Bug sending message to thread

[rafaelsupport]

Hey,

I'm sending some messages to threads appending this in url: ?thread_id=<thread ID>. To send text messages is working fine, but, when I use sendFile, this method doesn't send to my thread, it send to the main text channel
How can I solve this?

const { Webhook } = require('discord-webhook-node');

const hook = new Webhook(hook_url);
hook.setUsername(username);
hook.setAvatar(avatar);

hook.sendFile(filename)