- Linting (ESLint): Check eslintrc file itself

- Linting: Add linting plugins (mocha, chai-expect, chai-friendly, cypress)
- Testing: Change cypress plugins file to ESM (so can set up any needed unit testing tasks)

cypress/plugins/index.js

@@ -1,5 +1,4 @@
-/* globals module, require */
-/* eslint-disable import/no-commonjs */
+'use strict';
 
 // ***********************************************************
 // This example plugins/index.js can be used to load plugins
@@ -11,18 +10,7 @@
 // https://on.cypress.io/plugins-guide
 // ***********************************************************
 
-// This function is called when a project is opened or re-opened (e.g. due to
-// the project's config changing)
-
-const codeCoverageTask = require('@cypress/code-coverage/task.js');
-
-module.exports = (on, config) => {
-  // `on` is used to hook into various events Cypress emits
-  // `config` is the resolved Cypress config
-
-  // `on` is used to hook into various events Cypress emits
-  // `config` is the resolved Cypress config
-
-  // https://docs.cypress.io/guides/tooling/code-coverage.html#Install-the-plugin
-  on('task', codeCoverageTask);
-};
+require('@babel/register')({
+  plugins: ['@babel/plugin-transform-modules-commonjs']
+});
+module.exports = require('./main.js').default;

cypress/plugins/main.js

@@ -0,0 +1,16 @@
+// This function is called when a project is opened or re-opened (e.g. due to
+// the project's config changing)
+
+import codeCoverageTask from '@cypress/code-coverage/task.js';
+
+// eslint-disable-next-line import/no-anonymous-default-export
+export default (on, config) => {
+  // `on` is used to hook into various events Cypress emits
+  // `config` is the resolved Cypress config
+
+  // `on` is used to hook into various events Cypress emits
+  // `config` is the resolved Cypress config
+
+  // https://docs.cypress.io/guides/tooling/code-coverage.html#Install-the-plugin
+  on('task', codeCoverageTask);
+};