the demo not work

[yhio]

I open the demo :https://tableflip.github.io/ipfs-peer-map-example/dist/ can not find peers in the page, only the map. I use ipfs-desktop to connect to IPFS, and I have Installed the IPFS Companion web extension on chrome. press F12 on the page,the information is displayed as follows：

Uncaught (in promise) TypeError: this._ipfs.swarm.peers is not a function
    at PeerEmitter._updatePeers (bundle.js:299)
    at new PeerEmitter (bundle.js:299)
    at new PeerLocationEmitter (bundle.js:299)
    at getIpfs.then.e (bundle.js:296)