error with esm on windows

I was following @mcollina tutorial for Fastify, and I faced with an error related to fastify-autoload plugin:

Error [ERR_UNSUPPORTED_ESM_URL_SCHEME]: Only file and data URLs are supported by the default ESM loader
    at Loader.defaultResolve [as _resolve] (internal/modules/esm/resolve.js:781:11)
    at Loader.resolve (internal/modules/esm/loader.js:85:40)
    at Loader.getModuleJob (internal/modules/esm/loader.js:229:28)
    at Loader.import (internal/modules/esm/loader.js:164:28)
    at importModuleDynamically (internal/modules/cjs/loader.js:1199:27)
    at exports.importModuleDynamicallyCallback (internal/process/esm_loader.js:30:14)
    at loadPlugin (C:\Users\amis\Desktop\fastify3-test\node_modules\fastify-autoload\index.js:117:5)
    at C:\Users\amis\Desktop\fastify3-test\node_modules\fastify-autoload\index.js:27:12
    at Array.map (<anonymous>)
    at fastifyAutoload (C:\Users\amis\Desktop\fastify3-test\node_modules\fastify-autoload\index.js:26:29) {
  code: 'ERR_UNSUPPORTED_ESM_URL_SCHEME'
}

I’m running Node v14.7.0 on Windows 10. This is how the app looks like:

app.js

import fastify from 'fastify'
import autoload from 'fastify-autoload'
import { join } from 'desm'

export default function (opts) {
    const app = fastify(opts)

    app.register(autoload, {
        dir: join(import.meta.url, 'routes')
    })

    return app
}

/routes/hello.js

export default async function (app) {
    app.get('/', async function (req, rep) {
        return { hello: 'world' }
    })
}

[mcollina]

@StarpTech can you open an issue on node core on this and tag me on it? Thanks. This is very confusing.

[StarpTech]

Because in Linux a path is a valid file URL? 🤔