Cloudflare Developers•13mo ago

Unable to open a websocket with a CF tunnel

If I connect to remote.exitium.uk, and host an application there (I have the below one running), I simply get 'Upgrade failed :(' Is there any additional configuration I need to do, as to enable websocket functionality (it's not disabled in the dashboard)

Bun.serve({
  port: 8080,

  fetch(req, server) {
    if (server.upgrade(req)) {
      return;
    }
    return new Response("Upgrade failed :(", { status: 500 });
  },
  tls: {
    key: Bun.file("./cfkey.pem"),
    cert: Bun.file("./cforigin.pem"),
  },
  websocket: {
      open(ws) {
          ws.send("Hello from Bun!");
      },

      message(ws, message) {
          ws.send(message);
      },
  },
});

Bun.serve({
  port: 8080,

  fetch(req, server) {
    if (server.upgrade(req)) {
      return;
    }
    return new Response("Upgrade failed :(", { status: 500 });
  },
  tls: {
    key: Bun.file("./cfkey.pem"),
    cert: Bun.file("./cforigin.pem"),
  },
  websocket: {
      open(ws) {
          ws.send("Hello from Bun!");
      },

      message(ws, message) {
          ws.send(message);
      },
  },
});

1 Reply

ExitiumOP•13mo ago

to clarify, if I use a nodejs client to connect to the wss://, it just drops immediately, no request reaches the server

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Unable to open a websocket with a CF tunnel