I am working on a website project and the client has requested (for reasons of hosting convenience) that the new website be located in a specific folder. This means that all pages will be in www.domain.com/folder instead of just www.domain.com, and they will have a meta instant redirect on the default page for www.domain.com which will redirect to www.domain.com/folder.
I am wondering from a SEO perspective if this is a good idea?
I believe that the meta instant refresh will be treated as a 301 (permanent) redirect by the important search engines so I presume that www.domain.com and www.domain.com/folder will be treated as the same page, and also be considered the same page for link popularity too. Is this correct?
Is there any arguments (preferably with some sort of proof I can give them) that I can use to argue against them doing this?