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Re: [csswg-drafts] [mediaqueries-5] Script control of (prefers-*) queries (#6517)

From: Tab Atkins Jr. via GitHub <sysbot+gh@w3.org>
Date: Fri, 13 Aug 2021 21:56:46 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-898739613-1628891805-sysbot+gh@w3.org>
> Namely, a very natural extension is one that lets you toggle preferences per site and if there's only one thing to set then there's a race between the site and the extension: if they both attempt to override the preference the last one to do so wins.

Sure, but why would you use both a site-based and an extension-based toggle on the same page? One or the other would work fine, so I don't think we need to worry about colliding.

(And it's not like the extension can guarantee things anyway, since the page might use *only* a manually-set light/dark pref, initialized from the standard MQ.)

> Also unless overriding media queries rolls out with custom media queries how would you feature test this without overrding a preference which could itself mess with such an extension.

In this suggestion, overriding is *part* of custom MQs, so they'd go out together.

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