Issues

• cli: fmt option to always insert newlines and indents

  kristoff-it/superhtml#148 · Filter by author nektro opened on Jun 12, 2026
  1

• add support for link type extensions (<link [rel]>)

  contributor-friendlygood first issue
  kristoff-it/superhtml#143 · Filter by author vitalyster opened on May 6, 2026
  1

• Conditionally add HTML attributes (e.g. required, disabled)

  templating
  kristoff-it/superhtml#137 · Filter by author DannyJJK opened on Feb 14, 2026

• --syntax-only doesn't seem to agree with templates

  kristoff-it/superhtml#123 · Filter by author owlwres opened on Dec 3, 2025
  2

• Erroneous diagnostics for datetime formatting

  bug
  kristoff-it/superhtml#118 · Filter by author olivierdelree opened on Oct 20, 2025
  1

  

• web components: implement parsing logic for the custom elements manifest file format

  contributor-friendly
  kristoff-it/superhtml#110 · Filter by author kristoff-it opened on Sep 23, 2025

• web components: add support for custom elements manifest

  contributor-friendly
  kristoff-it/superhtml#109 · Filter by author kristoff-it opened on Sep 23, 2025

• vscode: duplicated (and wrong) end tag suggestions

  upstreamvscode
  kristoff-it/superhtml#107 · Filter by author kristoff-it opened on Sep 21, 2025
  1

• <input> [autocomplete] [min] [max] [step]: implement validation

  contributor-friendly
  kristoff-it/superhtml#91 · Filter by author kristoff-it opened on Sep 13, 2025

• <iframe> [allow]: implement missing validation case

  contributor-friendly
  kristoff-it/superhtml#90 · Filter by author kristoff-it opened on Sep 13, 2025

• <link> [imgsizes]: implement validation

  kristoff-it/superhtml#89 · Filter by author kristoff-it opened on Sep 13, 2025

• <source> [sizes]: implement validation when nested under <picture>

  kristoff-it/superhtml#87 · Filter by author kristoff-it opened on Sep 13, 2025

• <base>: move uniqueness validation to <head>

  kristoff-it/superhtml#86 · Filter by author kristoff-it opened on Sep 13, 2025

• <track> [label] [srclang] [kind]: validate cross-element attribute combination

  kristoff-it/superhtml#85 · Filter by author kristoff-it opened on Sep 13, 2025

• [autocomplete]: implement 'token list' option

  kristoff-it/superhtml#84 · Filter by author kristoff-it opened on Sep 13, 2025

• <main>: hierarchically correct main and 'form with accessible name'

  kristoff-it/superhtml#83 · Filter by author kristoff-it opened on Sep 13, 2025

• <th> [scope]: Implement missing rules

  kristoff-it/superhtml#82 · Filter by author kristoff-it opened on Sep 13, 2025

• <script> [integrity]: implement validation

  contributor-friendly
  kristoff-it/superhtml#81 · Filter by author kristoff-it opened on Sep 13, 2025

• <input> [pattern]: Validate JS regular expression syntax

  contributor-friendly
  kristoff-it/superhtml#80 · Filter by author kristoff-it opened on Sep 13, 2025

• Add Web Client support for the VSCode extension

  contributor-friendlyvscode
  kristoff-it/superhtml#35 · Filter by author kristoff-it opened on Sep 16, 2024

• Implement CSS parser

  kristoff-it/superhtml#4 · Filter by author kristoff-it opened on Jul 5, 2024
  2