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URLSearchParams inconsistent behavior with multiple same-name parameters leads to data loss on backend

addition/proposalNew features or enhancementsNew features or enhancements

needs implementer interestMoving the issue forward requires implementers to express interestMoving the issue forward requires implementers to express interest

Status: Open.

#889 In whatwg/url;

· Voral opened on Oct 22, 2025

URL.toJSON() returns a string, not an object — misleading name, consider toJSONObject

Status: Open.

#888 In whatwg/url;

· AndrewEQ opened on Oct 20, 2025

New UTS46 version

topic: idna

Status: Open.

#881 In whatwg/url;

· socram8888 opened on Sep 22, 2025

Resolving relative <code>file:</code> URL strings without explicit base into URL objects

Status: Open.

#879 In whatwg/url;

· LiviaMedeiros opened on Sep 11, 2025

Windows file paths in URL parsing

topic: fileAren't file: URLs the best?Aren't file: URLs the best?

topic: parser

Status: Open.

#873 In whatwg/url;

· mertcanaltin opened on Jun 13, 2025

Empty labels (consecutive dots, and trailing dot for host writing + UTS46)

Status: Open.

#871 In whatwg/url;

· ukusormus opened on Apr 21, 2025

Clarify: "host" definition doesn't include port, but URL host attribute getter can

clarificationStandard could be clearerStandard could be clearer

Status: Open.

#870 In whatwg/url;

· ukusormus opened on Apr 7, 2025

Usage of the term "hostname" may need clarifications as it clashes with popular usage

clarificationStandard could be clearerStandard could be clearer

Status: Open.

#869 In whatwg/url;

· ukusormus opened on Apr 7, 2025

URN validity as a valid URL string

Status: Open.

#868 In whatwg/url;

· pzb opened on Mar 30, 2025

Ambiguity with the 1st clause of the "no scheme state" in basic parser.

Status: Open.

#867 In whatwg/url;

· dannyniu opened on Mar 21, 2025

A branch of the "ends in a number checker" cannot be hit

Status: Open.

#865 In whatwg/url;

· domenic opened on Mar 15, 2025

Include invalid outputs in the table with valid versus invalid parser inputs

Status: Open.

#856 In whatwg/url;

· alwinb opened on Feb 15, 2025