HeadersList.clear() does not clear .cookies

[smilingthax]

Since .getSetCookie() was introduced, HeaderList has an additional .cookies field, which is not updated on .clear():

undici/lib/fetch/headers.js

Lines 95 to 98 in 816dcaa

	clear () {
	this[kHeadersMap].clear()
	this[kHeadersSortedMap] = null
	}

This is observable:

const req1 = new undici.Request('http://localhost', {
  headers: {
    'set-cookie': 'a=1'
  }
});
console.log([...req1.headers]);   // --> [ [ 'set-cookie', 'a=1' ] ]
const req2 = new undici.Request(req1, {
  headers: {}
});
console.log([...req2.headers]);    // --> []
console.log(req2.headers.getSetCookie());   // --> [ 'a=1' ]   - unexpected!

[KhafraDev]

Can you provide a code sample that uses undici.fetch & a node http server?

edit: nvm I misread it