Subdomain and www issue

Site URL: https://shop.chenebleu.com/

Hi,

I wonder if anyone has a solution to this problem. 

The site is a subdomain of www.chenebleu.com, if in error someone puts www.shop.chenebleu.com into their address bar (one customer said to the client that his browser had hidden www and automatically added it!) you get a dead page.  Is it possible to add a redirect on www.shop.chenebleu.com to the DNS so if anyone types that in address in error they will be directed to shop.chenebleu.com?  

My limited experience says it is not possible as www CNAME is used for the www.chenebleu.com main domain and shop CNAME for the subdomain. There isn't a way to point "www.shop".  However I am no expert!

many thanks,

Sandra

Possible answer here: https://stackoverflow.com/questions/8296054/subdomains-not-working-when-www-is-added