What you may be surprised to learn is that Chrome isn't just stripping "www." from the beginning of the subdomain. "subdomain.www.domain.com" displays as "subdomain.domain.com"
about.www.github.io shows as about.github.io
I'm on board with this change in general, but this is absolutely something that needs to be fixed.
Not only is that just annoying and wrong, but it could be dangerous in some situations.
Also, it doesn't just stop at one removal.
http://www.www.about.www.www.stuff.www.www.example.com
about.stuff.example.com
also = about.stuff.example.com
Sounds like Chrome could now be a phisher's best friend…
Which is almost worse because it seems like people have put thought into this.
So stuff.www.com shows as stuff.www.com
But www.www.com shows as www.com
It's getting likely it will have to be reverted and a loud slap in the face delivered as should be.