Request fails when Array.prototype['pipe'] is defined

[pen-carpinelli]

Bug Description

undici\lib\api\api-request.js line 54 throws an error if a custom pipe prototype for array is defined.

Reproducible By

1. Define a custom pipe prototype for array:
   Array.prototype['pipe'] = function () { }

2. Create a undici request with body being an array.

Expected Behavior

The request succeeds.

Logs & Screenshots

The request fails; the error body.on is not a function is thrown.

Environment

Windows 11

Additional context

[ronag]

Create a undici request with body being an array.

An array is not a valid body. So while the error might be better this should still fail.