pnpm build won't succeed with vue-codemirror

[akil-rails]

How should I got about solving for the following ?

This comes with at the time of build .

import { Codemirror } from "vue-codemirror";
         ^^^^^^^^^^
SyntaxError: Named export 'Codemirror' not found. The requested module 'vue-codemirror' is a CommonJS module, which may not support all module.exports as named exports.
CommonJS modules can always be imported via the default export, for example using:

import pkg from 'vue-codemirror';
const { Codemirror } = pkg;

package.json

...
  "main": "./dist/vue-codemirror.cjs.js",
  "module": "./dist/vue-codemirror.esm.js",
  "types": "./dist/vue-codemirror.esm.d.ts",
...

[akil-rails]

The following makes the issue go away - but why?

{
  ssgOptions: {
    format: 'cjs'
  }
}