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Help wanted: Outline of headingoffset, headingreset & aria-level attributes

enhancement

help wanted

high-effort

Status: Open.

#1958 In validator/validator;

· mtrootyy opened on Dec 2, 2025

Allow custom element names in conformance with the current spec requirements

spec-conformance

waiting for implementations

Status: Open.

#1953 In validator/validator;

· AndySky21 opened on Nov 21, 2025

CLI reports different error message than web-based service for the same document (containing an non-conforming “input” element)

known issue

Status: Open.

#1858 In validator/validator;

· tomasohara opened on Jul 26, 2025

customizable select was stipulated

spec-conformance

waiting for implementations

Status: Open.

High Priority

#1854 In validator/validator;

· mtrootyy opened on Jul 22, 2025

Revamp script element introduction and conformance

spec-conformance

Status: Open.

#1829 In validator/validator;

· mtrootyy opened on May 29, 2025

No support for using the CLI/jar checker to validate DocBook documents?

help wanted

question

Status: Open.

#1823 In validator/validator;

· frankarensmeier opened on May 13, 2025

Parse error on nested CSS

CSS

Status: Open.

#1820 In validator/validator;

· martinthomson opened on May 8, 2025

Support for new speculationrules

spec-conformance

Status: Open.

#1814 In validator/validator;

· edent opened on Apr 16, 2025

Validator flags <code>@aria-label</code> on <code>&lt;svg:g&gt;</code> as invalid

aria-conformance

waiting for spec

Status: Open.

#1805 In validator/validator;

· martindholmes opened on Mar 19, 2025

href/url validation disallows '|' in queries

spec-conformance

Status: Open.

#1792 In validator/validator;

· wrengr opened on Feb 17, 2025

Inconsistence IO Error: Name or service not known

known issue

Status: Open.

#1783 In validator/validator;

· jNullj opened on Jan 18, 2025

Support custom headers

enhancement

Status: Open.

#1732 In validator/validator;

· glenthomas opened on Jun 14, 2024