v3 and onwards, you should use wrangler, rather than Miniflare.
www subdomain?

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wrangler deploy command, it succeeds with no visible error logs. But on the console we see the red exclamation mark which when you hover says "The deployment failed"87a3c637ba57424b09104e5ade4caffe if that helps. Let me know if. there is any additional info I can give that would helpv3www87a3c637ba57424b09104e5ade4caffe✨ Uploading Worker bundle
✨ Uploading _routes.json
✨ Deployment complete! Take a peek over at https://addc7a35.asy.pages.dev