CJS Support

[heksein]

If to follow official documentation (https://webdriver.io/docs/api/expect-webdriverio/#default-options) and try to set custom matcher options on before hook, then ERR_REQUIRE_ESM happens on the next line:
import { setOptions } from 'expect-webdriverio'

Error:

ERROR @wdio/config:ConfigParser: Failed loading configuration file: file://***/wdio.conf.js: require() of ES Module /Users/***/node_modules/expect-webdriverio/lib/index.js from /Users/***/wdio.conf.js not supported.
Instead change the require of index.js in /Users/***/wdio.conf.js to a dynamic import() which is available in all CommonJS modules.

Error [ERR_REQUIRE_ESM]: require() of ES Module /Users/***/node_modules/expect-webdriverio/lib/index.js from /Users/***/wdio.conf.js not supported.
Instead change the require of index.js in /Users/***/wdio.conf.js to a dynamic import() which is available in all CommonJS modules.

ENV: MacOS Ventura 13.1
Node version: 19.3.0
NPX version: 9.2.0

package.json:

{
  "dependencies": {
    "@babel/cli": "^7.20.7",
    "@babel/core": "^7.20.7",
    "@babel/preset-env": "^7.20.2",
    "@babel/register": "^7.18.9",
    "@wdio/allure-reporter": "^8.0.13",
    "@wdio/cli": "^8.0.13",
    "@wdio/concise-reporter": "^8.3.0",
    "@wdio/local-runner": "^8.0.13",
    "@wdio/mocha-framework": "^8.0.13",
    "@wdio/spec-reporter": "^8.0.13",
    "chromedriver": "^108.0.0",
    "csv-parse": "^5.3.3",
    "fs": "^0.0.1-security",
    "fs-extra": "^11.1.0",
    "jest-matcher-utils": "^29.4.1",
    "wdio-chromedriver-service": "^8.0.1",
    "wdio-wait-for": "^3.0.1"
  },
  "scripts": {
    "wdio": "wdio run ./wdio.conf.js"
  }
}

[christian-bromann]

This is because the package currently does not provide an CJS export. Any contributions that support for CJS are welcome.