Private networking on function not working

Question

I have a SvelteKit app which uses the Railway injected `PORT` of `8080`.

I have a Railway function which is triggered on a chron schedule. It works perfectly when I use the `PUBLIC_URL` of my SvelteKit app service, but not when using the private networking URL. I am using `http://` and `:8080` on that private networking URL, but I keep getting a connection refused error:

```
Error checking notifications: error: Unable to connect. Is the computer able to access the url?

path: "http://ohmydocs.railway.internal:8080/api/notifications/check-due";,

errno: 0,

code: "ConnectionRefused"
```

Any idea how to resolve? Could this be related to the new Metal servers? Both are deployed on Metal Amsterdam.

Function code:

```
const BEARER_TOKEN = Bun.env.ADMIN_BEARER_TOKEN;

// CREATE PRIVATE ENDPOINT
const OHMYDOCS_PRIVATE_URL =
  `http://` + Bun.env.OHMYDOCS_PRIVATE_URL + `:` + Bun.env.OHMYDOCS_PORT;
const OHMYDOCS_PRIVATE_ENDPOINT = new URL(
  "/api/notifications/check-due",
  OHMYDOCS_PRIVATE_URL
);

// CREATE PUBLIC ENDPOINT
const OHMYDOCS_PUBLIC_URL = `https://` + Bun.env.OHMYDOCS_PUBLIC_URL;
const OHMYDOCS_PUBLIC_ENDPOINT = new URL(
  "/api/notifications/check-due",
  OHMYDOCS_PUBLIC_URL
);

async function checkNotificationsDue() {
  try {
    // NOW USING PUBLIC ENDPOINT
    const response = await fetch(OHMYDOCS_PUBLIC_ENDPOINT, {
      method: "POST",
      headers: {
        Authorization: `Bearer ${BEARER_TOKEN}`,
        "Content-Type": "application/json",
      },
    });

if (!response.ok) {
      console.error(`Failed to check notifications: ${response.status}`);
    }

console.log(`notificationsDue endpoint hit`);
  } catch (error) {
    console.error("Error checking notifications:", error);
  }
}

checkNotificationsDue();
```