ESM imports on Windows fail with ERR_UNSUPPORTED_ESM_URL_SCHEME

[nchevsky]

Description of the bug/issue

💡 PR: #3585

In ESM projects running on Windows, when Nightwatch attempts to import() a custom assertion, custom command, or page object, it fails as follows:

┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│                                                                                                                   │
│   There was an error while trying to load the file                                                                │
│   C:\foo\bar.js:                                                                                                  │
│   [ERR_UNSUPPORTED_ESM_URL_SCHEME] Only URLs with a scheme in: file, data are supported by the default ESM        │
│   loader. On Windows, absolute paths must be valid file:// URLs. Received protocol 'c:';                          │
│                                                                                                                   │
└───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘

Switching to CommonJS, or running on a *nix operating system, works around the problem.

	CommonJS	ESM
*nix	✔️	✔️
Windows	✔️	❌

Steps to reproduce

>git clone https://github.com/nchevsky/nightwatch-repro.git
>cd nightwatchjs-repro
>npm i -D
>npx nightwatch

Actual

There was an error while trying to load the file
C:\…\nightwatch-repro\nightwatch\custom-assertions\trueEqualsTrue.js:
[ERR_UNSUPPORTED_ESM_URL_SCHEME] Only URLs with a scheme in: file, data are supported by the default ESM
loader. On Windows, absolute paths must be valid file:// URLs. Received protocol 'c:';

Expected

[Esm Import Of Custom Assertion] Test Suite
───────────────────────────────────────────────────────────────────────────────
Using: chrome (109.0.5414.120) on WINDOWS.

– ESM import of custom assertion
√ true equals true (0ms)

Nightwatch.js Version

2.6.10

Node Version

18.12.1

Operating System

Windows 11