNetInfo,
});

Github Issue: https://github.com/expo/expo/issues/8070