Issues

• Proposed agenda for CSSWG meeting

  WICG/webcomponents#1124 · Filter by author jpzwarte opened on Jun 10, 2026
  1

• Streaming DSD

  WICG/webcomponents#1123 · Filter by author henrijoss opened on Apr 28, 2026

• Reference Target: feedback from developers

  WICG/webcomponents#1120 · Filter by author alice opened on Dec 19, 2025
  2

• Addressable comments (a very small DOM parts subset)

  WICG/webcomponents#1116 · Filter by author noamr opened on Nov 13, 2025
  29

• Manual slot assignment and slot elements in consuming components

  WICG/webcomponents#1115 · Filter by author Schommer475 opened on Oct 17, 2025

• Reference Target: Rethinking attribute reflection for invalid reference targets

  WICG/webcomponents#1114 · Filter by author alice opened on Oct 2, 2025
  4

• [declarative-custom-elements] Use cases: progressive enhancement in (legacy) websites

  WICG/webcomponents#1112 · Filter by author frederikbosch opened on Aug 30, 2025

• Reference Target "phase 2": seeking feedback and use cases

  WICG/webcomponents#1111 · Filter by author alice opened on Aug 22, 2025
  11

• Managing states with CustomStateSet

  WICG/webcomponents#1110 · Filter by author Westbrook opened on Aug 19, 2025
  1

• Proposal: Composable shadow roots, for extending builtins and more

  WICG/webcomponents#1108 · Filter by author LeaVerou opened on Jul 20, 2025
  5

• agAST: A counter-proposal to dom-parts?

  WICG/webcomponents#1106 · Filter by author conartist6 opened on Jul 2, 2025
  6

• [declarative-custom-elements] Use cases: data transformation

  WICG/webcomponents#1103 · Filter by author sashafirsov opened on Apr 17, 2025

• [declarative-custom-elements] Use case: NO-JS

  WICG/webcomponents#1102 · Filter by author sashafirsov opened on Apr 17, 2025
  1

• [declarative-custom-elements] Use case: framework integration

  WICG/webcomponents#1100 · Filter by author justinfagnani opened on Apr 12, 2025
  2

• [declarative-custom-elements] Use cases

  WICG/webcomponents#1099 · Filter by author justinfagnani opened on Apr 12, 2025
  11

• Reference Target: How to handle events fired on the reference target by related elements?

  WICG/webcomponents#1098 · Filter by author alice opened on Apr 7, 2025
  29

• Creating non-ugraded defined custom element : createElement(tagname, {upgrade:false})

  WICG/webcomponents#1097 · Filter by author denis-migdal opened on Feb 17, 2025
  9

• Sessions for March 26th W3C Breakout Day 2025

  WICG/webcomponents#1095 · Filter by author rniwa opened on Feb 15, 2025
  10

• Reference Target: Which attributes are in scope?

  WICG/webcomponents#1091 · Filter by author alice opened on Dec 9, 2024
  8

• [declarative-custom-elements] do we need DOM parts or any template mechanism in spec?

  WICG/webcomponents#1090 · Filter by author mildred opened on Dec 6, 2024
  6

• Reference Target: How should we treat invalid reference targets for relations set via Element IDL attributes?

  WICG/webcomponents#1089 · Filter by author alice opened on Dec 5, 2024
  12

• Reference Target Tracking Issue

  WICG/webcomponents#1086 · Filter by author dandclark opened on Nov 27, 2024
  5

• Preventing re-renders prior to first call to connectedCallback()

  WICG/webcomponents#1081 · Filter by author br3nt opened on Oct 16, 2024
  6

• A components framework based on <template>

  WICG/webcomponents#1077 · Filter by author yuval-a opened on Oct 14, 2024

• case-sensitive access to HTML attributes (as they were written) would be useful for framework authors

  WICG/webcomponents#1076 · Filter by author trusktr opened on Oct 13, 2024
  8