Url to update
As mentioned from official site

> We're moving to coinhive.com. Please update your script tags and API calls to the new domain now!
> 
> The old domain (coin-hive.com) will of course continue to function, but will be redirected to the new domain in a few days, instead of serving content directly.

i think server.js (embedded html) must be updated to new url coinhive.com