#3148)

* test: add headerslist copy check

* Apply suggestions from code review

* Update request.js

* Update test/fetch/request.js

* Do not leak signal listeners

Signed-off-by: Matteo Collina <hello@matteocollina.com>

* fixup

Signed-off-by: Matteo Collina <hello@matteocollina.com>

* Update lib/web/fetch/request.js

Co-authored-by: Aras Abbasi <aras.abbasi@googlemail.com>

---------

Signed-off-by: Matteo Collina <hello@matteocollina.com>
Co-authored-by: Aras Abbasi <aras.abbasi@googlemail.com>

Noticed while reading thru the code.

This reverts commit e5b7200.

Bumps node from `6d0f18a` to `db8772d`.

---
updated-dependencies:
- dependency-name: node
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* fix header cloning bug

* Apply suggestions from code review

* Apply suggestions from code review

* Update headers.js

Refs: nodejs/node#50275

* create fast MessageEvent

* expose

* use

* fixup

* preserve dictionary key name in webidl errors

* a sequence is not *iterable*

Co-authored-by: github-actions <github-actions@github.com>