Error when starting ReLaXed

[Calinou]

OS: Fedora 27 Node.js version: 8.11.2

When running relaxed example_file.pug, I get:

(node:15547) UnhandledPromiseRejectionWarning: Error: socket hang up
    at createHangUpError (_http_client.js:331:15)
    at Socket.socketOnEnd (_http_client.js:423:23)
    at emitNone (events.js:111:20)
    at Socket.emit (events.js:208:7)
    at endReadableNT (_stream_readable.js:1064:12)
    at _combinedTickCallback (internal/process/next_tick.js:138:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)
(node:15547) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:15547) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

I installed ReLaXed using yarn global add relaxedjs.

[DanielRuf]

Do you have some firewall or security solution running which blocks the browser from starting?

[Calinou]

@DanielRuf No, both SELinux and firewalld are disabled on my machine.

However, I only have Chromium (and not Google Chrome) installed. A few weeks ago, I've been able to get ReLaXed working on a different machine with the same OS though.

[DanielRuf]

However, I only have Chromium (and not Google Chrome) installed. A few weeks ago, I've been able to get ReLaXed working on a different machine with the same OS though.

Interesting, can this be reproduced?

[Zulko]

Any success with this @Calinou ?