types: fix deleteCookie attributes

[mayur-shenoy]

This relates to...

Fixes #5458

Rationale

deleteCookie(headers, name, attributes) accepts path and domain at runtime, but the TypeScript declaration exposed name and domain.

The cookie name is already provided as the second argument, so name should not be accepted inside the attributes object. This updates the declaration to match the runtime behavior and existing cookie usage.

Changes

Updates the deleteCookie TypeScript declaration and adds tsd coverage for the accepted/rejected attributes.

Features

N/A

Bug Fixes

• Allows deleteCookie(headers, name, { path: '/' }) in TypeScript
• Rejects deleteCookie(headers, name, { name: '...' }) in TypeScript
• Keeps domain supported as before

Breaking Changes and Deprecations

N/A

Status

• I have read and agreed to the Developer's Certificate of Origin
• Tested
• Benchmarked (optional)
• Documented
• Review ready
• In review
• Merge ready

[Copilot]

Pull request overview

Aligns Undici’s TypeScript declarations for deleteCookie() with its documented/runtime behavior, fixing a type drift that prevented valid { path } usage while incorrectly allowing { name } inside the attributes object.

Changes:

• Update deleteCookie(headers, name, attributes) typing to accept { path?: string, domain?: string } instead of { name?: string, domain?: string }.
• Add tsd coverage to ensure { path } is accepted and { name } is rejected in TypeScript.

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
types/cookies.d.ts	Fixes the deleteCookie attributes type to allow path and disallow redundant name, matching runtime/docs.
test/types/cookies.test-d.ts	Adds tsd assertions for accepted/rejected deleteCookie attributes.

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