whatwg/url

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URL Standard

Stars: 624
Forks: 166
Open beginner issues: 0
Indexed issues: 64
Avg merge: 17d 14h
Merged PRs (30d): 1

Dominant language: HTML
License: No license data
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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64 open issues indexed

What is an opaque path? Open

clarification

Difficulty 3/5 1-2 days Newbie friendliness 55/100

whatwg/url#922 · 4 comments · Opened Jun 30, 2026
Parsing with state override set to opaque path can make URLs not roundtrip Open

clarification topic: parser

Difficulty 4/5 3-5 days Newbie friendliness 38/100

whatwg/url#909 · 4 comments · Opened May 18, 2026
The opaque host parser allows the empty string, contradicting opaque hosts being "non-empty ASCII string[s]" Open

clarification topic: parser

Difficulty 3/5 1-2 days Newbie friendliness 48/100

whatwg/url#908 · 3 comments · Opened May 18, 2026
URLSearchParams inconsistent behavior with multiple same-name parameters leads to data loss on backend Open

addition/proposal needs implementer interest topic: api

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#889 · 7 comments · Opened Oct 22, 2025
New UTS46 version Open

meta topic: idna

Difficulty 1/5 Under an hour Newbie friendliness 35/100

whatwg/url#881 · 6 comments · Opened Sep 22, 2025
Windows file paths in URL parsing Open

topic: file topic: parser

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/url#873 · 11 comments · Opened Jun 13, 2025
Empty labels (consecutive dots, and trailing dot for host writing + UTS46) Open

topic: parser

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/url#871 · 1 comment · Opened Apr 21, 2025
Clarify: "host" definition doesn't include port, but URL host attribute getter can Open

clarification

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

whatwg/url#870 · Opened Apr 7, 2025
Usage of the term "hostname" may need clarifications as it clashes with popular usage Open

clarification

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

whatwg/url#869 · Opened Apr 7, 2025
Ambiguity with the 1st clause of the "no scheme state" in basic parser. Open

clarification topic: parser

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

whatwg/url#867 · 3 comments · Opened Mar 21, 2025
Include invalid outputs in the table with valid versus invalid parser inputs Open

clarification

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

whatwg/url#856 · Opened Feb 15, 2025
Express validity, error correction and percent encode sets in a single table Open

clarification

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/url#855 · 1 reaction · Opened Feb 15, 2025
URLSearchParams with repeated parameters Open

clarification

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#851 · 6 comments · Opened Dec 19, 2024
Formal IPv6 address definition Open

clarification topic: model

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#839 · Opened Nov 26, 2024
Punycode behavior for labels exceeding DNS length is ill-defined Open

topic: idna topic: parser

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#824 · 8 comments · 1 reaction · Opened Mar 1, 2024
Web compatibility issue with various unknown (external) protocols like ed2k Open

topic: parser

Difficulty 5/5 Over a week Newbie friendliness 45/100

whatwg/url#815 · 16 comments · Opened Jan 29, 2024
API mechanism for reporting validity errors Open

addition/proposal

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#811 · 4 comments · 1 reaction · Opened Jan 14, 2024
Use in HTTP2/3 Pseudo-Headers Open

needs tests

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#809 · 5 comments · Opened Dec 21, 2023
A '@' character in the host part of file URLs Open

topic: file topic: parser

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#805 · 20 comments · 1 reaction · Opened Dec 5, 2023
Enforce UTF-8 when url is given to the basic URL parser Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

whatwg/url#783 · 1 comment · Opened Sep 3, 2023
Add `URL.from(object)` constructor? Open

addition/proposal needs concrete proposal needs implementer interest topic: api

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/url#782 · 11 comments · 6 reactions · Opened Aug 28, 2023
Differentiate from zero-sized fragment and no fragment in url Open

addition/proposal needs implementer interest topic: api

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/url#779 · 7 comments · 6 reactions · Opened Jul 13, 2023
invalid-reverse-solidus error definition has character mixed up. Open

clarification

Difficulty 1/5 Under an hour Newbie friendliness 58/100

whatwg/url#772 · 6 comments · Opened May 26, 2023
Skipping an item while iterating is undefined Open

clarification

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#768 · 1 comment · Opened May 3, 2023
Consider defining a primitive for a host-and-port parser Open

integration

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#767 · Opened Apr 2, 2023
URLSearchParams append/set: variadic values argument? Open

addition/proposal needs implementer interest topic: api

Difficulty 4/5 3-5 days Newbie friendliness 35/100

whatwg/url#762 · 6 comments · Opened Mar 14, 2023
Allow `[` and `]` as URL code-points Open

topic: validation

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#753 · 4 comments · 3 reactions · Opened Feb 11, 2023
Allow specifying additional "special" schemes. Open

clarification

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#749 · 3 comments · 4 reactions · Opened Feb 5, 2023
Be clearer that non-UTF-8 code paths are only relevant for a small subset of implementations Open

clarification

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#746 · 1 reaction · Opened Jan 24, 2023
Allow encoding of null values in `application/x-www-form-urlencoded`. Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#732 · 19 comments · Opened Jan 4, 2023
Proposal: Add a normalization interface Open

addition/proposal needs implementer interest topic: api

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#729 · 1 comment · Opened Dec 16, 2022
It is unlikely that the spec's two definitions of valid URL strings are equal Open

topic: validation

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#704 · 8 comments · 1 reaction · Opened Sep 2, 2022
Proposal: URL.parseIPv4() URL.parseIPv6() Open

addition/proposal needs implementer interest topic: api

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#696 · 6 comments · Opened Jun 13, 2022
Clarify whether "host state" does nothing or is an alias of "hostname state" Open

clarification

Difficulty 3/5 1-2 days Newbie friendliness 25/100

whatwg/url#681 · 1 comment · Opened Jan 4, 2022
Allow queries in relative references when the baseURL has an opaque path Open

addition/proposal needs implementer interest topic: parser

Difficulty 4/5 3-5 days Newbie friendliness 35/100

whatwg/url#668 · 9 comments · Opened Oct 27, 2021
Invoking serializer "exclude fragment" from API Open

addition/proposal needs implementer interest topic: api

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/url#628 · 2 comments · Opened Aug 11, 2021
Preserve "localhost" in file URLs? Open

topic: file topic: parser

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#618 · 5 comments · Opened Jul 6, 2021
The web needs a stable definition of a Query Parameter in a URL Open

clarification

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#617 · 9 comments · Opened Jun 30, 2021
Are drive letters always invalid? Open

topic: file topic: validation

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#612 · 11 comments · Opened Jun 5, 2021
Should we unescape characters in path? Open

clarification

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/url#606 · 19 comments · Opened May 21, 2021
Escape mailto: pathnames? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#602 · 2 comments · Opened May 16, 2021
Should file URLs have opaque hostnames? Open

topic: file topic: parser

Difficulty 5/5 Over a week Newbie friendliness 20/100

whatwg/url#599 · 16 comments · Opened May 15, 2021
Base URL Windows drive sometimes favoured over input string drive Open

topic: file topic: parser

Difficulty 4/5 3-5 days Newbie friendliness 35/100

whatwg/url#574 · 14 comments · Opened Jan 23, 2021
Omitting www might be confusing for users Open

clarification

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#568 · 5 comments · 21 reactions · Opened Jan 2, 2021
file: URL separator deduplication API Open

addition/proposal needs implementer interest topic: api topic: file

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#552 · 15 comments · 1 reaction · Opened Oct 8, 2020
Refusing a mix of numeric-only and BIDI domains Open

topic: idna topic: parser

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/url#543 · 49 comments · Opened Sep 13, 2020
Support relative URLs Open

addition/proposal needs implementer interest topic: api topic: model

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/url#531 · 74 comments · 138 reactions · Opened Jul 17, 2020
Public Suffix API Open

addition/proposal needs implementer interest topic: api

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/url#528 · 19 comments · 15 reactions · Opened Jun 24, 2020
export 'percent-encode' Open

meta

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#522 · 1 comment · Opened May 28, 2020
Windows drive letter uppercasing Open

topic: file topic: parser

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/url#515 · 11 comments · Opened May 13, 2020

whatwg/url

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