`wrangler dev` fails when `workers_dev = true` and custom routes are specified

Reproduce the bug

It’s very simple. I have a rust project, and I have run this with wrangler.toml.

name = "do-ws"
workers_dev = true

main = "build/worker/shim.mjs"
compatibility_date = "2022-01-20"

routes = [
    { pattern = "u-tygra-dev.api.pajkovsky.io", custom_domain = true, zone_id = "..." }
]

[build]
command = "cargo install -q worker-build --version 0.0.7 && worker-build --release"

[durable_objects]
bindings = [
  { name = "WEBSOCKETS", class_name = "WebSocketStore" }
]

[[migrations]]
tag = "v1"
new_classes = ["WebSocketStore"]

[env.prod]
name = "do-ws-prod"
workers_dev = false
routes = [
    { pattern = "u-tygra.api.pajkovsky.io", custom_domain = true, zone_id = "..." }
]
vars = { ENVIRONMENT = "prod" }
durable_objects.bindings = [
  {name = "WEBSOCKETS", class_name = "WebSocketStore", script_name = "do-ws-prod"}
]

And running wrangler dev fails with error

- http://192.168.1.244:8787
✘ [ERROR] Error while creating remote dev session: TypeError: fetch failed

      at Object.processResponse
  (/Users/npajkovsky/freelancer/u-tygra/be/node_modules/wrangler/wrangler-dist/cli.js:8846:27)
      at /Users/npajkovsky/freelancer/u-tygra/be/node_modules/wrangler/wrangler-dist/cli.js:9178:42
      at node:internal/process/task_queues:141:7
      at AsyncResource.runInAsyncScope (node:async_hooks:202:9)
      at AsyncResource.runMicrotask (node:internal/process/task_queues:138:8)
      at processTicksAndRejections (node:internal/process/task_queues:96:5) {
    cause: Error: getaddrinfo ENOTFOUND pajkovsky.io
        at GetAddrInfoReqWrap.onlookup [as oncomplete] (node:dns:71:26) {
      errno: -3008,
      code: 'ENOTFOUND',
      syscall: 'getaddrinfo',
      hostname: 'pajkovsky.io'
    }
  }

Environment and versions

• operating system: Linux/Mac
• output of wrangler -V:

 ⛅️ wrangler 2.1.11
--------------------

• output of node -v: v16.16.0

Why am I getting this error?

[penalosa]

I believe this is because we make some requests to the route zone (prewarm, I think, and possibly others). A quick win could be to find those requests and make them to the custom route instead. A workaround for now is to make sure that your root zone resolves to something, but this is definitely something we’ll fix.

[ahaoboy]

Same issue.

git clone https://github.com/ahaoboy/v8-cf.git

cd v8-cf

pnpm i

pnpm run dev

// Error while creating remote dev session: TypeError: fetch failed

System: OS: macOS 13.0 Binaries: Node: 18.9.0 - ~/Library/Caches/fnm_multishells/60050_1667356309613/bin/node Yarn: 1.22.19 - ~/Library/Caches/fnm_multishells/60050_1667356309613/bin/yarn npm: 8.19.1 - ~/Library/Caches/fnm_multishells/60050_1667356309613/bin/npm Browsers: Chrome: 107.0.5304.87 Edge: Not Found Firefox: Not Found Safari: 16.1