Re: [csswg-drafts] [css-conditional-5] `CSSContainerRule.containerName`/`containerQuery` should return a list (#10845)

The CSS Working Group just discussed ``[css-conditional-5] `CSSContainerRule.containerName`/`containerQuery` should return a list``, and agreed to the following:

* `RESOLVED: Adopt emilio's proposed design.`

<details><summary>The full IRC log of that discussion</summary>
&lt;fantasai> emilio: Resolved previously to [?], but didn't have a good way to present in OM<br>
&lt;fantasai> emilio: But this is in Interop 2026 so we need to know<br>
&lt;TabAtkins> +1 to emilio's design<br>
&lt;fantasai> emilio: I suggested that .containerQuery and .containerName return empty string if multiple values<br>
&lt;fantasai> emilio: and then return a disctionary separately<br>
&lt;kbabbitt> s/[?]/have multiple conditions in CSSContainerRule/<br>
&lt;fantasai> emilio: [missed]<br>
&lt;ChrisL> s/disc/dict/<br>
&lt;emilio> https://github.com/w3c/csswg-drafts/pull/13635<br>
&lt;Rossen> ack kizu<br>
&lt;Rossen> ack fantasai<br>
&lt;Rossen> fantasai: was wondering if name and qry and is comma separated?<br>
&lt;Rossen> emilio: name and qry and both are optional but at least one is needed<br>
&lt;fantasai> fantasai: name is nullable but query isn't?<br>
&lt;Rossen> https://github.com/w3c/csswg-drafts/issues/10845#issuecomment-4046359463<br>
&lt;TabAtkins> dictionary ContainerCondition {<br>
&lt;TabAtkins>   CSSOMString? name;<br>
&lt;TabAtkins>   CSSOMString query;<br>
&lt;TabAtkins> };<br>
&lt;TabAtkins> <br>
&lt;TabAtkins> readonly attribute FrozenArray&lt;ContainerCondition> conditions;<br>
&lt;jfkthame> In the PR https://github.com/w3c/csswg-drafts/pull/13635/changes/a962648547f5d9407cea877fcb7fdcfb4b4471ed both strings are required<br>
&lt;fantasai> emilio: Spec PR gets it right<br>
&lt;fantasai> RESOLVED: Adopt emilio's proposed design.<br>
</details>


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Received on Wednesday, 25 March 2026 16:19:59 UTC