🐛 BUG: Error loop/hang with `passThroughOnException` and no host

### Which Cloudflare product(s) does this pertain to?

Wrangler

### What version(s) of the tool(s) are you using?

3.91.0

### What version of Node are you using?

_No response_

### What operating system and version are you using?

macOS

### Describe the Bug

### Setup

```
wrangler.toml
src/
index.js
```

```toml
# ./wrangler.toml
name = "my-app"
main = "./src/index.js"
compatibility_date = "2024-11-26"
```

```js
// ./src/index.js

export default {
fetch(request, env, ctx) {
ctx.passThroughOnException();
throw new Error("bang");
}
}
```

### Observed behavior
1. `npx wrangler dev --no-bundle --host example.com`
1. `curl http://localhost:8787/`
1. Error twice(?) in Wrangler and return `example.com` response to cURL

1. `npx wrangler dev --no-bundle`
3. `curl http://localhost:8787/`
4. Error loop in Wrangler and hang waiting for a response in cURL

### Expected behavior
- With a `--host`, error just once(?)
- Without a `--host`, I have no idea...? Error once in Wrangler and return a null-body 500-status response for cURL?

### Please provide a link to a minimal reproduction

_No response_

### Please provide any relevant error logs

Some behind-the-scenes chat about this: https://cflare.co/passthru