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Make option and optgroup actually disabled inside disabled select #12205

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Make option and optgroup actually disabled inside disabled select #12205

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9e2c274
Fix select option disabled selector
josepharhar Feb 26, 2026
cefa390
Merge branch 'main' into disabledhover
josepharhar Apr 13, 2026
0b4dbe8
Make actually disabled depend on ancestor select
josepharhar Apr 13, 2026
01b1944
make same fix for optgroup
josepharhar Apr 16, 2026
ac4011b
fix optgroup ancestors
josepharhar Apr 25, 2026
7b78ae3
rename algorithm
josepharhar Apr 27, 2026
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17 changes: 11 additions & 6 deletions source
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Original file line number Diff line number Diff line change
Expand Up @@ -57526,15 +57526,15 @@ interface <dfn interface>HTMLOptionElement</dfn> : <span>HTMLElement</span> {
</div>

<div algorithm>
<p>To get the <dfn><code>option</code> element nearest ancestor <code>select</code></dfn> given an
<code>option</code> <var>option</var>, run these steps. They return a <code>select</code> or
null.</p>
<p>To get the <dfn data-x="option element nearest ancestor select">nearest ancestor
<code>select</code></dfn> given an <code>Element</code> <var>element</var>, run these steps. They
return a <code>select</code> or null.</p>

<ol>
<li><p>Let <var>ancestorOptgroup</var> be null.</p></li>

<li>
<p>For each <var>ancestor</var> of <var>option</var>'s <span data-x="ancestor">ancestors</span>,
<p>For each <var>ancestor</var> of <var>elements</var>'s <span data-x="ancestor">ancestors</span>,
in reverse <span>tree order</span>:</p>

<ol>
Expand Down Expand Up @@ -79215,9 +79215,14 @@ contradict people?

<li>a <code>textarea</code> element that is <span data-x="concept-fe-disabled">disabled</span></li>

<li>an <code>optgroup</code> element that has a <code data-x="attr-optgroup-disabled">disabled</code> attribute</li>
<li>an <code>optgroup</code> element that has a <code
data-x="attr-optgroup-disabled">disabled</code> attribute or whose <span data-x="option element
nearest ancestor select">nearest ancestor <code>select</code></span> is <span
data-x="concept-fe-disabled">disabled</span></li>
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@annevk annevk Apr 26, 2026

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We'll have to generalize the nearest ancestor select algorithm for this to work as currently this results in a type error. You're handing an optgroup to something that wants an option.

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@josepharhar josepharhar Apr 27, 2026

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Thanks, I changed the parameter from option to element


<li>an <code>option</code> element that is <span data-x="concept-option-disabled">disabled</span></li>
<li>an <code>option</code> element that is <span data-x="concept-option-disabled">disabled</span>
or whose <span data-x="option element nearest ancestor select">nearest ancestor
<code>select</code></span> is <span data-x="concept-fe-disabled">disabled</span></li>

<li>a <code>fieldset</code> element that is a <span data-x="concept-fieldset-disabled">disabled fieldset</span></li>

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