Why don't work in the android Chrome browser?

Question

I try to run it in Chrome, but socket.io not load.
In the SoloLearn app it works perfectly.
https://code.sololearn.com/W3m49Xo3f77L/?ref=app

Answer 1

In SoloLearn app work:
https://imgur.com/a/6aghT4K
But in the browser no:
https://imgur.com/a/arzvMhA