Node 12.13.1 - "require() of ES modules is not supported" from support-fetch-mock.js

[fruitraccoon]

After updating node from version 12.13.0 to 12.13.1, I'm seeing the warning below when running npm ci:

> fetch-mock@8.0.1 postinstall C:\Users\jljob\projects\repos\work\vehicle-turnaround\ui\node_modules\fetch-mock
> node scripts/support-fetch-mock.js

(node:24100) Warning: require() of ES modules is not supported.
require() of C:\Users\jljob\projects\repos\work\vehicle-turnaround\ui\node_modules\fetch-mock\scripts\support-fetch-mock.js is an ES module file as it is a .js file whose nearest parent package.json contains "type": "module" which defines all .js files in that package scope as ES modules.
Instead rename support-fetch-mock.js to end in .cjs, change the requiring code to use import(), or remove "type": "module" from C:\Users\jljob\projects\repos\work\vehicle-turnaround\ui\node_modules\fetch-mock\package.json.

This is from this Node change. Unfortunately it is causing our build to fail on our CI server.

Reproduction steps:

• Update node to version 12.13.1 (currently the latest LTS version)
• In an empty folder run npm init and accept all default values
• Run npm install fetch-mock

The warning above should be displayed.

Do any of the fixes suggested in the warning sound like they're a good fit for the project? (renaming the file to .cjs sounds the simplest to me)

[wheresrhys]

I'm gonna remove that script now. Thanks for reporting

[wheresrhys]

v8.0.2

[XhmikosR]

@wheresrhys doesn't seem to fix the issue :/

(node:2528) Warning: require() of ES modules is not supported.
require() of C:\Users\xmr\Desktop\web\node_modules\fetch-mock\scripts\support-fetch-mock.js is an ES module file as it is a .js file whose nearest parent package.json contains "type": "module" which defines all .js files in that package scope as ES modules.
Instead rename support-fetch-mock.js to end in .cjs, change the requiring code to use import(), or remove "type": "module" from C:\Users\xmr\Desktop\web\node_modules\fetch-mock\package.json.