Issues

• Disallow percentage in calc() for <length>

  chromium-exportcss-valueshtmlwg-css
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  web-platform-tests/wpt#63209·chromium-wpt-export-bot opened Oct 2, 2026 · Updated Oct 2, 2026

• Test timers on a Window whose document isn't fully active

  htmltrusted-typeswg-s_webappsec
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  web-platform-tests/wpt#63202·zcorpan opened Oct 2, 2026 · Updated Oct 2, 2026
  

• Add tests for popovers moving across documents

  do not merge yethtmlstatus:needs-spec-decision
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  web-platform-tests/wpt#63185·keithamus opened Oct 1, 2026 · Updated Oct 1, 2026
  4

  

• Add test: fragment navigation after load copies scroll restoration mode

  html
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  web-platform-tests/wpt#63184·JuanSign opened Oct 1, 2026 · Updated Oct 1, 2026
  

• Remove MessagePort close event tests

  htmlwebmessagingwg-s_htmlwg
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  web-platform-tests/wpt#63174·nicolo-ribaudo opened Oct 1, 2026 · Updated Oct 1, 2026
  

• WebKit export of https://bugs.webkit.org/show_bug.cgi?id=325898

  htmlwebkit-export
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  web-platform-tests/wpt#63153·annevk opened Oct 1, 2026 · Updated Oct 1, 2026
  1

  

• Show caret and allow keyboard selection in readonly inputs

  chromium-exporthtml
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  web-platform-tests/wpt#63078·chromium-wpt-export-bot opened Sep 29, 2026 · Updated Sep 30, 2026

• layout: Apply the iso-8859-8 stylesheet when the document encoding matches

  do not merge yethtmlservo-export
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  web-platform-tests/wpt#63015·servo-wpt-sync opened Sep 28, 2026 · Updated Sep 29, 2026
  1

• Unmark sandboxed iframe top window close as tentative

  html
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  web-platform-tests/wpt#62903·shannonbooth opened Sep 23, 2026 · Updated Sep 25, 2026
  

• Test that a script-disabled iframe ignores loading=lazy on video

  html
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  web-platform-tests/wpt#62859·zcorpan opened Sep 22, 2026 · Updated Sep 22, 2026
  

• Test that play() resumes loading of a deferred loading=lazy video

  html
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  web-platform-tests/wpt#62835·zcorpan opened Sep 21, 2026 · Updated Sep 22, 2026
  1

  

• Prevent premature stylesheet completion in script tests

  html
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  web-platform-tests/wpt#62754·domenic opened Sep 17, 2026 · Updated Sep 17, 2026
  

• Test <button> in <select> with appearance:auto

  htmlstatus:needs-spec-decision
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  web-platform-tests/wpt#62674·annevk opened Sep 14, 2026 · Updated Sep 14, 2026
  

• script: clear radio group when checked radio button joins by changing form owner

  do not merge yethtmlservo-export
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  web-platform-tests/wpt#62673·servo-wpt-sync opened Sep 14, 2026 · Updated Sep 14, 2026

• Remote context serve static pages

  html
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  web-platform-tests/wpt#62562·theIDinside opened Sep 9, 2026 · Updated Sep 9, 2026
  2

  

• Web Platform Tests for HTML video poster image source

  html
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  web-platform-tests/wpt#62290·alexgoff opened Aug 28, 2026 · Updated Sep 16, 2026
  1

  

• Wait for the pending candidate before updating the pointer

  html
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  web-platform-tests/wpt#62180·zcorpan opened Aug 24, 2026 · Updated Aug 24, 2026
  

• Remove CanvasFilter tests after HTML Standard removal

  css-paint-apidocshtmlwg-css
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  web-platform-tests/wpt#62151·petamoriken opened Aug 22, 2026 · Updated Aug 24, 2026
  1

  

• Relative <base> in about:blank and about:srcdoc documents

  domhtml
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  web-platform-tests/wpt#61231·annevk opened Jul 11, 2026 · Updated Sep 7, 2026
  2

  

• Fix indeterminate progress rendering

  do not merge yethtmlservo-export
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  web-platform-tests/wpt#61136·servo-wpt-sync opened Jul 8, 2026 · Updated Jul 8, 2026
  1

• svg: Remove obsolete tref elements from web platform tests

  conformance-checkershtmlsvgwg-svg
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  web-platform-tests/wpt#60720·freebooter1052 opened Jun 18, 2026 · Updated Jun 19, 2026
  

• Add a test to document behavior of selecting an image source when src or srcset are missing from img but exist on source.

  html
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  web-platform-tests/wpt#60621·johannesodland opened Jun 14, 2026 · Updated Jun 14, 2026
  

• HTML: Add tests for resource selection and moving nodes

  html
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  web-platform-tests/wpt#60466·zcorpan opened Jun 8, 2026 · Updated Sep 23, 2026
  8

  

• Add sizes=auto object-fit source selection test

  html
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  web-platform-tests/wpt#60052·taxi-wien opened May 21, 2026 · Updated May 21, 2026
  

• Add tests for structured cloning of immutable ArrayBuffers

  htmlIndexedDBwg-webapps
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  web-platform-tests/wpt#59803·gibson042 opened May 12, 2026 · Updated May 12, 2026
  3