Im trying to get the MTA-STS worker to work from https://365labs.cloud/blog/mta-sts-using-cloudflare-workers but whenever I follow the steps my worker will show; xxxxx.workers.dev is not defined in the mta-sts worker And the URL for my own domain https://mta-sts.xxx.well-known/mta-sts.txt Will show nothing, does anyone know how to solve this ?