🐛 BUG: wrangler dev strips port from Origin header when running with --host

[aron]

Which Cloudflare product(s) does this pertain to?

Workers Runtime

What versions are you using?

3.109.2 [wrangler]

What operating system and version are you using?

macOS 13.5 (22G74)

Please provide a link to a minimal reproduction

https://gist.github.com/aron/cd013c56e5dd1205d385c3234e60da32

Describe the Bug

When running wrangler dev with the --host parameter the port is stripped from the Origin and Referer headers. This does not happen when running without the --host.

Example project: https://gist.github.com/aron/cd013c56e5dd1205d385c3234e60da32

export default {
	async fetch(request, env, ctx) {
		return new Response(
			`Host: ${request.headers.get('host')}\nOrigin: ${request.headers.get('origin')}\nReferer: ${request.headers.get('referer')}`,
		);
	},
};

The worker prints out the Host, Origin and Referer headers in a plain text response. The wrangler config is the default.

Steps to reproduce:

Without --host:

npx wrangler dev

curl http://localhost:8787 -H 'Origin: http://localhost:8787' -H 'Referer: http://localhost:8787/some/path'
Host: localhost:8787
Origin: http://localhost:8787
Referer: http://localhost:8787/some/path

Note

Both Origin and Referer include the port as expected.

With --host localhost:4000

npx wrangler dev --host localhost:4000

curl http://localhost:8787 -H 'Origin: http://localhost:8787' -H 'Referer: http://localhost:8787/some/path'
Host: localhost:4000
Origin: http://localhost
Referer: https://localhost/some/path

Note

Both Origin and Referer are missing the port.

Please provide any relevant error logs

No response