Issues

• What is an opaque path?

  clarification
  whatwg/url#922 · Filter by author JKingweb opened on Jun 30, 2026
  4

• Parsing with state override set to opaque path can make URLs not roundtrip

  clarificationtopic: parser
  whatwg/url#909 · Filter by author Scripter17 opened on May 18, 2026
  4

• The opaque host parser allows the empty string, contradicting opaque hosts being "non-empty ASCII string[s]"

  clarificationtopic: parser
  whatwg/url#908 · Filter by author Scripter17 opened on May 18, 2026
  3

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

  addition/proposalneeds implementer interesttopic: api
  whatwg/url#889 · Filter by author Voral opened on Oct 22, 2025
  7

• New UTS46 version

  metatopic: idna
  whatwg/url#881 · Filter by author socram8888 opened on Sep 22, 2025
  6

• Windows file paths in URL parsing

  topic: filetopic: parser
  whatwg/url#873 · Filter by author mertcanaltin opened on Jun 13, 2025
  11

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

  topic: parser
  whatwg/url#871 · Filter by author ukusormus opened on Apr 21, 2025
  1

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

  clarification
  whatwg/url#870 · Filter by author ukusormus opened on Apr 7, 2025

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

  clarification
  whatwg/url#869 · Filter by author ukusormus opened on Apr 7, 2025

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

  clarificationtopic: parser
  whatwg/url#867 · Filter by author dannyniu opened on Mar 21, 2025
  3

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

  clarification
  whatwg/url#856 · Filter by author alwinb opened on Feb 15, 2025

• Express validity, error correction and percent encode sets in a single table

  clarification
  whatwg/url#855 · Filter by author alwinb opened on Feb 15, 2025

• URLSearchParams with repeated parameters

  clarification
  whatwg/url#851 · Filter by author tomasdev opened on Dec 19, 2024
  6

• Formal IPv6 address definition

  clarificationtopic: model
  whatwg/url#839 · Filter by author annevk opened on Nov 26, 2024

• Punycode behavior for labels exceeding DNS length is ill-defined

  topic: idnatopic: parser
  whatwg/url#824 · Filter by author hsivonen opened on Mar 1, 2024
  8

• Web compatibility issue with various unknown (external) protocols like ed2k

  topic: parser
  whatwg/url#815 · Filter by author evilpie opened on Jan 29, 2024
  16

• API mechanism for reporting validity errors

  addition/proposal
  whatwg/url#811 · Filter by author jasnell opened on Jan 14, 2024
  4

• Use in HTTP2/3 Pseudo-Headers

  needs tests
  whatwg/url#809 · Filter by author ethanresnick opened on Dec 21, 2023
  5

• A '@' character in the host part of file URLs

  topic: filetopic: parser
  whatwg/url#805 · Filter by author hayatoito opened on Dec 5, 2023
  20

• Enforce UTF-8 when url is given to the basic URL parser

  whatwg/url#783 · Filter by author annevk opened on Sep 3, 2023
  1

• Add URL.from(object) constructor?

  addition/proposalneeds concrete proposalneeds implementer interesttopic: api
  whatwg/url#782 · Filter by author tabatkins opened on Aug 28, 2023
  11

• Differentiate from zero-sized fragment and no fragment in url

  addition/proposalneeds implementer interesttopic: api
  whatwg/url#779 · Filter by author lu-zero opened on Jul 13, 2023
  7

• invalid-reverse-solidus error definition has character mixed up.

  clarification
  whatwg/url#772 · Filter by author JamesNJep opened on May 26, 2023
  6

• Skipping an item while iterating is undefined

  clarification
  whatwg/url#768 · Filter by author SuperSonicHub1 opened on May 3, 2023
  1

• Consider defining a primitive for a host-and-port parser

  integration
  whatwg/url#767 · Filter by author annevk opened on Apr 2, 2023