CORS errors returned after nothing changed, except other people's runtimes crashing

I have duplicated this pet classifier inferencing api endpoint to develop an app. Everything was working perfectly. However, overnight recently not only did this space have a runtime error (along with many other people’s) but my duplicates started giving a CORS error which I already spent WEEKS solving.

Is this something to do with HuggingFace changing their code base? Its really frustrating and I couldn’t imagine what I would do if my app broke because of this and I lost my customers.