Subject of the issue

The import {URL} from 'url' line in recma-document plugin creates a compile error.

I don't think it's necessary to import the URL class since it's a global object?

Your environment

• OS: Window 10 64bit
• Packages: v.2.0.0.rc
• Env: yarn v1.22.15 Next 11.0.1

Steps to reproduce

yarn build a nextjs project.

Expected behaviour

Project compiles.

Actual behaviour

Failed to compile due to error.

./node_modules/@mdx-js/mdx/lib/plugin/recma-document.js
Attempted import error: 'URL' is not exported from 'url' (imported as 'URL').