Allow the creation of null registry element and shadow root #1424
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@rniwa @annevk here's another PR from what we discussed. May be a dumb question: with this change, we probably no longer want to use null as the default vaule for |
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You mean someone doing: |
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This matches my understanding of the first set of changes proposed in #1413 (comment) and agreed to at TPAC. Good job! |
sorvell
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Nov 19, 2025
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…ing null to createEleent and attachShadow per whatwg/dom#1424 Also update the existing tests to account for the behavior differences.`
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…ing null to createEleent and attachShadow per - whatwg/dom#1424 - whatwg/dom#1423 Also update the existing tests to account for the behavior differences.`
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…ing null to createEleent and attachShadow per - whatwg/dom#1424 - whatwg/dom#1423 Also update the existing tests to account for the behavior differences.`
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…ing null to createEleent and attachShadow per (#56108) - whatwg/dom#1424 - whatwg/dom#1423 Also update the existing tests to account for the behavior differences.`
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As part of the effort to support null custom element registry elements without shadow DOM, we're updating the spec to allow the creation of element and shadowroot to use null as a valid argument and create null registry element and shadowroot.
Fixes #1413 partially. We need another PR to support element attribute for null custom element registry in addition to #1423.
(See WHATWG Working Mode: Changes for more details.)
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