Steps

• Create a new next.js app (getting started guide)
• Add an API route or server action that uses metascraper and call it

Expected

• metascraper is usable with next.js 15, which uses turbopack to build

Actual

• whenever the API route or server action is hit, next.js crashes with this error

⨯ Error: Cannot find module 'es5-ext/array/#/e-index-of'

Notes

• es5-ext uses # as a folder name, and that appears to break turbopack
• es5-ext is coming from this dependency tree

  └─┬ @metascraper/[email protected]
    └─┬ [email protected]
      └─┬ [email protected]
        └─┬ [email protected]
          ├─┬ [email protected]
          │ └── [email protected] deduped
          ├─┬ [email protected]
          │ ├─┬ [email protected]
          │ │ └── [email protected] deduped
          │ └─┬ [email protected]
          │   └── [email protected] deduped
          ├─┬ [email protected]
          │ └── [email protected] deduped
          ├─┬ [email protected]
          │ └── [email protected] deduped
          ├─┬ [email protected]
          │ └── [email protected] deduped
          └─┬ [email protected]
            └── [email protected] deduped

Minimal next.js repro

import createMetascraper from 'metascraper';

export function GET() {
  console.log(createMetascraper);
  return new Response(JSON.stringify({ here: 'test' }), { status: 200 });
}

Proposal

• could we change debug-logfmt to stop using debug-fabulous?
  • it looks like the meat of the library is one file and that could be re-implemented without using memoizee
• please let me know if you'd prefer I log the bug under debug-logfmt