Unfortunately there isn't a quick fix for the wardrobe to make it start working again :( It uses this super old XML format for the returns, that a lot of browsers have started to drop support for because everyone moved on to JSON (which is what the new wardrobe uses).

The hair salon not working sucks, but for the rest of the wardrobe features we really suggest using the beta wardrobe.

I wish I could just change a few lines of code to fix the wardrobe, but it doesn't work like that :(

Nope, we opened it up to everyone awhile ago, the last time the wardrobe was being awful.

I've made a notice on the top of the current wardrobe alerting everyone else to this, as well :).